138 lines
6.7 KiB
Markdown
138 lines
6.7 KiB
Markdown
# node-GameDig - Game Server Query Library [](https://www.npmjs.com/package/gamedig)
|
|
|
|
**node-GameDig** is a game server query Node.js module (as well as a [command line executable](#usage-from-command-line)),
|
|
capable of querying for the status of nearly any game or voice server.
|
|
If a server makes its status publically available, GameDig can fetch it for you.
|
|
|
|
Support is available on the [GameDig Discord](https://discord.gg/NVCMn3tnxH) (for questions), or [GitHub Issues](https://github.com/gamedig/node-gamedig/issues) (for bugs).
|
|
|
|
## Games List
|
|
**node-GameDig** can query over 280 games (+ a few services)!
|
|
See the [GAMES_LIST.md](GAMES_LIST.md) file for the currently supported titles, not yet supported ones and notes about some of them.
|
|
|
|
## Usage from Node.js
|
|
Install...
|
|
```shell
|
|
npm install gamedig
|
|
```
|
|
... then use!
|
|
```js
|
|
import GameDig from 'gamedig';
|
|
|
|
GameDig.query({
|
|
type: 'minecraft',
|
|
host: 'mc.example.com'
|
|
}).then((state) => {
|
|
console.log(state);
|
|
}).catch((error) => {
|
|
console.log("Server is offline");
|
|
});
|
|
```
|
|
|
|
## Query Options
|
|
|
|
**Typical**
|
|
|
|
* **type**: string - One of the game IDs listed in the game list below
|
|
* **host**: string - Hostname or IP of the game server
|
|
* **port**: number (optional) - Connection port or query port for the game server. Some
|
|
games utilize a separate "query" port. If specifying the game port does not seem to work as expected, passing in
|
|
this query port may work instead. (defaults to protocol default port)
|
|
|
|
**Advanced**
|
|
|
|
These fields are all optional.
|
|
* **maxAttempts**: number - Number of attempts to query server in case of failure. (default 1)
|
|
* **socketTimeout**: number - Milliseconds to wait for a single packet. Beware that increasing this
|
|
will cause many queries to take longer even if the server is online. (default 2000)
|
|
* **attemptTimeout**: number - Milliseconds allowed for an entire query attempt. This timeout is not commonly hit,
|
|
as the socketTimeout typically fires first. (default 10000)
|
|
* **givenPortOnly**: boolean - Only attempt to query server on given port. (default false)
|
|
* **ipFamily**: number - IP family/version returned when looking up hostnames via DNS, can be 0 (IPv4 and IPv6), 4 (IPv4 only) or 6 (IPv6 only). (default 0)
|
|
* **debug**: boolean - Enables massive amounts of debug logging to stdout. (default false)
|
|
* **requestRules**: boolean - Valve games only. Additional 'rules' may be fetched into the `raw` field. (default false)
|
|
|
|
## Return Value
|
|
|
|
The returned state object will contain the following keys:
|
|
|
|
* **name**: string - Server name
|
|
* **map**: string - Current server game map
|
|
* **password**: boolean - If a password is required
|
|
* **maxplayers**: number
|
|
* **players**: array of objects
|
|
* **name**: string - If the player's name is unknown, the string will be empty.
|
|
* **raw**: object - Additional information about the player if available (**unstable**).
|
|
* **bots**: array of objects - Same schema as `players`
|
|
* **connect**: string
|
|
* This will typically include the game's `ip:port`
|
|
* The port will reflect the server's game port, even if your request specified the game's query port in the request.
|
|
* For some games, this may be a server ID or connection url if an IP:Port is not appropriate for end-users.
|
|
* **ping**: number
|
|
* Round trip time to the server (in milliseconds).
|
|
* Note that this is not the RTT of an ICMP echo, as ICMP packets are often blocked by NATs and node
|
|
has poor support for raw sockets.
|
|
* This value is derived from the RTT of one of the query packets, which is usually quite accurate, but may add a bit due to server lag.
|
|
* **raw**: freeform object (**unstable**)
|
|
* Contains all information received from the server in a disorganized format.
|
|
|
|
Note that `raw` (or **unstable**) objects contents MAY change on a per-protocol basis between GameDig patch releases (although not typical).
|
|
|
|
### Usage from Command Line
|
|
|
|
Want to integrate server queries from a batch script or other programming language?
|
|
You'll still need npm to install gamedig:
|
|
```shell
|
|
npm install gamedig -g
|
|
```
|
|
|
|
After installing gamedig globally, you can call gamedig via the command line:
|
|
```shell
|
|
gamedig --type minecraft mc.example.com:11234
|
|
# Alternatively, if you don't want to install gamedig globally, you can run it with npx:
|
|
npx gamedig --type minecraft mc.example.com:11234
|
|
```
|
|
|
|
The output of the command will be in JSON format.
|
|
Additional advanced parameters can be passed in as well:
|
|
* `--debug`: Print debugging informations, useful when stating an issue.
|
|
* `--pretty`: Outputs the JSON format nicely.
|
|
* `--requestRules`: Request Valve games rules.
|
|
* `--givenPortOnly`: Run the query with the specified port only (if any).
|
|
* `--socketTimeout N`: Specifies socket timeout (where `N` is a number, eg. `5000`).
|
|
* ... and the rest in the same format.
|
|
|
|
## Common Issues
|
|
|
|
### Firewalls block incoming UDP
|
|
*(replit / docker / some VPS providers)*
|
|
|
|
Most game query protocols require a UDP request and response. This means that in some environments, gamedig may not be able to receive the reponse required due to environmental restrictions.
|
|
|
|
Some examples include:
|
|
* Docker containers
|
|
* You may need to run the container in `--network host` mode so that gamedig can bind a UDP listen port.
|
|
* Alternatively, you can forward a single UDP port to your container, and force gamedig to listen on that port using the instructions in the section down below.
|
|
* replit
|
|
* Most online IDEs run in an isolated container, which will never receive UDP responses from outside networks.
|
|
* Various VPS / server providers
|
|
* Even if your server provider doesn't explicitly block incoming UDP packets, some server hosts block other server hosts from connecting to them for DDOS-mitigation and anti-botting purposes.
|
|
|
|
### Gamedig doesn't work in the browser
|
|
Gamedig cannot operate within a browser. This means you cannot package it as part of your webpack / browserify / rollup / parcel package.
|
|
Even if you were able to get it packaged into a bundle, unfortunately no browsers support the UDP protocols required to query server status
|
|
from most game servers.
|
|
As an alternative, we'd recommend using gamedig on your server-side, then expose your own API to your webapp's frontend
|
|
displaying the status information. If your application is thin (with no constant server component), you may wish to investigate a server-less lambda provider.
|
|
|
|
### Specifying a listen UDP port override
|
|
In some very rare scenarios, you may need to bind / listen on a fixed local UDP port. The is usually not needed except behind
|
|
some extremely strict firewalls, or within a docker container (where you only wish to forward a single UDP port).
|
|
To use a fixed listen udp port, construct a new Gamedig object like this:
|
|
```
|
|
const gamedig = new GameDig({
|
|
listenUdpPort: 13337
|
|
});
|
|
gamedig.query(...)
|
|
```
|