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(PowerBuilder) GMail SMTP Send using Previously Obtained OAuth2 Access Token

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

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

integer li_rc
oleobject loo_Json
integer li_Success
string ls_AccessToken
oleobject loo_Mailman
oleobject loo_Email

//  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"
//  	}
// 
loo_Json = create oleobject
li_rc = loo_Json.ConnectToNewObject("Chilkat_9_5_0.JsonObject")
if li_rc < 0 then
    destroy loo_Json
    MessageBox("Error","Connecting to COM object failed")
    return
end if
li_Success = loo_Json.LoadFile("qa_data/tokens/_gmailSmtp.json")
if li_Success <> 1 then
    Write-Debug "Failed to load GMail access token file."
    destroy loo_Json
    return
end if

ls_AccessToken = loo_Json.StringOf("access_token")

loo_Mailman = create oleobject
li_rc = loo_Mailman.ConnectToNewObject("Chilkat_9_5_0.MailMan")

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

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

//  Create a new email object
loo_Email = create oleobject
li_rc = loo_Email.ConnectToNewObject("Chilkat_9_5_0.Email")

loo_Email.Subject = "This is a test"
loo_Email.Body = "This is a test"
loo_Email.From = "Chilkat <chilkat.support@gmail.com>"
loo_Email.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.
li_Success = loo_Mailman.SendEmail(loo_Email)
if li_Success <> 1 then
    Write-Debug loo_Mailman.LastErrorText
    destroy loo_Json
    destroy loo_Mailman
    destroy loo_Email
    return
end if

//  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).
li_Success = loo_Mailman.CloseSmtpConnection()
if li_Success <> 1 then
    Write-Debug "Connection to SMTP server not closed cleanly."
end if

Write-Debug "Email Sent via GMail with OAuth2 authentication."


destroy loo_Json
destroy loo_Mailman
destroy loo_Email

 

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