Chilkat Online Tools

Objective-C / Zoho CRM REST APIs / Refresh Access Tokens

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#import <CkoHttp.h>
#import <CkoHttpRequest.h>
#import <CkoJsonObject.h>
#import <CkoHttpResponse.h>

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

CkoHttp *http = [[CkoHttp alloc] init];
BOOL success;

CkoHttpRequest *req = [[CkoHttpRequest alloc] init];
req.HttpVerb = @"POST";
req.Path = @"/oauth/v2/token";
req.ContentType = @"multipart/form-data";

CkoJsonObject *jsonFormData1 = [[CkoJsonObject alloc] init];
[req AddStringForUpload2: @"client_id" filename: @"" strData: jsonFormData1 charset: @"utf-8" contentType: @"application/json"];

CkoJsonObject *jsonFormData2 = [[CkoJsonObject alloc] init];
[req AddStringForUpload2: @"client_secret" filename: @"" strData: jsonFormData2 charset: @"utf-8" contentType: @"application/json"];

CkoJsonObject *jsonFormData3 = [[CkoJsonObject alloc] init];
[req AddStringForUpload2: @"refresh_token" filename: @"" strData: jsonFormData3 charset: @"utf-8" contentType: @"application/json"];

[req AddParam: @"grant_type" value: @"{{client-id}}{{client-secret}}{{refresh-token}}refresh_token"];

CkoHttpResponse *resp = [http SynchronousRequest: @"domain.com" port: [NSNumber numberWithInt: 443] ssl: YES req: req];
if (http.LastMethodSuccess == NO) {
    NSLog(@"%@",http.LastErrorText);
    return;
}

NSLog(@"%d",[resp.StatusCode intValue]);
NSLog(@"%@",resp.BodyStr);

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": [
  ]
}