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(PHP Extension) Refresh HMRC OAuth2 Access TokenDemonstrates how to refresh an HMRC access token.
<?php // The version number (9_5_0) should match version of the Chilkat extension used, omitting the micro-version number. // For example, if using Chilkat v9.5.0.48, then include as shown here: include("chilkat_9_5_0.php"); // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. // See Get HMRC Access Token // for sample code showing how to obtain a HMRC access token for desktop apps. // It is assumed we previously obtained an OAuth2 access token for HMRC. $jsonToken = new CkJsonObject(); $success = $jsonToken->LoadFile('qa_data/tokens/hmrc.json'); if ($success != true) { print 'Failed to load hmrc.json' . "\n"; exit; } // The access token JSON looks something like this: // { // "token_type": "Bearer", // "scope": "user_impersonation", // "expires_in": "3599", // "ext_expires_in": "0", // "expires_on": "1524783438", // "not_before": "1524779538", // "resource": "https://mydomain.api.crm.dynamics.com", // "access_token": "...", // "refresh_token": "...", // "id_token": "..." // } $oauth2 = new CkOAuth2(); $oauth2->put_TokenEndpoint('https://test-api.service.hmrc.gov.uk/oauth/token'); // Replace these with actual values. $oauth2->put_ClientId('HMRC-CLIENT-ID'); $oauth2->put_ClientSecret('HMRC-CLIENT-SECRET'); // Get the "refresh_token" $oauth2->put_RefreshToken($jsonToken->stringOf('refresh_token')); // Send the HTTP POST to refresh the access token.. $success = $oauth2->RefreshAccessToken(); if ($success != true) { print $oauth2->lastErrorText() . "\n"; exit; } // Load the access token response into the json object $jsonToken->Load($oauth2->accessTokenResponse()); // If an "expires_on" member does not exist, then add the JSON member by // getting the current system date/time and adding the "expires_in" seconds. // This way we'll know when the token expires. if ($jsonToken->HasMember('expires_on') == false) { $dtExpire = new CkDateTime(); $dtExpire->SetFromCurrentSystemTime(); $dtExpire->AddSeconds($jsonToken->IntOf('expires_in')); $jsonToken->AppendString('expires_on',$dtExpire->getAsUnixTimeStr(false)); } // Save the new JSON access token response to a file. // The access + refresh tokens contained in this JSON will be needed for the next refresh. $sbJson = new CkStringBuilder(); $jsonToken->put_EmitCompact(false); $jsonToken->EmitSb($sbJson); $sbJson->WriteFile('qa_data/tokens/hmrc.json','utf-8',false); print 'OAuth2 authorization granted!' . "\n"; print 'New Access Token = ' . $oauth2->accessToken() . "\n"; ?> |
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