| import os |
| import time |
| |
| def handle_headers(frame, request, response): |
| resource_url = request.GET.first(b"resource-url").decode() |
| link_header_value = "<{}>; rel=preload; as=script".format(resource_url) |
| early_hints = [ |
| (b":status", b"103"), |
| (b"link", link_header_value), |
| ] |
| response.writer.write_raw_header_frame(headers=early_hints, |
| end_headers=True) |
| |
| # Sleep to simulate a slow generation of the final response. |
| time.sleep(0.1) |
| response.status = 200 |
| response.headers[b"content-type"] = "application/pdf" |
| response.write_status_headers() |
| |
| |
| def main(request, response): |
| current_dir = os.path.dirname(os.path.realpath(__file__)) |
| file_path = os.path.join(current_dir, "example.pdf") |
| with open(file_path, "rb") as f: |
| content = f.read() |
| response.writer.write_data(item=content, last=True) |