Chilkat Online Tools

C / Zoho CRM REST APIs / Refresh Access Tokens

Back to Collection Items

#include <C_CkHttp.h>
#include <C_CkHttpRequest.h>
#include <C_CkJsonObject.h>
#include <C_CkHttpResponse.h>

void ChilkatSample(void)
    {
    HCkHttp http;
    BOOL success;
    HCkHttpRequest req;
    HCkJsonObject jsonFormData1;
    HCkJsonObject jsonFormData2;
    HCkJsonObject jsonFormData3;
    HCkHttpResponse resp;

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

    http = CkHttp_Create();

    req = CkHttpRequest_Create();
    CkHttpRequest_putHttpVerb(req,"POST");
    CkHttpRequest_putPath(req,"/oauth/v2/token");
    CkHttpRequest_putContentType(req,"multipart/form-data");

    jsonFormData1 = CkJsonObject_Create();
    CkHttpRequest_AddStringForUpload2(req,"client_id","",jsonFormData1,"utf-8","application/json");

    jsonFormData2 = CkJsonObject_Create();
    CkHttpRequest_AddStringForUpload2(req,"client_secret","",jsonFormData2,"utf-8","application/json");

    jsonFormData3 = CkJsonObject_Create();
    CkHttpRequest_AddStringForUpload2(req,"refresh_token","",jsonFormData3,"utf-8","application/json");

    CkHttpRequest_AddParam(req,"grant_type","{{client-id}}{{client-secret}}{{refresh-token}}refresh_token");

    resp = CkHttp_SynchronousRequest(http,"domain.com",443,TRUE,req);
    if (CkHttp_getLastMethodSuccess(http) == FALSE) {
        printf("%s\n",CkHttp_lastErrorText(http));
        CkHttp_Dispose(http);
        CkHttpRequest_Dispose(req);
        CkJsonObject_Dispose(jsonFormData1);
        CkJsonObject_Dispose(jsonFormData2);
        CkJsonObject_Dispose(jsonFormData3);
        return;
    }

    printf("%d\n",CkHttpResponse_getStatusCode(resp));
    printf("%s\n",CkHttpResponse_bodyStr(resp));
    CkHttpResponse_Dispose(resp);


    CkHttp_Dispose(http);
    CkHttpRequest_Dispose(req);
    CkJsonObject_Dispose(jsonFormData1);
    CkJsonObject_Dispose(jsonFormData2);
    CkJsonObject_Dispose(jsonFormData3);

    }

Curl Command

curl -X POST
	--form 'client_id={{client-id}}'
	--form 'client_secret={{client-id}}{{client-secret}}'
	--form 'refresh_token={{client-id}}{{client-secret}}{{refresh-token}}'
	--form 'grant_type={{client-id}}{{client-secret}}{{refresh-token}}refresh_token'
https://domain.com/oauth/v2/token

Postman Collection Item JSON

{
  "name": "Refresh Access Tokens",
  "event": [
    {
      "listen": "test",
      "script": {
        "exec": [
          "if (responseCode.code === 200)",
          "{",
          "    var jsonData = JSON.parse(responseBody);",
          "",
          "    pm.environment.set(\"access-token\", jsonData.access_token);",
          "    pm.environment.set(\"expiry-time\", Date.now() + parseInt(jsonData.expires_in));",
          "}"
        ],
        "type": "text/javascript"
      }
    }
  ],
  "request": {
    "auth": {
      "type": "noauth"
    },
    "method": "POST",
    "header": [
    ],
    "body": {
      "mode": "formdata",
      "formdata": [
        {
          "key": "client_id",
          "value": "{{client-id}}",
          "type": "text"
        },
        {
          "key": "client_secret",
          "value": "{{client-secret}}",
          "type": "text"
        },
        {
          "key": "refresh_token",
          "value": "{{refresh-token}}",
          "type": "text"
        },
        {
          "key": "grant_type",
          "value": "refresh_token",
          "type": "text"
        }
      ]
    },
    "url": {
      "raw": "{{accounts-url}}/oauth/v2/token",
      "host": [
        "{{accounts-url}}"
      ],
      "path": [
        "oauth",
        "v2",
        "token"
      ]
    },
    "description": "### Step 4: Refresh Access Tokens\n\nAs obvious as it is, refresh tokens are used to generate new access tokens when the current ones are past the expiry time."
  },
  "response": [
  ]
}