from aiohttp import web async def handler(request): file_path = '/path/to/large/file' response = web.StreamResponse() response.headers['Content-Type'] = 'application/octet-stream' await response.prepare(request) chunk_size = 4096 with open(file_path, 'rb') as file: while True: chunk = file.read(chunk_size) if not chunk: break await response.write(chunk) return response
from aiohttp import web async def handler(request): def generate_data(): yield b'Hello, ' yield b'world!' response = web.StreamResponse() response.headers['Content-Type'] = 'text/plain' await response.prepare(request) for chunk in generate_data(): await response.write(chunk) return responseHere, the StreamResponse is used to stream a simple generator function that yields two byte strings. The response object is created, headers are set, and the response is written in a for loop that iterates over the generator. Overall, aiohttp is a great package library that provides useful features for creating web applications with Python. The StreamResponse class is a useful tool for streaming large amounts of data in a memory-efficient way.