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‎.babelrc‎

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{
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"plugins": ["source-map-support", "transform-runtime"],
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"presets": [
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["env", {
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"targets": {
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"node": "8.10"
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},
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"useBuiltIns": true
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}],
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"stage-3"
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]
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}

‎.gitignore‎

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# package directories
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node_modules
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jspm_packages
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# Serverless directories
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.serverless
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.webpack
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npm-debug.log*
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yarn-debug.log*
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yarn-error.log*
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# Intellij IDEA
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.idea
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*.iml
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# VisualStudioCode
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.vscode/*
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!.vscode/settings.json
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!.vscode/tasks.json
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!.vscode/launch.json
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!.vscode/extensions.json
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.history

‎README.md‎

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# aws-nodejs8-koa
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This is a template you can use to quickly create a Koa-based Serverless service with configured
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`serverless-webpack`, `serverless-offline`, and optionally `serverless-dynamodb-local`. It uses
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`serverless-http` to wrap a Koa application. We added AWS SDK for your convenience as well.
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If you don't need Koa and just need configured Serverless plugins, check out our other template:
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[aws-nodejs8-webpack-offline](https://github.com/aproint/aws-nodejs8-webpack-offline)
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## How to use
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```
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sls create --template-url https://github.com/aproint/aws-nodejs8-koa --path myservice
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```

‎package.json‎

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{
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"name": "aws-nodejs8-koa",
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"version": "1.0.0",
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"license": "MIT",
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"private": true,
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"devDependencies": {
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"babel-core": "^6.26.3",
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"babel-loader": "^7.1.4",
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"babel-plugin-source-map-support": "^2.0.1",
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"babel-plugin-transform-runtime": "^6.23.0",
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"babel-preset-env": "^1.7.0",
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"babel-preset-stage-3": "^6.24.1",
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"serverless-offline": "^3.25.4",
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"serverless-webpack": "^5.1.5",
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"webpack": "^4.12.0",
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"webpack-node-externals": "^1.7.2"
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},
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"dependencies": {
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"aws-sdk": "^2.255.1",
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"babel-runtime": "^6.26.0",
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"koa": "^2.5.1",
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"koa-bodyparser": "^4.2.1",
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"koa-router": "^7.4.0",
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"serverless-dynamodb-local": "^0.2.30",
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"serverless-http": "^1.5.5",
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"source-map-support": "^0.5.6"
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},
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"scripts": {
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"fixdb": "sls dynamodb remove && sls dynamodb install",
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"start": "sls offline start"
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}
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}

