(Xojo Plugin) Send GMail with Attachments

Demonstrates how to send an email containing attachments using the GMail REST API.

Chilkat Xojo Plugin Download

Xojo Plugin for Windows, Linux, Mac OS X, and ARM, ARM64

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

Dim success As Boolean

// Use the Chilkat Email API to create or load an email.
Dim email As New Chilkat.Email

// The From name/address don't need to be specified. 
// GMail will automatically use your Gmail address if the following 2 lines are omitted.
email.FromName = "My Name"
email.FromAddress = "my_account_name@gmail.com"

success = email.AddTo("John Smith","somebody@somewhere.com")
// To add more recipients, make additional calls to AddTo or AddCC, one per recipient...

email.Subject = "This is a test GMail email created using Chilkat."
email.Charset = "utf-8"
success = email.AddPlainTextAlternativeBody("This is a test")

// Create an HTML email body with an embedded image.
Dim cid As String
cid = email.AddRelatedFile("qa_data/jpg/starfish.jpg")
Dim sbHtml As New Chilkat.StringBuilder
success = sbHtml.Append("<html><body>This is a <b>test</b><br><img src=""cid:STARFISH_CID""/></body></html>")
Dim numReplacements As Int32
numReplacements = sbHtml.Replace("STARFISH_CID",cid)

success = email.AddHtmlAlternativeBody(sbHtml.GetAsString())

// Add some attachments..
Dim mimeType As String
mimeType = email.AddFileAttachment("qa_data/helloWorld.pdf")
If (email.LastMethodSuccess <> True) Then
    System.DebugLog("Failed to add PDF attachment.")
    Return
End If

mimeType = email.AddFileAttachment("qa_data/msword/sample2.docx")
If (email.LastMethodSuccess <> True) Then
    System.DebugLog("Failed to add MS-Word attachment.")
    Return
End If

// OK.. we now have an HTML email with 2 attachments..
Dim sbMime As New Chilkat.StringBuilder
success = email.GetMimeSb(sbMime)

// Send the email.  (GMail has a 5MB limit on the total email size.)
Dim http As New Chilkat.Http
http.AuthToken = "GMAIL-ACCESS-TOKEN"

// Send using the simple upload request for the Gmail API
Dim url As String
url = "https://www.googleapis.com/upload/gmail/v1/users/me/messages/send?uploadType=media"
Dim sendGzipped As Boolean
sendGzipped = True
Dim resp As Chilkat.HttpResponse
resp = http.PTextSb("POST",url,sbMime,"utf-8","message/rfc822",False,sendGzipped)
If (http.LastMethodSuccess <> True) Then
    System.DebugLog(http.LastErrorText)
    Return
End If

// A status code of 200 indicates success.
System.DebugLog("Response status code: " + Str(resp.StatusCode))
System.DebugLog("Response body:")
System.DebugLog(resp.BodyStr)

// The response body contains JSON.
// Use the online tool at Generate JSON Parsing Code
// to generate JSON parsing code.

// A sample successful JSON response:

// {
//  "id": "166f0d4ac39e50bf",
//  "threadId": "166f0d4ac39e50bf",
//  "labelIds": [
//   "SENT"
//  ]
// }