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Installation Guide

Install Nuxt

Set up a Nuxt project first. It can also be installed on Nuxt projects already in use.

Nuxt Official : Installation

Install Packages

Install packages in the project directory.

cd my-nuxt-project
npm i nuxt-aws-lambda
npm i serverless serverless-nuxt-plugin serverless-apigw-binary serverless-domain-manager -D

Install nuxt-start and install nuxt again as a dev package. No build-related packages are required when running on Lambda. And It reduce the package size to be uploaded to Lambda. (Max package size is 250MB.)

npm i nuxt-start
npm i nuxt -D

Install the env-cmd package to set environment variables.

npm i env-cmd -D

Domain Settings

Nuxt does not support the form of the API Gateway URL(https://***.execute-api.ap-southeast-2.amazonaws.com/dev). You must remove the default path (/dev) included after the URL. To do this, you connect your domain to API Gatway. Use the pre-installed serverless-domain-manager package.

Get a certificate using AWS ACM. Regions must be set to "US East 1"(N Virginia, us-east-1).

https://console.aws.amazon.com/acm/home?region=us-east-1#/

ACM - add domain

Wait 5 minutes and the Status changes to Issued. Once you confirm that it has been changed to Issued, proceed to the next step.

ACM - check status

Create Files

Create a .env-cmdrc.js file.

module.exports = {
  local: {
    NODE_ENV: 'development',
    PORT: '8080',

    // API_URL: 'https://api.dev.my-nuxt-project.com', // If you are using the `@nuxtjs/axios` package, you need to set environment variables.
  },
  prod: {
    DOMAIN_NAME: 'my-nuxt-project.com', // Enter the domain created above.
    NODE_ENV: 'production',
    NUXT_TELEMETRY_DISABLED: '1',

    // API_URL: 'https://api.my-nuxt-project.com', // If you are using the `@nuxtjs/axios` package, you need to set environment variables.
  },
}

Check the package.json file. Never mind the dependencies version.

{
  "name": "my-nuxt-project",
  "version": "0.0.0",
  "private": true,
  "scripts": {
    "dev": "env-cmd -e local nuxt",
    "deploy": "env-cmd -e prod sls deploy --stage prod"
  },
  "dependencies": {
    "nuxt-start": "^2.11.0",
    "nuxt-aws-lambda": "^1"
  },
  "devDependencies": {
    "env-cmd": "^10.1.0",
    "nuxt": "^2.11.0",
    "serverless": "^1.67.0",
    "serverless-apigw-binary": "^0.4.4",
    "serverless-domain-manager": "^3.3.1",
    "serverless-nuxt-plugin": "^1"
  }
}

Create a serverless.yml file. Use the Cloud Formations to upload assets(.nuxt/dist/client) files to the AWS S3 bucket. If you have an S3 bucket already created, remove Cloud Formation information(resources section).

Write your plugin settings in the custom.nuxt field. The version(custom.nuxt.version) is used as a prefix when uploading assets files to S3.

service: my-nuxt-project # your project name

plugins:
  - serverless-nuxt-plugin
  - serverless-apigw-binary
  - serverless-domain-manager

provider:
  name: aws
  region: ap-northeast-2 # Region to use
  stage: ${opt:stage, 'dev'}
  runtime: nodejs12.x
  environment:
    NODE_ENV: ${env:NODE_ENV}
    # API_URL: ${env:API_URL} # If you are using the `@nuxtjs/axios` package, you need to set environment variables.

custom:
  customDomain:
    domainName: ${env:DOMAIN_NAME}
  apigwBinary:
    types:
      - 'image/*'
  nuxt:
    version: v${file(./package.json):version}
    bucketName: my-nuxt-project-${self:provider.stage} # Asset Path https://my-nuxt-project-prod.s3.amazonaws.com/v1.3.1/

resources:
  Resources:
    AssetsBucket:
      Type: AWS::S3::Bucket
      Properties:
        BucketName: ${self:custom.nuxt.bucketName}
        CorsConfiguration:
          CorsRules:
            - AllowedMethods:
              - GET
              - HEAD
              AllowedOrigins:
              - https://${env:DOMAIN_NAME}

functions:
  nuxt:
    memorySize: 2048
    timeout: 30
    handler: handler.render
    events:
      # lambda warmer
      # - schedule: rate(5 minutes)
      - http: ANY /
      - http: ANY /{proxy+}

You can modify the existing Nuxt configuration file (nuxt.config.js) to fit the following format:

// Change "export default" => "module.exports ="
module.exports = {
  target: 'server',
  head: {
    /* ... */
  },
  build: {
    // The "publicPath" value is automatically generated by the serverless-nuxt plug-in
    publicPath: process.env.SERVERLESS_NUXT_PUBLIC_PATH,
  },
}

Finally, the handler(handler.js) is written as:

const { createNuxtHandler } = require('nuxt-aws-lambda')
const config = require('./nuxt.config.js')

module.exports.render = createNuxtHandler(config)

Deploy

Now let's upload the project to AWS.

Create a domain. You only need to do this once when creating a project.

npx env-cmd -e prod sls create_domain

Deploy your project to AWS Lambda using serverless.

npm run deploy

Deploy without Build

SERVERLESS_NUXT_SKIP_BUILD=1 npm run deploy