VB.NET

WhatsApp - Change a User Password

Demonstrates how to change the password for a WhatsApp Business API user account. VB.NET

Dim success As Boolean = False

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

Dim http As New Chilkat.Http

' Implements the following CURL command:

' curl -X PUT https://example.com/v1/users/username \
'   -H "Authorization: Bearer your-auth-token" \
'   -d '{"password": "new-password"}'

' The following JSON is sent in the request body.

' {
'   "password": "new-password"
' }

Dim json As New Chilkat.JsonObject
json.UpdateString("password","new-password")

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

Dim sbRequestBody As New Chilkat.StringBuilder
json.EmitSb(sbRequestBody)

Dim resp As New Chilkat.HttpResponse
success = http.HttpSb("PUT","https://example.com/v1/users/username",sbRequestBody,"utf-8","application/json",resp)
If (success = False) Then
    Debug.WriteLine(http.LastErrorText)
    Exit Sub
End If


Dim sbResponseBody As New Chilkat.StringBuilder
resp.GetBodySb(sbResponseBody)
Dim jResp As New Chilkat.JsonObject
jResp.LoadSb(sbResponseBody)
jResp.EmitCompact = False

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

Dim respStatusCode As Integer = resp.StatusCode
Debug.WriteLine("Response Status Code = " & respStatusCode)
If (respStatusCode >= 400) Then
    Debug.WriteLine("Response Header:")
    Debug.WriteLine(resp.Header)
    Debug.WriteLine("Failed.")
    Exit Sub
End If


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

' {
'   "users": [
'     {
'       "username": "username"
'     }
'   ]
' }

' Sample code for parsing the JSON response...



Dim username As String

Dim i As Integer = 0
Dim count_i As Integer = jResp.SizeOfArray("users")
While i < count_i
    jResp.I = i
    username = jResp.StringOf("users[i].username")
    i = i + 1
End While