Are you trying to figure out how to use Juniper with Rocket?
Clone this project and follow the instructions below and start playing today! Unlike the Rocket example in the Juniper repo, it can be built without relying on types defined in Juniper tests.
Since Rocket uses the latest and greatest features of Rust, you need to use a nightly version of rust. As per the Rocket documentation, you can do this using
$ rustup default nightly
or per project basis
$ rustup override set nightly
Lastly, you can run the server using
$ cargo run
If all goes well, you will be able to visit http://localhost:8000/ with a graphiql interface.
I found this example by Roman Frołow to helpful.