Merge pull request #3 from Neur0toxine/master

[enhancement] resource embedding & better migrations
2024-11-22 05:06:04 +03:00 · 2019-09-30 14:21:19 +03:00 · 2019-09-30 14:21:19 +03:00 · caf46751fe
commit caf46751fe
parent f70d1db99d 295843a85b
22 changed files with 1960 additions and 53 deletions
--- a/.travis.yml
+++ b/.travis.yml
@ -0,0 +1,12 @@
+language: go
+env:
+  - GO111MODULE=on
+go:
+  - '1.12'
+  - '1.13'
+before_install:
+  - go mod tidy
+script:
+  - go test ./... -v -cpu 2 -race -cover -coverprofile=coverage.txt -covermode=atomic
+after_success:
+  - bash <(curl -s https://codecov.io/bash)
--- a/README.md
+++ b/README.md
@ -1,3 +1,87 @@
 ## MG Transport Library
+[![Build Status](https://travis-ci.org/retailcrm/mg-transport-core.svg?branch=master)](https://travis-ci.org/retailcrm/mg-transport-core)
+[![codecov](https://codecov.io/gh/retailcrm/mg-transport-core/branch/master/graph/badge.svg)](https://codecov.io/gh/retailcrm/mg-transport-core)  
+This library provides different functions like error-reporting, logging, localization, etc. in order to make it easier to create transports.   
+Usage:
+```go
+package main

-This library provides different functions like error-reporting, logging, localization, etc. in order to make it easier to create transports
+import (
+    "os"
+    "fmt"
+    "html/template"
+
+    "github.com/gin-gonic/gin"
+    "github.com/gobuffalo/packr/v2"
+    "github.com/retailcrm/mg-transport-core/core"
+)
+
+func main() {
+    app := core.New()
+    app.Config = core.NewConfig("config.yml")
+    app.DefaultError = "unknown_error"
+    app.TranslationsPath = "./translations"
+    
+    app.ConfigureRouter(func(engine *gin.Engine) {
+        engine.Static("/static", "./static")
+        engine.HTMLRender = app.CreateRenderer(
+            func(renderer *core.Renderer) {
+                // insert templates here. Example:
+                r.Push("home", "templates/layout.html", "templates/home.html")
+            }, 
+            template.FuncMap{},
+        )
+    })
+    
+    if err := app.Prepare().Run(); err != nil {
+        fmt.Printf("Fatal error: %s", err.Error())
+        os.Exit(1)
+    }
+}
+```
+
+### Resource embedding
+[packr](https://github.com/gobuffalo/packr/tree/master/v2) can be used to provide resource embedding. In order to use packr you must follow
+[this instruction](https://github.com/gobuffalo/packr/tree/master/v2#library-installation), and provide boxes with templates,
+translations and assets to library. Example:
+```go
+package main
+
+import (
+    "os"
+    "fmt"
+    "html/template"
+
+    "github.com/gin-gonic/gin"
+    "github.com/gobuffalo/packr/v2"
+    "github.com/retailcrm/mg-transport-core/core"
+)
+
+func main() {
+    static := packr.New("assets", "./static")
+    templates := packr.New("templates", "./templates")
+    translations := packr.New("translations", "./translate")
+    
+    app := core.New()
+    app.Config = core.NewConfig("config.yml")
+    app.DefaultError = "unknown_error"
+    app.TranslationsBox = translations
+    
+    app.ConfigureRouter(func(engine *gin.Engine) {
+        engine.StaticFS("/static", static)
+        engine.HTMLRender = app.CreateRendererFS(
+            templates, 
+            func(renderer *core.Renderer) {
+                // insert templates here. Example:
+                r.Push("home", "layout.html", "home.html")
+            }, 
+            template.FuncMap{},
+        )
+    })
+    
+    if err := app.Prepare().Run(); err != nil {
+        fmt.Printf("Fatal error: %s", err.Error())
+        os.Exit(1)
+    }
+}
+```
--- a/core/config.go
+++ b/core/config.go
@ -19,13 +19,11 @@ var (
 	slashRegex      = regexp.MustCompile(`/+$`)
 )

-
 // ConfigInterface settings data structure
 type ConfigInterface interface {
 	GetVersion() string
 	GetSentryDSN() string
 	GetLogLevel() logging.Level
-	GetDebug() bool
 	GetHTTPConfig() HTTPServerConfig
 	GetDBConfig() DatabaseConfig
 	GetAWSConfig() ConfigAWS
@ -73,12 +71,12 @@ type ConfigAWS struct {

 // DatabaseConfig struct
 type DatabaseConfig struct {
-	Connection         string `yaml:"connection"`
-	Logging            bool   `yaml:"logging"`
-	TablePrefix        string `yaml:"table_prefix"`
-	MaxOpenConnections int    `yaml:"max_open_connections"`
-	MaxIdleConnections int    `yaml:"max_idle_connections"`
-	ConnectionLifetime int    `yaml:"connection_lifetime"`
+	Connection         interface{} `yaml:"connection"`
+	Logging            bool        `yaml:"logging"`
+	TablePrefix        string      `yaml:"table_prefix"`
+	MaxOpenConnections int         `yaml:"max_open_connections"`
+	MaxIdleConnections int         `yaml:"max_idle_connections"`
+	ConnectionLifetime int         `yaml:"connection_lifetime"`
 }

 // HTTPServerConfig struct
@ -145,8 +143,8 @@ func (c Config) GetTransportInfo() InfoInterface {
 	return c.TransportInfo
 }

-// GetDebug debug flag
-func (c Config) GetDebug() bool {
+// IsDebug debug flag
+func (c Config) IsDebug() bool {
 	return c.Debug
 }

@ -170,11 +168,6 @@ func (c Config) GetUpdateInterval() int {
 	return c.UpdateInterval
 }

-// IsDebug debug state
-func (c Config) IsDebug() bool {
-	return c.Debug
-}
-
 // GetName transport name
 func (t Info) GetName() string {
 	return t.Name
--- a/core/config_test.go
+++ b/core/config_test.go
@ -0,0 +1,119 @@
+package core
+
+import (
+	"io/ioutil"
+	"os"
+	"path"
+	"testing"
+
+	"github.com/op/go-logging"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+	"github.com/stretchr/testify/suite"
+)
+
+var testConfigFile = path.Join(os.TempDir(), "config_test.yml")
+
+type ConfigTest struct {
+	suite.Suite
+	config *Config
+	data   []byte
+}
+
+func (c *ConfigTest) SetupTest() {
+	c.data = []byte(`
+version: 3.2.1
+
+database:
+    connection: postgres://user:password@host:5432/dbname?sslmode=disable
+
+http_server:
+    host: example.com
+    listen: :3001
+
+transport_info:
+    name: Transport
+    code: mg-transport
+    logo_path: /static/logo.svg
+
+sentry_dsn: dsn string
+log_level: 5
+debug: true
+update_interval: 24
+
+config_aws:
+    access_key_id: key
+    secret_access_key: secret
+    region: region
+    bucket: bucket
+    folder_name: folder
+    content_type: image/jpeg`)
+	err := ioutil.WriteFile(testConfigFile, c.data, os.ModePerm)
+	require.Nil(c.T(), err)
+
+	c.config = NewConfig(testConfigFile)
+}
+
+func (c *ConfigTest) Test_GetConfigData() {
+	assert.Equal(c.T(), c.data, c.config.GetConfigData(testConfigFile))
+}
+
+func (c *ConfigTest) Test_GetVersion() {
+	assert.Equal(c.T(), "3.2.1", c.config.GetVersion())
+}
+
+func (c *ConfigTest) Test_GetDBConfig() {
+	assert.Equal(c.T(), "postgres://user:password@host:5432/dbname?sslmode=disable", c.config.GetDBConfig().Connection)
+}
+
+func (c *ConfigTest) Test_GetHttpServer() {
+	assert.Equal(c.T(), "example.com", c.config.GetHTTPConfig().Host)
+	assert.Equal(c.T(), ":3001", c.config.GetHTTPConfig().Listen)
+}
+
+func (c *ConfigTest) Test_GetTransportInfo() {
+	assert.Equal(c.T(), "Transport", c.config.GetTransportInfo().GetName())
+	assert.Equal(c.T(), "mg-transport", c.config.GetTransportInfo().GetCode())
+	assert.Equal(c.T(), "/static/logo.svg", c.config.GetTransportInfo().GetLogoPath())
+}
+
+func (c *ConfigTest) Test_GetSentryDSN() {
+	assert.Equal(c.T(), "dsn string", c.config.GetSentryDSN())
+}
+
+func (c *ConfigTest) Test_GetLogLevel() {
+	assert.Equal(c.T(), logging.Level(5), c.config.GetLogLevel())
+}
+
+func (c *ConfigTest) Test_IsDebug() {
+	assert.Equal(c.T(), true, c.config.IsDebug())
+}
+
+func (c *ConfigTest) Test_GetUpdateInterval() {
+	assert.Equal(c.T(), 24, c.config.GetUpdateInterval())
+}
+
+func (c *ConfigTest) Test_GetConfigAWS() {
+	assert.Equal(c.T(), "key", c.config.GetAWSConfig().AccessKeyID)
+	assert.Equal(c.T(), "secret", c.config.GetAWSConfig().SecretAccessKey)
+	assert.Equal(c.T(), "region", c.config.GetAWSConfig().Region)
+	assert.Equal(c.T(), "bucket", c.config.GetAWSConfig().Bucket)
+	assert.Equal(c.T(), "folder", c.config.GetAWSConfig().FolderName)
+	assert.Equal(c.T(), "image/jpeg", c.config.GetAWSConfig().ContentType)
+}
+
+func (c *ConfigTest) TearDownTest() {
+	_ = os.Remove(testConfigFile)
+}
+
+func TestConfig_Suite(t *testing.T) {
+	suite.Run(t, new(ConfigTest))
+}
+
+func TestConfig_NoFile(t *testing.T) {
+	defer func() {
+		assert.NotNil(t, recover())
+	}()
+
+	_ = NewConfig(path.Join(os.TempDir(), "file_which_should_not_exist_anyway"))
+}
--- a/core/engine.go
+++ b/core/engine.go
@ -4,6 +4,7 @@ import (
 	"html/template"

 	"github.com/gin-gonic/gin"
+	"github.com/gobuffalo/packr/v2"
 	"github.com/op/go-logging"
 )

@ -77,7 +78,6 @@ func (e *Engine) Prepare() *Engine {
 	e.createRavenClient(e.Config.GetSentryDSN())
 	e.resetUtils(e.Config.GetAWSConfig(), e.Config.IsDebug(), 0)
 	e.Logger = NewLogger(e.Config.GetTransportInfo().GetCode(), e.Config.GetLogLevel(), e.LogFormatter)
-	e.Utils.Localizer = &e.Localizer
 	e.Sentry.Localizer = &e.Localizer
 	e.Utils.Logger = e.Logger
 	e.Sentry.Logger = e.Logger
@ -104,6 +104,14 @@ func (e *Engine) CreateRenderer(callback func(*Renderer), funcs template.FuncMap
 	return renderer
 }

