Added email service

Signed-off-by: Vishal Rana <[email protected]>

Author: vishr

.gitignore

@@ -1 +1,2 @@
+.DS_Store
 vendor

_fixture/logo.svg

@@ -13,7 +13,7 @@ import (
 )
 
 type (
-	// Cube defines the Cube service.
+	// Cube defines the LabStack cube service.
 	Cube struct {
 		sling          *sling.Sling
 		requests       []*Request
@@ -103,7 +103,7 @@ func (c *Cube) dispatch() (err error) {
 	return
 }
 
-// Cube returns the Cube service.
+// Cube returns the cube service.
 func (c *Client) Cube() (cube *Cube) {
 	cube = &Cube{
 		sling:            c.sling.Path("/cube"),

cube.go

@@ -0,0 +1,60 @@
+package labstack
+
+import (
+	"fmt"
+	"net/http"
+
+	"github.com/dghubble/sling"
+	"github.com/labstack/gommon/log"
+)
+
+type (
+	// Email defines the LabStack email service.
+	Email struct {
+		sling  *sling.Sling
+		logger *log.Logger
+	}
+
+	// Message defines the email message.
+	Message struct {
+		ID          string  `json:"id,omitempty"`
+		From        string  `json:"from,omitempty"`
+		To          string  `json:"to,omitempty"`
+		Subject     string  `json:"subject,omitempty"`
+		Body        string  `json:"body,omitempty"`
+		Inlines     []*File `json:"inlines,omitempty"`
+		Attachments []*File `json:"attachments,omitempty"`
+	}
+
+	// File defines the email message attachment/inline.
+	File struct {
+		// File name
+		Name string `json:"name"`
+
+		// File type
+		Type string `json:"type"`
+
+		// Base64 encoded file content
+		Content string `json:"content"`
+	}
+)
+
+// Email returns the email service.
+func (c *Client) Email() *Email {
+	return &Email{
+		sling:  c.sling.Path("/email"),
+		logger: c.logger,
+	}
+}
+
+// Send sends the email message.
+func (e *Email) Send(m *Message) (err error) {
+	res, err := e.sling.Post("").BodyJSON(m).Receive(nil, nil)
+	if err != nil {
+		return
+	}
+	if res.StatusCode != http.StatusCreated {
+		return fmt.Errorf("email: error sending email, status=%d, message=%v", res.StatusCode, err)
+	}
+	return
+}

email.go

@@ -0,0 +1,53 @@
+package labstack
+
+import (
+	"encoding/base64"
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"io/ioutil"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestEmail(t *testing.T) {
+	data, _ := ioutil.ReadFile("_fixture/logo.svg")
+	file := &File{
+		Name:    "logo",
+		Type:    "image/svg+xml",
+		Content: base64.StdEncoding.EncodeToString(data),
+	}
+	msg := &Message{
+		From:    "Jack",
+		To:      "[email protected]",
+		Subject: "Hello",
+		Body:    "How are you doing?",
+		Attachments: []*File{
+			file,
+		},
+		Inlines: []*File{
+			file,
+		},
+	}
+	handler := func(w http.ResponseWriter, r *http.Request) {
+		m := new(Message)
+		if err := json.NewDecoder(r.Body).Decode(m); err == nil {
+			if assert.EqualValues(t, msg, m) {
+				if assert.Len(t, m.Attachments, 1) && assert.Len(t, m.Inlines, 1) {
+					if assert.EqualValues(t, m.Attachments[0], file) && assert.EqualValues(t, m.Inlines[0], file) {
+						w.WriteHeader(http.StatusCreated)
+						return
+					}
+				}
+			}
+		}
+		w.WriteHeader(http.StatusInternalServerError)
+	}
+	ts := httptest.NewServer(http.HandlerFunc(handler))
+	defer ts.Close()
+	apiURL = ts.URL
+	e := NewClient("").Email()
+	assert.NoError(t, e.Send(msg))
+}

email_test.go

@@ -11,7 +11,7 @@ import (
 )
 
 type (
-	// Logging defines the Logging service.
+	// Logging defines the LabStack logging service.
 	Logging struct {
 		sling            *sling.Sling
 		logs             []*Log
@@ -90,7 +90,7 @@ func (l *Logging) dispatch() (err error) {
 	return
 }
 
-// Logging returns the Logging service.
+// Logging returns the logging service.
 func (c *Client) Logging() (logging *Logging) {
 	logging = &Logging{
 		sling:            c.sling.Path("/logging"),
@@ -137,7 +137,7 @@ func (l *Logging) Log(level, format string, args ...interface{}) {
 	}
 	message := fmt.Sprintf(format, args...)
 	log := &Log{
-		Time:    time.Now().Format(RFC3339Milli),
+		Time:    time.Now().Format(rfc3339Milli),
 		Module:  l.Module,
 		Level:   level,
 		Message: message,

logging.go

@@ -6,10 +6,9 @@ import (
 	"strings"
 )
 
-// Time layouts
 const (
-	RFC3339Milli = "2006-01-02T15:04:05.000Z07:00"
-	RFC3339Micro = "2006-01-02T15:04:05.000000Z07:00"
+	rfc3339Milli = "2006-01-02T15:04:05.000Z07:00"
+	rfc3339Micro = "2006-01-02T15:04:05.000000Z07:00"
 )
 
 func realIP(r *http.Request) string {