Created
June 2, 2024 11:10
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Deploy NEST.JS to Vercel Serverless Functions
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| // vercel.json | |
| { | |
| "version": 2, | |
| "builds": [ | |
| { | |
| "src": "package.json", | |
| "use": "@vercel/static-build", | |
| "config": { | |
| "distDir": "public" | |
| } | |
| }, | |
| { | |
| "src": "vercel-func.js", | |
| "use": "@vercel/node" | |
| } | |
| ], | |
| "routes": [ | |
| { | |
| "src": "/(.*)", | |
| "dest": "vercel-func.js" | |
| } | |
| ] | |
| } | |
| // vercel-func.js | |
| import { HttpAdapterHost } from '@nestjs/core'; | |
| import { getBootstrapApp } from './dist/main'; | |
| // Keep the app instance in memory for subsequent requests | |
| let app; | |
| export default async function handler(req, res) { | |
| // This will be called on cold start | |
| if (!app) app = await getBootstrapApp(); | |
| const adapterHost = app.get(HttpAdapterHost); | |
| const httpAdapter = adapterHost.httpAdapter; | |
| const instance = httpAdapter.getInstance(); | |
| instance(req, res); | |
| } |
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