+// CreateRendererFS with translation function and packr box with templates data
+func (e *Engine) CreateRendererFS(box *packr.Box, callback func(*Renderer), funcs template.FuncMap) Renderer {
+	renderer := NewRenderer(e.TemplateFuncMap(funcs))
+	renderer.TemplatesBox = box
+	callback(&renderer)
+	return renderer
+}
+
 // Router will return current gin.Engine or panic if it's not present
 func (e *Engine) Router() *gin.Engine {
 	if !e.prepared {
--- a/core/engine_test.go
+++ b/core/engine_test.go
@ -0,0 +1,160 @@
+package core
+
+import (
+	"database/sql"
+	"html/template"
+	"io/ioutil"
+	"os"
+	"testing"
+
+	"github.com/DATA-DOG/go-sqlmock"
+	"github.com/gin-gonic/gin"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+	"github.com/stretchr/testify/suite"
+)
+
+type EngineTest struct {
+	suite.Suite
+	engine *Engine
+}
+
+func (e *EngineTest) SetupTest() {
+	var (
+		db  *sql.DB
+		err error
+	)
+
+	e.engine = New()
+	require.NotNil(e.T(), e.engine)
+
+	db, _, err = sqlmock.New()
+	require.NoError(e.T(), err)
+
+	if _, err := os.Stat(testTranslationsDir); err != nil && os.IsNotExist(err) {
+		err := os.Mkdir(testTranslationsDir, os.ModePerm)
+		require.Nil(e.T(), err)
+		data := []byte("message: Test message\nmessage_template: Test message with {{.data}}")
+		err = ioutil.WriteFile(testLangFile, data, os.ModePerm)
+		require.Nil(e.T(), err)
+	}
+
+	e.engine.Config = Config{
+		Version:  "1",
+		LogLevel: 5,
+		Database: DatabaseConfig{
+			Connection:         db,
+			Logging:            true,
+			TablePrefix:        "",
+			MaxOpenConnections: 10,
+			MaxIdleConnections: 10,
+			ConnectionLifetime: 60,
+		},
+		SentryDSN: "sentry dsn",
+		HTTPServer: HTTPServerConfig{
+			Host:   "0.0.0.0",
+			Listen: ":3001",
+		},
+		Debug:          true,
+		UpdateInterval: 30,
+		ConfigAWS:      ConfigAWS{},
+		TransportInfo: Info{
+			Name:     "test",
+			Code:     "test",
+			LogoPath: "/test.svg",
+		},
+	}
+}
+
+func (e *EngineTest) Test_Prepare_Twice() {
+	defer func() {
+		r := recover()
+		require.NotNil(e.T(), r)
+		assert.Equal(e.T(), "engine already initialized", r.(string))
+	}()
+
+	engine := New()
+	engine.prepared = true
+	engine.Prepare()
+}
+
+func (e *EngineTest) Test_Prepare_NoConfig() {
+	defer func() {
+		r := recover()
+		require.NotNil(e.T(), r)
+		assert.Equal(e.T(), "engine.Config must be loaded before initializing", r.(string))
+	}()
+
+	engine := New()
+	engine.prepared = false
+	engine.Config = nil
+	engine.Prepare()
+}
+
+func (e *EngineTest) Test_Prepare() {
+	defer func() {
+		require.Nil(e.T(), recover())
+	}()
+
+	e.engine.TranslationsPath = testTranslationsDir
+	e.engine.Prepare()
+	assert.True(e.T(), e.engine.prepared)
+}
+
+func (e *EngineTest) Test_initGin_Release() {
+	engine := New()
+	engine.Config = Config{Debug: false}
+	engine.initGin()
+	assert.NotNil(e.T(), engine.ginEngine)
+}
+
+func (e *EngineTest) Test_TemplateFuncMap() {
+	assert.NotNil(e.T(), e.engine.TemplateFuncMap(template.FuncMap{
+		"test": func() string {
+			return "test"
+		},
+	}))
+}
+
+func (e *EngineTest) Test_CreateRenderer() {
+	e.engine.CreateRenderer(func(r *Renderer) {
+		assert.NotNil(e.T(), r)
+	}, template.FuncMap{})
+}
+
+func (e *EngineTest) Test_Router_Fail() {
+	defer func() {
+		r := recover()
+		require.NotNil(e.T(), r)
+		assert.Equal(e.T(), "prepare engine first", r.(string))
+	}()
+
+	engine := New()
+	engine.Router()
+}
+
+func (e *EngineTest) Test_Router() {
+	e.engine.TranslationsPath = testTranslationsDir
+	e.engine.Prepare()
+	assert.NotNil(e.T(), e.engine.Router())
+}
+
+func (e *EngineTest) Test_ConfigureRouter() {
+	e.engine.TranslationsPath = testTranslationsDir
+	e.engine.Prepare()
+	e.engine.ConfigureRouter(func(engine *gin.Engine) {
+		assert.NotNil(e.T(), engine)
+	})
+}
+
+func (e *EngineTest) Test_Run_Fail() {
+	defer func() {
+		assert.NotNil(e.T(), recover())
+	}()
+
+	_ = New().Run()
+}
+
+func TestEngine_Suite(t *testing.T) {
+	suite.Run(t, new(EngineTest))
+}
--- a/core/error_test.go
+++ b/core/error_test.go
@ -0,0 +1,29 @@
+package core
+
+import (
+	"net/http"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestError_GetErrorResponse(t *testing.T) {
+	code, resp := GetErrorResponse(http.StatusBadRequest, "error string")
+
+	assert.Equal(t, http.StatusBadRequest, code)
+	assert.Equal(t, "error string", resp.(ErrorResponse).Error)
+}
+
+func TestError_BadRequest(t *testing.T) {
+	code, resp := BadRequest("error string")
+
+	assert.Equal(t, http.StatusBadRequest, code)
+	assert.Equal(t, "error string", resp.(ErrorResponse).Error)
+}
+
+func TestError_InternalServerError(t *testing.T) {
+	code, resp := InternalServerError("error string")
+
+	assert.Equal(t, http.StatusInternalServerError, code)
+	assert.Equal(t, "error string", resp.(ErrorResponse).Error)
+}
--- a/core/localizer.go
+++ b/core/localizer.go
@ -6,6 +6,8 @@ import (
 	"path"

 	"github.com/gin-gonic/gin"
+	"github.com/gobuffalo/packd"
+	"github.com/gobuffalo/packr/v2"
 	"github.com/nicksnyder/go-i18n/v2/i18n"
 	"golang.org/x/text/language"
 	"gopkg.in/yaml.v2"
@ -14,6 +16,7 @@ import (
 // Localizer struct
 type Localizer struct {
 	i18n             *i18n.Localizer
+	TranslationsBox  *packr.Box
 	LocaleBundle     *i18n.Bundle
 	LocaleMatcher    language.Matcher
 	LanguageTag      language.Tag
@ -86,18 +89,65 @@ func (l *Localizer) getLocaleBundle() *i18n.Bundle {
 	return l.LocaleBundle
 }

-// LoadTranslations will load all translation files from translations directory
+// LoadTranslations will load all translation files from translations directory or from embedded box
 func (l *Localizer) LoadTranslations() {
 	l.getLocaleBundle().RegisterUnmarshalFunc("yml", yaml.Unmarshal)
+
+	switch {
+	case l.TranslationsPath != "":
+		if err := l.loadFromDirectory(); err != nil {
+			panic(err.Error())
+		}
+	case l.TranslationsBox != nil:
+		if err := l.loadFromFS(); err != nil {
+			panic(err.Error())
+		}
+	default:
+		panic("TranslationsPath or TranslationsBox should be specified")
+	}
+}
+
+// LoadTranslations will load all translation files from translations directory
+func (l *Localizer) loadFromDirectory() error {
 	files, err := ioutil.ReadDir(l.TranslationsPath)
 	if err != nil {
-		panic(err)
+		return err
 	}
+
 	for _, f := range files {
 		if !f.IsDir() {
 			l.getLocaleBundle().MustLoadMessageFile(path.Join(l.TranslationsPath, f.Name()))
 		}
 	}
+
+	return nil
+}
+
+// LoadTranslations will load all translation files from embedded box
+func (l *Localizer) loadFromFS() error {
+	err := l.TranslationsBox.Walk(func(s string, file packd.File) error {
+		if fileInfo, err := file.FileInfo(); err == nil {
+			if !fileInfo.IsDir() {
+				if data, err := ioutil.ReadAll(file); err == nil {
+					if _, err := l.getLocaleBundle().ParseMessageFileBytes(data, fileInfo.Name()); err != nil {
+						return err
+					}
+				} else {
+					return err
+				}
+			}
+		} else {
+			return err
+		}
+
+		return nil
+	})
+
+	if err != nil {
+		return err
+	} else {
+		return nil
+	}
 }

