(Visual FoxPro) SendGrid HTML Email with Embedded Images

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

Note: This example requires Chilkat v11.0.0 or greater.

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

LOCAL lnSuccess
LOCAL loReq
LOCAL loHttp
LOCAL loBdJpg
LOCAL loSbHtml
LOCAL loJson
LOCAL loResp

lnSuccess = 0

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

loReq = CreateObject('Chilkat.HttpRequest')
loHttp = CreateObject('Chilkat.Http')

* 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;" />
loBdJpg = CreateObject('Chilkat.BinData')
lnSuccess = loBdJpg.LoadFile("qa_data/jpg/starfish.jpg")
IF (lnSuccess = 0) THEN
    ? "Failed to load JPG file."
    RELEASE loReq
    RELEASE loHttp
    RELEASE loBdJpg
    CANCEL
ENDIF

* 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.
loSbHtml = CreateObject('Chilkat.StringBuilder')
loSbHtml.Append('<html><body><b>This is a test<b><br /><img src="data:image/jpeg;base64,')
* Append the base64 image data to sbHtml.
loBdJpg.GetEncodedSb("base64",loSbHtml)
loSbHtml.Append('" alt="" style="border-width:0px;" /></body></html>')

loJson = CreateObject('Chilkat.JsonObject')
loJson.UpdateString("personalizations[0].to[0].email","matt@chilkat.io")
loJson.UpdateString("personalizations[0].to[0].name","Matt")
loJson.UpdateString("from.email","admin@chilkatsoft.com")
loJson.UpdateString("subject","Test HTML email with images")
loJson.UpdateString("content[0].type","text/html")
loJson.UpdateSb("content[0].value",loSbHtml)

loHttp.AuthToken = "SENDGRID_API_KEY"

loResp = CreateObject('Chilkat.HttpResponse')
lnSuccess = loHttp.HttpJson("POST","https://api.sendgrid.com/v3/mail/send",loJson,"application/json",loResp)
IF (lnSuccess = 0) THEN
    ? loHttp.LastErrorText
    RELEASE loReq
    RELEASE loHttp
    RELEASE loBdJpg
    RELEASE loSbHtml
    RELEASE loJson
    RELEASE loResp
    CANCEL
ENDIF

? "response status code: " + STR(loResp.StatusCode)
* 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.)
? loResp.BodyStr

RELEASE loReq
RELEASE loHttp
RELEASE loBdJpg
RELEASE loSbHtml
RELEASE loJson
RELEASE loResp