natefaubion / trypurescript

PureScript in the browser

PureScript API

Very basic web service which wraps the PureScript compiler.

Client code

API

Compile PureScript code

POST /compile

• Request body: PureScript code
• Response body: Either { js: "..." } or { error: "..." }
• Status code: 200 (success)

The response does not use error codes, to make it easier to use the API from another domain using CORS.

The output code will contain references to preloaded modules using require calls. To run these files in the browser, it is necessary to either use a require shim (such as require1k), or replace these calls and deploy a bundle of precompiled modules (the Try PureScript client uses the second approach).

Configuration

The application takes the following arguments on the command line:

• port number
• a list of input source files

Example

dist/build/trypurescript/trypurescript 8081 'bower_components/purescript-*/src/**/*.purs'

Development

1. Client setup

git clone [e-mail]:purescript/trypurescript.git
cd trypurescript
git co gh-pages

bower install
npm run build
npm run bundle

httpserver 8080 #eg with: alias httpserver='python -m SimpleHTTPServer'
open http://localhost:8080

2. Work with local compile server

git clone [e-mail]:purescript/trypurescript.git
cd trypurescript

stack build

# use one of the backends
cd staging/core
# get the sources of the deps
psc-package update

# note: globs like **/src/** do not work
stack exec trypurescript 8081 ".psc-package/psc-0.11.6/*/*/src/**/*.purs" "src/*.purs"
# should output that is is compiling the sources (first time)
# then: Setting phasers to stun... (port 8081) (ctrl-c to quit)

3. Point client to local compile server

(instead of the ones at try.purescript.org)

# edit API.purs

  , compile: compile "http://localhost:8081"
  , getBundle: getDefaultBundle "http://localhost:8081"