aiohttp_cors_setup_with_custom_resource_options.py

1import asyncio
2from aiohttp import web
3import aiohttp_cors
4
5async def handler(request):
6    return web.Response(text="OK")
7
8app = web.Application()
9
10# Configure default CORS settings.
11cors = aiohttp_cors.setup(app, defaults={
12    "*": aiohttp_cors.ResourceOptions(
13            allow_credentials=True,
14            expose_headers="*",
15            allow_headers="*",
16        )
17})
18
19# Add the route and enable CORS on it.
20resource = cors.add(app.router.add_resource("/hello"))
21route = cors.add(
22    resource.add_route("GET", handler), {
23        "http://client.example.org": aiohttp_cors.ResourceOptions(
24            allow_credentials=True,
25            expose_headers=("X-Custom-Server-Header",),
26            allow_headers=("X-Requested-With", "Content-Type"),
27        ),
28    })
29
30if __name__ == "__main__":
31    web.run_app(app)