【AWS】Serverless Frameworkメモ

npm install -g serverless@3.39.0

sls -v

# 出力例:
Framework Core: 3.39.0
Plugin: 7.2.3
SDK: 4.5.1

mkdir serverless-func
cd serverless-func

% sls

Creating a new serverless project
? What do you want to make? (Use arrow keys)
   AWS - Node.js - Starter 
❯ AWS - Node.js - HTTP API 
  AWS - Node.js - Scheduled Task 
  AWS - Node.js - SQS Worker 
  AWS - Node.js - Express API 
  AWS - Node.js - Express API with DynamoDB 
  AWS - Python - Starter 
  AWS - Python - HTTP API 
  AWS - Python - Scheduled Task 
  AWS - Python - SQS Worker 
  AWS - Python - Flask API 
  AWS - Python - Flask API with DynamoDB 
  Other

? What do you want to call this project? serverless-lambda

✔ Project successfully created in serverless-lambda folder

? Register or Login to Serverless Framework No
? Do you want to deploy now? No

What next?
Run these commands in the project directory:

serverless deploy    Deploy changes
serverless info      View deployed endpoints and resources
serverless invoke    Invoke deployed functions
serverless --help    Discover more commands

# 作成したプロジェクト配下へ移動
cd serverless-lambda

# 実行
## 書式： serverless invoke local --function <ファンクション名>
## 書式（エイリアス版）： sls invoke local -f <ファンクション名>
sls invoke local -f api

{
    "statusCode": 200,
    "body": "{\n  \"message\": \"Go Serverless v3.0! Your function executed successfully!\",\n  \"input\": \"\"\n}"
}

service: serverless-lambda
frameworkVersion: '3'

provider:
  name: aws
--   runtime: nodejs18.x
++   runtime: nodejs20.x
++   stage: dev
++   region: ap-northeast-1
++   profile: <認証用プロファイル名>
functions:
  api:
    handler: index.handler
    events:
      - httpApi:
          path: /
          method: get

sls deploy

curl https://<id>.execute-api.ap-northeast-1.amazonaws.com/

{
  "message": "Go Serverless v3.0! Your function executed successfully!",
  "input": {
    "version": "2.0",
    "routeKey": "GET /",
    "rawPath": "/",
    "rawQueryString": "",
    "headers": {
      "accept": "*/*",
      "accept-encoding": "gzip, deflate, br",
      "cache-control": "no-cache",
      〜省略〜
}

{
    "statusCode": 200,
    "body": "{\n  \"message\": \"Go Serverless v3.0! Your function executed successfully!\",\n  \"input\": {}\n}"
}

sls remove

service: serverless-starter-api
frameworkVersion: '3'

provider:
  name: aws
  runtime: nodejs20.x
++  iam:
++    role: arn:aws:iam::xxxxxxxxxxxx:role/xxxxx-role/xxxxxxxxxx　＜＝IAMロールのARNを設定

functions:
  hello:
    handler: index.handler

# 書式： npm install @aws-sdk/client-SERVICE

npm install @aws-sdk/client-s3

// The following code example shows how to use ListBuckets.
const { ListBucketsCommand, S3Client } = require('@aws-sdk/client-s3');

const client = new S3Client({});

module.exports.handler = async (event) => {
  const command = new ListBucketsCommand({});

  try {
    const { Owner, Buckets } = await client.send(command);
    console.log(
      `${Owner.DisplayName} owns ${Buckets.length} bucket${
        Buckets.length === 1 ? "" : "s"
      }:`,
    );
    console.log(`${Buckets.map((b) => ` • ${b.Name}`).join("\n")}`);
  } catch (err) {
    console.error(err);
  }
};

# 書式： sls invoke local -f <ファンクション名>

sls invoke local -f api

@aws-sdk/credential-provider-node - defaultProvider::fromEnv WARNING:
    Multiple credential sources detected: 
    Both AWS_PROFILE and the pair AWS_ACCESS_KEY_ID/AWS_SECRET_ACCESS_KEY static credentials are set.
    This SDK will proceed with the AWS_PROFILE value.
    
    However, a future version may change this behavior to prefer the ENV static credentials.
    Please ensure that your environment only sets either the AWS_PROFILE or the
    AWS_ACCESS_KEY_ID/AWS_SECRET_ACCESS_KEY pair.

<AWSアカウント名> owns 7 buckets:
 • <バケット名1>
 • <バケット名2>
 • <バケット名3>
 • <バケット名4>
 • <バケット名5>
 • <バケット名6>
 • <バケット名7>