AWS SAM CLIを利用してLambdaのローカル開発環境を構築

PS C:\Users\user> aws configure
AWS Access Key ID []: xxxxxxxxxx
AWS Secret Access Key []: xxxxxxxxx
Default region name []: ap-northeast-1
Default output format []: json

PS C:\Users\user> sam --version
SAM CLI, version 1.15.0

PS C:\Project> cd C:\Project
PS C:\Project> sam init
・
(略)
￥・
Which template source would you like to use?
        1 - AWS Quick Start Templates
        2 - Custom Template Location
Choice: 1
What package type would you like to use?
        1 - Zip (artifact is a zip uploaded to S3)
        2 - Image (artifact is an image uploaded to an ECR image repository)
Package type: 1

Which runtime would you like to use?
        1 - nodejs12.x
        2 - python3.8
        3 - ruby2.7
        4 - go1.x
        5 - java11
        6 - dotnetcore3.1
        7 - nodejs10.x
        8 - python3.7
        9 - python3.6
        10 - python2.7
        11 - ruby2.5
        12 - java8.al2
        13 - java8
        14 - dotnetcore2.1
Runtime: 8

Project name [sam-app]:

Cloning app templates from https://github.com/aws/aws-sam-cli-app-templates

AWS quick start application templates:
        1 - Hello World Example
        2 - EventBridge Hello World
        3 - EventBridge App from scratch (100+ Event Schemas)
        4 - Step Functions Sample App (Stock Trader)
Template selection: 1

    -----------------------
    Generating application:
    -----------------------
    Name: sam-app
    Runtime: python3.7
    Dependency Manager: pip
    Application Template: hello-world
    Output Directory: .

    Next steps can be found in the README file at ./sam-app/README.md

PS C:\Project\> cd C:\Project\sam-app
PS C:\Project\sam-app> sam build
Building codeuri: hello_world/ runtime: python3.7 metadata: {} functions: ['HelloWorldFunction']
Running PythonPipBuilder:ResolveDependencies
Running PythonPipBuilder:CopySource

Build Succeeded

Built Artifacts  : .aws-sam\build
Built Template   : .aws-sam\build\template.yaml

Commands you can use next
=========================
[*] Invoke Function: sam local invoke
[*] Deploy: sam deploy --guided

PS C:\Project\sam-app> sam deploy --guided

Configuring SAM deploy
======================

        Looking for config file [samconfig.toml] :  Not found

        Setting default arguments for 'sam deploy'
        =========================================
        Stack Name [sam-app]:
        AWS Region [us-east-1]:
        #Shows you resources changes to be deployed and require a 'Y' to initiate deploy
        Confirm changes before deploy [y/N]: N
        #SAM needs permission to be able to create roles to connect to the resources in your template
        Allow SAM CLI IAM role creation [Y/n]: Y
        HelloWorldFunction may not have authorization defined, Is this okay? [y/N]: y
        Save arguments to configuration file [Y/n]: Y
        SAM configuration file [samconfig.toml]:
        SAM configuration environment [default]:

        Looking for resources needed for deployment: Not found.
        Creating the required resources...
        Successfully created!


---------------------------------------------------------------------------------------------------------------------
Outputs
---------------------------------------------------------------------------------------------------------------------
Key                 HelloWorldFunctionIamRole
Description         Implicit IAM Role created for Hello World function
Value               arn:aws:iam::864637024666:role/sam-app-HelloWorldFunctionRole-KHP5YDD6RHPK

Key                 HelloWorldApi
Description         API Gateway endpoint URL for Prod stage for Hello World function
Value               https://k1f592d9e8.execute-api.us-east-1.amazonaws.com/Prod/hello/

Key                 HelloWorldFunction
Description         Hello World Lambda Function ARN
Value               arn:aws:lambda:us-east-1:864637024666:function:sam-app-HelloWorldFunction-KNW6ZAEC2UL4
---------------------------------------------------------------------------------------------------------------------

Successfully created/updated stack - sam-app in us-east-1

PS C:\Project\sam-app> curl https://k1f592d9e8.execute-api.us-east-1.amazonaws.com/Prod/hello/


StatusCode        : 200
StatusDescription : OK
Content           : {"message": "hello world"}
RawContent        : HTTP/1.1 200 OK
                    Connection: keep-alive
                    x-amzn-RequestId: 972c5698-d5c0-407b-9d0e-2fee0d888c76
                    x-amz-apigw-id: YMtTaHBVIAMF_GQ=
                    X-Amzn-Trace-Id: Root=1-5fe828e2-78a6fabe5d2ecfb00d66793e;Sampled=0
                    ...
Forms             : {}
Headers           : {[Connection, keep-alive], [x-amzn-RequestId, 972c5698-d5c0-407b-9d0e-2fee0d888c76], [x-amz-apigw-i
                    d, YMtTaHBVIAMF_GQ=], [X-Amzn-Trace-Id, Root=1-5fe828e2-78a6fabe5d2ecfb00d66793e;Sampled=0]...}
Images            : {}
InputFields       : {}
Links             : {}
ParsedHtml        : mshtml.HTMLDocumentClass
RawContentLength  : 26

PS C:\Project\sam-app> sam local start-api
Mounting HelloWorldFunction at http://127.0.0.1:3000/hello [GET]
You can now browse to the above endpoints to invoke your functions. You do not need to restart/reload SAM CLI while working on your functions, changes will be reflected instantly/automatically. You only need to restart SAM CLI if you update your AWS SAM template

PS C:\Users\user> curl http://127.0.0.1:3000/hello


StatusCode        : 200
StatusDescription : OK
Content           : {"message": "hello world"}
RawContent        : HTTP/1.0 200 OK
                    Content-Length: 26
                    Content-Type: application/json
                    Date: Sun, 27 Dec 2020 07:15:28 GMT
                    Server: Werkzeug/1.0.1 Python/3.8.6

                    {"message": "hello world"}
Forms             : {}
Headers           : {[Content-Length, 26], [Content-Type, application/json], [Date, Sun, 27 Dec 2020 07:15:28 GMT], [Se
                    rver, Werkzeug/1.0.1 Python/3.8.6]}
Images            : {}
InputFields       : {}
Links             : {}
ParsedHtml        : mshtml.HTMLDocumentClass
RawContentLength  : 26

PS C:\Project\sam-app> aws cloudformation delete-stack --stack-name sam-app --region us-east-1
PS C:\Project\sam-app> aws cloudformation delete-stack --stack-name aws-sam-cli-managed-default --region us-east-1