flocore-node/api/lib/http.js
Manuel Araoz 6628263b31 readme
2015-04-30 07:13:59 -03:00

112 lines
2.4 KiB
JavaScript

'use strict';
var http = require('http');
var cors = require('cors');
var express = require('express');
var compress = require('compression');
var bodyParser = require('body-parser');
var morgan = require('morgan');
var bitcore = require('bitcore');
var $ = bitcore.util.preconditions;
var BitcoreNode = require('../../lib/node');
var routes = require('../routes');
function BitcoreHTTP(node, opts) {
$.checkArgument(node);
opts = opts || {};
this.node = node;
this.port = opts.port || 8080;
this.logging = opts.logging || false;
this.setupExpress();
}
BitcoreHTTP.create = function(opts) {
opts = opts || {};
var node = BitcoreNode.create(opts.BitcoreNode);
return new BitcoreHTTP(node, opts);
};
BitcoreHTTP.prototype.setupExpress = function() {
var app = express();
// parse POST data
app.use(cors());
app.use(compress());
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({
extended: false
}));
if (this.logging) {
app.use(morgan('dev'));
}
app.set('json spaces', 2);
// install routes
app.use('/', routes(this.node));
// catch 404 and forward to error handler
app.use(function(req, res) {
res.status(404).send('Not Found');
});
app.set('port', this.port);
var server = http.createServer(app);
server.on('error', this.onError.bind(this));
server.on('listening', this.onListening.bind(this));
this.app = app;
this.server = server;
};
/**
* Event listener for HTTP server "error" event.
*/
BitcoreHTTP.prototype.onError = function(error) {
if (error.syscall !== 'listen') {
throw error;
}
var bind = typeof port === 'string' ? 'Pipe ' + this.port : 'Port ' + this.port;
// handle specific listen errors with friendly messages
switch (error.code) {
case 'EACCES':
console.error(bind + ' requires elevated privileges');
process.exit(1);
break;
case 'EADDRINUSE':
console.error(bind + ' is already in use');
process.exit(1);
break;
default:
throw error;
}
};
/**
* Event listener for HTTP server "listening" event.
*/
BitcoreHTTP.prototype.onListening = function() {
var addr = this.server.address();
var bind = typeof addr === 'string' ? 'pipe ' + addr : 'port ' + addr.port;
console.log('Listening on ' + bind);
};
BitcoreHTTP.prototype.start = function() {
this.server.listen(this.port);
return this.node.start();
};
BitcoreHTTP.prototype.stop = function() {
return this.node.stop();
};
module.exports = BitcoreHTTP;