SQL Server
SendGrid HTML Email with Embedded Images

Demonstrates how to send an HTML email with embedded images using SendGrid.
Chilkat SQL Server Downloads

SQL Server
-- Important: See this note about string length limitations for strings returned by sp_OAMethod calls.
--
CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    DECLARE @iTmp0 int
    -- Important: Do not use nvarchar(max).  See the warning about using nvarchar(max).
    DECLARE @sTmp0 nvarchar(4000)
    DECLARE @success int
    SELECT @success = 0

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

    DECLARE @req int
    EXEC @hr = sp_OACreate 'Chilkat.HttpRequest', @req OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    DECLARE @http int
    EXEC @hr = sp_OACreate 'Chilkat.Http', @http OUT

    -- 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;" />
    DECLARE @bdJpg int
    EXEC @hr = sp_OACreate 'Chilkat.BinData', @bdJpg OUT

    EXEC sp_OAMethod @bdJpg, 'LoadFile', @success OUT, 'qa_data/jpg/starfish.jpg'
    IF @success = 0
      BEGIN

        PRINT 'Failed to load JPG file.'
        EXEC @hr = sp_OADestroy @req
        EXEC @hr = sp_OADestroy @http
        EXEC @hr = sp_OADestroy @bdJpg
        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.
    DECLARE @sbHtml int
    EXEC @hr = sp_OACreate 'Chilkat.StringBuilder', @sbHtml OUT

    EXEC sp_OAMethod @sbHtml, 'Append', @success OUT, '<html><body><b>This is a test<b><br /><img src="data:image/jpeg;base64,'
    -- Append the base64 image data to sbHtml.
    EXEC sp_OAMethod @bdJpg, 'GetEncodedSb', @success OUT, 'base64', @sbHtml
    EXEC sp_OAMethod @sbHtml, 'Append', @success OUT, '" alt="" style="border-width:0px;" /></body></html>'

    DECLARE @json int
    EXEC @hr = sp_OACreate 'Chilkat.JsonObject', @json OUT

    EXEC sp_OAMethod @json, 'UpdateString', @success OUT, 'personalizations[0].to[0].email', 'matt@chilkat.io'
    EXEC sp_OAMethod @json, 'UpdateString', @success OUT, 'personalizations[0].to[0].name', 'Matt'
    EXEC sp_OAMethod @json, 'UpdateString', @success OUT, 'from.email', 'admin@chilkatsoft.com'
    EXEC sp_OAMethod @json, 'UpdateString', @success OUT, 'subject', 'Test HTML email with images'
    EXEC sp_OAMethod @json, 'UpdateString', @success OUT, 'content[0].type', 'text/html'
    EXEC sp_OAMethod @json, 'UpdateSb', @success OUT, 'content[0].value', @sbHtml

    EXEC sp_OASetProperty @http, 'AuthToken', 'SENDGRID_API_KEY'

    DECLARE @resp int
    EXEC @hr = sp_OACreate 'Chilkat.HttpResponse', @resp OUT

    EXEC sp_OAMethod @http, 'HttpJson', @success OUT, 'POST', 'https://api.sendgrid.com/v3/mail/send', @json, 'application/json', @resp
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @http, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @req
        EXEC @hr = sp_OADestroy @http
        EXEC @hr = sp_OADestroy @bdJpg
        EXEC @hr = sp_OADestroy @sbHtml
        EXEC @hr = sp_OADestroy @json
        EXEC @hr = sp_OADestroy @resp
        RETURN
      END


    EXEC sp_OAGetProperty @resp, 'StatusCode', @iTmp0 OUT
    PRINT 'response status code: ' + @iTmp0
    -- 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.)
    EXEC sp_OAGetProperty @resp, 'BodyStr', @sTmp0 OUT
    PRINT @sTmp0

    EXEC @hr = sp_OADestroy @req
    EXEC @hr = sp_OADestroy @http
    EXEC @hr = sp_OADestroy @bdJpg
    EXEC @hr = sp_OADestroy @sbHtml
    EXEC @hr = sp_OADestroy @json
    EXEC @hr = sp_OADestroy @resp


END
GO