gch-truefx-pricefeed

TrueFX price service

TrueFX price service hooks into the FREE fx price service offered by TrueFX and emits price updates on your selected currency pair via web sockets.

For more information on the implementation, please read the following article Full stack part 1: Creating an FX price feed

Table of Contents

1. Implementation
2. Demo
3. Contributing
4. License

Implementation

Dependencys

Assumptions : You have node and npm installed

1. You will need to register at http://www.truefx.com/ to get a username and password
2. socket.io - cheerio - request

Installation

1. install the node package from npm via the following command.

npm install gch-truefx-priceservice

Usage

1. Create trueFXConfig constructor object using your username and password from truefx and a delimeted list of currency pairs.

var trueFXConfig = {
    userName:'trueFXuserName',
    password:'trueFXPassword',
    curPairs : 'EUR/CAD,GBP/USD,EUR/JPY,GBP/JPY,GBP/CAD,EUR/AUD'
};

1. Set up your socket server with your http server

var io  = require('socket.io');
io = io.listen(server);

1. Call the fxprice-srv constructor

     require('gch-truefx-pricefeed')(io,trueFXConfig);

API

The following event is emmited from the fx price service

socket.emit('fxPriceUpdate', {
        payload: fxPriceData
});

A client needs to be capturing the `fxPriceUpdate' event.

In the demo example, angular and the socket.io library is used to handle the event.

        $scope.$on('socket:fxPriceUpdate', function(event, data) {
 
            $scope.rates  =  data.payload;
 
        });

Payload

The returned object in the payload is an array of symbolVO's ( value objects ). Each indivdual VO has the follwoing structure.

        {
            symbol: '',
            timeStamp: '',
            bidBig: '',
            bidPoint: '',
            offerBig: '',
            offerPoint: '',
            high: '',
            low: '',
            mid: '',
            bidBullBear: '' ,
            offerBullBear: ''
        };

Back to top

Demo

Please see the READme in the Demo folder for instruction on how to get the demo up and running.

Contributing

Open an issue first to discuss potential changes/additions.

License

(The MIT License)

Copyright (c) 2014 Bill Gooch

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the 'Software'), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

    The above copyright notice and this permission notice shall be

included in all copies or substantial portions of the Software.

    THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
    EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.