PowerBuilder
Mailgun Send Send HTML Email with Attachments and HTML Images

Sends an HTML email with images and attachments.
Chilkat PowerBuilder Downloads

PowerBuilder
integer li_rc
integer li_Success
oleobject loo_Http
oleobject loo_Req
oleobject loo_Bd
oleobject loo_Resp
oleobject loo_SbResponseBody
oleobject loo_JResp
integer li_RespStatusCode
string ls_Id
string ls_Message

li_Success = 0

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

loo_Http = create oleobject
li_rc = loo_Http.ConnectToNewObject("Chilkat.Http")
if li_rc < 0 then
    destroy loo_Http
    MessageBox("Error","Connecting to COM object failed")
    return
end if

loo_Http.Login = "api"
loo_Http.Password = "sending_api_key"//  Replace with your actual sending API key.

loo_Req = create oleobject
li_rc = loo_Req.ConnectToNewObject("Chilkat.HttpRequest")

loo_Req.HttpVerb = "POST"
loo_Req.Path = "/v3/YOUR_DOMAIN_NAME/messages"
loo_Req.ContentType = "multipart/form-data"

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

// An a attachd file
loo_Bd = create oleobject
li_rc = loo_Bd.ConnectToNewObject("Chilkat.BinData")

li_Success = loo_Bd.LoadFile("qa_data/hamlet.zip")
if li_Success = 0 then
    Write-Debug "Failed to load file attachment."
    destroy loo_Http
    destroy loo_Req
    destroy loo_Bd
    return
end if

loo_Req.AddBdForUpload("attachment","hamlet.zip",loo_Bd,"application/zip")

// add an image as CID
li_Success = loo_Bd.LoadFile("qa_data/jpg/starfish.jpg")
if li_Success = 0 then
    Write-Debug "Failed to load HTML image."
    destroy loo_Http
    destroy loo_Req
    destroy loo_Bd
    return
end if

loo_Req.AddBdForUpload("inline","cidStarfish.jpg",loo_Bd,"image/jpeg")

loo_Resp = create oleobject
li_rc = loo_Resp.ConnectToNewObject("Chilkat.HttpResponse")

li_Success = loo_Http.HttpSReq("api.mailgun.net",443,1,loo_Req,loo_Resp)
if li_Success = 0 then
    Write-Debug loo_Http.LastErrorText
    destroy loo_Http
    destroy loo_Req
    destroy loo_Bd
    destroy loo_Resp
    return
end if

loo_SbResponseBody = create oleobject
li_rc = loo_SbResponseBody.ConnectToNewObject("Chilkat.StringBuilder")

loo_Resp.GetBodySb(loo_SbResponseBody)
loo_JResp = create oleobject
li_rc = loo_JResp.ConnectToNewObject("Chilkat.JsonObject")

loo_JResp.LoadSb(loo_SbResponseBody)
loo_JResp.EmitCompact = 0

Write-Debug "Response Body:"
Write-Debug loo_JResp.Emit()

li_RespStatusCode = loo_Resp.StatusCode
Write-Debug "Response Status Code = " + string(li_RespStatusCode)
if li_RespStatusCode >= 400 then
    Write-Debug "Response Header:"
    Write-Debug loo_Resp.Header
    Write-Debug "Failed."
    destroy loo_Http
    destroy loo_Req
    destroy loo_Bd
    destroy loo_Resp
    destroy loo_SbResponseBody
    destroy loo_JResp
    return
end if

// 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

ls_Id = loo_JResp.StringOf("id")
ls_Message = loo_JResp.StringOf("message")


destroy loo_Http
destroy loo_Req
destroy loo_Bd
destroy loo_Resp
destroy loo_SbResponseBody
destroy loo_JResp