Polyweb

A web framework utilizing Polynet.

Quick Examples

pn::init();

pw::Server server;

server.route("/hello_world",
    pw::HTTPRoute {
        [](const pw::Connection& conn, const pw::HTTPRequest& req) {
            return pw::HTTPResponse(200, "Hello, World!", {{"Content-Type", "text/plain"}});
        },
    });

// Since this is a wildcard route, anything may come after /wildcard/
server.route("/wildcard/",
    pw::HTTPRoute {
        [](const pw::Connection& conn, const pw::HTTPRequest& req) {
            return pw::HTTPResponse(200, req.target, {{"Content-Type", "text/plain"}});
        },
        true,
    });

server.route("/multiply",
    pw::HTTPRoute {
        [](const pw::Connection& conn, const pw::HTTPRequest& req) {
            int x = std::stoi(req.query_parameters->find("x")->second);
            int y = std::stoi(req.query_parameters->find("y")->second);
            return pw::HTTPResponse(200, std::to_string(x * y), {{"Content-Type", "text/plain"}});
        },
    });

server.route("/send_stream",
    pw::HTTPRoute {
        [](const pw::Connection& conn, const pw::HTTPRequest& req) {
            return pw::HTTPResponse(200, [i = 0]() mutable -> std::vector<char> {
                if (i < 10) {
                    std::string str = std::to_string(i++);
                    return std::vector<char>(str.begin(), str.end());
                }
                return {};
            },
                {{"Content-Type", "text/plain"}});
        },
    });

server.route("/recv_stream",
    pw::HTTPRoute {
        [](pw::Connection& conn, pw::HTTPRequest req) {
            std::vector<char> body;
            req.recv_cb = [&body](std::vector<char> chunk) {
                body.insert(body.end(), chunk.begin(), chunk.end());
                return true;
            };
            if (conn.recv(req, PW_HTTP_MESSAGE_PART_BODY) == PN_ERROR) {
                return pw::HTTPResponse(500, pw::universal_strerror());
            }

            return pw::HTTPResponse(200, body);
        },
        false,
        false, // tells Polyweb not to parse the body
    });

if (server.bind("0.0.0.0", 8000) == PN_ERROR) {
    std::cerr << "Error: " << pn::universal_strerror() << std::endl;
    exit(EXIT_FAILURE);
}

if (server.listen() == PN_ERROR) {
    std::cerr << "Error: " << pw::universal_strerror() << std::endl;
    exit(EXIT_FAILURE);
}

server.close();
pn::quit();

Note that Polyweb functions/methods throw Polyweb errors while methods inherited from Polynet throw Polynet errors. Do not do anything with the conn argument unless you know what you are doing. See polyweb.hpp to check out more ways to use Polyweb.