(DataFlex) Send GMail with Attachments

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

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

Use ChilkatAx-win32.pkg

Procedure Test
    Boolean iSuccess
    Handle hoEmail
    String sCid
    Handle hoSbHtml
    Integer iNumReplacements
    String sMimeType
    Variant vSbMime
    Handle hoSbMime
    Handle hoHttp
    String sUrl
    Boolean iSendGzipped
    Variant vResp
    Handle hoResp
    String sTemp1
    Integer iTemp1
    Boolean bTemp1

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

    // Use the Chilkat Email API to create or load an email.
    Get Create (RefClass(cComChilkatEmail)) To hoEmail
    If (Not(IsComObjectCreated(hoEmail))) Begin
        Send CreateComObject of hoEmail
    End

    // The From name/address don't need to be specified. 
    // GMail will automatically use your Gmail address if the following 2 lines are omitted.
    Set ComFromName Of hoEmail To "My Name"
    Set ComFromAddress Of hoEmail To "my_account_name@gmail.com"

    Get ComAddTo Of hoEmail "John Smith" "somebody@somewhere.com" To iSuccess
    // To add more recipients, make additional calls to AddTo or AddCC, one per recipient...

    Set ComSubject Of hoEmail To "This is a test GMail email created using Chilkat."
    Set ComCharset Of hoEmail To "utf-8"
    Get ComAddPlainTextAlternativeBody Of hoEmail "This is a test" To iSuccess

    // Create an HTML email body with an embedded image.
    Get ComAddRelatedFile Of hoEmail "qa_data/jpg/starfish.jpg" To sCid
    Get Create (RefClass(cComChilkatStringBuilder)) To hoSbHtml
    If (Not(IsComObjectCreated(hoSbHtml))) Begin
        Send CreateComObject of hoSbHtml
    End
    Get ComAppend Of hoSbHtml '<html><body>This is a <b>test</b><br><img src="cid:STARFISH_CID"/></body></html>' To iSuccess
    Get ComReplace Of hoSbHtml "STARFISH_CID" sCid To iNumReplacements

    Get ComGetAsString Of hoSbHtml To sTemp1
    Get ComAddHtmlAlternativeBody Of hoEmail sTemp1 To iSuccess

    // Add some attachments..
    Get ComAddFileAttachment Of hoEmail "qa_data/helloWorld.pdf" To sMimeType
    Get ComLastMethodSuccess Of hoEmail To bTemp1
    If (bTemp1 <> True) Begin
        Showln "Failed to add PDF attachment."
        Procedure_Return
    End

    Get ComAddFileAttachment Of hoEmail "qa_data/msword/sample2.docx" To sMimeType
    Get ComLastMethodSuccess Of hoEmail To bTemp1
    If (bTemp1 <> True) Begin
        Showln "Failed to add MS-Word attachment."
        Procedure_Return
    End

    // OK.. we now have an HTML email with 2 attachments..
    Get Create (RefClass(cComChilkatStringBuilder)) To hoSbMime
    If (Not(IsComObjectCreated(hoSbMime))) Begin
        Send CreateComObject of hoSbMime
    End
    Get pvComObject of hoSbMime to vSbMime
    Get ComGetMimeSb Of hoEmail vSbMime To iSuccess

    // Send the email.  (GMail has a 5MB limit on the total email size.)
    Get Create (RefClass(cComChilkatHttp)) To hoHttp
    If (Not(IsComObjectCreated(hoHttp))) Begin
        Send CreateComObject of hoHttp
    End
    Set ComAuthToken Of hoHttp To "GMAIL-ACCESS-TOKEN"

    // Send using the simple upload request for the Gmail API
    Move "https://www.googleapis.com/upload/gmail/v1/users/me/messages/send?uploadType=media" To sUrl
    Move True To iSendGzipped
    Get pvComObject of hoSbMime to vSbMime
    Get ComPTextSb Of hoHttp "POST" sUrl vSbMime "utf-8" "message/rfc822" False iSendGzipped To vResp
    If (IsComObject(vResp)) Begin
        Get Create (RefClass(cComChilkatHttpResponse)) To hoResp
        Set pvComObject Of hoResp To vResp
    End
    Get ComLastMethodSuccess Of hoHttp To bTemp1
    If (bTemp1 <> True) Begin
        Get ComLastErrorText Of hoHttp To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    // A status code of 200 indicates success.
    Get ComStatusCode Of hoResp To iTemp1
    Showln "Response status code: " iTemp1
    Showln "Response body:"
    Get ComBodyStr Of hoResp To sTemp1
    Showln sTemp1
    Send Destroy of hoResp

    // 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"
    //  ]
    // }


End_Procedure