PowerBuilder

WhatsApp - Send a Linked Media Message

Demonstrates how to send a media message where the media content is a link to an external URL. This example demonstrates sending an image (JPG) media message. PowerBuilder

integer li_rc
integer li_Success
oleobject loo_Http
oleobject loo_Json
oleobject loo_Resp
oleobject loo_SbResponseBody
oleobject loo_JResp
integer li_RespStatusCode
string ls_Id
integer i
integer li_Count_i

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

// Implements the following CURL command:

// curl -X POST https://example.com/v1/messages \
//   -H "Authorization: Bearer your-auth-token" \
//   -d '
// {
//     "recipient_type": "individual-or-group",
//     "to": "whatsapp-id-or-group-id",
//     "type": "image",
//     "image": {
//       "link": "http(s)://the-url",
//       "provider": {
//         "name" : "provider-name"
//       },
//     "caption": "your-image-caption"
//   }
// }'

// Use the following online tool to generate HTTP code from a CURL command
// Convert a cURL Command to HTTP Source Code

// Use this online tool to generate code from sample JSON:
// Generate Code to Create JSON

// The following JSON is sent in the request body.

// {
//   "recipient_type": "individual-or-group",
//   "to": "whatsapp-id-or-group-id",
//   "type": "image",
//   "image": {
//     "link": "http(s)://the-url",
//     "provider": {
//       "name": "provider-name"
//     },
//     "caption": "your-image-caption"
//   }
// }

loo_Json = create oleobject
li_rc = loo_Json.ConnectToNewObject("Chilkat.JsonObject")

loo_Json.UpdateString("recipient_type","individual-or-group")
loo_Json.UpdateString("to","whatsapp-id-or-group-id")
loo_Json.UpdateString("type","image")
loo_Json.UpdateString("image.link","http(s)://the-url")
loo_Json.UpdateString("image.provider.name","provider-name")
loo_Json.UpdateString("image.caption","your-image-caption")

// Adds the "Authorization: Bearer your-auth-token" header.
loo_Http.AuthToken = "your-auth-token"

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

li_Success = loo_Http.HttpJson("POST","https://example.com/v1/messages",loo_Json,"application/json",loo_Resp)
if li_Success = 0 then
    Write-Debug loo_Http.LastErrorText
    destroy loo_Http
    destroy loo_Json
    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_Json
    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)

// {
//   "messages": [
//     {
//       "id": "gBEGkYiEB1VXAglK1ZEqA1YKPrU"
//     }
//   ]
// }

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

i = 0
li_Count_i = loo_JResp.SizeOfArray("messages")
do while i < li_Count_i
    loo_JResp.I = i
    ls_Id = loo_JResp.StringOf("messages[i].id")
    i = i + 1
loop


destroy loo_Http
destroy loo_Json
destroy loo_Resp
destroy loo_SbResponseBody
destroy loo_JResp