seanmonstar/warp

★ 10,317RustAudience · developerComplexity · 3/5Setup · moderate

Mindmap

mindmap
  root((warp))
    Core Concept
      Composable Filters
      Route matching
      Request parsing
    Built-in Filters
      Path matching
      JSON body
      File serving
    Protocol Support
      HTTP/1 and HTTP/2
      WebSockets
      Compression
    Use Cases
      REST APIs
      WebSocket servers
      High-perf backends

mindmap root((warp)) Core Concept Composable Filters Route matching Request parsing Built-in Filters Path matching JSON body File serving Protocol Support HTTP/1 and HTTP/2 WebSockets Compression Use Cases REST APIs WebSocket servers High-perf backends

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Things people build with this

USE CASE 1

Build a REST API server in Rust with multiple URL routes that parse JSON request bodies and return JSON responses.

USE CASE 2

Create a real-time WebSocket server for live updates in a Rust application.

USE CASE 3

Serve static files with HTTP/2 and automatic gzip compression using a few composable filter lines.

Tech stack

RusthyperTokioWebSocketgzipbrotli

Getting it running

Difficulty · moderate Time to first run · 30min

Requires a Rust toolchain installed, add two lines to Cargo.toml to get started.

In plain English

Warp is a Rust library for building web servers. In web development, a "framework" provides the building blocks so you do not have to write the low-level details of handling internet requests from scratch. Warp focuses on being composable, meaning you build your server out of small, reusable pieces that you combine together rather than configuring a large monolithic system. The central idea in warp is a concept called a Filter. A filter is a rule that a request must satisfy or a piece of data that should be extracted from the request. Filters for path matching, reading headers, parsing query strings, accepting JSON, handling file uploads, and other common tasks are included out of the box. You combine multiple filters together to describe exactly what a particular route should accept and what information it needs to process a request. Built on top of a lower-level library called hyper, warp supports HTTP/1, HTTP/2, and WebSockets. Requests are handled asynchronously, meaning the server can handle many connections at once without waiting for each one to finish before starting the next. Compression formats like gzip and brotli are also available as built-in filters. The README includes a short code example showing a server that responds to requests at a particular URL path. Adding warp to a Rust project involves two lines in the project configuration file, and a minimal working server is around ten lines of code. The documentation site and a collection of examples in the repository cover more advanced usage. This is a library for Rust developers. It is not a standalone program and requires writing Rust code to use.

Copy-paste prompts

Prompt 1

Help me write a warp web server in Rust with three routes: GET /users returns a JSON list, POST /users creates a user from a JSON body, and GET /health returns 200 OK.

Prompt 2

I'm using the warp Rust framework. Write a filter that reads a bearer token from the Authorization header and rejects requests that don't have a valid token.

Prompt 3

Show me how to add gzip compression to all responses in a warp server using the built-in compression filter.

Prompt 4

Help me add WebSocket support to an existing warp server so browser clients can subscribe to real-time event updates.

Prompt 5

I'm combining multiple warp filters and getting a type error. Explain how warp's type-level filter composition works and how to fix mismatched tuple types.

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