TCP in React Native

node's net API in React Native

Install

- Create a new react-native project. Check react-native getting started

- In your project dir:

``
npm install @photon-sdk/react-native-tcp --save
`

if using Cocoapods

Update the following line with your path to node_modules/ and add it to your
podfile:

`ruby
pod 'TcpSockets', :path => '../node_modules/react-native-tcp'
`

Link in the native dependency

`
react-native link @photon-sdk/react-native-tcp
`

Additional dependencies

$3

1. install rn-nodeify as a dev-dependency
npm install --save-dev rn-nodeify
2. run rn-nodeify manually
rn-nodeify --install stream,process,util --hack
3. optionally you can add this as a postinstall script
"postinstall": "rn-nodeify --install stream,process,util --hack"

Usage

$3

_only if you want to write require('net') or require('tls') in your javascript_

`json
{
"react-native": {
"net": "@photon-sdk/react-native-tcp",
"tls": "@photon-sdk/react-native-tcp/tls"
}
}
`

$3

_see/run index.ios.js/index.android.js for a complete example, but basically it's just like net_

`js
var net = require("net");
var net = require("tls");
// OR, if not shimming via package.json "react-native" field:
// var net = require('@photon-sdk/react-native-tcp')
// var tls = require('@photon-sdk/react-native-tcp/tls')

var server = net
.createServer(function(socket) {
socket.write("excellent!");
})
.listen(12345);

var client = net.createConnection(12345);

client.on("error", function(error) {
console.log(error);
});

client.on("data", function(data) {
console.log("message was received", data);
});
`

$3

TLS is only supported in the client interface. To use TLS, use the tls.connect()
syntax and not socket = new tls.Socket() syntax.

`
const socket = tls.connect({port: 50002, host:'electrum.villocq.com', rejectUnauthorized: false}, () => {
socket.write('{ "id": 5, "method": "blockchain.estimatefee", "params": [2] }\n')
console.log('Connected')
})

socket.on('data', (data) => {
console.log('data:' + data.toString('ascii'))
})
``