# i3-ipc (synchronous)
[](https://crates.io/crates/i3_ipc)
[](https://docs.rs/i3_ipc)
A synchronous i3 IPC library. For async see [tokio-i3ipc](https://github.com/leshow/tokio-i3ipc).
## Subscribe
Subscribing to events is easy:
```rust
use i3_ipc::{
event::{Event, Subscribe},
I3Stream,
};
use std::io;
fn main() -> io::Result<()> {
let mut i3 = I3Stream::conn_sub(&[Subscribe::Window, Subscribe::Workspace])?;
for e in i3.listen() {
match e? {
Event::Workspace(ev) => println!("workspace change event {:?}", ev),
Event::Window(ev) => println!("window event {:?}", ev),
Event::Output(ev) => println!("output event {:?}", ev),
Event::Mode(ev) => println!("mode event {:?}", ev),
Event::BarConfig(ev) => println!("bar config update {:?}", ev),
Event::Binding(ev) => println!("binding event {:?}", ev),
Event::Shutdown(ev) => println!("shutdown event {:?}", ev),
Event::Tick(ev) => println!("tick event {:?}", ev),
}
}
Ok(())
}
```
## Get
Getting information is equally easy, use any `get_*` method or `run_command` to send a message to i3:
```rust
use i3_ipc::{Connect, I3};
use std::io;
fn main() -> io::Result<()> {
let mut i3 = I3::connect()?;
let workspaces = i3.get_workspaces()?;
println!("{:?}", workspaces);
Ok(())
}
```