VBScript

WhatsApp - Send a Previously Uploaded Media Message

Demonstrates how to send a media message where the media content was previously uploaded. VBScript

Dim fso, outFile
Set fso = CreateObject("Scripting.FileSystemObject")
'Create a Unicode (utf-16) output text file.
Set outFile = fso.CreateTextFile("output.txt", True, True)

success = 0

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

set http = CreateObject("Chilkat.Http")

' 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": {
'      "id": "your-media-id",
'       "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": {
'     "id": "your-media-id",
'     "caption": "your-image-caption"
'   }
' }

set json = CreateObject("Chilkat.JsonObject")
success = json.UpdateString("recipient_type","individual-or-group")
success = json.UpdateString("to","whatsapp-id-or-group-id")
success = json.UpdateString("type","image")
success = json.UpdateString("image.id","your-media-id")
success = json.UpdateString("image.caption","your-image-caption")

' Adds the "Authorization: Bearer your-auth-token" header.
http.AuthToken = "your-auth-token"

set resp = CreateObject("Chilkat.HttpResponse")
success = http.HttpJson("POST","https://example.com/v1/messages",json,"application/json",resp)
If (success = 0) Then
    outFile.WriteLine(http.LastErrorText)
    WScript.Quit
End If

set sbResponseBody = CreateObject("Chilkat.StringBuilder")
success = resp.GetBodySb(sbResponseBody)
set jResp = CreateObject("Chilkat.JsonObject")
success = jResp.LoadSb(sbResponseBody)
jResp.EmitCompact = 0

outFile.WriteLine("Response Body:")
outFile.WriteLine(jResp.Emit())

respStatusCode = resp.StatusCode
outFile.WriteLine("Response Status Code = " & respStatusCode)
If (respStatusCode >= 400) Then
    outFile.WriteLine("Response Header:")
    outFile.WriteLine(resp.Header)
    outFile.WriteLine("Failed.")
    WScript.Quit
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
count_i = jResp.SizeOfArray("messages")
Do While i < count_i
    jResp.I = i
    id = jResp.StringOf("messages[i].id")
    i = i + 1
Loop

outFile.Close