 // SetLocale will change language for current localizer
--- a/core/localizer_test.go
+++ b/core/localizer_test.go
@ -0,0 +1,101 @@
+package core
+
+import (
+	"io/ioutil"
+	"net/http"
+	"os"
+	"path"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+	"github.com/stretchr/testify/suite"
+	"golang.org/x/text/language"
+)
+
+var (
+	testTranslationsDir = path.Join(os.TempDir(), "translations_test_dir")
+	testLangFile        = path.Join(testTranslationsDir, "translate.en.yml")
+)
+
+type LocalizerTest struct {
+	suite.Suite
+	localizer *Localizer
+}
+
+func (l *LocalizerTest) SetupTest() {
+	if _, err := os.Stat(testTranslationsDir); err != nil && os.IsNotExist(err) {
+		err := os.Mkdir(testTranslationsDir, os.ModePerm)
+		require.Nil(l.T(), err)
+		data := []byte("message: Test message\nmessage_template: Test message with {{.data}}")
+		err = ioutil.WriteFile(testLangFile, data, os.ModePerm)
+		require.Nil(l.T(), err)
+	}
+
+	l.localizer = NewLocalizer(language.English, DefaultLocalizerBundle(), DefaultLocalizerMatcher(), testTranslationsDir)
+}
+
+func (l *LocalizerTest) Test_SetLocale() {
+	defer func() {
+		require.Nil(l.T(), recover())
+	}()
+
+	l.localizer.SetLocale("en")
+}
+
+func (l *LocalizerTest) Test_LocalizationMiddleware() {
+	assert.NotNil(l.T(), l.localizer.LocalizationMiddleware())
+}
+
+func (l *LocalizerTest) Test_LocalizationFuncMap() {
+	functions := l.localizer.LocalizationFuncMap()
+	_, ok := functions["trans"]
+	assert.True(l.T(), ok)
+}
+
+func (l *LocalizerTest) Test_GetLocalizedMessage() {
+	defer func() {
+		require.Nil(l.T(), recover())
+	}()
+
+	message := l.localizer.GetLocalizedMessage("message")
+	assert.Equal(l.T(), "Test message", message)
+}
+
+func (l *LocalizerTest) Test_GetLocalizedTemplateMessage() {
+	defer func() {
+		require.Nil(l.T(), recover())
+	}()
+
+	message := l.localizer.GetLocalizedTemplateMessage("message_template", map[string]interface{}{"data": "template"})
+	assert.Equal(l.T(), "Test message with template", message)
+}
+
+func (l *LocalizerTest) Test_BadRequestLocalized() {
+	status, resp := l.localizer.BadRequestLocalized("message")
+
+	assert.Equal(l.T(), http.StatusBadRequest, status)
+	assert.Equal(l.T(), "Test message", resp.(ErrorResponse).Error)
+}
+
+func (l *LocalizerTest) TearDownTest() {
+	err := os.RemoveAll(testTranslationsDir)
+	require.Nil(l.T(), err)
+}
+
+func TestLocalizer_Suite(t *testing.T) {
+	suite.Run(t, new(LocalizerTest))
+}
+
+func TestLocalizer_NoDirectory(t *testing.T) {
+	defer func() {
+		assert.NotNil(t, recover())
+	}()
+
+	_ = NewLocalizer(
+		language.English,
+		DefaultLocalizerBundle(),
+		DefaultLocalizerMatcher(),
+		path.Join(os.TempDir(), "this directory should not exist"),
+	)
+}
--- a/core/logger_test.go
+++ b/core/logger_test.go
@ -0,0 +1,21 @@
+package core
+
+import (
+	"testing"
+
+	"github.com/op/go-logging"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestLogger_NewLogger(t *testing.T) {
+	logger := NewLogger("code", logging.DEBUG, DefaultLogFormatter())
+
+	assert.NotNil(t, logger)
+}
+
+func TestLogger_DefaultLogFormatter(t *testing.T) {
+	formatter := DefaultLogFormatter()
+
+	assert.NotNil(t, formatter)
+	assert.IsType(t, logging.MustStringFormatter(`%{message}`), formatter)
+}
--- a/core/migrate.go
+++ b/core/migrate.go
@ -0,0 +1,274 @@
+package core
+
+import (
+	"fmt"
+	"sort"
+
+	"github.com/jinzhu/gorm"
+	"github.com/pkg/errors"
+	"gopkg.in/gormigrate.v1"
+)
+
+// migrations default GORMigrate tool
+var migrations *Migrate
+
+// Migrate tool, decorates gormigrate.Migration in order to provide better interface & versioning
+type Migrate struct {
+	db         *gorm.DB
+	first      *gormigrate.Migration
+	versions   []string
+	migrations map[string]*gormigrate.Migration
+	GORMigrate *gormigrate.Gormigrate
+	prepared   bool
+}
+
+// MigrationInfo with migration info
+type MigrationInfo struct {
+	ID string `gorm:"column:id; type:varchar(255)"`
+}
+
+// TableName for MigrationInfo
+func (MigrationInfo) TableName() string {
+	return "migrations"
+}
+
+// Migrations returns default migrate
+func Migrations() *Migrate {
+	if migrations == nil {
+		migrations = &Migrate{
+			db:         nil,
+			prepared:   false,
+			migrations: map[string]*gormigrate.Migration{},
+		}
+	}
+
+	return migrations
+}
+
+// Add GORMigrate to migrate
+func (m *Migrate) Add(migration *gormigrate.Migration) {
+	if migration == nil {
+		return
+	}
+
+	m.migrations[migration.ID] = migration
+}
+
+// SetORM to migrate
+func (m *Migrate) SetDB(db *gorm.DB) *Migrate {
+	m.db = db
+	return m
+}
+
+// Migrate all, including schema initialization
+func (m *Migrate) Migrate() error {
+	if err := m.prepareMigrations(); err != nil {
+		return err
+	}
+
+	if len(m.migrations) > 0 {
+		return m.GORMigrate.Migrate()
+	}
+
+	return nil
+}
+
+// Rollback all migrations
+func (m *Migrate) Rollback() error {
+	if err := m.prepareMigrations(); err != nil {
+		return err
+	}
+
+	if m.first == nil {
+		return errors.New("abnormal termination: first migration is nil")
+	}
+
+	if err := m.GORMigrate.RollbackTo(m.first.ID); err == nil {
+		if err := m.GORMigrate.RollbackMigration(m.first); err == nil {
+			return nil
+		} else {
+			return err
+		}
+	} else {
+		return err
+	}
+}
+
+// MigrateTo specified version
+func (m *Migrate) MigrateTo(version string) error {
+	if err := m.prepareMigrations(); err != nil {
+		return err
+	}
+
+	current := m.Current()
+	switch {
+	case current > version:
+		return m.GORMigrate.RollbackTo(version)
+	case current < version:
+		return m.GORMigrate.MigrateTo(version)
+	default:
+		return nil
+	}
+}
+
+// MigrateNextTo migrate to next version from specified version
+func (m *Migrate) MigrateNextTo(version string) error {
+	if err := m.prepareMigrations(); err != nil {
+		return err
+	}
+
+	if next, err := m.NextFrom(version); err == nil {
+		current := m.Current()
+		switch {
+		case current < next:
+			return m.GORMigrate.MigrateTo(next)
+		case current > next:
+			return errors.New(fmt.Sprintf("current migration version '%s' is higher than fetched version '%s'", current, next))
+		default:
+			return nil
+		}
+	} else {
+		return nil
+	}
+}
+
+// MigratePreviousTo migrate to previous version from specified version
+func (m *Migrate) MigratePreviousTo(version string) error {
+	if err := m.prepareMigrations(); err != nil {
+		return err
+	}
+
+	if prev, err := m.PreviousFrom(version); err == nil {
+		current := m.Current()
+		switch {
+		case current > prev:
+			return m.GORMigrate.RollbackTo(prev)
+		case current < prev:
+			return errors.New(fmt.Sprintf("current migration version '%s' is lower than fetched version '%s'", current, prev))
+		case prev == "0":
+			return m.GORMigrate.RollbackMigration(m.first)
+		default:
+			return nil
+		}
+	} else {
+		return nil
+	}
+}
+
+// RollbackTo specified version
+func (m *Migrate) RollbackTo(version string) error {
+	if err := m.prepareMigrations(); err != nil {
+		return err
+	}
+
+	return m.GORMigrate.RollbackTo(version)
+}
+
+// Current migration version
+func (m *Migrate) Current() string {
+	var migrationInfo MigrationInfo
+
+	if m.db == nil {
+		fmt.Println("warning => db is nil - cannot return migration version")
+		return "0"
+	}
+
+	if !m.db.HasTable(MigrationInfo{}) {
+		if err := m.db.CreateTable(MigrationInfo{}).Error; err == nil {
+			fmt.Println("info => created migrations table")
+		} else {
+			panic(err.Error())
+		}
+
+		return "0"
+	}
+
+	if err := m.db.Last(&migrationInfo).Error; err == nil {
+		return migrationInfo.ID
+	} else {
+		fmt.Printf("warning => cannot fetch migration version: %s\n", err.Error())
+		return "0"
+	}
+}
+
+// NextFrom returns next version from passed version
+func (m *Migrate) NextFrom(version string) (string, error) {
+	for key, ver := range m.versions {
+		if ver == version {
+			if key < (len(m.versions) - 1) {
+				return m.versions[key+1], nil
+			} else {
+				return "", errors.New("this is last migration")
+			}
+		}
+	}
+
+	return "", errors.New("cannot find specified migration")
+}
+
+// PreviousFrom returns previous version from passed version
+func (m *Migrate) PreviousFrom(version string) (string, error) {
+	for key, ver := range m.versions {
+		if ver == version {
+			if key > 0 {
+				return m.versions[key-1], nil
+			} else {
+				return "0", nil
+			}
+		}
+	}
+
+	return "", errors.New("cannot find specified migration")
+}
+
+// Close db connection
+func (m *Migrate) Close() error {
+	return m.db.Close()
+}
+
+// prepareMigrations prepare migrate
+func (m *Migrate) prepareMigrations() error {
+	var (
+		keys       []string
+		migrations []*gormigrate.Migration
+	)
+
+	if m.db == nil {
+		return errors.New("db must not be nil")
+	}
+
+	if m.prepared {
+		return nil
+	}
+
+	for key := range m.migrations {
+		keys = append(keys, key)
+	}
+
+	sort.Strings(keys)
+	m.versions = keys
+
+	if len(keys) > 0 {
+		if i, ok := m.migrations[keys[0]]; ok {
+			m.first = i
+		}
+	}
+
+	for _, key := range keys {
+		if i, ok := m.migrations[key]; ok {
+			migrations = append(migrations, i)
+		}
+	}
+
+	options := &gormigrate.Options{
+		TableName:                 gormigrate.DefaultOptions.TableName,
+		IDColumnName:              gormigrate.DefaultOptions.IDColumnName,
+		IDColumnSize:              gormigrate.DefaultOptions.IDColumnSize,
+		UseTransaction:            true,
+		ValidateUnknownMigrations: true,
+	}
+
+	m.GORMigrate = gormigrate.New(m.db, options, migrations)
+	m.prepared = true
+	return nil
+}
--- a/core/migrate_test.go
+++ b/core/migrate_test.go
@ -0,0 +1,371 @@
+package core
+
+import (
+	"database/sql"
+	"regexp"
+	"testing"
+
+	"github.com/DATA-DOG/go-sqlmock"
+	"github.com/jinzhu/gorm"
+	_ "github.com/jinzhu/gorm/dialects/postgres"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+	"github.com/stretchr/testify/suite"
+	"gopkg.in/gormigrate.v1"
+)
+
+type TestModel struct {
+	Name string `gorm:"column:name; type:varchar(70)"`
+}
+
+func (TestModel) TableName() string {
+	return "test_model"
+}
+
+type MigrateTest struct {
+	suite.Suite
+	DB      *gorm.DB
+	Migrate *Migrate
+	mock    sqlmock.Sqlmock
+}
+
+func (m *MigrateTest) SetupSuite() {
+	require.NotEmpty(m.T(), (MigrationInfo{}).TableName())
+	m.RefreshMigrate()
+}
+
+func (m *MigrateTest) RefreshMigrate() {
+	var (
+		db  *sql.DB
+		err error
+	)
+
+	db, m.mock, err = sqlmock.New()
+	require.NoError(m.T(), err)
+
+	m.DB, err = gorm.Open("postgres", db)
+	require.NoError(m.T(), err)
+
+	m.DB.LogMode(true)
+	m.Migrate = &Migrate{
+		db:         m.DB,
+		prepared:   false,
+		migrations: map[string]*gormigrate.Migration{},
+	}
+}
+
+func (m *MigrateTest) Migration_TestModelFirst() *gormigrate.Migration {
+	return &gormigrate.Migration{
+		ID: "1",
+		Migrate: func(db *gorm.DB) error {
+			return db.AutoMigrate(TestModel{}).Error
+		},
+		Rollback: func(db *gorm.DB) error {
+			return db.DropTable(TestModel{}).Error
+		},
+	}
+}
+
+func (m *MigrateTest) Migration_TestModelSecond() *gormigrate.Migration {
+	return &gormigrate.Migration{
