Crate cs2_gsi 

cs2-gsi

Counter-Strike 2 Game State Integration listener for Rust.

• Async, single dependency surface — built on tokio + hyper 1.x.
• Strongly typed model and events (no serde_json::Value in your code).
• Drop-in cfg writer — generate the right gamestate_integration_*.cfg into the right place via Steam path discovery.
• Event diffing done for you: subscribe to PlayerDied, BombPlanted, RoundPhaseUpdated, KillFeed, … instead of comparing payloads by hand.

Quick start

use cs2_gsi::{events::PlayerDied, cfg::GsiCfg, GameStateListener};

// 1. Drop a gamestate_integration_*.cfg into the CS2 cfg dir.
#[cfg(feature = "steam-discover")]
GsiCfg::for_localhost("ImLag", 4000).write_to_cs2()?;

// 2. Stand up the listener.
let listener = GameStateListener::new(4000);
listener.on(|e: &PlayerDied| {
    println!("☠ {} died", e.player.name);
});
listener.start().await?;

// ... run the rest of your app ...

listener.stop().await?;

How it works

  CS2 client                                Your app
 ┌──────────┐                             ┌───────────────┐
 │ cfg file │── HTTP POST JSON ──────────▶│ GameStateList │
 └──────────┘                             │   (this lib)  │
        ▲                                 │     diff       │
        │           generate cfg          │      ▼         │
        └─────────────────────────────────│  typed events  │
                                          └───────────────┘

Every payload arrives as JSON, is parsed into a model::GameState, diffed against the previous one and turned into a stream of typed events. Handlers run synchronously on the listener task — keep them light or tokio::spawn from inside.

Re-exports

pub use crate::error::Error;

pub use crate::error::Result;

pub use crate::events::GameEvent;

pub use crate::model::GameState;

Modules

cfg

Auto-generate gamestate_integration_*.cfg files for Counter-Strike 2.

error

Error types for cs2-gsi.

events

Strongly typed events emitted by GameStateListener.

model

Top-level GameState model.

steam

Steam / Counter-Strike 2 install path discovery.

Structs

GameStateListener

HTTP listener for CS2 GSI payloads.