(PureBasic) Mailgun Send Send HTML Email with Attachments and HTML Images

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Sends an HTML email with images and attachments.

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

For more information, see https://documentation.mailgun.com/en/latest/api-sending.html#sending

Chilkat PureBasic Module Download

Chilkat PureBasic Module

IncludeFile "CkBinData.pb"
IncludeFile "CkHttp.pb"
IncludeFile "CkJsonObject.pb"
IncludeFile "CkHttpRequest.pb"
IncludeFile "CkHttpResponse.pb"
IncludeFile "CkStringBuilder.pb"

Procedure ChilkatExample()

    success.i = 0

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

    http.i = CkHttp::ckCreate()
    If http.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkHttp::setCkLogin(http, "api")
    CkHttp::setCkPassword(http, "sending_api_key")    ;  Replace with your actual sending API key.

    req.i = CkHttpRequest::ckCreate()
    If req.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkHttpRequest::setCkHttpVerb(req, "POST")
    CkHttpRequest::setCkPath(req, "/v3/YOUR_DOMAIN_NAME/messages")
    CkHttpRequest::setCkContentType(req, "multipart/form-data")

    ; Change YOUR_DOMAIN_NAME to something like "mg.your-domain.com".
    CkHttpRequest::ckAddParam(req,"from","Your Name <mailgun@YOUR_DOMAIN_NAME>")
    CkHttpRequest::ckAddParam(req,"to","Joe Example <joe@example.com>")
    CkHttpRequest::ckAddParam(req,"subject","Hello Joe Example")
    CkHttpRequest::ckAddParam(req,"html","<html><body><b>This is the HTML body</b><br><img src=" + Chr(34) + "cid:cidStarfish.jpg" + Chr(34) + "></body></html>")

    ; An a attachd file
    bd.i = CkBinData::ckCreate()
    If bd.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    success = CkBinData::ckLoadFile(bd,"qa_data/hamlet.zip")
    If success = 0
        Debug "Failed to load file attachment."
        CkHttp::ckDispose(http)
        CkHttpRequest::ckDispose(req)
        CkBinData::ckDispose(bd)
        ProcedureReturn
    EndIf

    CkHttpRequest::ckAddBdForUpload(req,"attachment","hamlet.zip",bd,"application/zip")

    ; add an image as CID
    success = CkBinData::ckLoadFile(bd,"qa_data/jpg/starfish.jpg")
    If success = 0
        Debug "Failed to load HTML image."
        CkHttp::ckDispose(http)
        CkHttpRequest::ckDispose(req)
        CkBinData::ckDispose(bd)
        ProcedureReturn
    EndIf

    CkHttpRequest::ckAddBdForUpload(req,"inline","cidStarfish.jpg",bd,"image/jpeg")

    resp.i = CkHttpResponse::ckCreate()
    If resp.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    success = CkHttp::ckHttpSReq(http,"api.mailgun.net",443,1,req,resp)
    If success = 0
        Debug CkHttp::ckLastErrorText(http)
        CkHttp::ckDispose(http)
        CkHttpRequest::ckDispose(req)
        CkBinData::ckDispose(bd)
        CkHttpResponse::ckDispose(resp)
        ProcedureReturn
    EndIf

    sbResponseBody.i = CkStringBuilder::ckCreate()
    If sbResponseBody.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkHttpResponse::ckGetBodySb(resp,sbResponseBody)
    jResp.i = CkJsonObject::ckCreate()
    If jResp.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkJsonObject::ckLoadSb(jResp,sbResponseBody)
    CkJsonObject::setCkEmitCompact(jResp, 0)

    Debug "Response Body:"
    Debug CkJsonObject::ckEmit(jResp)

    respStatusCode.i = CkHttpResponse::ckStatusCode(resp)
    Debug "Response Status Code = " + Str(respStatusCode)
    If respStatusCode >= 400
        Debug "Response Header:"
        Debug CkHttpResponse::ckHeader(resp)
        Debug "Failed."
        CkHttp::ckDispose(http)
        CkHttpRequest::ckDispose(req)
        CkBinData::ckDispose(bd)
        CkHttpResponse::ckDispose(resp)
        CkStringBuilder::ckDispose(sbResponseBody)
        CkJsonObject::ckDispose(jResp)
        ProcedureReturn
    EndIf

    ; Sample JSON response:
    ; (Sample code for parsing the JSON response is shown below)

    ; {
    ;   "id": "<20210429234809.1.2D550E1C94D3D98F@sandbox0e542e4c577f4bbb98c8bf6b6bca727b.mailgun.org>",
    ;   "message": "Queued. Thank you."
    ; }

    ; Sample code for parsing the JSON response...
    ; Use the following online tool to generate parsing code from sample JSON:
    ; Generate Parsing Code from JSON

    id.s = CkJsonObject::ckStringOf(jResp,"id")
    message.s = CkJsonObject::ckStringOf(jResp,"message")


    CkHttp::ckDispose(http)
    CkHttpRequest::ckDispose(req)
    CkBinData::ckDispose(bd)
    CkHttpResponse::ckDispose(resp)
    CkStringBuilder::ckDispose(sbResponseBody)
    CkJsonObject::ckDispose(jResp)


    ProcedureReturn
EndProcedure