Returns JSON instead of text/event-stream

[HK-SHAO]

What version of Elysia is running?

1.1.25

What platform is your computer?

Darwin 23.5.0 arm64 arm

What steps can reproduce the bug?

set.headers['Content-Type'] = 'application/json';
return stream satisfies Promise<ReadableStream<string>>;

What is the expected behavior?

Received a response with:

Content-Type: application/json; charset=utf-8

What do you see instead?

Received a response with:

Content-Type: application/json, text/event-stream; charset=utf-8

Additional information

In the response body, I wish I could stream a string.
The string is actually a JSON text (generated by my streaming stringify)

Have you try removing the node_modules and bun.lockb and try again yet?

yes

[SaltyAom]

I would like to hear what scenario led you to return application/json with event stream data.

However, you can use mapResponse to override Elysia default response like this:

new Elysia()
	.get('/', () => {}, {
		mapResponse({ response }) {
			if (response instanceof ReadableStream)
				return new Response(response, {
					headers: {
						'Content-Type': 'application/octet-stream'
					}
				})
		}
	})