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A modern runtime for JavaScript and TypeScript.
https://deno.com/
950e0e9cd6
This PR implements a graceful shutdown API for Deno.serve, allowing all current connections to drain from the server before shutting down, while preventing new connections from being started or new transactions on existing connections from being created. We split the cancellation handle into two parts: a listener handle, and a connection handle. A graceful shutdown cancels the listener only, while allowing the connections to drain. The connection handle aborts all futures. If the listener handle is cancelled, we put the connections into graceful shutdown mode, which disables keep-alive on http/1.1 and uses http/2 mechanisms for http/2 connections. In addition, we now guarantee that all connections are complete or cancelled, and all resources are cleaned up when the server `finished` promise resolves -- we use a Rust-side server refcount for this. Performance impact: does not appear to affect basic serving performance by more than 1% (~126k -> ~125k) --------- Co-authored-by: Bartek Iwańczuk <biwanczuk@gmail.com> |
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| .cargo | ||
| .devcontainer | ||
| .github | ||
| bench_util | ||
| cli | ||
| ext | ||
| runtime | ||
| test_ffi | ||
| test_napi | ||
| test_util | ||
| tools | ||
| .dlint.json | ||
| .dprint.json | ||
| .editorconfig | ||
| .gitattributes | ||
| .gitignore | ||
| .gitmodules | ||
| .rustfmt.toml | ||
| Cargo.lock | ||
| Cargo.toml | ||
| LICENSE.md | ||
| README.md | ||
| Releases.md | ||
| rust-toolchain.toml | ||
Deno
Deno is a simple, modern and secure runtime for JavaScript and TypeScript that uses V8 and is built in Rust.
Features
- Secure by default. No file, network, or environment access, unless explicitly enabled.
- Provides
web platform functionality and APIs,
e.g. using ES modules, web workers, and
fetch(). - Supports TypeScript out of the box.
- Ships only a single executable file.
- Built-in tooling including
deno test,deno fmt,deno bench, and more. - Includes a set of reviewed standard modules guaranteed to work with Deno.
- Supports npm.
Install
Shell (Mac, Linux):
curl -fsSL https://deno.land/install.sh | sh
PowerShell (Windows):
irm https://deno.land/install.ps1 | iex
Homebrew (Mac):
brew install deno
Chocolatey (Windows):
choco install deno
Scoop (Windows):
scoop install deno
Build and install from source using Cargo:
# Install the Protobuf compiler
apt install -y protobuf-compiler # Linux
brew install protobuf # macOS
# Build and install Deno
cargo install deno --locked
See deno_install and releases for other options.
Getting Started
deno run https://deno.land/std/examples/welcome.ts
Or setup a simple HTTP server:
Deno.serve((_req) => new Response("Hello, World!"));
Additional Resources
- The Deno Manual is a great starting point for additional examples, setting up your environment, using npm, and more.
- Runtime API reference documents all APIs built into Deno CLI.
- Deno Standard Modules do not have external dependencies and are reviewed by the Deno core team.
- deno.land/x is the registry for third party modules.
- Blog is where the Deno team shares important product updates and “how to”s about solving technical problems.
Contributing
We appreciate your help!
To contribute, please read our contributing instructions.