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phpAx / ForgeRock Identity Cloud Collection / Step 3: Exchange the Authentication Code for an Access Token

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<?php

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

// For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Http')
$http = new COM("Chilkat.Http");

// For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.HttpRequest')
$req = new COM("Chilkat.HttpRequest");
$req->AddParam('grant_type','authorization_code');

// For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.JsonObject')
$jsonParam2 = new COM("Chilkat.JsonObject");
$req->AddParam('code',$jsonParam2->emit());

// For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.JsonObject')
$jsonParam3 = new COM("Chilkat.JsonObject");
$req->AddParam('client_id',$jsonParam3->emit());

// For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.JsonObject')
$jsonParam4 = new COM("Chilkat.JsonObject");
$req->AddParam('client_secret',$jsonParam4->emit());

// For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.JsonObject')
$jsonParam5 = new COM("Chilkat.JsonObject");
$req->AddParam('redirect_uri',$jsonParam5->emit());

$req->AddHeader('Authorization','Bearer <access_token>');

// resp is a Chilkat.HttpResponse
$resp = $http->PostUrlEncoded('https://<tenant-name>.forgeblocks.com/am/oauth2/realms/root/realms/alpha/access_token',$req);
if ($http->LastMethodSuccess == 0) {
    print $http->LastErrorText . "\n";
    exit;
}

// For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.StringBuilder')
$sbResponseBody = new COM("Chilkat.StringBuilder");
$resp->GetBodySb($sbResponseBody);

// For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.JsonObject')
$jResp = new COM("Chilkat.JsonObject");
$jResp->LoadSb($sbResponseBody);
$jResp->EmitCompact = 0;

print 'Response Body:' . "\n";
print $jResp->emit() . "\n";

$respStatusCode = $resp->StatusCode;
print 'Response Status Code = ' . $respStatusCode . "\n";
if ($respStatusCode >= 400) {
    print 'Response Header:' . "\n";
    print $resp->Header . "\n";
    print 'Failed.' . "\n";

    exit;
}

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

// {
//   "access_token": "eyJ0eXAiJ9.eyJzdWIiOiJkZPXXcM",
//   "refresh_token": "eyJ0eXAiOiJKV1QiLC.eyl0VHJXpdhFiWDw",
//   "scope": "edit",
//   "token_type": "Bearer",
//   "expires_in": 3599
// }

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

$access_token = $jResp->stringOf('access_token');
$refresh_token = $jResp->stringOf('refresh_token');
$scope = $jResp->stringOf('scope');
$token_type = $jResp->stringOf('token_type');
$expires_in = $jResp->IntOf('expires_in');

?>

Curl Command

curl -X POST
	-H "Authorization: Bearer <access_token>"
	-H "Content-Type: application/x-www-form-urlencoded"
	--data-urlencode 'grant_type=authorization_code'
	--data-urlencode 'code={{authorization_code}}'
	--data-urlencode 'client_id={{postmanConfidentialClientId}}'
	--data-urlencode 'client_secret={{postmanClientSecret}}'
	--data-urlencode 'redirect_uri={{redirect_uri}}'
https://<tenant-name>.forgeblocks.com/am/oauth2/realms/root/realms/alpha/access_token

