```toml
[package]
name = "welders-api"
version = "0.1.0"
edition = "2021"

[dependencies]
actix-web = "4.0"
serde = { version = "1.0", features = ["derive"] }
serde_json = "1.0"
tokio = { version = "1.0", features = ["full"] }
```

Now let's update the frontend to use this API: