31 lines
922 B
TypeScript
31 lines
922 B
TypeScript
import {MongoClient} from "mongodb";
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if (!process.env.MONGODB_URI) {
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throw new Error('Invalid/Missing environment variable: "MONGODB_URI"');
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}
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const uri = process.env.MONGODB_URI || "";
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const options = {};
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let client: MongoClient;
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if (process.env.NODE_ENV === "development") {
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// In development mode, use a global variable so that the value
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// is preserved across module reloads caused by HMR (Hot Module Replacement).
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let globalWithMongo = global as typeof globalThis & {
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_mongoClient?: MongoClient;
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};
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if (!globalWithMongo._mongoClient) {
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globalWithMongo._mongoClient = new MongoClient(uri, options);
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}
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client = globalWithMongo._mongoClient;
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} else {
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// In production mode, it's best to not use a global variable.
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client = new MongoClient(uri, options);
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}
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// Export a module-scoped MongoClient. By doing this in a
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// separate module, the client can be shared across functions.
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export default client;
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