plywood-postgres-requester/build/postgresRequester.js

Postgres requester for Plywood (within node)

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var plywood_base_api_1 = require("plywood-base-api");
var stream_1 = require("stream");
var pg_1 = require("pg");
var pgTypes = require("pg-types");
var parseDateUTC = require("postgres-date-utc");
pgTypes.setTypeParser(1700, pgTypes.getTypeParser(700));
pgTypes.setTypeParser(20, pgTypes.getTypeParser(21));
pgTypes.setTypeParser(1082, parseDateUTC);
pgTypes.setTypeParser(1114, parseDateUTC);
pgTypes.setTypeParser(1184, parseDateUTC);
function postgresRequesterFactory(parameters) {
    var locator = parameters.locator;
    if (!locator) {
        var host = parameters.host;
        if (!host)
            throw new Error("must have a `host` or a `locator`");
        locator = plywood_base_api_1.basicLocator(host, 5432);
    }
    var user = parameters.user;
    var password = parameters.password;
    var database = parameters.database;
    return function (request) {
        var query = request.query;
        var stream = new stream_1.Readable({
            objectMode: true,
            read: function () { }
        });
        locator()
            .then(function (location) {
            var client = new pg_1.Client({
                host: location.hostname,
                port: location.port || 5432,
                database: database,
                user: user,
                password: password,
                parseInputDatesAsUTC: true
            });
            client.on('drain', client.end.bind(client));
            client.connect();
            var q = client.query(new pg_1.Query(query));
            q.on('row', function (row) {
                stream.push(row);
            });
            q.on('error', function (err) {
                stream.emit('error', err);
            });
            q.on('end', function () {
                stream.push(null);
            });
        })
            .catch(function (err) {
            stream.emit('error', err);
        });
        return stream;
    };
}
exports.postgresRequesterFactory = postgresRequesterFactory;