Oops, I Did It Again...I Made A Rust Web API And It Was Not That Difficult

• todo-mvp

  3 138 0.0 CSS

  The non-SPA version of the todo list app

This post is only concerned with Rust and will use assets identical to the last post. Create a folder called templates at the project's top-level, and place this index.html inside. You will also need to create a directory at src/resource and fill it with these files. There is a stylesheet and a handful of SVG files. Your structure should look like this:

• tera

  20 3,218 6.5 Rust

  A template engine for Rust based on Jinja2/Django

This application only consists of a single page that will be refreshed whenever the state changes. We placed markup at templates/index.html, an HTML file using Jinja-style templating. We'll use Tera to handle this in Rust.

• WorkOS

  workos.com sponsored

  The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.

  

• fenix

  19 560 9.5 Nix

  Rust toolchains and rust-analyzer nightly for Nix [maintainer=@figsoda] (by figsoda)

  

To follow along, you'll need a stable Rust toolchain. See the install page for instructions to install rustup for your platform. You should prefer this method to your distribution's package manager. If you're a NixOS freak, I recommend fenix.

• hyper

  97 13,821 9.2 Rust

  An HTTP library for Rust (by hyperium)

  

Over two years ago (gulp), I posted a walkthrough of my Rust implementation of todo-mvp by @gypsydave, demonstrating how to build a simple Rust API without a framework. The core functionality was built using hyper, a lower-level HTTP library instead of a full-blown framework.

• anyhow

  13 5,049 8.4 Rust

  Flexible concrete Error type built on std::error::Error

I've brought anyhow::Result into scope, making error handling super easy to use. We don't need to specify all our Error types. It can automatically convert any errors that implement std::error::Error, which should be all of them. If an error propagates all the way up to main(), we'll get all the info it's captured printed to stdout.

• lazy-static.rs

  6 1,861 5.0 Rust

  A small macro for defining lazy evaluated static variables in Rust.

  

The templates need to be compiled before use, but this only needs to happen once. We can use lazy_static to ensure this compilation happens the first time the templates are accessed, and then reuse the compiled result for all subsequent access:

• select.rs

  2 936 3.9 Rust

  A Rust library to extract useful data from HTML documents, suitable for web scraping.

Once we have our string response, we can use the select.rs library to ensure the structure matches our intent. In this case, we are asserting we've received an h1 element with a text body matching the string NOT FOUND!.

• InfluxDB

  www.influxdata.com sponsored

  Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

  

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