Chilkat Examples

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DataFlex Web API Examples

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(DataFlex) SendGrid HTML Email with Embedded Images

See more SendGrid Examples

Demonstrates how to send an HTML email with embedded images using SendGrid.

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

Use ChilkatAx-win32.pkg

Procedure Test
    Handle hoReq
    Handle hoHttp
    Boolean iSuccess
    Handle hoBdJpg
    Variant vSbHtml
    Handle hoSbHtml
    Variant vJson
    Handle hoJson
    Variant vResp
    Handle hoResp
    String sTemp1
    Integer iTemp1
    Boolean bTemp1

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

    Get Create (RefClass(cComChilkatHttpRequest)) To hoReq
    If (Not(IsComObjectCreated(hoReq))) Begin
        Send CreateComObject of hoReq
    End
    Get Create (RefClass(cComChilkatHttp)) To hoHttp
    If (Not(IsComObjectCreated(hoHttp))) Begin
        Send CreateComObject of hoHttp
    End

    // First.. load a JPG file and build an HTML img tag with the JPG data inline encoded.
    // Our HTML img tag will look like this:
    // <img src="data:image/jpeg;base64,/9j/4AAQSkZJRgABAQEA3ADcAA..." alt="" style="border-width:0px;" />
    Get Create (RefClass(cComChilkatBinData)) To hoBdJpg
    If (Not(IsComObjectCreated(hoBdJpg))) Begin
        Send CreateComObject of hoBdJpg
    End
    Get ComLoadFile Of hoBdJpg "qa_data/jpg/starfish.jpg" To iSuccess
    If (iSuccess = False) Begin
        Showln "Failed to load JPG file."
        Procedure_Return
    End

    // Note: HTML containing embedded base64 image data may not be visible in all email clients.
    // For example, GMail might not display the image, but viewing in Outlook might be OK.
    Get Create (RefClass(cComChilkatStringBuilder)) To hoSbHtml
    If (Not(IsComObjectCreated(hoSbHtml))) Begin
        Send CreateComObject of hoSbHtml
    End
    Get ComAppend Of hoSbHtml '<html><body><b>This is a test<b><br /><img src="data:image/jpeg;base64,' To iSuccess
    // Append the base64 image data to sbHtml.
    Get pvComObject of hoSbHtml to vSbHtml
    Get ComGetEncodedSb Of hoBdJpg "base64" vSbHtml To iSuccess
    Get ComAppend Of hoSbHtml '" alt="" style="border-width:0px;" /></body></html>' To iSuccess

    Get Create (RefClass(cComChilkatJsonObject)) To hoJson
    If (Not(IsComObjectCreated(hoJson))) Begin
        Send CreateComObject of hoJson
    End
    Get ComUpdateString Of hoJson "personalizations[0].to[0].email" "matt@chilkat.io" To iSuccess
    Get ComUpdateString Of hoJson "personalizations[0].to[0].name" "Matt" To iSuccess
    Get ComUpdateString Of hoJson "from.email" "admin@chilkatsoft.com" To iSuccess
    Get ComUpdateString Of hoJson "subject" "Test HTML email with images" To iSuccess
    Get ComUpdateString Of hoJson "content[0].type" "text/html" To iSuccess
    Get pvComObject of hoSbHtml to vSbHtml
    Get ComUpdateSb Of hoJson "content[0].value" vSbHtml To iSuccess

    Set ComAuthToken Of hoHttp To "SENDGRID_API_KEY"

    Get pvComObject of hoJson to vJson
    Get ComPostJson3 Of hoHttp "https://api.sendgrid.com/v3/mail/send" "application/json" vJson 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
    End
    Else Begin
        Get ComStatusCode Of hoResp To iTemp1
        Showln "response status code: " iTemp1
        // Display the response.
        // If successful, the response code is 202 and the response body string is empty.
        // (The response body string may also be empty for error response codes.)
        Get ComBodyStr Of hoResp To sTemp1
        Showln sTemp1
        Send Destroy of hoResp
    End



End_Procedure

 

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