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elysia-msgpack

v1.0.0

Published

The library for elysia which allows you to work with MessagePack. To pack/unpack it, we use really fast msgpackr

Downloads

22

Readme

elysia-msgpack

The library for elysia which allows you to work with MessagePack. To pack/unpack it, we use really fast msgpackr

Installation

bun install elysia-msgpack

Usage

// @filename: server.ts
import Elysia from "elysia"
import { msgpack } from "elysia-msgpack"

const app = new Elysia()
    .use(msgpack())
    .post("/", ({ body, msgpack }) => {
        // body is unpacked MessagePack if content-type header contains application/x-msgpack


        //  also you can work with Packr instance via msgpack decorator

        // if accept header contains application/x-msgpack
        // this response will become a MessagePack,
        // and if not, it will remain JSON
        return {
            some: "values",
            and: true,
            keys: 228,
        }
    })
    .listen(3000);

    export AppType = typeof app;

It works fine with End-to-End Type Safety too!

// @filename: client.ts
import { treaty } from "@elysiajs/eden";
import { pack, unpack } from "msgpackr";
import type { AppType } from "./server";

const app = treaty<AppType>("localhost:4888", {
    onRequest: (path, { body }) => {
        return {
            headers: {
                "content-type": "application/x-msgpack",
                accept: "application/x-msgpack",
            },
            body: pack(body),
        };
    },
    onResponse: async (response) => {
        if (
            response.headers
                .get("Content-Type")
                ?.startsWith("application/x-msgpack")
        )
            return unpack(Buffer.from(await response.arrayBuffer()));
    },
});

const { data, error } = await app.index.post({
    some: 228,
});

console.log(data);

Options

All options of msgpackr constructor (but we set useRecords to false by default)

| Key | Type | Default | Description | | ------------- | -------------------------------------------------------------------- | ------------------------- | ------------------------------------------------------------------- | | contentTypes? | string[] | ["application/x-msgpack"] | An array of content-types that need to be serialized/deserialized | | force? | boolean | false | Don't look at the accept header to serialize? | | as? | LifeCycleType | "scoped" | Option to specify type of hooks |

new Elysia()
    .use(msgpack({
        mimeType: "application/some-another-msgpack-type",
        int64AsType: "string",
        // and other msgpackr constructor options
    }))

You can use Apidog to test the API with msgpack.