Setup Nest on Cloud Functions
Setting up NestJS on Firebase Cloud Functions allows you to leverage the power of NestJS in serverless environments. Below are two different techniques for achieving this integration.
Option A - Point a Function to Nest
This setup modifies the functions configuration to use the Nest /dist output instead of the default functions directory. It’s suitable for existing Nest applications.
Step 1 - Create Nest App
Generate a new Nest app and remove the automatically generated functions directory.
Step 2 - Add Functions
Initialize Firebase Functions and update the Firebase config to point to the Nest app.
Step 3 - Install Dependencies
Install necessary dependencies for Firebase Functions and NestJS.
Step 4 - Update the package.json
Set the main entry point to the Nest /dist directory in the package.json file.
Step 5 - Export the Server
Create a file to export the Nest server as a Firebase Cloud Function.
Step 6 - Build, Serve, Deploy
Build the Nest app, serve it locally, and deploy it to Firebase Cloud Functions.
Option B - Add Nest to the Functions Source
In this setup, NestJS is added directly to the Firebase Functions source code. It’s suitable for integrating NestJS with existing background functions.
Step 1 - Initialize Cloud Functions
Initialize Firebase Cloud Functions and choose the TypeScript option.
Step 2 - Install NestJS
Install NestJS and necessary dependencies for Firebase Functions.
Step 3 - Add NestCLI Support
Add support for NestCLI by creating a nest-cli.json file.
Step 4 - Update the TS Config
Update the TypeScript configuration to support NestJS features.
Step 5 - Generate an App Module
Generate an AppModule and a Controller using the NestCLI.
Step 6 - Create the Server
Create a Nest server and wrap it in a Cloud Function.
Step 7 - Build, Serve, Deploy
Serve the Nest app locally and deploy it to Firebase Cloud Functions.
Following these steps will enable you to run NestJS on Firebase Cloud Functions efficiently, providing a scalable and powerful backend solution for your applications.