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api.js
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api.js
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var metrics = require('./lib/metrics');
var express = require('express');
var app = express();
var async = require('async');
var _ = require('lodash');
var db = require('./lib/db');
var cache = require('./lib/cache');
var members = require('./lib/members');
var hansard = require('./lib/hansard');
var keywords = require('./lib/keywords');
var wordchoices = require('./lib/wordchoices');
var dates = require('./lib/dates');
var JSONStream = require('JSONStream');
var jsonp = require('./lib/jsonp');
var server;
var KEYWORD_LIMIT = 5;
function authorize(username, password) {
return 'tgm' === username && process.env.AUTHPASS === password;
}
var cors = function(req, res, next) {
res.header('Cache-Control', 'max-age=300');
res.header('Access-Control-Allow-Origin', '*');
res.header('Access-Control-Allow-Methods', 'GET');
res.header('Access-Control-Expose-Headers', 'If-None-Match,Etag');
res.header('Access-Control-Max-Age', '36000');
next();
};
app.configure(function(){
app.use(express.responseTime());
app.use(cors);
app.use(express.compress());
app.use(express.bodyParser());
app.use(cache.middleware());
app.use(app.router);
if (metrics.nodetime){
app.use(metrics.nodetime.expressErrorHandler());
}
app.use(express.errorHandler());
if (process.env.NODE_ENV === 'deliver'){
app.use(express.basicAuth(authorize));
}
});
app.get('/api/members/year', function(req, res, next){
var year = dates.getFrom(req.query.from);
if (!year) res.json([]);
members.findByYear(year, function(err, members){
if (err) return next(err);
jsonp.send(req, res, members);
});
});
app.get('/api/members', function(req, res, next){
members.find(req.query.from, req.query.to, function(err, members){
if (err) return next(err);
jsonp.send(req, res, members);
});
});
app.get('/api/keywords', function(req, res, next){
keywords.find(req.query, function(err, keywords) {
if (err) return next(err);
jsonp.send(req, res, keywords);
});
});
app.get('/api/dates', function(req, res, next){
dates.find(function(err, dates) {
if (err) return next(err);
jsonp.send(req, res, dates);
});
});
app.get('/api/weeks', function(req, res, next){
dates.weeks(function(err, weeks) {
if (err) return next(err);
jsonp.send(req, res, weeks);
});
});
if (process.env.ENABLE_WORDCHOICES || process.env.NODE_ENV === 'test'){
app.get('/api/wordchoices/term/:term', function(req, res, next){
var term = req.params.term && req.params.term.toLowerCase();
var exactMatch = req.query.c;
if (!term) return res.json([]);
wordchoices.forTerm(term, {exactMatch: exactMatch}, function(err, results){
if (err) return next(err);
cache.cacheWordchoices(term, exactMatch, results, function(err){
if (err) return next(err);
jsonp.send(req, res, results);
});
});
});
app.all('/api/hansards', function(req, res, next){
var ids = req.param('ids');
if (!ids) return next('No ids supplied');
hansard.createStream(ids, function(err, stream){
if (err) return next(err);
if (req.query.callback){
res.set('content-type', 'application/javascript');
res.write(req.query.callback + '([');
var first = true;
stream.on('data', function(record){
var json = JSON.stringify(record);
if (!first){
json = ", " + json;
}
first = false;
res.write(json);
});
stream.on('end', function(){
res.write(']);');
res.end();
});
stream.on('error', function(err){
next(err);
});
}else{
stream
.pipe(JSONStream.stringify())
.pipe(res);
}
});
});
app.get('/api/wordchoices/year/term/:term', function(req, res, next){
var term = req.params.term && req.params.term.toLowerCase();
var exactMatch = req.query.c;
var party = req.query.party;
if (!term) return res.json([]);
wordchoices.forTermByYear(term, exactMatch, party, function(err, results){
if (err) return next(err);
jsonp.send(req, res, results);
});
});
}
if (process.env.TEST_KILL){
app.get('/sleep', function(req, res, next){
db.query('select pg_sleep(50)', function(err){
jsonp.send(req,res, {});
});
});
}
module.exports = app;
if (!module.parent){
server = app.listen(process.env.PORT || 8080);
server.on('close', function(){
db.end();
});
}