Xbase++

GMail SMTP Send using Previously Obtained OAuth2 Access Token

See more GMail SMTP/IMAP/POP Examples

Demonstrates how to send email using GMail and OAuth2 authentication. This example assumes an OAuth2 access token was previously obtained. Xbase++

LOCAL nSuccess
LOCAL oJson
LOCAL cAccessToken
LOCAL oMailman
LOCAL oEmail

nSuccess := 0

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

//  See Get GMail SMTP Access Token 
//  for sample code showing how to obtain a GMail SMTP access token for desktop apps.

//  In this example, our access token was previously saved to the following file which contains JSON like this:
//  	{
//  	 "access_token": "ya39.Ci-XA_C5bGgRDC3UaD-h0_NeL-DVIQnI2gHtBBBHkZzrwlARkwX6R3O0PCDEzRlfaQ",
//  	 "token_type": "Bearer",
//  	 "expires_in": 3600,
//  	 "refresh_token": "1/r_2c_7jddspcdfesrrfKqfXtqo08D6Q-gUU0DsdfVMsx0c"
//  	}
//  
oJson := CreateObject("Chilkat.JsonObject")
nSuccess := oJson:LoadFile("qa_data/tokens/_gmailSmtp.json")
IF (nSuccess != 1)
    ? "Failed to load GMail access token file."
    oJson:destroy()
    RETURN
ENDIF

cAccessToken := oJson:StringOf("access_token")

oMailman := CreateObject("Chilkat.MailMan")

//  Set the properties for the GMail SMTP server:
oMailman:SmtpHost := "smtp.gmail.com"
oMailman:SmtpPort := 587
oMailman:StartTLS := 1

//  The SMTP username should be the GMail address of the user's account that authorized your app to send email.
oMailman:SmtpUsername := "chilkat.support@gmail.com"
oMailman:OAuth2AccessToken := cAccessToken

//  Create a new email object
oEmail := CreateObject("Chilkat.Email")

oEmail:Subject := "This is a test"
oEmail:Body := "This is a test"
oEmail:From := "Chilkat <chilkat.support@gmail.com>"
oEmail:AddTo("Chilkat Admin", "admin@chilkatsoft.com")
//  To add more recipients, call AddTo, AddCC, or AddBcc once per recipient.

//  Call SendEmail to connect to the SMTP server and send.
//  The connection (i.e. session) to the SMTP server remains
//  open so that subsequent SendEmail calls may use the
//  same connection.  
nSuccess := oMailman:SendEmail(oEmail)
IF (nSuccess != 1)
    ? oMailman:LastErrorText
    oJson:destroy()
    oMailman:destroy()
    oEmail:destroy()
    RETURN
ENDIF

//  You may close the connection here.  If the connection is kept open, 
//  the next call to mailman.SendEmail will continue using the already-established connection
//  (and automatically re-connect if needed).
nSuccess := oMailman:CloseSmtpConnection()
IF (nSuccess != 1)
    ? "Connection to SMTP server not closed cleanly."
ENDIF

? "Email Sent via GMail with OAuth2 authentication."

oJson:destroy()
oMailman:destroy()
oEmail:destroy()