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(DataFlex) citi Developer OAuth2 Client Credentials GrantGet 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). Note: This example requires Chilkat v11.0.0 or greater. For more information, see https://sandbox.developerhub.citi.com/api/united-states/retail-bank/identity-security/authorize/documentation
Use ChilkatAx-win32.pkg Procedure Test Boolean iSuccess Handle hoHttp Variant vReq Handle hoReq Variant vResp Handle hoResp Variant vSbResponseBody Handle hoSbResponseBody Handle hoJResp Integer iRespStatusCode String sToken_type String sAccess_token Integer iExpires_in Integer iConsented_on String sScope String sTemp1 Move False To iSuccess // This example assumes the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. Get Create (RefClass(cComChilkatHttp)) To hoHttp If (Not(IsComObjectCreated(hoHttp))) Begin Send CreateComObject of hoHttp End // 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' Set ComLogin Of hoHttp To "client-id" Set ComPassword Of hoHttp To "client-secret" Get Create (RefClass(cComChilkatHttpRequest)) To hoReq If (Not(IsComObjectCreated(hoReq))) Begin Send CreateComObject of hoReq End Set ComHttpVerb Of hoReq To "POST" Set ComPath Of hoReq To "/gcb/api/clientCredentials/oauth2/token/us/gcb" Set ComContentType Of hoReq To "application/x-www-form-urlencoded" Send ComAddParam To hoReq "grant_type" "client_credentials" Send ComAddParam To hoReq "scope" "/api" Send ComAddHeader To hoReq "accept" "application/json" Get Create (RefClass(cComChilkatHttpResponse)) To hoResp If (Not(IsComObjectCreated(hoResp))) Begin Send CreateComObject of hoResp End Get pvComObject of hoReq to vReq Get pvComObject of hoResp to vResp Get ComHttpReq Of hoHttp "https://sandbox.apihub.citi.com/gcb/api/clientCredentials/oauth2/token/us/gcb" vReq vResp To iSuccess If (iSuccess = False) Begin Get ComLastErrorText Of hoHttp To sTemp1 Showln sTemp1 Procedure_Return End Get Create (RefClass(cComChilkatStringBuilder)) To hoSbResponseBody If (Not(IsComObjectCreated(hoSbResponseBody))) Begin Send CreateComObject of hoSbResponseBody End Get pvComObject of hoSbResponseBody to vSbResponseBody Get ComGetBodySb Of hoResp vSbResponseBody To iSuccess Get Create (RefClass(cComChilkatJsonObject)) To hoJResp If (Not(IsComObjectCreated(hoJResp))) Begin Send CreateComObject of hoJResp End Get pvComObject of hoSbResponseBody to vSbResponseBody Get ComLoadSb Of hoJResp vSbResponseBody To iSuccess Set ComEmitCompact Of hoJResp To False Showln "Response Body:" Get ComEmit Of hoJResp To sTemp1 Showln sTemp1 Get ComStatusCode Of hoResp To iRespStatusCode Showln "Response Status Code = " iRespStatusCode If (iRespStatusCode >= 400) Begin Showln "Response Header:" Get ComHeader Of hoResp To sTemp1 Showln sTemp1 Showln "Failed." Procedure_Return End Get ComWriteFile Of hoJResp "qa_data/tokens/citi_client_credentials.json" To iSuccess If (iSuccess = False) Begin Showln "Failed to save JSON access token file." Procedure_Return End // 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 Get ComStringOf Of hoJResp "token_type" To sToken_type Get ComStringOf Of hoJResp "access_token" To sAccess_token Get ComIntOf Of hoJResp "expires_in" To iExpires_in Get ComIntOf Of hoJResp "consented_on" To iConsented_on Get ComStringOf Of hoJResp "scope" To sScope End_Procedure |
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