awesome-compose/react-express-mongodb/backend/db/index.js

33 lines
943 B
JavaScript
Raw Normal View History

/**
* Created by Syed Afzal
*/
const mongoose = require("mongoose");
exports.connect = (app) => {
const options = {
useNewUrlParser: true,
autoIndex: false, // Don't build indexes
reconnectTries: 30, // Retry up to 30 times
reconnectInterval: 500, // Reconnect every 500ms
poolSize: 10, // Maintain up to 10 socket connections
// If not connected, return errors immediately rather than waiting for reconnect
bufferMaxEntries: 0,
};
const connectWithRetry = () => {
mongoose.Promise = global.Promise;
console.log("MongoDB connection with retry");
mongoose
.connect(process.env.MONGODB_URI, options)
.then(() => {
console.log("MongoDB is connected");
app.emit("ready");
})
.catch((err) => {
console.log("MongoDB connection unsuccessful, retry after 2 seconds.");
setTimeout(connectWithRetry, 2000);
});
};
connectWithRetry();
};