serverless-s3-local's Introduction

serverless-s3-local

serverless-s3-local is a Serverless plugin to run S3 clone in local.
This is aimed to accelerate development of AWS Lambda functions by local testing.
I think it is good to collaborate with serverless-offline.

Installation

npm install serverless-s3-local --save-dev

Example

serverless.yaml

service: serverless-s3-local-example
provider:
  name: aws
  runtime: nodejs4.3
plugins:
  - serverless-s3-local
  - serverless-offline
custom:
# Uncomment only if you want to collaborate with serverless-plugin-additional-stacks
# additionalStacks:
#    permanent:
#      Resources:
#        S3BucketData:
#            Type: AWS::S3::Bucket
#            Properties:
#                BucketName: ${self:service}-data
  s3:
    host: 0.0.0.0
    port: 8000
    directory: /tmp
    # Uncomment the first line only if you want to use cors with specified policy
    # Uncomment the second line only if you don't want to use cors
    # Not uncomment the these lines only if your wanto use cors with default policy
    # cors: relative/path/to/your/cors/policy/xml
    # cors: false
    # Uncomment only if you already have a S3 server running locally
    # noStart: true
resources:
  Resources:
    NewResource:
      Type: AWS::S3::Bucket
      Properties:
        BucketName: local-bucket
functions:
  webhook:
    handler: handler.webhook
    events:
      - http:
        method: GET

handler.js

const AWS = require('aws-sdk');

module.exports.webhook = (event, context, callback) => {
  const S3 = new AWS.S3({
    s3ForcePathStyle: true,
    endpoint: new AWS.Endpoint('http://localhost:8000'),
  });
  S3.putObject({
    Bucket: 'local-bucket',
    Key: '1234',
    Body: new Buffer('abcd')
  }, () => {} );
};