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Making HTTP requests¶

Why use HTTP?¶

HTTP requests are useful to communicate with web servers and other non-Godot programs.

Compared to Godot's other networking features (like High-level multiplayer), HTTP requests have more overhead and take more time to get going, so they aren't suited for real-time communication, and aren't great to send lots of small updates as is common for multiplayer gameplay.

HTTP, however, offers interoperability with external web resources and is great at sending and receiving large amounts of data, for example to transfer files like game assets.

So HTTP may be useful for your game's login system, lobby browser, to retrieve some information from the web or to download game assets.

This tutorial assumes some familiarity with Godot and the Godot Editor. Refer to the Introduction and the Step by step tutorial, especially its Nodes and Scenes and Creating your first script pages if needed.

HTTP requests in Godot¶

The HTTPRequest node is the easiest way to make HTTP requests in Godot. It is backed by the more low-level HTTPClient, for which a tutorial is available here.

For this example, we will make an HTTP request to GitHub to retrieve the name of the latest Godot release.

Warning

When exporting to Android, make sure to enable the Internet permission in the Android export preset before exporting the project or using one-click deploy. Otherwise, network communication of any kind will be blocked by the Android OS.

Preparing the scene¶

Create a new empty scene, add a root Node and add a script to it. Then add a HTTPRequest node as a child.

Scripting the request¶

When the project is started (so in _ready()), we're going to send an HTTP request to Github using our HTTPRequest node, and once the request completes, we're going to parse the returned JSON data, look for the name field and print that to console.

extends Node

func _ready():
    $HTTPRequest.request_completed.connect(_on_request_completed)
    $HTTPRequest.request("https://api.github.com/repos/godotengine/godot/releases/latest")

func _on_request_completed(result, response_code, headers, body):
    var json = JSON.parse_string(body.get_string_from_utf8())
    print(json["name"])

using Godot;
using System.Text;

public partial class MyNode : Node
{
    public override void _Ready()
    {
        HttpRequest httpRequest = GetNode<HttpRequest>("HTTPRequest");
        httpRequest.RequestCompleted += OnRequestCompleted;
        httpRequest.Request("https://api.github.com/repos/godotengine/godot/releases/latest");
    }

    private void OnRequestCompleted(long result, long responseCode, string[] headers, byte[] body)
    {
        Godot.Collections.Dictionary json = Json.ParseString(Encoding.UTF8.GetString(body)).AsGodotDictionary();
        GD.Print(json["name"]);
    }
}

Save the script and the scene, and run the project. The name of the most recent Godot release on Github should be printed to the output log. For more information on parsing JSON, see the class references for JSON.

Note that you may want to check whether the result equ