Deploy a Rust Actix Web Server with OpenClaw

Rust with Actix-web gives you maximum performance for OpenClaw. Here's how to deploy.

The Actix Web Server

// src/main.rs
use actix_web::{web, App, HttpServer, HttpResponse, Responder};
use serde::Deserialize;

#[derive(Deserialize)]
struct ChatRequest {
    message: String,
}

async fn health() -> impl Responder {
    HttpResponse::Ok().json(serde_json::json!({
        "status": "ok"
    }))
}

async fn chat(req: web::Json<ChatRequest>) -> impl Responder {
    let response = openclaw::chat(&req.message).await;
    HttpResponse::Ok().json(serde_json::json!({
        "response": response
    }))
}

#[actix_web::main]
async fn main() -> std::io::Result<()> {
    HttpServer::new(|| {
        App::new()
            .route("/health", web::get().to(health))
            .route("/chat", web::post().to(chat))
    })
    .bind(("0.0.0.0", 8080))?
    .run()
    .await
}

Cargo.toml

[dependencies]
actix-web = "4"
serde = { version = "1", features = ["derive"] }
serde_json = "1"
openclaw-sdk = "0.1"

Build and Deploy

cargo build --release
fly launch --no-deploy
fly secrets set OPENAI_API_KEY=sk-...
fly deploy