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JAWS: Project Structure

All JAWS apps use the directory structure described in the diagram below. This scaffolding can be generated by running the jaws project create command.

jaws framework structural diagram

jaws.json

See project jaws.json example here

The jaws.json file contains project configuration and authorship details.

Common jaws.json attributes

The following attributes should exist in either a project or lambda jaws.json at the top level

  • name: project/module or lambda action name
  • version: project/module or lambda Semantic Versioning number.
  • location: project/module or lambda scm url (if exists)
  • author: John Serverless <[email protected]> http://www.john.com
  • description: project/module or lambda desc.
  • stages: map of all your stages, and regions those stages are in as well as IAM roles

admin.env

This file tells the JAWS tooling what profile from the shared credentials file (~/.aws/credentials) is loaded when doing administrative tasks that interact with AWS.

Here is an example

ADMIN_AWS_PROFILE=default

lambdas-cf.json

This is the JAWS lambda CloudFormation file.

It contains your lambda function topology and facilitates the deployent and mangement of your lambda functions for a given stage and region.

You can see a lambdas-cf.json example here

resources-cf.json

This is the JAWS CloudFormation resources file. It contains things like the IAM roles for JAWS lambda functions and API Gateway endpoints.

AWSM: Amazon Web Services Modules can merge data into this file by implementing the resources,LambdaIamPolicyDocumentStatements,and ApiGatewayIamPolicyDocumentStatements attribute in the awsm.json.

The following CloudFormation Parameters are standardized JAWS project variables that all aws-module CloudFormation templates should utilize via Ref. Note: aa is used so they show up at top of CloudFormation web UI:

  • aaHostedZone
  • aaStage
  • aaProjectName
  • aaDataModelStage what's this?
  • aaNotficationEmail
  • aaDefaultDynamoRWThroughput

The following are CloudFormation Resource names that aws-module creators can Ref in their CF Templates:

  • IamRoleLambda
  • IamRoleApiGateway