Hi! I’m trying implement a HTTP client using erlang library :gen_tcp and the section of code that should recover packet from socket are take too long time to return. My function is:
def request(url) do
%{host: host, port: port, path: path} = get_information(url)
{:ok, ipadress} = :inet.getaddr(String.to_charlist(host), :inet)
{:ok, socket} = :gen_tcp.connect(ipadress, port, [:binary, active: false])
:ok = :gen_tcp.send(socket, "GET #{path} HTTP/1.1")
{:ok, response} = :gen_tcp.recv(socket, 0)
{:ok, Response.process(response)}
end
I run the lines above in IEx in this way: request("http://localhost:4000") and :gen_tcp.recv(socket, 0) takes seconds to return. To test my code I did a simple HTTP server in Node exactly like this:
const http = require("http");
const server = http.createServer((req, res) => {
if (req.method === "GET" && req.url === "/") {
res.statusCode = 200;
res.setHeader("Content-Type", "text/plain");
res.end("Hello, world!");
return;
}
if (req.method === "GET" && req.url === "/user") {
res.statusCode = 200;
res.setHeader("Content-Type", "text/json");
res.setHeader("X-Request-Id", "01");
const user = {
name: "João",
age: 30,
id: 15,
};
res.end(JSON.stringify(user));
return;
}
});
server.listen(4000, () => {
console.log("Server is running on port 4000");
});
After many seconds waiting from :gen_tcp.recv(socket, 0), I receive this: {:ok, "HTTP/1.1 408 Request Timeout\r\nConnection: close\r\n\r\n"}
Somebody has any ideas about this issue?
Thanks!
