const express = require('express');
const neo4j = require('neo4j-driver').v1;
const winston = require('winston');
const cors = require('cors');
const jwt = require('express-jwt');
const gkeLogger = require('winston-gke');
// Pass when sitting behind load-balancer on a route (e.g. '/ledger-graph')
const MOUNT_PATH = process.env.MOUNT_PATH || '';
// Initialize app, neo4j connection, logger and auth
const app = express();
const neo = neo4j.driver(process.env.NEO_ADDRESS || 'bolt://neo4j',
neo4j.auth.basic(process.env.NEO_USER || 'neo4j',
process.env.NEO_PASS || 'neo4j'));
const logger = gkeLogger(new winston.Logger());
const auth = jwt({
secret: new Buffer(process.env.AUTH_CLIENT_SECRET || '', 'base64'),
audience: process.env.AUTH_CLIENT_ID || ''
});
// Pull version from file if available
let version;
try {
version = fs.readFileSync('./VERSION', 'utf-8').trim();
} catch (e) {
version = 'local';
}
// trust the proxies
const callbackToPromise = require('promise-callback')
const logLevel = process.env.LOG_LEVEL || 'info'
const port = process.env.PORT || 3001
const redisUri = process.env.REDIS_URI
// do not let start process without the DB uri, helps devops
if (!redisUri) {
throw new Error('REDIS_URI is required')
}
const app = Express()
const redis = Redis(redisUri)
// configure winston for Google Cloud log format
logger.remove(logger.transports.Console)
winstonGke(logger, logLevel)
// router
app.get('/', (req, res) => {
redis.get('foo')
.then((foo) => res.json({
foo
}))
.catch((err) => next(err))
})
// health check
app.get('/healthz', (req, res, next) => {
redis.ping()
.then(() => res.sendStatus(200))
.catch((err) => next(err))