44 lines
907 B
JavaScript
44 lines
907 B
JavaScript
import mongoose from 'mongoose'
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const MONGODB_URI = process.env.MONGODB_URI
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if (!MONGODB_URI) {
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throw new Error(
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'Please define the MONGODB_URI environment variable inside .env.local'
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)
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}
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/**
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* Global is used here to maintain a cached connection across hot reloads
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* in development. This prevents connections growing exponentially
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* during API Route usage.
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*/
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let cached = global.mongoose
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if (!cached) {
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cached = global.mongoose = { conn: null, promise: null }
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}
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async function dbConnect () {
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if (cached.conn) {
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return cached.conn
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}
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if (!cached.promise) {
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const opts = {
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useNewUrlParser: true,
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useUnifiedTopology: true,
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bufferCommands: false
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}
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cached.promise = mongoose.connect(MONGODB_URI, opts)
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.then(mongoose => {
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return mongoose
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})
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}
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cached.conn = await cached.promise
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return cached.conn
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}
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export default dbConnect
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