VBScript

citi Developer OAuth2 Client Credentials Grant

See more OAuth2 Examples

Get access token for your application credentials. You can use this for citi APIs which do not require customer credential verification and consent (e.g. Onboarding). 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 --request POST \
'   --url https://sandbox.apihub.citi.com/gcb/api/clientCredentials/oauth2/token/us/gcb \
'   --header 'accept: application/json' \
'   --user client-id:client-secret \
'   --header 'content-type: application/x-www-form-urlencoded' \
'   --data 'grant_type=client_credentials&scope=%2Fapi'

http.Login = "client-id"
http.Password = "client-secret"

set req = CreateObject("Chilkat.HttpRequest")
req.HttpVerb = "POST"
req.Path = "/gcb/api/clientCredentials/oauth2/token/us/gcb"
req.ContentType = "application/x-www-form-urlencoded"
req.AddParam "grant_type","client_credentials"
req.AddParam "scope","/api"
req.AddHeader "accept","application/json"

set resp = CreateObject("Chilkat.HttpResponse")
success = http.HttpReq("https://sandbox.apihub.citi.com/gcb/api/clientCredentials/oauth2/token/us/gcb",req,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

success = jResp.WriteFile("qa_data/tokens/citi_client_credentials.json")
If (success = 0) Then
    outFile.WriteLine("Failed to save JSON access token file.")
    WScript.Quit
End If

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

'  {
'    "token_type": "bearer",
'    "access_token": "AAIkMjdh ... 3fsWb7zJ0s",
'    "expires_in": 1800,
'    "consented_on": 1584817860,
'    "scope": "/api"
'  }

'  Sample code for parsing the JSON response...
'  Use the following online tool to generate parsing code from sample JSON:
'  Generate Parsing Code from JSON

token_type = jResp.StringOf("token_type")
access_token = jResp.StringOf("access_token")
expires_in = jResp.IntOf("expires_in")
consented_on = jResp.IntOf("consented_on")
scope = jResp.StringOf("scope")

outFile.Close