(VB.NET) Moody's REST API - Get OAuth2 Token

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Note: This example requires Chilkat v11.0.0 or greater.

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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

Dim req As New Chilkat.HttpRequest
req.AddParam("grant_type","password")
req.AddParam("scope","api/ratings api/addin rest")
req.AddParam("username","my_username")
req.AddParam("password","my_password")
' I have no idea of where to get the client_id or client_secret.
' When you create a Moody's App, it only provides an "API Key".
req.AddParam("client_id","my_client_id")
req.AddParam("client_secret","my_client_secret")

req.HttpVerb = "POST"
req.ContentType = "application/x-www-form-urlencoded"

Dim resp As New Chilkat.HttpResponse
success = http.HttpReq("https://api.moodys.com/OAuth/Token",req,resp)
If (success = False) Then
    Debug.WriteLine(http.LastErrorText)
    Exit Sub
End If


Debug.WriteLine("status code = " & resp.StatusCode)
Dim responseBody As String = resp.BodyStr
Debug.WriteLine(responseBody)

' Save the JSON to a file for future requests.
If (resp.StatusCode = 200) Then
    Dim fac As New Chilkat.FileAccess
    fac.WriteEntireTextFile("qa_data/tokens/moodys.json",resp.BodyStr,"utf-8",False)
End If