+		ID: "2",
+		Migrate: func(db *gorm.DB) error {
+			return db.Model(TestModel{}).ModifyColumn("name", "varchar(100)").Error
+		},
+		Rollback: func(db *gorm.DB) error {
+			return db.Model(TestModel{}).ModifyColumn("name", "varchar(70)").Error
+		},
+	}
+}
+
+func (m *MigrateTest) Test_Add() {
+	m.RefreshMigrate()
+	m.Migrate.Add(nil)
+	m.Migrate.Add(m.Migration_TestModelFirst())
+
+	assert.Equal(m.T(), 1, len(m.Migrate.migrations))
+	i, ok := m.Migrate.migrations["1"]
+	require.True(m.T(), ok)
+	assert.Equal(m.T(), "1", i.ID)
+	assert.NoError(m.T(), m.mock.ExpectationsWereMet())
+}
+
+func (m *MigrateTest) Test_prepareMigrations_NilDB() {
+	m.RefreshMigrate()
+	m.Migrate.db = nil
+	err := m.Migrate.prepareMigrations()
+
+	require.Error(m.T(), err)
+	assert.Equal(m.T(), "db must not be nil", err.Error())
+	assert.NoError(m.T(), m.mock.ExpectationsWereMet())
+}
+
+func (m *MigrateTest) Test_prepareMigrations_AlreadyPrepared() {
+	m.RefreshMigrate()
+	m.Migrate.prepared = true
+	err := m.Migrate.prepareMigrations()
+
+	require.NoError(m.T(), err)
+	assert.Nil(m.T(), m.Migrate.GORMigrate)
+	assert.NoError(m.T(), m.mock.ExpectationsWereMet())
+}
+
+func (m *MigrateTest) Test_prepareMigrations_OK() {
+	m.RefreshMigrate()
+	m.Migrate.Add(m.Migration_TestModelFirst())
+	err := m.Migrate.prepareMigrations()
+
+	require.NoError(m.T(), err)
+	assert.True(m.T(), m.Migrate.prepared)
+	assert.NotNil(m.T(), m.Migrate.GORMigrate)
+	assert.NoError(m.T(), m.mock.ExpectationsWereMet())
+}
+
+func (m *MigrateTest) Test_Migrate_Fail_NilDB() {
+	m.RefreshMigrate()
+	m.Migrate.SetDB(nil)
+	m.Migrate.Add(m.Migration_TestModelFirst())
+
+	err := m.Migrate.Migrate()
+
+	assert.Error(m.T(), err)
+	assert.NoError(m.T(), m.mock.ExpectationsWereMet())
+}
+
+func (m *MigrateTest) Test_Migrate_Success_NoMigrations() {
+	m.RefreshMigrate()
+	m.Migrate.Add(m.Migration_TestModelFirst())
+
+	m.mock.ExpectBegin()
+	m.mock.
+		ExpectExec(regexp.QuoteMeta(`CREATE TABLE migrations (id VARCHAR(255) PRIMARY KEY)`)).
+		WillReturnResult(sqlmock.NewResult(1, 1))
+	m.mock.
+		ExpectQuery(regexp.QuoteMeta(`SELECT id FROM migrations`)).
+		WillReturnRows(sqlmock.NewRows([]string{"1"}))
+	m.mock.
+		ExpectQuery(regexp.QuoteMeta(`SELECT count(*) FROM "migrations"  WHERE (id = $1)`)).
+		WithArgs("1").
+		WillReturnRows(sqlmock.NewRows([]string{"count"}).AddRow(1))
+	m.mock.ExpectCommit()
+
+	err := m.Migrate.Migrate()
+
+	assert.NoError(m.T(), err)
+	assert.NoError(m.T(), m.mock.ExpectationsWereMet())
+}
+
+func (m *MigrateTest) Test_Migrate_Success() {
+	m.RefreshMigrate()
+	m.Migrate.Add(m.Migration_TestModelFirst())
+
+	m.mock.ExpectBegin()
+	m.mock.
+		ExpectExec(regexp.QuoteMeta(`CREATE TABLE migrations (id VARCHAR(255) PRIMARY KEY)`)).
+		WillReturnResult(sqlmock.NewResult(1, 1))
+	m.mock.
+		ExpectQuery(regexp.QuoteMeta(`SELECT id FROM migrations`)).
+		WillReturnRows(sqlmock.NewRows([]string{"1"}))
+	m.mock.
+		ExpectQuery(regexp.QuoteMeta(`SELECT count(*) FROM "migrations"  WHERE (id = $1)`)).
+		WithArgs("1").
+		WillReturnRows(sqlmock.NewRows([]string{"count"}).AddRow(0))
+	m.mock.
+		ExpectExec(regexp.QuoteMeta(`CREATE TABLE "test_model" ("name" varchar(70) )`)).
+		WillReturnResult(sqlmock.NewResult(1, 1))
+	m.mock.
+		ExpectExec(regexp.QuoteMeta(`INSERT INTO migrations (id) VALUES ($1)`)).
+		WithArgs("1").
+		WillReturnResult(sqlmock.NewResult(1, 1))
+	m.mock.ExpectCommit()
+
+	err := m.Migrate.Migrate()
+
+	assert.NoError(m.T(), err)
+	assert.NoError(m.T(), m.mock.ExpectationsWereMet())
+}
+
+func (m *MigrateTest) Test_Rollback_Fail_NilDB() {
+	m.RefreshMigrate()
+	m.Migrate.SetDB(nil)
+	m.Migrate.Add(m.Migration_TestModelFirst())
+
+	err := m.Migrate.Rollback()
+
+	assert.Error(m.T(), err)
+	assert.NoError(m.T(), m.mock.ExpectationsWereMet())
+}
+
+func (m *MigrateTest) Test_Rollback_Fail_NoMigrations() {
+	m.RefreshMigrate()
+	m.Migrate.first = m.Migration_TestModelFirst()
+
+	err := m.Migrate.Rollback()
+
+	assert.Error(m.T(), err)
+	assert.NoError(m.T(), m.mock.ExpectationsWereMet())
+}
+
+func (m *MigrateTest) Test_Rollback_Fail_NoFirstMigration() {
+	m.RefreshMigrate()
+	m.Migrate.Add(m.Migration_TestModelFirst())
+	m.Migrate.first = nil
+
+	err := m.Migrate.Rollback()
+
+	assert.Error(m.T(), err)
+	assert.NoError(m.T(), m.mock.ExpectationsWereMet())
+}
+
+func (m *MigrateTest) Test_MigrateTo_Fail_NilDB() {
+	m.RefreshMigrate()
+	m.Migrate.SetDB(nil)
+
+	err := m.Migrate.MigrateTo("version")
+
+	assert.Error(m.T(), err)
+	assert.NoError(m.T(), m.mock.ExpectationsWereMet())
+}
+
+func (m *MigrateTest) Test_MigrateTo_DoNothing() {
+	m.RefreshMigrate()
+	m.Migrate.Add(m.Migration_TestModelFirst())
+
+	m.mock.
+		ExpectExec(regexp.QuoteMeta(`CREATE TABLE "migrations" ("id" varchar(255) , PRIMARY KEY ("id"))`)).
+		WillReturnResult(sqlmock.NewResult(1, 1))
+	m.mock.ExpectBegin()
+	m.mock.
+		ExpectExec(regexp.QuoteMeta(`CREATE TABLE migrations (id VARCHAR(255) PRIMARY KEY)`)).
+		WillReturnResult(sqlmock.NewResult(1, 1))
+	m.mock.
+		ExpectQuery(regexp.QuoteMeta(`SELECT id FROM migrations`)).
+		WillReturnRows(sqlmock.NewRows([]string{"1"}))
+	m.mock.
+		ExpectQuery(regexp.QuoteMeta(`SELECT count(*) FROM "migrations"  WHERE (id = $1)`)).
+		WithArgs("1").
+		WillReturnRows(sqlmock.NewRows([]string{"count"}).AddRow(1))
+	m.mock.ExpectCommit()
+
+	err := m.Migrate.MigrateTo(m.Migration_TestModelFirst().ID)
+
+	assert.NoError(m.T(), err)
+	assert.NoError(m.T(), m.mock.ExpectationsWereMet())
+}
+
+func (m *MigrateTest) Test_MigrateTo() {
+	m.RefreshMigrate()
+	m.Migrate.Add(m.Migration_TestModelFirst())
+
+	m.mock.
+		ExpectExec(regexp.QuoteMeta(`CREATE TABLE "migrations" ("id" varchar(255) , PRIMARY KEY ("id"))`)).
+		WillReturnResult(sqlmock.NewResult(1, 1))
+	m.mock.ExpectBegin()
+	m.mock.
+		ExpectExec(regexp.QuoteMeta(`CREATE TABLE migrations (id VARCHAR(255) PRIMARY KEY)`)).
+		WillReturnResult(sqlmock.NewResult(1, 1))
+	m.mock.
+		ExpectQuery(regexp.QuoteMeta(`SELECT id FROM migrations`)).
+		WillReturnRows(sqlmock.NewRows([]string{"1"}))
+	m.mock.
+		ExpectQuery(regexp.QuoteMeta(`SELECT count(*) FROM "migrations"  WHERE (id = $1)`)).
+		WithArgs("1").
+		WillReturnRows(sqlmock.NewRows([]string{"count"}).AddRow(0))
+	m.mock.
+		ExpectExec(regexp.QuoteMeta(`CREATE TABLE "test_model" ("name" varchar(70) )`)).
+		WillReturnResult(sqlmock.NewResult(1, 1))
+	m.mock.
+		ExpectExec(regexp.QuoteMeta(`INSERT INTO migrations (id) VALUES ($1)`)).
+		WithArgs("1").
+		WillReturnResult(sqlmock.NewResult(1, 1))
+	m.mock.ExpectCommit()
+
+	err := m.Migrate.MigrateTo(m.Migration_TestModelFirst().ID)
+
+	assert.NoError(m.T(), err)
+	assert.NoError(m.T(), m.mock.ExpectationsWereMet())
+}
+
+func (m *MigrateTest) Test_RollbackTo() {
+	m.RefreshMigrate()
+	m.Migrate.Add(m.Migration_TestModelFirst())
+	m.Migrate.Add(m.Migration_TestModelSecond())
+
+	m.mock.ExpectBegin()
+	m.mock.ExpectCommit()
+
+	err := m.Migrate.RollbackTo(m.Migration_TestModelSecond().ID)
+
+	assert.NoError(m.T(), err)
+	assert.NoError(m.T(), m.mock.ExpectationsWereMet())
+}
+
+func (m *MigrateTest) Test_MigrateNextTo() {
+	m.RefreshMigrate()
+	m.Migrate.Add(m.Migration_TestModelFirst())
+	m.Migrate.Add(m.Migration_TestModelSecond())
+
+	m.mock.
+		ExpectExec(regexp.QuoteMeta(`CREATE TABLE "migrations" ("id" varchar(255) , PRIMARY KEY ("id"))`)).
+		WillReturnResult(sqlmock.NewResult(1, 1))
+	m.mock.ExpectBegin()
+	m.mock.
+		ExpectExec(regexp.QuoteMeta(`CREATE TABLE migrations (id VARCHAR(255) PRIMARY KEY)`)).
+		WillReturnResult(sqlmock.NewResult(1, 1))
+	m.mock.
+		ExpectQuery(regexp.QuoteMeta(`SELECT id FROM migrations`)).
+		WillReturnRows(sqlmock.NewRows([]string{"1"}))
+	m.mock.
+		ExpectQuery(regexp.QuoteMeta(`SELECT count(*) FROM "migrations"  WHERE (id = $1)`)).
+		WithArgs("1").
+		WillReturnRows(sqlmock.NewRows([]string{"count"}).AddRow(1))
+	m.mock.
+		ExpectQuery(regexp.QuoteMeta(`SELECT count(*) FROM "migrations"  WHERE (id = $1)`)).
+		WithArgs("2").
+		WillReturnRows(sqlmock.NewRows([]string{"count"}).AddRow(0))
+	m.mock.
+		ExpectExec(regexp.QuoteMeta(`ALTER TABLE "test_model" ALTER COLUMN "name" TYPE varchar(100)`)).
+		WillReturnResult(sqlmock.NewResult(1, 1))
+	m.mock.
+		ExpectExec(regexp.QuoteMeta(`INSERT INTO migrations (id) VALUES ($1)`)).
+		WithArgs("2").
+		WillReturnResult(sqlmock.NewResult(1, 1))
+	m.mock.ExpectCommit()
+
+	err := m.Migrate.MigrateNextTo(m.Migration_TestModelFirst().ID)
+
+	assert.NoError(m.T(), err)
+	assert.NoError(m.T(), m.mock.ExpectationsWereMet())
+}
+
+func (m *MigrateTest) Test_MigratePreviousTo() {
+	m.RefreshMigrate()
+	m.Migrate.Add(m.Migration_TestModelFirst())
+	m.Migrate.Add(m.Migration_TestModelSecond())
+
+	m.mock.
+		ExpectExec(regexp.QuoteMeta(`CREATE TABLE "migrations" ("id" varchar(255) , PRIMARY KEY ("id"))`)).
+		WillReturnResult(sqlmock.NewResult(1, 1))
+
+	err := m.Migrate.MigratePreviousTo(m.Migration_TestModelSecond().ID)
+
+	assert.Error(m.T(), err)
+	assert.NoError(m.T(), m.mock.ExpectationsWereMet())
+}
+
+func (m *MigrateTest) Test_Close() {
+	m.RefreshMigrate()
+	m.mock.ExpectClose()
+	err := m.Migrate.Close()
+
+	assert.NoError(m.T(), err)
+	assert.NoError(m.T(), m.mock.ExpectationsWereMet())
+}
+
+func TestMigrate_Migrate(t *testing.T) {
+	assert.NotNil(t, Migrations())
+}
+
+func TestMigrate_Suite(t *testing.T) {
+	suite.Run(t, new(MigrateTest))
+}
--- a/core/models_test.go
+++ b/core/models_test.go
@ -0,0 +1,11 @@
+package core
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestModels_TableName(t *testing.T) {
+	assert.NotEmpty(t, (User{}).TableName())
+}
--- a/core/orm_test.go
+++ b/core/orm_test.go
@ -0,0 +1,73 @@
+package core
+
+import (
+	"database/sql"
+	"testing"
+
+	"github.com/DATA-DOG/go-sqlmock"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestORM_NewORM(t *testing.T) {
+	var (
+		db  *sql.DB
+		err error
+	)
+
+	defer func() {
+		require.Nil(t, recover())
+	}()
+
+	db, _, err = sqlmock.New()
+	require.NoError(t, err)
+
+	config := DatabaseConfig{
+		Connection:         db,
+		Logging:            true,
+		TablePrefix:        "",
+		MaxOpenConnections: 10,
+		MaxIdleConnections: 10,
+		ConnectionLifetime: 100,
+	}
+
+	_ = NewORM(config)
+}
+
+func TestORM_createDB_Fail(t *testing.T) {
+	defer func() {
+		assert.NotNil(t, recover())
+	}()
+
+	NewORM(DatabaseConfig{Connection: nil})
+}
+
+func TestORM_CloseDB(t *testing.T) {
+	var (
+		db     *sql.DB
+		dbMock sqlmock.Sqlmock
+		err    error
+	)
+
+	defer func() {
+		require.Nil(t, recover())
+	}()
+
+	db, dbMock, err = sqlmock.New()
+	require.NoError(t, err)
+
+	config := DatabaseConfig{
+		Connection:         db,
+		Logging:            true,
+		TablePrefix:        "",
+		MaxOpenConnections: 10,
+		MaxIdleConnections: 10,
+		ConnectionLifetime: 100,
+	}
+
+	dbMock.ExpectClose()
+	orm := NewORM(config)
+	orm.CloseDB()
+
+	assert.NoError(t, dbMock.ExpectationsWereMet())
+}
--- a/core/sentry.go
+++ b/core/sentry.go
@ -272,7 +272,7 @@ func (t *SentryTaggedStruct) GetProperty(v interface{}, property string) (name s
 	}

