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(PHP Extension) Get Object MetaData from Google Cloud StorageDemonstrates how to download a Google Cloud Storage object's metadata.
<?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. // This example uses a previously obtained access token having permission for the // scope "https://www.googleapis.com/auth/cloud-platform" // In this example, Get Google Cloud Storage OAuth2 Access Token, // the service account access token was saved to a text file. This example fetches the access token from the file.. $sbToken = new CkStringBuilder(); $sbToken->LoadFile('qa_data/tokens/googleCloudStorageAccessToken.txt','utf-8'); // Send a GET equivalent to this curl command. // curl -X GET \ // -H "Authorization: Bearer [OAUTH2_TOKEN]" \ // -o "[SAVE_TO_LOCATION]" \ // "https://www.googleapis.com/storage/v1/b/[BUCKET_NAME]/o/[OBJECT_NAME]?projection=full" $http = new CkHttp(); $http->put_AuthToken($sbToken->getAsString()); // Construct a URL to download the metadata for the object named "starfish.jpg" located in the "chilkat-ocean" bucket. $http->SetUrlVar('bucket_name','chilkat-ocean'); $http->SetUrlVar('object_name','starfish.jpg'); $url = 'https://www.googleapis.com/storage/v1/b/{$bucket_name}/o/{$object_name}?projection=full'; // If there is an error response, then we didn't actually download the metadata, // but instead we downloaded an error response.. $sbMetaData = new CkStringBuilder(); $success = $http->DownloadSb($url,'utf-8',$sbMetaData); if ($success == false) { print $http->lastErrorText() . "\n"; exit; } $responseCode = $http->get_LastStatus(); if ($responseCode == 401) { print 'If invalid credentials, then it is likely the access token expired.' . "\n"; print 'Your app should automatically fetch a new access token and re-try.' . "\n"; } if ($responseCode != 200) { print 'Error response code = ' . $responseCode . "\n"; print 'Error:' . "\n"; print $sbMetaData->getAsString() . "\n"; exit; } print $sbMetaData->getAsString() . "\n"; print 'Success.' . "\n"; // Sample output: // { // "kind": "storage#object", // "id": "chilkat-ocean/starfish.jpg/1502670320090292", // "selfLink": "https://www.googleapis.com/storage/v1/b/chilkat-ocean/o/starfish.jpg", // "name": "starfish.jpg", // "bucket": "chilkat-ocean", // "generation": "1502670320090292", // "metageneration": "1", // "contentType": "image/jpeg", // "timeCreated": "2017-08-14T00:25:20.040Z", // "updated": "2017-08-14T00:25:20.040Z", // "storageClass": "MULTI_REGIONAL", // "timeStorageClassUpdated": "2017-08-14T00:25:20.040Z", // "size": "6229", // "md5Hash": "LpxZ2/JmI2fcl9/dqF2gSA==", // "mediaLink": "https://www.googleapis.com/download/storage/v1/b/chilkat-ocean/o/starfish.jpg?generation=1502670320090292&alt=media", // "acl": [ // { // "kind": "storage#objectAccessControl", // "id": "chilkat-ocean/starfish.jpg/1502670320090292/project-owners-933037264567", // "selfLink": "https://www.googleapis.com/storage/v1/b/chilkat-ocean/o/starfish.jpg/acl/project-owners-933037264567", // "bucket": "chilkat-ocean", // "object": "starfish.jpg", // "generation": "1502670320090292", // "entity": "project-owners-933037264567", // "role": "OWNER", // "projectTeam": { // "projectNumber": "933037264567", // "team": "owners" // }, // "etag": "CLT5kpW71dUCEAE=" // }, // { // "kind": "storage#objectAccessControl", // "id": "chilkat-ocean/starfish.jpg/1502670320090292/project-editors-933037264567", // "selfLink": "https://www.googleapis.com/storage/v1/b/chilkat-ocean/o/starfish.jpg/acl/project-editors-933037264567", // "bucket": "chilkat-ocean", // "object": "starfish.jpg", // "generation": "1502670320090292", // "entity": "project-editors-933037264567", // "role": "OWNER", // "projectTeam": { // "projectNumber": "933037264567", // "team": "editors" // }, // "etag": "CLT5kpW71dUCEAE=" // }, // { // "kind": "storage#objectAccessControl", // "id": "chilkat-ocean/starfish.jpg/1502670320090292/project-viewers-933037264567", // "selfLink": "https://www.googleapis.com/storage/v1/b/chilkat-ocean/o/starfish.jpg/acl/project-viewers-933037264567", // "bucket": "chilkat-ocean", // "object": "starfish.jpg", // "generation": "1502670320090292", // "entity": "project-viewers-933037264567", // "role": "READER", // "projectTeam": { // "projectNumber": "933037264567", // "team": "viewers" // }, // "etag": "CLT5kpW71dUCEAE=" // }, // { // "kind": "storage#objectAccessControl", // "id": "chilkat-ocean/starfish.jpg/1502670320090292/user-starfish@chilkat-176611.iam.gserviceaccount.com", // "selfLink": "https://www.googleapis.com/storage/v1/b/chilkat-ocean/o/starfish.jpg/acl/user-starfish@chilkat-176611.iam.gserviceaccount.com", // "bucket": "chilkat-ocean", // "object": "starfish.jpg", // "generation": "1502670320090292", // "entity": "user-starfish@chilkat-176611.iam.gserviceaccount.com", // "role": "OWNER", // "email": "starfish@chilkat-176611.iam.gserviceaccount.com", // "etag": "CLT5kpW71dUCEAE=" // } // ], // "owner": { // "entity": "user-starfish@chilkat-176611.iam.gserviceaccount.com" // }, // "crc32c": "9RjgwQ==", // "etag": "CLT5kpW71dUCEAE=" // } // ?> |
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