📻 Jambox 📻

Record & Playback requests.

Install

yarn add -D jambox

Usage

jam

Prepend jam to whatever command you are using to run next for example

{
  "scripts": {
    "dev": "jam next dev"
  }
}

Or without changing an existing command

$(yarn bin jam) yarn dev

Browser

Each command auto starts a proxy server.

For example

yarn jam http://my-site-url.com

or create a re-usable script if you don't want to type this out every time

{
  "scripts": {
    "view": "jam http://my-site-url.com"
  }
}

jam-server [sub-command] [--port]

Launches a jambox server, you shoulnd't have to start one manually. These are launched by the jam command if one isn't already running.

See sub-commands below.

ping

yarn jam-server ping

Attempt to ping a currently running jambox server

shutdown

yarn jam-server shutdown

Attempt to shutdown a currently running jambox server

tail

yarn jam-server tail

Tail the current logfile

Config (in-progress)

Currently jambox.config.js is the default config path.

Changing the config file resets the jambox server in order to use the changed options. Any cache values not persisted to file(s) are abanadoned when a jam server is reset.

Here is a kitchen sink example of a config that:

• blocks any non mocked request
• proxies any http://my-site-url.com request to localhost
• in addition to HTTP requests also proxies Weboscket requests
• ignores some requests entirely
• caches specific paths and persists them to disk with write: 'auto'
• auto responds with static codes/messages to things like images and logs

// Example config
module.exports = {
  blockNetworkRequests: true,
  // A map of a original:destination host
  forward: {
    // Forward all admin requests to a local App
    'http://my-site-url.com': {
      target: 'http://localhost:3000',
      paths: [
        // Match all paths
        '**',
        // Ignore the following paths, send them to the real server
        '!**/graphql',
        '!**/log',
      ],
      // Match websockets (support for NextJS local dev)
      websocket: true,
      // Enable automatic cors support
      // Useful for local servers which do not implement OPTIONS handlers
      // An object of custom OPTIONS respond Headers could be provided as well
      // default: false
      cors: true,
    },
  },
  stub: {
    '**/*.png': 204,
    // It's possible to respond with placeholder images instead of blank/broken 204s
    // Note that you must spcify a filepath, not file contents
    '**/*.jpg': { status: 200, file: 'placeholder.jpg', preferNetwork: true },
    '**/*.ico': 204,
    '**/log': { status: 200, statusMessage: 'stub log' },
  },
  cache: {
    write: 'auto',
    // Match a hostname + pathname string
    stage: ['**/graphql'],
    ignore: ['**/log'],
  },
};