plyql/build/json-server.js

A SQL-like interface for Plywood

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var http = require("http");
var express = require("express");
var bodyParser = require("body-parser");
var compress = require("compression");
function createJSONServer(port, queryProcessor) {
    var app = express();
    app.disable('x-powered-by');
    app.use(compress());
    app.get('/health', function (req, res) {
        res.send("I am healthy @ " + new Date().toISOString());
    });
    app.use(bodyParser.json());
    app.post('/plyql', function (req, res) {
        var sql = req.body.sql;
        if (typeof sql !== "string") {
            res.status(400).json({ error: "'sql' must be a string" });
            return;
        }
        console.log("Got SQL: " + sql);
        queryProcessor({ sql: sql }, res);
    });
    app.post('/plywood', function (req, res) {
        var expression = req.body.expression;
        if (typeof expression === "undefined") {
            res.status(400).json({ error: "'expression' must be defined" });
            return;
        }
        console.log("Got expression");
        queryProcessor({ expression: expression }, res);
    });
    app.use(function (err, req, res, next) {
        res.status(err.status || 500);
        res.json({ error: err.message });
    });
    var server = http.createServer(app);
    server.on('error', function (error) {
        if (error.syscall !== 'listen') {
            throw error;
        }
        switch (error.code) {
            case 'EACCES':
                console.error("Port " + port + " requires elevated privileges");
                process.exit(1);
                break;
            case 'EADDRINUSE':
                console.error("Port " + port + " is already in use");
                process.exit(1);
                break;
            default:
                throw error;
        }
    });
    server.on('listening', function () {
        var address = server.address();
        console.log('PlyQL server listening on port: ' + address.port);
    });
    app.set('port', port);
    server.listen(port);
}
exports.createJSONServer = createJSONServer;