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(PowerBuilder) citi Developer OAuth2 Client Credentials Grant

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).

For more information, see https://sandbox.developerhub.citi.com/api/united-states/retail-bank/identity-security/authorize/documentation

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

integer li_rc
oleobject loo_Http
integer li_Success
oleobject loo_Req
oleobject loo_Resp
oleobject loo_SbResponseBody
oleobject loo_JResp
integer li_RespStatusCode
string ls_Token_type
string ls_Access_token
integer li_Expires_in
integer li_Consented_on
string ls_Scope

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

loo_Http = create oleobject
li_rc = loo_Http.ConnectToNewObject("Chilkat_9_5_0.Http")
if li_rc < 0 then
    destroy loo_Http
    MessageBox("Error","Connecting to COM object failed")
    return
end if

// 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'

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

loo_Req = create oleobject
li_rc = loo_Req.ConnectToNewObject("Chilkat_9_5_0.HttpRequest")

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

loo_Resp = loo_Http.PostUrlEncoded("https://sandbox.apihub.citi.com/gcb/api/clientCredentials/oauth2/token/us/gcb",loo_Req)
if loo_Http.LastMethodSuccess = 0 then
    Write-Debug loo_Http.LastErrorText
    destroy loo_Http
    destroy loo_Req
    return
end if

loo_SbResponseBody = create oleobject
li_rc = loo_SbResponseBody.ConnectToNewObject("Chilkat_9_5_0.StringBuilder")

loo_Resp.GetBodySb(loo_SbResponseBody)
loo_JResp = create oleobject
li_rc = loo_JResp.ConnectToNewObject("Chilkat_9_5_0.JsonObject")

loo_JResp.LoadSb(loo_SbResponseBody)
loo_JResp.EmitCompact = 0

Write-Debug "Response Body:"
Write-Debug loo_JResp.Emit()

li_RespStatusCode = loo_Resp.StatusCode
Write-Debug "Response Status Code = " + string(li_RespStatusCode)
if li_RespStatusCode >= 400 then
    Write-Debug "Response Header:"
    Write-Debug loo_Resp.Header
    Write-Debug "Failed."
    destroy loo_Resp
    destroy loo_Http
    destroy loo_Req
    destroy loo_SbResponseBody
    destroy loo_JResp
    return
end if

destroy loo_Resp

li_Success = loo_JResp.WriteFile("qa_data/tokens/citi_client_credentials.json")
if li_Success = 0 then
    Write-Debug "Failed to save JSON access token file."
    destroy loo_Http
    destroy loo_Req
    destroy loo_SbResponseBody
    destroy loo_JResp
    return
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

ls_Token_type = loo_JResp.StringOf("token_type")
ls_Access_token = loo_JResp.StringOf("access_token")
li_Expires_in = loo_JResp.IntOf("expires_in")
li_Consented_on = loo_JResp.IntOf("consented_on")
ls_Scope = loo_JResp.StringOf("scope")


destroy loo_Http
destroy loo_Req
destroy loo_SbResponseBody
destroy loo_JResp

 

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