 	if val.Kind() != reflect.Struct {
-		err = fmt.Errorf("passed value must be struct, %s provided", val.String())
+		err = fmt.Errorf("passed value must be struct, %s provided", val.Type().String())
 		return
 	}

@ -287,7 +287,7 @@ func (t *SentryTaggedStruct) GetProperty(v interface{}, property string) (name s
 		err = fmt.Errorf("cannot find property `%s`", property)
 	}

-	field := val.FieldByName(property)
+	field := reflect.Indirect(val.FieldByName(property))
 	if !field.IsValid() {
 		err = fmt.Errorf("invalid property, got %s", field.String())
 		return
--- a/core/sentry_test.go
+++ b/core/sentry_test.go
@ -0,0 +1,197 @@
+package core
+
+import (
+	"errors"
+	"testing"
+
+	"github.com/getsentry/raven-go"
+	pkgErrors "github.com/pkg/errors"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+	"github.com/stretchr/testify/suite"
+)
+
+type SampleStruct struct {
+	ID      int
+	Pointer *int
+	Field   string
+}
+
+type SentryTest struct {
+	suite.Suite
+	sentry     *Sentry
+	structTags *SentryTaggedStruct
+	scalarTags *SentryTaggedScalar
+}
+
+func (s *SentryTest) SetupTest() {
+	s.structTags = NewTaggedStruct(SampleStruct{}, "struct", map[string]string{"fake": "prop"})
+	s.scalarTags = NewTaggedScalar("", "scalar", "Scalar")
+	require.Equal(s.T(), "struct", s.structTags.GetContextKey())
+	require.Equal(s.T(), "scalar", s.scalarTags.GetContextKey())
+	require.Equal(s.T(), "", s.structTags.GetName())
+	require.Equal(s.T(), "Scalar", s.scalarTags.GetName())
+	s.structTags.Tags = map[string]string{}
+	s.sentry = NewSentry("dsn", "unknown_error", SentryTaggedTypes{}, nil, nil)
+}
+
+func (s *SentryTest) TestStruct_AddTag() {
+	s.structTags.AddTag("test field", "Field")
+	require.NotEmpty(s.T(), s.structTags.GetTags())
+
+	tags, err := s.structTags.BuildTags(SampleStruct{Field: "value"})
+	require.NoError(s.T(), err)
+	require.NotEmpty(s.T(), tags)
+
+	i, ok := tags["test field"]
+	require.True(s.T(), ok)
+	assert.Equal(s.T(), "value", i)
+}
+
+func (s *SentryTest) TestStruct_GetProperty() {
+	s.structTags.AddTag("test field", "Field")
+	name, value, err := s.structTags.GetProperty(SampleStruct{Field: "test"}, "Field")
+	require.NoError(s.T(), err)
+	assert.Equal(s.T(), "test field", name)
+	assert.Equal(s.T(), "test", value)
+}
+
+func (s *SentryTest) TestStruct_GetProperty_InvalidStruct() {
+	_, _, err := s.structTags.GetProperty(nil, "Field")
+	require.Error(s.T(), err)
+	assert.Equal(s.T(), "invalid value provided", err.Error())
+}
+
+func (s *SentryTest) TestStruct_GetProperty_GotScalar() {
+	_, _, err := s.structTags.GetProperty("", "Field")
+	require.Error(s.T(), err)
+	assert.Equal(s.T(), "passed value must be struct, string provided", err.Error())
+}
+
+func (s *SentryTest) TestStruct_GetProperty_InvalidType() {
+	_, _, err := s.structTags.GetProperty(Sentry{}, "Field")
+	require.Error(s.T(), err)
+	assert.Equal(s.T(), "passed value should be of type `core.SampleStruct`, got `core.Sentry` instead", err.Error())
+}
+
+func (s *SentryTest) TestStruct_GetProperty_CannotFindProperty() {
+	_, _, err := s.structTags.GetProperty(SampleStruct{ID: 1}, "ID")
+	require.Error(s.T(), err)
+	assert.Equal(s.T(), "cannot find property `ID`", err.Error())
+}
+
+func (s *SentryTest) TestStruct_GetProperty_InvalidProperty() {
+	s.structTags.AddTag("test invalid", "Pointer")
+	_, _, err := s.structTags.GetProperty(SampleStruct{Pointer: nil}, "Pointer")
+	require.Error(s.T(), err)
+	assert.Equal(s.T(), "invalid property, got <invalid Value>", err.Error())
+}
+
+func (s *SentryTest) TestStruct_BuildTags_Fail() {
+	s.structTags.Tags = map[string]string{}
+	s.structTags.AddTag("test", "Field")
+	_, err := s.structTags.BuildTags(false)
+	assert.Error(s.T(), err)
+}
+
+func (s *SentryTest) TestStruct_BuildTags() {
+	s.structTags.Tags = map[string]string{}
+	s.structTags.AddTag("test", "Field")
+	tags, err := s.structTags.BuildTags(SampleStruct{Field: "value"})
+
+	require.NoError(s.T(), err)
+	require.NotEmpty(s.T(), tags)
+	i, ok := tags["test"]
+	require.True(s.T(), ok)
+	assert.Equal(s.T(), "value", i)
+}
+
+func (s *SentryTest) TestScalar_Get_Nil() {
+	_, err := s.scalarTags.Get(nil)
+	require.Error(s.T(), err)
+	assert.Equal(s.T(), "invalid value provided", err.Error())
+}
+
+func (s *SentryTest) TestScalar_Get_Struct() {
+	_, err := s.scalarTags.Get(struct{}{})
+	require.Error(s.T(), err)
+	assert.Equal(s.T(), "passed value must not be struct", err.Error())
+}
+
+func (s *SentryTest) TestScalar_Get_InvalidType() {
+	_, err := s.scalarTags.Get(false)
+	require.Error(s.T(), err)
+	assert.Equal(s.T(), "passed value should be of type `string`, got `bool` instead", err.Error())
+}
+
+func (s *SentryTest) TestScalar_Get() {
+	val, err := s.scalarTags.Get("test")
+	require.NoError(s.T(), err)
+	assert.Equal(s.T(), "test", val)
+}
+
+func (s *SentryTest) TestScalar_GetTags() {
+	assert.Empty(s.T(), s.scalarTags.GetTags())
+}
+
+func (s *SentryTest) TestScalar_BuildTags_Fail() {
+	_, err := s.scalarTags.BuildTags(false)
+	assert.Error(s.T(), err)
+}
+
+func (s *SentryTest) TestScalar_BuildTags() {
+	tags, err := s.scalarTags.BuildTags("test")
+
+	require.NoError(s.T(), err)
+	require.NotEmpty(s.T(), tags)
+	i, ok := tags[s.scalarTags.GetName()]
+	require.True(s.T(), ok)
+	assert.Equal(s.T(), "test", i)
+}
+
+func (s *SentryTest) TestSentry_ErrorMiddleware() {
+	assert.NotNil(s.T(), s.sentry.ErrorMiddleware())
+}
+
+func (s *SentryTest) TestSentry_PanicLogger() {
+	assert.NotNil(s.T(), s.sentry.PanicLogger())
+}
+
+func (s *SentryTest) TestSentry_ErrorLogger() {
+	assert.NotNil(s.T(), s.sentry.ErrorLogger())
+}
+
+func (s *SentryTest) TestSentry_ErrorResponseHandler() {
+	assert.NotNil(s.T(), s.sentry.ErrorResponseHandler())
+}
+
+func (s *SentryTest) TestSentry_ErrorCaptureHandler() {
+	assert.NotNil(s.T(), s.sentry.ErrorCaptureHandler())
+}
+
+func TestSentry_newRavenStackTrace_Fail(t *testing.T) {
+	defer func() {
+		assert.NotNil(t, recover())
+	}()
+
+	newRavenStackTrace(nil, errors.New("error"), 0)
+}
+
+func TestSentry_newRavenStackTrace(t *testing.T) {
+	st := newRavenStackTrace(&raven.Client{}, errors.New("error"), 0)
+
+	require.NotNil(t, st)
+	assert.NotEmpty(t, st.Frames)
+}
+
+func TestSentry_newRavenStackTrace_ErrorsPkg(t *testing.T) {
+	err := pkgErrors.New("error")
+	st := newRavenStackTrace(&raven.Client{}, err, 0)
+
+	require.NotNil(t, st)
+	assert.NotEmpty(t, st.Frames)
+}
+
+func TestSentry_Suite(t *testing.T) {
+	suite.Run(t, new(SentryTest))
+}
--- a/core/template.go
+++ b/core/template.go
@ -4,11 +4,13 @@ import (
 	"html/template"

