[core][ts-http-runtime] support Blob type in getRequestBody

sdk/core/ts-http-runtime/CHANGELOG.md

@@ -5,6 +5,7 @@
 ### Features Added
 
 - Added `allowCrossOriginRedirects` option to `RedirectPolicyOptions`. [#37384](https://github.com/Azure/azure-sdk-for-js/pull/37384)
+- Support function type and `Blob` type for request body. ([#37300](https://github.com/Azure/azure-sdk-for-js/pull/37300), [#37424](https://github.com/Azure/azure-sdk-for-js/pull/37424))
 
 ### Breaking Changes
 

sdk/core/ts-http-runtime/src/client/sendRequest.ts

@@ -14,7 +14,7 @@ import type { Pipeline } from "../pipeline.js";
 import { createHttpHeaders } from "../httpHeaders.js";
 import { createPipelineRequest } from "../pipelineRequest.js";
 import { getCachedDefaultHttpsClient } from "./clientHelpers.js";
-import { isReadableStream } from "../util/typeGuards.js";
+import { isBlob, isReadableStream } from "../util/typeGuards.js";
 import type { HttpResponse, RequestParameters } from "./common.js";
 import type { PartDescriptor } from "./multipart.js";
 import { buildMultipartBody } from "./multipart.js";
@@ -96,6 +96,10 @@ function getContentType(body: any): string | undefined {
     return "application/octet-stream";
   }
 
+  if (isBlob(body) && body.type) {
+    return body.type;
+  }
+
   if (typeof body === "string") {
     try {
       JSON.parse(body);
@@ -155,7 +159,7 @@ interface RequestBody {
 /**
  * Prepares the body before sending the request
  */
-function getRequestBody(body?: unknown, contentType: string = ""): RequestBody {
+export function getRequestBody(body?: unknown, contentType: string = ""): RequestBody {
   if (body === undefined) {
     return { body: undefined };
   }
@@ -164,6 +168,10 @@ function getRequestBody(body?: unknown, contentType: string = ""): RequestBody {
     return { body };
   }
 
+  if (isBlob(body)) {
+    return { body };
+  }
+
   if (isReadableStream(body) || typeof body === "function") {
     return { body } as RequestBody;
   }

sdk/core/ts-http-runtime/test/browser/sendRequest.spec.ts

@@ -0,0 +1,32 @@
+// Copyright (c) Microsoft Corporation.
+// Licensed under the MIT License.
+
+import { describe, it, assert } from "vitest";
+import { getRequestBody } from "../../src/client/sendRequest.js";
+
+describe("getRequestBody (browser)", () => {
+  it("should handle FormData", () => {
+    const formData = new FormData();
+    formData.append("foo", "bar");
+    const result = getRequestBody(formData);
+    assert.strictEqual(result.body, formData);
+  });
+
+  it("should handle Blob", () => {
+    const blob = new Blob(["test content"], { type: "text/plain" });
+    const result = getRequestBody(blob);
+    assert.strictEqual(result.body, blob);
+  });
+
+  it("should handle Uint8Array", () => {
+    const array = new Uint8Array([1, 2, 3]);
+    const result = getRequestBody(array);
+    assert.strictEqual(result.body, array);
+  });
+
+  it("should handle ReadableStream", () => {
+    const stream = new ReadableStream();
+    const result = getRequestBody(stream);
+    assert.strictEqual(result.body, stream);
+  });
+});