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amazon-web-servicesgoamazon-ses

How to implement aws ses SendRawEmail with attachment in golang


I need to implement Amazon ses SendRawEmail with attachment in golang,
i tried with the following code :

session, err := session.NewSession()
svc := ses.New(session, &aws.Config{Region: aws.String("us-west-2")})

source := aws.String("XXX <xxx@xxx.com>")
destinations := []*string{aws.String("xxx <xxx@xxx.com>")}
message := ses.RawMessage{ Data: []byte(` From: xxx <xxx@xxx.com>\\nTo: xxx  <xxx@xxx.com>\\nSubject: Test email (contains an attachment)\\nMIME-Version: 1.0\\nContent-type: Multipart/Mixed; boundary=\"NextPart\"\\n\\n--NextPart\\nContent-Type: text/plain\\n\\nThis is the message body.\\n\\n--NextPart\\nContent-Type: text/plain;\\nContent-Disposition: attachment; filename=\"sample.txt\"\\n\\nThis is the text in the attachment.\\n\\n--NextPart--" `)}
input := ses.SendRawEmailInput{Source: source, Destinations: destinations, RawMessage: &message}
output, err := svc.SendRawEmail(&input)

but in the mail I receive, it shows the content which I have given in the message, instead of the attachment. Not sure what exactly is wrong???


Solution

  • Refer to AWS example for Sending RAW email with attachment.

    Implementation Suggestion: for an easy to compose email and get email as bytes and send it to SES as mentioned in the above reference example.

    Use library gopkg.in/gomail.v2 to compose your email message with attachment and then call WriteTo method.

    var emailRaw bytes.Buffer
    emailMessage.WriteTo(&emailRaw)
    
    // while create instance of RawMessage
    RawMessage: &ses.RawMessage{
        Data: emailRaw.Bytes(),
    }
    

    Good luck!


    EDIT: For the comment.

    Compose the email-

    msg := gomail.NewMessage()
    msg.SetHeader("From", "alex@example.com")
    msg.SetHeader("To", "bob@example.com", "cora@example.com")
    msg.SetHeader("Subject", "Hello!")
    msg.SetBody("text/html", "Hello <b>Bob</b> and <i>Cora</i>!")
    msg.Attach("/home/Alex/lolcat.jpg")
    
    var emailRaw bytes.Buffer
    msg.WriteTo(&emailRaw)
    
    message := ses.RawMessage{ Data: emailRaw.Bytes() }
    
    // Remaining is same as what you mentioned the question.