 	"github.com/gin-contrib/multitemplate"
+	"github.com/gobuffalo/packr/v2"
 )

 // Renderer wraps multitemplate.Renderer in order to make it easier to use
 type Renderer struct {
 	multitemplate.Renderer
+	TemplatesBox *packr.Box
 	FuncMap template.FuncMap
 }

@ -22,5 +24,22 @@ func NewRenderer(funcMap template.FuncMap) Renderer {

 // Push is an AddFromFilesFuncs wrapper
 func (r *Renderer) Push(name string, files ...string) *template.Template {
-	return r.AddFromFilesFuncs(name, r.FuncMap, files...)
+	if r.TemplatesBox == nil {
+		return r.AddFromFilesFuncs(name, r.FuncMap, files...)
+	} else {
+		return r.addFromBox(name, r.FuncMap, files...)
+	}
+}
+
+// addFromBox adds embedded template
+func (r *Renderer) addFromBox(name string, funcMap template.FuncMap, files ...string) *template.Template {
+	var filesData []string
+
+	for _, file := range files {
+		if data, err := r.TemplatesBox.FindString(file); err == nil {
+			filesData = append(filesData, data)
+		}
+	}
+
+	return r.AddFromStringsFuncs(name, funcMap, filesData...)
 }
--- a/core/template_test.go
+++ b/core/template_test.go
@ -0,0 +1,56 @@
+package core
+
+import (
+	"fmt"
+	"html/template"
+	"io/ioutil"
+	"os"
+	"path"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+	"github.com/stretchr/testify/suite"
+)
+
+var (
+	testTemplatesDir  = path.Join(os.TempDir(), "templates_test_dir")
+	testTemplatesFile = path.Join(testTemplatesDir, "tpl%d.html")
+)
+
+type TemplateTest struct {
+	suite.Suite
+	renderer Renderer
+}
+
+func (t *TemplateTest) SetupTest() {
+	if _, err := os.Stat(testTemplatesDir); err != nil && os.IsNotExist(err) {
+		err := os.Mkdir(testTemplatesDir, os.ModePerm)
+		require.Nil(t.T(), err)
+		data1 := []byte(`data {{template "body" .}}`)
+		data2 := []byte(`{{define "body"}}test {{"test" | trans}}{{end}}`)
+		err1 := ioutil.WriteFile(fmt.Sprintf(testTemplatesFile, 1), data1, os.ModePerm)
+		err2 := ioutil.WriteFile(fmt.Sprintf(testTemplatesFile, 2), data2, os.ModePerm)
+		require.Nil(t.T(), err1)
+		require.Nil(t.T(), err2)
+	}
+
+	t.renderer = NewRenderer(template.FuncMap{
+		"trans": func(data string) string {
+			if data == "test" {
+				return "ok"
+			}
+
+			return "fail"
+		},
+	})
+}
+
+func (t *TemplateTest) Test_Push() {
+	tpl := t.renderer.Push("index", fmt.Sprintf(testTemplatesFile, 1), fmt.Sprintf(testTemplatesFile, 2))
+	assert.Equal(t.T(), 3, len(tpl.Templates()))
+}
+
+func TestTemplate_Suite(t *testing.T) {
+	suite.Run(t, new(TemplateTest))
+}
--- a/core/utils.go
+++ b/core/utils.go
@ -25,18 +25,16 @@ import (
 type Utils struct {
 	IsDebug      bool
 	ConfigAWS    ConfigAWS
-	Localizer    *Localizer
 	Logger       *logging.Logger
 	TokenCounter uint32
 	slashRegex   *regexp.Regexp
 }

 // NewUtils will create new Utils instance
-func NewUtils(awsConfig ConfigAWS, localizer *Localizer, logger *logging.Logger, debug bool) *Utils {
+func NewUtils(awsConfig ConfigAWS, logger *logging.Logger, debug bool) *Utils {
 	return &Utils{
 		IsDebug:      debug,
 		ConfigAWS:    awsConfig,
-		Localizer:    localizer,
 		Logger:       logger,
 		TokenCounter: 0,
 		slashRegex:   slashRegex,
@ -141,6 +139,11 @@ func (u *Utils) UploadUserAvatar(url string) (picURLs3 string, err error) {
 	return
 }

+// RemoveTrailingSlash will remove slash at the end of any string
+func (u *Utils) RemoveTrailingSlash(crmURL string) string {
+	return u.slashRegex.ReplaceAllString(crmURL, ``)
+}
+
 // GetMGItemData will upload file to MG by URL and return information about attachable item
 func GetMGItemData(client *v1.MgClient, url string, caption string) (v1.Item, int, error) {
 	item := v1.Item{}
@ -160,11 +163,6 @@ func GetMGItemData(client *v1.MgClient, url string, caption string) (v1.Item, in
 	return item, st, err
 }