Postman Collection Item JSON

{
  "name": "Step 3: Exchange the Authentication Code for an Access Token",
  "event": [
    {
      "listen": "prerequest",
      "script": {
        "exec": [
          ""
        ],
        "type": "text/javascript"
      }
    },
    {
      "listen": "test",
      "script": {
        "exec": [
          "var jsonData = JSON.parse(responseBody);",
          "",
          "if(jsonData.access_token && jsonData.access_token != \"\")",
          "{",
          "    pm.globals.set(\"access_token\", jsonData.access_token);",
          "}",
          "",
          "if(jsonData.refresh_token && jsonData.refresh_token != \"\")",
          "{",
          "    pm.globals.set(\"refresh_token\", jsonData.refresh_token);",
          "}",
          "",
          "// Tests",
          "",
          "pm.test(\"Status code is 200\", () => {",
          "  pm.expect(pm.response.code).to.eql(200);",
          "});",
          "",
          "pm.test(\"Response contains access_token\", function () {",
          "    pm.expect(jsonData.access_token).to.be.a(\"string\");",
          "});",
          "",
          "pm.test(\"Response contains refresh_token\", function () {",
          "    pm.expect(jsonData.refresh_token).to.be.a(\"string\");",
          "});",
          "",
          ""
        ],
        "type": "text/javascript"
      }
    }
  ],
  "request": {
    "method": "POST",
    "header": [
      {
        "key": "Content-Type",
        "name": "Content-Type",
        "value": "application/x-www-form-urlencoded",
        "type": "text"
      }
    ],
    "body": {
      "mode": "urlencoded",
      "urlencoded": [
        {
          "key": "grant_type",
          "value": "authorization_code",
          "description": "Grant types this client will support and use.",
          "type": "text"
        },
        {
          "key": "code",
          "value": "{{authorization_code}}",
          "description": "The authentication code.",
          "type": "text"
        },
        {
          "key": "client_id",
          "value": "{{postmanConfidentialClientId}}",
          "description": "The ID of the Confidential OAuth Client.",
          "type": "text"
        },
        {
          "key": "client_secret",
          "value": "{{postmanClientSecret}}",
          "description": "The secret of the Confidential OAuth Client.",
          "type": "text"
        },
        {
          "key": "redirect_uri",
          "value": "{{redirect_uri}}",
          "description": "The complete URI to which client redirects the user if the request is successful.",
          "type": "text"
        }
      ]
    },
    "url": {
      "raw": "{{amUrl}}/oauth2{{realm}}/access_token",
      "host": [
        "{{amUrl}}"
      ],
      "path": [
        "oauth2{{realm}}",
        "access_token"
      ]
    },
    "description": "Authenticate with the authorization server using the details of the confidential client and the authentication code recieved in the previous call.\n"
  },
  "response": [
    {
      "name": "Example",
      "originalRequest": {
        "method": "POST",
        "header": [
          {
            "key": "Content-Type",
            "name": "Content-Type",
            "value": "application/x-www-form-urlencoded",
            "type": "text"
          }
        ],
        "body": {
          "mode": "urlencoded",
          "urlencoded": [
            {
              "key": "grant_type",
              "value": "authorization_code",
              "description": "Grant types this client will support and use.",
              "type": "text"
            },
            {
              "key": "code",
              "value": "{{authorization_code}}",
              "description": "The authentication code.",
              "type": "text"
            },
            {
              "key": "client_id",
              "value": "{{postmanConfidentialClientId}}",
              "description": "The ID of the Confidential OAuth Client.",
              "type": "text"
            },
            {
              "key": "client_secret",
              "value": "{{postmanClientSecret}}",
              "description": "The secret of the Confidential OAuth Client.",
              "type": "text"
            },
            {
              "key": "redirect_uri",
              "value": "{{redirect_uri}}",
              "description": "The complete URI to which client redirects the user if the request is successful.",
              "type": "text"
            }
          ]
        },
        "url": {
          "raw": "{{amUrl}}/oauth2{{realm}}/access_token",
          "host": [
            "{{amUrl}}"
          ],
          "path": [
            "oauth2{{realm}}",
            "access_token"
          ]
        }
      },
      "status": "OK",
      "code": 200,
      "_postman_previewlanguage": "json",
      "header": [
        {
          "key": "X-Frame-Options",
          "value": "SAMEORIGIN"
        },
        {
          "key": "X-Content-Type-Options",
          "value": "nosniff"
        },
        {
          "key": "Cache-Control",
          "value": "no-store"
        },
        {
          "key": "Pragma",
          "value": "no-cache"
        },
        {
          "key": "Content-Type",
          "value": "application/json;charset=UTF-8"
        },
        {
          "key": "Content-Length",
          "value": "1641"
        },
        {
          "key": "Date",
          "value": "Thu, 13 Aug 2020 12:21:39 GMT"
        }
      ],
      "cookie": [
      ],
      "body": "{\n    \"access_token\": \"eyJ0eXAiJ9.eyJzdWIiOiJkZPXXcM\",\n    \"refresh_token\": \"eyJ0eXAiOiJKV1QiLC.eyl0VHJXpdhFiWDw\",\n    \"scope\": \"edit\",\n    \"token_type\": \"Bearer\",\n    \"expires_in\": 3599\n}"
    }
  ]
}