Express.js close response

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Solution 1

Solved by setting a HTTP header to close the connection instead of default keep-alive strategy.

res.set("Connection", "close");

Solution 2

In case someone who really wants just to close the connection finds this, you can use res.socket or res.connection to get the net.Socket object which comes with a destroy method:

res.connection.destroy();
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Matej
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Matej

@matejkramny Hello, I am a Go, JS (node), PHP, Angular, JS, Java and Objective-C/Swift engineer. Email me on [email protected] LinkedIn: linkedin.com/in/matejkramny

Updated on January 12, 2022

Comments

  • Matej
    Matej over 2 years

    Is there a way to close a response? I can use res.end() but it doesn't actually close the socket.

    What I want to achieve: I am writing a Java program which interfaces with the network, and I am writing a NodeJS server for this. Java code:

    String line;
    while((line = in.readLine()) != null) {
        System.out.println("RES: "+line);
    }
    

    But this just keeps hanging. No end connection, still waiting for input from the socket.

    Node:

    exports.getAll = function (req, res) {
        res.set("Content-Type", "text/plain");
        res.set(200);
        res.send(..data..);
        res.end();
    }
    

    however res.end() does not close the connection. As said before, Java keeps thinking there will be something next so it is stuck in the while loop.