-// RemoveTrailingSlash will remove slash at the end of any string
-func (u *Utils) RemoveTrailingSlash(crmURL string) string {
-	return u.slashRegex.ReplaceAllString(crmURL, ``)
-}
-
 // GetEntitySHA1 will serialize any value to JSON and return SHA1 hash of this JSON
 func GetEntitySHA1(v interface{}) (hash string, err error) {
 	res, _ := json.Marshal(v)
--- a/core/utils_test.go
+++ b/core/utils_test.go
@ -0,0 +1,252 @@
+package core
+
+import (
+	"encoding/json"
+	"net/http"
+	"testing"
+	"time"
+
+	"github.com/h2non/gock"
+	"github.com/op/go-logging"
+	v5 "github.com/retailcrm/api-client-go/v5"
+	v1 "github.com/retailcrm/mg-transport-api-client-go/v1"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+	"github.com/stretchr/testify/suite"
+)
+
+var (
+	testCRMURL = "https://fake-uri.retailcrm.ru"
+	testMGURL  = "https://mg-url.example.com"
+)
+
+type UtilsTest struct {
+	suite.Suite
+	utils *Utils
+}
+
+func mgClient() *v1.MgClient {
+	return v1.New(testMGURL, "token")
+}
+
+func (u *UtilsTest) SetupTest() {
+	logger := NewLogger("code", logging.DEBUG, DefaultLogFormatter())
+	awsConfig := ConfigAWS{
+		AccessKeyID:     "access key id (will be removed)",
+		SecretAccessKey: "secret access key",
+		Region:          "region",
+		Bucket:          "bucket",
+		FolderName:      "folder",
+		ContentType:     "image/jpeg",
+	}
+
+	u.utils = NewUtils(awsConfig, logger, false)
+	u.utils.TokenCounter = 12345
+}
+
+func (u *UtilsTest) Test_ResetUtils() {
+	assert.Equal(u.T(), "access key id (will be removed)", u.utils.ConfigAWS.AccessKeyID)
+	assert.Equal(u.T(), uint32(12345), u.utils.TokenCounter)
+	assert.False(u.T(), u.utils.IsDebug)
+
+	awsConfig := u.utils.ConfigAWS
+	awsConfig.AccessKeyID = "access key id"
+	u.utils.resetUtils(awsConfig, true, 0)
+
+	assert.Equal(u.T(), "access key id", u.utils.ConfigAWS.AccessKeyID)
+	assert.Equal(u.T(), uint32(0), u.utils.TokenCounter)
+	assert.True(u.T(), u.utils.IsDebug)
+}
+
+func (u *UtilsTest) Test_GenerateToken() {
+	u.utils.TokenCounter = 12345
+	token := u.utils.GenerateToken()
+	assert.NotEmpty(u.T(), token)
+	assert.Equal(u.T(), uint32(12346), u.utils.TokenCounter)
+}
+
+func (u *UtilsTest) Test_GetAPIClient_FailRuntime() {
+	defer gock.Off()
+	gock.New(testCRMURL)
+
+	_, status, err := u.utils.GetAPIClient(testCRMURL, "key")
+	assert.Equal(u.T(), http.StatusInternalServerError, status)
+	assert.NotNil(u.T(), err)
+}
+
+func (u *UtilsTest) Test_GetAPIClient_FailAPI() {
+	defer gock.Off()
+	gock.New(testCRMURL).
+		Get("/credentials").
+		Reply(http.StatusBadRequest).
+		BodyString(`{"success": false, "errorMsg": "error message"}`)
+
+	_, status, err := u.utils.GetAPIClient(testCRMURL, "key")
+	assert.Equal(u.T(), http.StatusBadRequest, status)
+	if assert.NotNil(u.T(), err) {
+		assert.Equal(u.T(), "invalid credentials", err.Error())
+	}
+}
+
+func (u *UtilsTest) Test_GetAPIClient_FailAPICredentials() {
+	resp := v5.CredentialResponse{
+		Success:        true,
+		Credentials:    []string{},
+		SiteAccess:     "all",
+		SitesAvailable: []string{},
+	}
+
+	data, _ := json.Marshal(resp)
+
+	defer gock.Off()
+	gock.New(testCRMURL).
+		Get("/credentials").
+		Reply(http.StatusOK).
+		BodyString(string(data))
+
+	_, status, err := u.utils.GetAPIClient(testCRMURL, "key")
+	assert.Equal(u.T(), http.StatusBadRequest, status)
+	if assert.NotNil(u.T(), err) {
+		assert.Equal(u.T(), "missing credentials", err.Error())
+	}
+}
+
+func (u *UtilsTest) Test_GetAPIClient_Success() {
+	resp := v5.CredentialResponse{
+		Success: true,
+		Credentials: []string{
+			"/api/integration-modules/{code}",
+			"/api/integration-modules/{code}/edit",
+		},
+		SiteAccess:     "all",
+		SitesAvailable: []string{"site"},
+	}
+
+	data, _ := json.Marshal(resp)
+
+	defer gock.Off()
+	gock.New(testCRMURL).
+		Get("/credentials").
+		Reply(http.StatusOK).
+		BodyString(string(data))
+
+	_, status, err := u.utils.GetAPIClient(testCRMURL, "key")
+	require.NoError(u.T(), err)
+	assert.Equal(u.T(), 0, status)
+}
+
+func (u *UtilsTest) Test_UploadUserAvatar_FailGet() {
+	defer gock.Off()
+	gock.New("https://example.com")
+
+	uri, err := u.utils.UploadUserAvatar("https://example.com/image.jpg")
+	assert.Empty(u.T(), uri)
+	assert.Error(u.T(), err)
+}
+
+func (u *UtilsTest) Test_UploadUserAvatar_FailBadRequest() {
+	defer gock.Off()
+	gock.New("https://example.com").
+		Get("/image.jpg").
+		Reply(200).
+		BodyString(`no image here`)
+
+	uri, err := u.utils.UploadUserAvatar("https://example.com/image.jpg")
+	assert.Empty(u.T(), uri)
+	assert.Error(u.T(), err)
+}
+
+func (u *UtilsTest) Test_RemoveTrailingSlash() {
+	assert.Equal(u.T(), testCRMURL, u.utils.RemoveTrailingSlash(testCRMURL+"/"))
+	assert.Equal(u.T(), testCRMURL, u.utils.RemoveTrailingSlash(testCRMURL))
+}
+
+func TestUtils_GetMGItemData_FailRuntime_GetImage(t *testing.T) {
+	defer gock.Off()
+	gock.New(testMGURL)
+	gock.New("https://example.com/")
+
+	_, status, err := GetMGItemData(mgClient(), "https://example.com/item.jpg", "")
+	assert.Error(t, err)
+	assert.Equal(t, 0, status)
+}
+
+func TestUtils_GetMGItemData_FailAPI(t *testing.T) {
+	defer gock.Off()
+
+	gock.New("https://example.com/").
+		Get("/item.jpg").
+		Reply(200).
+		BodyString(`fake data`)
+
+	gock.New(testMGURL).
+		Post("/files/upload_by_url").
+		Reply(400).
+		BodyString(`{"errors": ["error text"]}`)
+
+	_, status, err := GetMGItemData(mgClient(), "https://example.com/item.jpg", "")
+	assert.Error(t, err)
+	assert.Equal(t, http.StatusBadRequest, status)
+	assert.Equal(t, "error text", err.Error())
+}
+
+func TestUtils_GetMGItemData_Success(t *testing.T) {
+	fileID := "file id"
+	size := 40
+	uri := "file uri"
+	resp := v1.UploadFileResponse{
+		ID:   fileID,
+		Hash: "file hash",
+		Type: "image/jpeg",
+		Meta: v1.FileMeta{
+			Width:  &size,
+			Height: &size,
+		},
+		MimeType:  "image/jpeg",
+		Size:      250,
+		Url:       &uri,
+		CreatedAt: time.Now(),
+	}
+
+	data, _ := json.Marshal(resp)
+
+	defer gock.Off()
+
+	gock.New("https://example.com/").
+		Get("/item.jpg").
+		Reply(200).
+		BodyString(`fake data`)
+
+	gock.New(testMGURL).
+		Post("/files/upload_by_url").
+		Reply(200).
+		BodyString(string(data))
+
+	response, status, err := GetMGItemData(mgClient(), "https://example.com/item.jpg", "caption")
+	require.NoError(t, err)
+	assert.Equal(t, http.StatusOK, status)
+	assert.Equal(t, fileID, response.ID)
+	assert.Equal(t, "caption", response.Caption)
+}
+
+func TestUtils_GetEntitySHA1(t *testing.T) {
+	entity := struct {
+		Field string
+	}{
+		Field: "value",
+	}
+
+	hash, err := GetEntitySHA1(entity)
+	require.NoError(t, err)
+	assert.Equal(t, "751b56fb98c9fd803140e8287b4236675554a668", hash)
+}
+
+func TestUtils_ReplaceMarkdownSymbols(t *testing.T) {
+	test := "this *is* _test_ `string` [markdown"
+	expected := "this \\*is\\* \\_test\\_ \\`string\\` \\[markdown"
+	assert.Equal(t, expected, ReplaceMarkdownSymbols(test))
+}
+
+func TestUtils_Suite(t *testing.T) {
+	suite.Run(t, new(UtilsTest))
+}
--- a/go.mod
+++ b/go.mod
@ -3,33 +3,36 @@ module github.com/retailcrm/mg-transport-core
 go 1.12

