https://github.com/statianzo/pmrpc

JSON-RPC over postMessage
https://github.com/statianzo/pmrpc

Last synced: about 2 months ago
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JSON-RPC over postMessage

• Host: GitHub
• URL: https://github.com/statianzo/pmrpc
• Owner: statianzo
• License: isc
• Created: 2018-09-20T22:32:03.000Z (about 6 years ago)
• Default Branch: master
• Last Pushed: 2020-05-03T20:36:01.000Z (over 4 years ago)
• Last Synced: 2024-10-06T14:05:33.345Z (2 months ago)
• Language: TypeScript
• Size: 55.7 KB
• Stars: 6
• Watchers: 3
• Forks: 2
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

• awesome-json-rpc - pmrpc - JSON-RPC over html5 postMessage (Libraries)

README

        
# @statianzo/pmrpc

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

JSON-RPC implemented using postMessage API

## Installation

```sh

npm install @statianzo/pmrpc

```

## Usage

### iframe within parent

```js

import JsonRpc from './JsonRpc';

const rpc = new JsonRpc({

  methods: {

    greet: name => `Hello ${name}`

  },

  source: window

});

```

### Parent window

```js

import JsonRpc from './JsonRpc';

const rpc = new JsonRpc({

  destination: iframe.contentWindow

});

rpc

  .call('greet', 'World')

  .then(response => {

    console.log(response); // "Hello World"

  });

```

## JsonRpc Options

- `origin` - (Default: `*`) Origin to send messages

- `methods` - (Default: `{}`) An object of exposed methods. Returning a Promise will defer responding until the promise has completed

- `source` - The source EventTarget to mount JSON rpc on (`Window`, `MessagePort`, etc)

- `destination` - Target MessageEventSource to send requests to

## API

### JsonRpc.apply(method, [arg1, arg2, ...])

Invoke a remote rpc method with an array of arguments (like `Function.apply`).

Returns a `Promise` with the result of the request. Errors from the endpoint

will result in a rejected promise.

### JsonRpc.call(method, ...args)

Invoke a remote rpc method with a variadic list of arguments (like

`Function.call`). Returns a `Promise` with the result of the request.

Errors from the endpoint will result in a rejected promise.

### JsonRpc.mount(source)

Mount JsonRpc to a source EventTarget (Window, MessagePort, Worker). This is

called automatically when a `source` is passed to the constructor.

### JsonRpc.unmount()

Detach the event listener from the JsonRpc instance's `source`