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(Node.js) Azure Storage: CORS Preflight Blob RequestAzure Storage Blob Service REST API: Sample code to send a CORS pre-flight blob request.
var os = require('os'); if (os.platform() == 'win32') { var chilkat = require('@chilkat/ck-node23-win64'); } else if (os.platform() == 'linux') { if (os.arch() == 'arm') { var chilkat = require('@chilkat/ck-node23-linux-arm'); } else if (os.arch() == 'arm64') { var chilkat = require('@chilkat/ck-node23-linux-arm64'); } else { var chilkat = require('@chilkat/ck-node23-linux-x64'); } } else if (os.platform() == 'darwin') { var chilkat = require('@chilkat/ck-node23-mac-universal'); } function chilkatExample() { // Azure Blob Service Example: CORS Preflight Blob Request // See also: https://msdn.microsoft.com/en-us/library/azure/dn535599.aspx // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. var rest = new chilkat.Rest(); // Connect to the Azure Storage Blob Service var bTls = true; var port = 443; var bAutoReconnect = true; // In this example, the storage account name is "chilkat". var success = rest.Connect("chilkat.blob.core.windows.net",port,bTls,bAutoReconnect); if (success !== true) { console.log(rest.LastErrorText); return; } // Provide Azure Cloud credentials for the REST call. var azAuth = new chilkat.AuthAzureStorage(); azAuth.AccessKey = "AZURE_ACCESS_KEY"; // The account name used here should match the 1st part of the domain passed in the call to Connect (above). azAuth.Account = "chilkat"; azAuth.Scheme = "SharedKey"; azAuth.Service = "Blob"; // This causes the "x-ms-version: 2021-08-06" header to be automatically added. azAuth.XMsVersion = "2021-08-06"; success = rest.SetAuthAzureStorage(azAuth); // Note: The application does not need to explicitly set the following // headers: x-ms-date, Authorization. These headers // are automatically set by Chilkat. // The preflight blob request requires the following two HTTP headers. // The Origin is the domain from which the actual request will be issued. success = rest.AddHeader("Origin","www.contoso.com"); // The Access-Control-Request-Method is the HTTP method (such as GET, POST, PUT, etc.) of the actual request. success = rest.AddHeader("Access-Control-Request-Method","PUT"); // The expected response is a 202 response status code with no response body. // The name of the container or blob resource in this example is "test". (Replace "test" with your container name.) var responseStr = rest.FullRequestNoBody("OPTIONS","/test"); if (rest.LastMethodSuccess !== true) { console.log(rest.LastErrorText); return; } // When successful, the Azure Storage service will respond with a 200 response code, // with no response body. // If CORS is not enabled or no matching rule is found for the request, // then a 403 status code is returned, with the following status text: // "CORS not enabled or no matching rule found for this request." if (rest.ResponseStatusCode !== 200) { // Examine the request/response to see what happened. console.log("response status code = " + rest.ResponseStatusCode); console.log("response status text = " + rest.ResponseStatusText); console.log("response header: " + rest.ResponseHeader); console.log("response body (if any): " + responseStr); console.log("---"); console.log("LastRequestStartLine: " + rest.LastRequestStartLine); console.log("LastRequestHeader: " + rest.LastRequestHeader); return; } console.log("Success: Preflight Blob Request is accepted."); } chilkatExample(); |
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