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| func buildEmailInput(source, destination, subject, message string, | |
| csvFile []byte) (*ses.SendRawEmailInput, error) { | |
| buf := new(bytes.Buffer) | |
| writer := multipart.NewWriter(buf) | |
| // email main header: | |
| h := make(textproto.MIMEHeader) | |
| h.Set("From", source) | |
| h.Set("To", destination) | |
| h.Set("Return-Path", source) | |
| h.Set("Subject", subject) | |
| h.Set("Content-Language", "en-US") | |
| h.Set("Content-Type", "multipart/mixed; boundary=\""+writer.Boundary()+"\"") | |
| h.Set("MIME-Version", "1.0") | |
| _, err := writer.CreatePart(h) | |
| if err != nil { | |
| return nil, err | |
| } | |
| // body: | |
| h = make(textproto.MIMEHeader) | |
| h.Set("Content-Transfer-Encoding", "7bit") | |
| h.Set("Content-Type", "text/plain; charset=us-ascii") | |
| part, err := writer.CreatePart(h) | |
| if err != nil { | |
| return nil, err | |
| } | |
| _, err = part.Write([]byte(message)) | |
| if err != nil { | |
| return nil, err | |
| } | |
| // file attachment: | |
| fn := attachmentFilename | |
| h = make(textproto.MIMEHeader) | |
| h.Set("Content-Disposition", "attachment; filename="+fn) | |
| h.Set("Content-Type", "text/csv; x-unix-mode=0644; name=\""+fn+"\"") | |
| h.Set("Content-Transfer-Encoding", "7bit") | |
| part, err = writer.CreatePart(h) | |
| if err != nil { | |
| return nil, err | |
| } | |
| _, err = part.Write(csvFile) | |
| if err != nil { | |
| return nil, err | |
| } | |
| err = writer.Close() | |
| if err != nil { | |
| return nil, err | |
| } | |
| // Strip boundary line before header (doesn't work with it present) | |
| s := buf.String() | |
| if strings.Count(s, "\n") < 2 { | |
| return nil, fmt.Errorf("invalid e-mail content") | |
| } | |
| s = strings.SplitN(s, "\n", 2)[1] | |
| raw := ses.RawMessage{ | |
| Data: []byte(s), | |
| } | |
| input := &ses.SendRawEmailInput{ | |
| Destinations: []*string{aws.String(destination)}, | |
| Source: aws.String(source), | |
| RawMessage: &raw, | |
| } | |
| return input, nil | |
| } |
You, my good sir, have saved me a lot of head banging today. The AWS docs sent me on a wild goose chase that lasted ages. Cheers!
⭐⭐⭐⭐⭐
line 38 should be h.Set("Content-Disposition", "attachment; filename=""+fn+""").
Else this fails if file name has chars like @
Though, thanks for the ready made code.
you may be better using the help of https://pkg.go.dev/github.com/jhillyerd/enmime
You build the email with enmime.EmailBuilder, then get the thing with the .Build attach method and use a buffer from bytes to enmime.Part.Encode the entire thing into the buffer, then you can use that to get the bytes back.
easy peasy!
I am unable to send attachment with file type other than text/csv. Can anyone please help!!!
be explicit about any error messages or panics, maybe?
I am unable to send attachment with file type other than text/csv. Can anyone please help!!!
be explicit about any error messages or panics, maybe?
When I try to send a jpeg image with Content-Type value image/jpeg I am getting a Serialization Error with status code 500.
@rishab-zomato better use the library I'm linking on here
Wow, was desperate about sending an email with SES and GO. This literally saved me hours. Thank you so much.