 require (
+	github.com/DATA-DOG/go-sqlmock v1.3.3
 	github.com/aws/aws-sdk-go v1.23.9
 	github.com/certifi/gocertifi v0.0.0-20190506164543-d2eda7129713 // indirect
 	github.com/denisenkom/go-mssqldb v0.0.0-20190830225923-3302f0226fbd // indirect
-	github.com/erikstmartin/go-testdb v0.0.0-20160219214506-8d10e4a1bae5 // indirect
 	github.com/getsentry/raven-go v0.0.0-20180903072508-084a9de9eb03
 	github.com/gin-contrib/multitemplate v0.0.0-20180827023943-5799bbbb6dce
 	github.com/gin-contrib/sse v0.1.0 // indirect
 	github.com/gin-gonic/gin v1.3.0
-	github.com/go-sql-driver/mysql v1.4.1 // indirect
+	github.com/gobuffalo/packd v0.3.0
+	github.com/gobuffalo/packr/v2 v2.6.0
 	github.com/golang/protobuf v1.3.2 // indirect
 	github.com/google/go-querystring v1.0.0 // indirect
-	github.com/jinzhu/gorm v1.9.1
-	github.com/jinzhu/inflection v1.0.0 // indirect
-	github.com/jinzhu/now v1.0.1 // indirect
+	github.com/h2non/gock v1.0.10
+	github.com/jinzhu/gorm v1.9.10
+	github.com/json-iterator/go v1.1.7 // indirect
 	github.com/lib/pq v1.2.0 // indirect
 	github.com/mattn/go-isatty v0.0.9 // indirect
 	github.com/mattn/go-sqlite3 v1.11.0 // indirect
+	github.com/nbio/st v0.0.0-20140626010706-e9e8d9816f32 // indirect
 	github.com/nicksnyder/go-i18n/v2 v2.0.0-beta.5
 	github.com/op/go-logging v0.0.0-20160315200505-970db520ece7
 	github.com/pkg/errors v0.8.1
 	github.com/retailcrm/api-client-go v1.1.1
 	github.com/retailcrm/mg-transport-api-client-go v1.1.31
-	github.com/stretchr/testify v1.4.0 // indirect
+	github.com/stretchr/testify v1.4.0
 	github.com/ugorji/go v1.1.7 // indirect
 	golang.org/x/net v0.0.0-20190813141303-74dc4d7220e7 // indirect
 	golang.org/x/text v0.3.1-0.20180807135948-17ff2d5776d2
-	golang.org/x/tools v0.0.0-20190830082254-f340ed3ae274 // indirect
+	gopkg.in/go-playground/assert.v1 v1.2.1 // indirect
 	gopkg.in/go-playground/validator.v8 v8.18.2
+	gopkg.in/gormigrate.v1 v1.6.0
 	gopkg.in/yaml.v2 v2.2.2
 )
--- a/go.sum
+++ b/go.sum
@ -1,25 +1,36 @@
 cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+cloud.google.com/go v0.33.1/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
 cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
 cloud.google.com/go v0.37.4 h1:glPeL3BQJsbF6aIIYfZizMwc5LTYz250bDMjttbBGAU=
 cloud.google.com/go v0.37.4/go.mod h1:NHPJ89PdicEuT9hdPXMROBD91xc5uRDxsMtSB16k7hw=
 github.com/BurntSushi/toml v0.3.0 h1:e1/Ivsx3Z0FVTV0NSOv/aVgbUWyQuzj7DDnFblkRvsY=
 github.com/BurntSushi/toml v0.3.0/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
+github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
+github.com/DATA-DOG/go-sqlmock v1.3.3 h1:CWUqKXe0s8A2z6qCgkP4Kru7wC11YoAnoupUKFDnH08=
+github.com/DATA-DOG/go-sqlmock v1.3.3/go.mod h1:f/Ixk793poVmq4qj/V1dPUg2JEAKC73Q5eFN3EC/SaM=
 github.com/Shopify/sarama v1.19.0/go.mod h1:FVkBWblsNy7DGZRfXLU0O9RCGt5g3g3yEuWXgklEdEo=
 github.com/Shopify/toxiproxy v2.1.4+incompatible/go.mod h1:OXgGpZ6Cli1/URJOF1DMxUHB2q5Ap20/P/eIdh4G0pI=
 github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
 github.com/apache/thrift v0.12.0/go.mod h1:cp2SuWMxlEZw2r+iP2GNCdIi4C1qmUzdZFSVb+bacwQ=
+github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6/go.mod h1:grANhF5doyWs3UAsr3K4I6qtAmlQcZDesFNEHPZAzj8=
 github.com/aws/aws-sdk-go v1.23.9 h1:UYWPGrBMlrW5VCYeWMbog1T/kqZzkvvheUDQaaUAhqI=
 github.com/aws/aws-sdk-go v1.23.9/go.mod h1:KmX6BPdI08NWTb3/sm4ZGu5ShLoqVDhKgpiN924inxo=
 github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
 github.com/certifi/gocertifi v0.0.0-20190506164543-d2eda7129713 h1:UNOqI3EKhvbqV8f1Vm3NIwkrhq388sGCeAH2Op7w0rc=
 github.com/certifi/gocertifi v0.0.0-20190506164543-d2eda7129713/go.mod h1:GJKEexRPVJrBSOjoqN5VNOIKJ5Q3RViH6eu3puDRwx4=
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
+github.com/coreos/etcd v3.3.10+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
+github.com/coreos/go-etcd v2.0.0+incompatible/go.mod h1:Jez6KQU2B/sWsbdaef3ED8NzMklzPG4d5KIOhIy30Tk=
+github.com/coreos/go-semver v0.2.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
+github.com/cpuguy83/go-md2man v1.0.10/go.mod h1:SmD6nW6nTyfqj6ABTjUi3V3JVMnlJmwcJI5acqYI6dE=
 github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/denisenkom/go-mssqldb v0.0.0-20181014144952-4e0d7dc8888f/go.mod h1:xN/JuLBIz4bjkxNmByTiV1IbhfnYb6oo99phBn4Eqhc=
+github.com/denisenkom/go-mssqldb v0.0.0-20190515213511-eb9f6a1743f3/go.mod h1:zAg7JM8CkOJ43xKXIj7eRO9kmWm/TW578qo+oDO6tuM=
 github.com/denisenkom/go-mssqldb v0.0.0-20190830225923-3302f0226fbd h1:DoaaxHqzWPQCWKSTmsi8UDSiFqxbfue+Xt+qi/BFKb8=
 github.com/denisenkom/go-mssqldb v0.0.0-20190830225923-3302f0226fbd/go.mod h1:uU0N10vx1abI4qeVe79CxepBP6PPREVTgMS5Gx6/mOk=
 github.com/eapache/go-resiliency v1.1.0/go.mod h1:kFI+JgMyC7bLPUVY133qvEBtVayf5mFgVsvEsIPBvNs=
@ -27,7 +38,6 @@ github.com/eapache/go-xerial-snappy v0.0.0-20180814174437-776d5712da21/go.mod h1
 github.com/eapache/queue v1.1.0/go.mod h1:6eCeP0CKFpHLu8blIFXhExK/dRa7WDZfr6jVFPTqq+I=
 github.com/erikstmartin/go-testdb v0.0.0-20160219214506-8d10e4a1bae5 h1:Yzb9+7DPaBjB8zlTR87/ElzFsnQfuHnVUVqpZZIcV5Y=
 github.com/erikstmartin/go-testdb v0.0.0-20160219214506-8d10e4a1bae5/go.mod h1:a2zkGnVExMxdzMo3M0Hi/3sEU+cWnZpSni0O6/Yb/P0=
-github.com/fatih/color v1.7.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5KwzbycvMj4=
 github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
 github.com/getsentry/raven-go v0.0.0-20180903072508-084a9de9eb03 h1:G/9fPivTr5EiyqE9OlW65iMRUxFXMGRHgZFGo50uG8Q=
 github.com/getsentry/raven-go v0.0.0-20180903072508-084a9de9eb03/go.mod h1:KungGk8q33+aIAZUIVWZDr2OfAEBsO49PX4NzFV5kcQ=
@ -42,6 +52,15 @@ github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9
 github.com/go-sql-driver/mysql v1.4.1 h1:g24URVg0OFbNUTx9qqY1IRZ9D9z3iPyi5zKhQZpNwpA=
 github.com/go-sql-driver/mysql v1.4.1/go.mod h1:zAC/RDZ24gD3HViQzih4MyKcchzm+sOG5ZlKdlhCg5w=
 github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
+github.com/gobuffalo/envy v1.7.0 h1:GlXgaiBkmrYMHco6t4j7SacKO4XUjvh5pwXh0f4uxXU=
+github.com/gobuffalo/envy v1.7.0/go.mod h1:n7DRkBerg/aorDM8kbduw5dN3oXGswK5liaSCx4T5NI=
+github.com/gobuffalo/logger v1.0.0 h1:xw9Ko9EcC5iAFprrjJ6oZco9UpzS5MQ4jAwghsLHdy4=
+github.com/gobuffalo/logger v1.0.0/go.mod h1:2zbswyIUa45I+c+FLXuWl9zSWEiVuthsk8ze5s8JvPs=
+github.com/gobuffalo/packd v0.3.0 h1:eMwymTkA1uXsqxS0Tpoop3Lc0u3kTfiMBE6nKtQU4g4=
+github.com/gobuffalo/packd v0.3.0/go.mod h1:zC7QkmNkYVGKPw4tHpBQ+ml7W/3tIebgeo1b36chA3Q=
+github.com/gobuffalo/packr/v2 v2.6.0 h1:EMUzJIb5rof6r087PtGmgdzdLKpRBESJ/8jyL9MexfY=
+github.com/gobuffalo/packr/v2 v2.6.0/go.mod h1:sgEE1xNZ6G0FNN5xn9pevVu4nywaxHvgup67xisti08=
+github.com/gofrs/uuid v3.2.0+incompatible/go.mod h1:b2aQJv3Z4Fp6yNu3cdSllBxTCLRxnplIgP/c0N/04lM=
 github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
 github.com/gogo/protobuf v1.2.0/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
@ -52,43 +71,72 @@ github.com/golang/protobuf v1.3.2 h1:6nsPYzhq5kReh6QImI3k5qWzO4PEbvbIW2cwSfR/6xs
 github.com/golang/protobuf v1.3.2/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/golang/snappy v0.0.0-20180518054509-2e65f85255db/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
 github.com/google/btree v0.0.0-20180813153112-4030bb1f1f0c/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
+github.com/google/go-cmp v0.2.0 h1:+dTQ8DZQJz0Mb/HjFlkptS1FeQ4cWSnN941F8aEG4SQ=
 github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
 github.com/google/go-querystring v1.0.0 h1:Xkwi/a1rcvNg1PPYe5vI8GbeBY/jrVuDX5ASuANWTrk=
 github.com/google/go-querystring v1.0.0/go.mod h1:odCYkC5MyYFN7vkCjXpyrEuKhc/BUO6wN/zVPAxq5ck=
+github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
 github.com/google/martian v2.1.0+incompatible/go.mod h1:9I4somxYTbIHy5NJKHRl3wXiIaQGbYVAs8BPL6v8lEs=
 github.com/google/pprof v0.0.0-20181206194817-3ea8567a2e57/go.mod h1:zfwlbNMJ+OItoe0UupaVj+oy1omPYYDuagoSzA8v9mc=
-github.com/google/subcommands v1.0.1 h1:/eqq+otEXm5vhfBrbREPCSVQbvofip6kIz+mX5TUH7k=
-github.com/google/subcommands v1.0.1/go.mod h1:ZjhPrFU+Olkh9WazFPsl27BQ4UPiG37m3yTrtFlrHVk=
-github.com/google/wire v0.3.0 h1:imGQZGEVEHpje5056+K+cgdO72p0LQv2xIIFXNGUf60=
-github.com/google/wire v0.3.0/go.mod h1:i1DMg/Lu8Sz5yYl25iOdmc5CT5qusaa+zmRWs16741s=
 github.com/googleapis/gax-go/v2 v2.0.4/go.mod h1:0Wqv26UfaUD9n4G6kQubkQ+KchISgw+vpHVxEJEs9eg=
 github.com/gorilla/context v1.1.1/go.mod h1:kBGZzfjB9CEq2AlWe17Uuf7NDRt0dE0s8S51q0aT7Yg=
 github.com/gorilla/mux v1.6.2/go.mod h1:1lud6UwP+6orDFRuTfBEV8e9/aOM/c4fVVCaMa2zaAs=
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 github.com/hashicorp/golang-lru v0.5.0/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
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 github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpOxQnU=
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-github.com/jinzhu/gorm v1.9.1/go.mod h1:Vla75njaFJ8clLU1W44h34PjIkijhjHIYnZxMqCdxqo=
+github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANytuPF1OarO4DADm73n8=
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 github.com/jmespath/go-jmespath v0.0.0-20180206201540-c2b33e8439af h1:pmfjZENx5imkbgOkpRUYLnmbU7UEFbjtDA2hxJ1ichM=
 github.com/jmespath/go-jmespath v0.0.0-20180206201540-c2b33e8439af/go.mod h1:Nht3zPeWKUH0NzdCt2Blrr5ys8VGpn0CEB0cQHVjt7k=
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 github.com/jstemmer/go-junit-report v0.0.0-20190106144839-af01ea7f8024/go.mod h1:6v2b51hI/fHJwM22ozAgKL4VKDeJcHhJFhtBdhmNjmU=
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 github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
 github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
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 github.com/kr/logfmt v0.0.0-20140226030751-b84e30acd515/go.mod h1:+0opPa2QZZtGFBFZlji/RkVcI2GknAs/DXo4wKdlNEc=
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+github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
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@ -97,6 +145,7 @@ github.com/onsi/gomega v1.4.3/go.mod h1:ex+gbHU/CVuBBDIJjb2X0qEXbFg53c61hWP/1Cpa
 github.com/op/go-logging v0.0.0-20160315200505-970db520ece7 h1:lDH9UUVJtmYCjyT0CI4q8xvlXPxeZ0gYCVvWbmPlp88=
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@ -115,7 +164,19 @@ github.com/retailcrm/api-client-go v1.1.1 h1:yqsyYjBDdmDwExVlTdGucY9/IpEokXpkfTf
 github.com/retailcrm/api-client-go v1.1.1/go.mod h1:QRoPE2SM6ST7i2g0yEdqm7Iw98y7cYuq3q14Ot+6N8c=
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@ -124,13 +185,19 @@ github.com/stretchr/testify v1.4.0 h1:2E4SXV/wtOkTonXsotYi4li6zVWxYlZuYNCXe9XRJy
 github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
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@ -143,7 +210,7 @@ golang.org/x/net v0.0.0-20190108225652-1e06a53dbb7e/go.mod h1:mL1N/T3taQHkDXs73r
 golang.org/x/net v0.0.0-20190125091013-d26f9f9a57f3/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
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@ -152,14 +219,18 @@ golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
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@ -172,12 +243,11 @@ golang.org/x/tools v0.0.0-20180828015842-6cd1fcedba52/go.mod h1:n7NCudcB/nEzxVGm
 golang.org/x/tools v0.0.0-20190114222345-bf090417da8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
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@ -187,10 +257,16 @@ google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZi
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