feat(hono/context): add buffer returns

runtime-tests/node/index.test.ts

@@ -247,3 +247,20 @@ describe('compress', async () => {
     expect(res.text).toBe(cssContent)
   })
 })
+
+describe('Buffers', () => {
+  const buffer = Buffer.from('hello')
+  buffer.write('Hello')
+
+  const app = new Hono().get('/', async (c) => {
+    return c.body(buffer)
+  })
+
+  const server = createAdaptorServer(app)
+
+  it('should allow returning buffers', async () => {
+    const res = await request(server).get('/')
+    expect(res.status).toBe(200)
+    expect(res.text).toBe('Hello')
+  })
+})

src/context.ts

@@ -1,3 +1,5 @@
+import type { Buffer } from 'node:buffer'
+
 import { HonoRequest } from './request'
 import type { Result } from './router'
 import type {
@@ -27,9 +29,9 @@ type HeaderRecord =
   | Record<string, string | string[]>
 
 /**
- * Data type can be a string, ArrayBuffer, or ReadableStream.
+ * Data type can be a string, ArrayBuffer, Buffer, or ReadableStream.
  */
-export type Data = string | ArrayBuffer | ReadableStream
+export type Data = string | ArrayBuffer | ReadableStream | Buffer
 
 /**
  * Interface for the execution context in a web worker or similar environment.