npm workspace integration

app/lib/dbConnect.js

@@ -0,0 +1,45 @@
+import mongoose from 'mongoose'
+
+const MONGODB_URI = process.env.MONGODB_URI
+
+if (!MONGODB_URI) {
+  throw new Error(
+    'Please define the MONGODB_URI environment variable inside .env.local'
+  )
+}
+
+/**
+ * Global is used here to maintain a cached connection across hot reloads
+ * in development. This prevents connections growing exponentially
+ * during API Route usage.
+ */
+let cached = global.mongoose
+
+if (!cached) {
+  cached = global.mongoose = { conn: null, promise: null }
+}
+
+async function dbConnect () {
+  if (cached.conn) {
+    return cached.conn
+  }
+
+  if (!cached.promise) {
+    const opts = {
+      // useNewUrlParser: true,
+      // useUnifiedTopology: true,
+      // bufferCommands: false,
+      // bufferMaxEntries: 0,
+      // useFindAndModify: true,
+      // useCreateIndex: true
+    }
+
+    cached.promise = mongoose.connect(MONGODB_URI, opts).then(mongoose => {
+      return mongoose
+    })
+  }
+  cached.conn = await cached.promise
+  return cached.conn
+}
+
+export default dbConnect

app/lib/mongodb.js

@@ -1,29 +0,0 @@
-import { MongoClient } from 'mongodb'
-
-const uri = process.env.MONGODB_URI
-const options = {}
-
-let client
-let clientPromise
-
-if (!process.env.MONGODB_URI) {
-  throw new Error('Please add your Mongo URI to .env.local')
-}
-
-if (process.env.NODE_ENV === 'development') {
-  // In development mode, use a global variable so that the value
-  // is preserved across module reloads caused by HMR (Hot Module Replacement).
-  if (!global._mongoClientPromise) {
-    client = new MongoClient(uri, options)
-    global._mongoClientPromise = client.connect()
-  }
-  clientPromise = global._mongoClientPromise
-} else {
-  // In production mode, it's best to not use a global variable.
-  client = new MongoClient(uri, options)
-  clientPromise = client.connect()
-}
-
-// Export a module-scoped MongoClient promise. By doing this in a
-// separate module, the client can be shared across functions.
-export default clientPromise