(Lianja) WhatsApp - Upload Media

Demonstrates how to upload media to the WhatsApp Business API client. The POST body must contain the binary media data and the Content-Type header must be set to the type of the media being uploaded.

For more information, see https://developers.facebook.com/docs/whatsapp/api/media

Chilkat Lianja Extension Download Chilkat Lianja Extension

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

loHttp = createobject("CkHttp")

// Implements the following CURL command:

// curl -X POST \
// https://your-webapp-hostname:your-webapp-port/v1/media \
// -H 'Authorization: Bearer your-auth-token' \ 
// -H 'Content-Type: image/jpeg'
// --data-binary @your-file-path

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

loBdRequestBody = createobject("CkBinData")
llSuccess = loBdRequestBody.LoadFile("your-file-path")
if (llSuccess <> .T.) then
    ? "Failed to load your-file-path"
    release loHttp
    release loBdRequestBody
    return
endif

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

loResp = loHttp.PBinaryBd("POST","https://your-webapp-hostname:your-webapp-port/v1/media",loBdRequestBody,"image/jpeg",.F.,.F.)
if (loHttp.LastMethodSuccess = .F.) then
    ? loHttp.LastErrorText
    release loHttp
    release loBdRequestBody
    return
endif

loSbResponseBody = createobject("CkStringBuilder")
loResp.GetBodySb(loSbResponseBody)
loJResp = createobject("CkJsonObject")
loJResp.LoadSb(loSbResponseBody)
loJResp.EmitCompact = .F.

? "Response Body:"
? loJResp.Emit()

lnRespStatusCode = loResp.StatusCode
? "Response Status Code = " + str(lnRespStatusCode)
if (lnRespStatusCode >= 400) then
    ? "Response Header:"
    ? loResp.Header
    ? "Failed."
    release loResp
    release loHttp
    release loBdRequestBody
    release loSbResponseBody
    release loJResp
    return
endif

release loResp

// 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
lnCount_i = loJResp.SizeOfArray("messages")
do while i < lnCount_i
    loJResp.I = i
    lcId = loJResp.StringOf("messages[i].id")
    i = i + 1
enddo


release loHttp
release loBdRequestBody
release loSbResponseBody
release loJResp