Bun v0.5.7

# Install using curl
curl -fsSL https://bun.dev.org.tw/install | bash

# Install using npm
# npm install -g bun

# Upgrade
bun upgrade

const formData = new FormData();
formData.set("attachment-id", crypto.randomUUID());
formData.set("attachment", Bun.file("./package.json"));
const response = await fetch("https://example.com/upload", {
  method: "POST",
  body: formData,
});

export default {
  async fetch(request: Request): Promise<Response> {
    const formData = await request.formData();
    const file = formData.get("attachment");
    // ...
    return new Response(file);
  },
};

{
  "dependencies": {
    "zod": "github:colinhacks/zod",
    "lodash": "git@github.com:lodash/lodash.git#4.17.21"
  }
}

bun install git@github.com:moment/moment.git

const timeout = setTimeout(() => {
  process.abort(); // this is not called, see `unref()` below
}, 1000);

timeout.unref();

// For compatibility, it still works as a number
const timeoutId = +timeout; // 1

await fetch("https://example.com", {
  // Abort if the response is not received after 1 second
  signal: AbortSignal.timeout(1000),
});

export default {
  async fetch(request: Request): Promise<Response> {
    request.signal.addEventListener("abort", () => {
      console.log("Client aborted the request");
    });
    // ...
    return new Response();
  },
};

error: expect(received).toEqual(expected)

  {
    abc: 123,
+   def: 456
-   def: 789
  }

- Expected  - 1
+ Received  + 1

error: Expected values to be equal:
	Expected: {
  abc: 123,
  def: 789
}
	Received: {
  abc: 123,
  def: 456
}

// import { test, expect } from "bun:test";

test("that it auto-imports expect()", () => {
  expect({
    abc: 123,
    def: 456,
  }).toEqual({
    abc: 123,
    def: 789,
  });
});

const a = new Set([1, 2, 3]);
const b = new Set([1, 3, 4, 5]);
const c = new Set([1, 3]);

console.log(a.union(b)); // [1, 2, 3, 4, 5]
console.log(a.intersection(b)); // [1, 3]
console.log(a.difference(b)); // [2]
console.log(a.symmetricDifference(b)); // [2, 4, 5]

export default {
  async fetch(request: Request): Promise<Response> {
    console.log(request.headers.get("x-amzn-function-arn"));
    // ...
    return new Response("Hello from Lambda!", {
      status: 200,
      headers: {
        "Content-Type": "text/plain",
      },
    });
  },
};

export default {
  async fetch(request: Request): Promise<Response> {
    const event = await request.json();
    // ...
    return new Response();
  },
};

- uses: oven-sh/setup-bun@v1
  with:
    bun-version: latest

- uses: oven-sh/setup-bun@v1
  with:
    bun-version: "0.5.7"

steps:
  - uses: actions/checkout@v3
  - uses: actions/setup-node@v3
    with:
      node-version: 16
+ - uses: oven-sh/setup-bun@v1
+   with:
+     bun-version: latest
+  - run: bun install
-  - run: npm install