(AutoIt) Auth0 Server-to-Server Access Token (Client Credentials flow)

Demonstrates how to obtain an Auth0 access token using client credentials (client_id and client_secret).

This is just a matter of duplicating this CURL command:

curl --request POST
  --url 'https://chilkat.auth0.com/oauth/token' \
  --header 'content-type: application/json' \
  --data '{"grant_type":"client_credentials","client_id": "xxxx","client_secret": "xxxx","audience": "https://api.example.com/geocoding/v1/"}'

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

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

; We want to duplicate this curl command:
; 
; curl --request POST
;   --url 'https://chilkat.auth0.com/oauth/token' \
;   --header 'content-type: application/json' \
;   --data '{"grant_type":"client_credentials","client_id": "my_client_id","client_secret": "my_client_secret","audience": "https://api.example.com/geocoding/v1/"}'

; Build the JSON body of the request.
$oJson = ObjCreate("Chilkat.JsonObject")
$oJson.UpdateString("grant_type","client_credentials")
$oJson.UpdateString("client_id","AUTH0-CLIENT-ID")
$oJson.UpdateString("client_secret","AUTH0-CLIENT-SECRET")
$oJson.UpdateString("audience","https://api.example.com/geocoding/v1/")

; IMPORTANT: You would use your own url.  You would not use "chilkat.auth0.com".  
; Instead you would use "your_name.auth0.com"
$oHttp = ObjCreate("Chilkat.Http")
Local $oResp = $oHttp.PostJson3("https://chilkat.auth0.com/oauth/token","application/json",$oJson)
If ($oHttp.LastMethodSuccess <> True) Then
    ConsoleWrite($oHttp.LastErrorText & @CRLF)
    Exit
EndIf

; A 200 response status code indicates success.  In the success case, the response body
; contains the JSON access token, such as: 
; {
;   "access_token": "eyJz93a...k4laUWw",
;   "token_type":"Bearer",
;   "expires_in":86400
; }
; 

ConsoleWrite("response status code = " & $oResp.StatusCode & @CRLF)

; The repsonse is JSON if successful and also JSON for errors.
$oJsonResp = ObjCreate("Chilkat.JsonObject")
$oJsonResp.EmitCompact = False
$oJsonResp.Load($oResp.BodyStr)

If ($oResp.StatusCode <> 200) Then
    ; The response body contains error information in JSON format.
    ConsoleWrite($oJsonResp.Emit() & @CRLF)

    ; An example of an error response:
    ; 		{
    ; 		  "error": "access_denied",
    ; 		  "error_description": "Client is not authorized to access \"https://api.example.com/geocoding/v1/\". You might probably want to create a \"client-grant\" associated to this API. See: https://auth0.com/docs/api/v2#!/Client_Grants/post_client_grants"
    ; 		}
    Exit
EndIf

ConsoleWrite("Success!" & @CRLF)
ConsoleWrite($oJsonResp.Emit() & @CRLF)

; A successful JSON response body looks like this:

; {
;   "access_token": "eyJz93a...k4laUWw",
;   "token_type":"Bearer",
;   "expires_in":86400
; }