This is an attempt at a slightly-more-involved-but-still-small-enough-to-be-an-example example of a chat server using tokio. For a less involved chat server example, see the chat server example from tokio-core. There are three crates present here:
tokio-chat-commonprovides message data types and codecs for client/server communicationtokio-chat-serverhas hopefully well-annotated source code (PRs/feedback welcome!)tokio-chat-clienthas slightly-less-well-annotated source code and provides a Cursive-based textual interface to the server.
Compiling tokio-chat-common - and therefore running either the client or server - requires procedural macros because of its use of serde, and so requires Rust 1.15 or later (which is still in beta at the time of this writing). If you're using rustup, something like this should work:
cd tokio-chat-server
rustup run beta cargo run
and then in another window:
cd tokio-chat-client
rustup run beta cargo run -- username1
(and possibly the above multiple times, probably with different usernames if you want to be able to tell them apart). If all goes well, you should be able to type in the client windows and see something like this:
John Gallagher, johnkgallagher@gmail.com
tokio-chat-example is available under the MIT license. See the LICENSE file for more info.