1.3 KiB
title, order, status
| title | order | status |
|---|---|---|
| C04. Follow Redirects | 4 | draft |
By default, cpp-httplib does not follow HTTP redirects (3xx). If the server returns 302 Found, you'll get it as a response with status code 302 — nothing more.
To follow redirects automatically, call set_follow_location(true).
Follow redirects
httplib::Client cli("http://example.com");
cli.set_follow_location(true);
auto res = cli.Get("/old-path");
if (res && res->status == 200) {
std::cout << res->body << std::endl;
}
With set_follow_location(true), the client reads the Location header and reissues the request to the new URL automatically. The final response ends up in res.
Redirects from HTTP to HTTPS
httplib::Client cli("http://example.com");
cli.set_follow_location(true);
auto res = cli.Get("/");
Many sites redirect HTTP traffic to HTTPS. With set_follow_location(true) on, this case is handled transparently — the client follows redirects even when the scheme or host changes.
Warning: To follow redirects to HTTPS, you need to build cpp-httplib with OpenSSL (or another TLS backend). Without TLS support, redirects to HTTPS will fail.
Note: Following redirects adds to the total request time. See C12. Set Timeouts for timeout configuration.