‎serverless.yml‎

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# Welcome to Serverless!
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#
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# This file is the main config file for your service.
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# It's very minimal at this point and uses default values.
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# You can always add more config options for more control.
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# We've included some commented out config examples here.
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# Just uncomment any of them to get that config option.
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#
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# For full config options, check the docs:
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# docs.serverless.com
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#
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# Happy Coding!
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service: aws-nodejs8-koa
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# You can pin your service to only deploy with a specific Serverless version
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# Check out our docs for more details
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# frameworkVersion: "=X.X.X"
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# The plugins need to be ordered as follows.
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plugins:
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- serverless-webpack
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# Uncomment to add local dynamodb support
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# - serverless-dynamodb-local
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- serverless-offline
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custom:
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webpack:
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includeModules:
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forceExclude:
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- aws-sdk
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packager: 'yarn' # Packager that will be used to package your external modules
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# dynamodb:
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# start:
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# migrate: true
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# seed: false
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serverless-offline:
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#httpsProtocol: "dev-certs"
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#port: 4000
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provider:
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name: aws
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runtime: nodejs8.10
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# you can overwrite defaults here
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# stage: dev
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# region: us-east-1
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# you can add statements to the Lambda function's IAM Role here
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# iamRoleStatements:
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# - Effect: "Allow"
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# Action:
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# - "s3:ListBucket"
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# Resource: { "Fn::Join" : ["", ["arn:aws:s3:::", { "Ref" : "ServerlessDeploymentBucket" } ] ] }
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# - Effect: "Allow"
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# Action:
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# - "s3:PutObject"
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# Resource:
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# Fn::Join:
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# - ""
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# - - "arn:aws:s3:::"
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# - "Ref" : "ServerlessDeploymentBucket"
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# - "/*"
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# you can define service wide environment variables here
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# environment:
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# variable1: value1
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# you can add packaging information here
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#package:
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# include:
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# - include-me.js
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# - include-me-dir/**
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# exclude:
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# - exclude-me.js
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# - exclude-me-dir/**
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functions:
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hello:
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handler: src/handler.server
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events:
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- http:
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path: / # this matches the base path
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method: ANY
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cors: true
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- http:
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path: /{any+} # this matches any path, the token 'any' doesn't mean anything special
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method: ANY
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cors: true
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# The following are a few example events you can configure
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# NOTE: Please make sure to change your handler code to work with those events
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# Check the event documentation for details
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# events:
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# - http:
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# path: users/create
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# method: get
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# - s3: ${env:BUCKET}
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# - schedule: rate(10 minutes)
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# - sns: greeter-topic
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# - stream: arn:aws:dynamodb:region:XXXXXX:table/foo/stream/1970-01-01T00:00:00.000
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# - alexaSkill: amzn1.ask.skill.xx-xx-xx-xx
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# - alexaSmartHome: amzn1.ask.skill.xx-xx-xx-xx
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# - iot:
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# sql: "SELECT * FROM 'some_topic'"
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# - cloudwatchEvent:
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# event:
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# source:
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# - "aws.ec2"
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# detail-type:
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# - "EC2 Instance State-change Notification"
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# detail:
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# state:
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# - pending
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# - cloudwatchLog: '/aws/lambda/hello'
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# - cognitoUserPool:
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# pool: MyUserPool
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# trigger: PreSignUp
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# Define function environment variables here
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# environment:
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# variable2: value2
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# You can add CloudFormation resource templates here
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#resources:
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# Resources:
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# yourDynamoDbTable:
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# Type: AWS::DynamoDB::Table
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# Properties:
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# TableName: YourDynamoDbTable
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# AttributeDefinitions:
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# - AttributeName: id
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# AttributeType: S
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# KeySchema:
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# - AttributeName: id
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# KeyType: HASH
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# ProvisionedThroughput:
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# ReadCapacityUnits: 5
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# WriteCapacityUnits: 5
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# NewResource:
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# Type: AWS::S3::Bucket
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# Properties:
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# BucketName: my-new-bucket
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# Outputs:
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# NewOutput:
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# Description: "Description for the output"
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# Value: "Some output value"

‎src/handler.js‎

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import serverless from 'serverless-http'
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import Koa from 'koa'
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import Router from 'koa-router'
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import bodyParser from 'koa-bodyparser'
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const app = new Koa()
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const router = new Router()
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const getResult = async (id) => new Promise((resolve, reject) => {
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resolve((id % 2 === 0) ? 'odd' : 'even')
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})
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router.get('/:id', async (ctx) => {
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ctx.body = await getResult(ctx.params.id)
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})
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app.use(bodyParser())
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app.use(router.routes())
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app.use(router.allowedMethods())
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export const server = serverless(app)

‎webpack.config.js‎

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const slsw = require('serverless-webpack');
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const nodeExternals = require("webpack-node-externals");
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module.exports = {
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entry: slsw.lib.entries,
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target: "node",
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// Generate sourcemaps for proper error messages
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devtool: 'source-map',
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// Since 'aws-sdk' is not compatible with webpack,
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// we exclude all node dependencies
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externals: [nodeExternals()],
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mode: slsw.lib.webpack.isLocal ? "development" : "production",
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optimization: {
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// We no not want to minimize our code.
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minimize: false
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},
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performance: {
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// Turn off size warnings for entry points
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hints: false
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},
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// Run babel on all .js files and skip those in node_modules
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module: {
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rules: [
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{
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test: /\.js$/,
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loader: "babel-loader",
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include: __dirname,
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exclude: /node_modules/
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}
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]
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}
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};

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