https://github.com/dmjio/servant-wasm

Servant support for delivering WebAssembly
https://github.com/dmjio/servant-wasm

haskell servant wasm

Last synced: 4 days ago
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Servant support for delivering WebAssembly

• Host: GitHub
• URL: https://github.com/dmjio/servant-wasm
• Owner: dmjio
• License: bsd-3-clause
• Created: 2020-05-16T21:28:16.000Z (over 4 years ago)
• Default Branch: master
• Last Pushed: 2020-05-17T10:46:14.000Z (over 4 years ago)
• Last Synced: 2024-09-25T00:09:24.774Z (9 days ago)
• Topics: haskell, servant, wasm
• Language: Haskell
• Homepage: https://hackage.haskell.org/package/servant-wasm
• Size: 9.77 KB
• Stars: 4
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md
  • License: LICENSE

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README

        
servant-wasm

==========================

[![Hackage](https://img.shields.io/hackage/v/servant-wasm.svg)](http://hackage.haskell.org/package/servant-wasm)

[![Haskell Programming Language](https://img.shields.io/badge/language-Haskell-green.svg)](https://haskell.org)

[![BSD3 LICENSE](https://img.shields.io/github/license/mashape/apistatus.svg)](https://github.com/dmjio/servant-wasm/blob/master/LICENSE)

[![Build Status](https://travis-ci.org/dmjio/servant-wasm.svg?branch=master)](https://travis-ci.org/dmjio/servant-wasm)

Content-Type support for delivering WASM with [servant](https://github.com/haskell-servant/servant)

### Usage

```haskell

{-# LANGUAGE DataKinds         #-}

{-# LANGUAGE TypeOperators     #-}

{-# LANGUAGE TypeApplications  #-}

{-# LANGUAGE OverloadedStrings #-}

module Main where

import           Control.Monad.IO.Class     (liftIO)

import qualified Data.ByteString            as B

import           Data.ByteString            (ByteString)

import           Data.Proxy                 (Proxy (Proxy))

import           Network.Wai.Handler.Warp   (run)

import           Servant.Server             (serve, Handler)

import           Servant.API                ((:>), Get)

import           Servant.WASM               (WASM)

type API = "wasm" :> Get '[WASM] ByteString

main :: IO ()

main = do

  putStrLn "Running on 3000..."

  run 3000 (serve (Proxy @ API) wasmHandler)

wasmHandler :: Handler ByteString

wasmHandler = liftIO (B.readFile "hello.wasm")

```

and corresponding JS to fetch WASM client-side.

```js

const importObject = {};

WebAssembly.instantiateStreaming(fetch('/wasm'), importObject).then(results => {

  // Do something with the results!

});

```