This repository is a library that contains 2 main functionalities. First, a Policy Builder that get data from request and payload in order to build the policy structure, then it can check permissions mapping policy structure against resources list.

Second, a decorator. The decorator is able to use it into an api gateway as a generic check or less specific test. Also, this decorator could be used inside a microservice such as a authorizer decorator with more specificity.

##Example ####Generic by resources: @authorizer()

####Specific by tenant: @authorizer({tenantIdField: 'tenantId'})

####Specific by bidi: @authorizer({bidiIdField: 'tenantId'})

####Specific by both

@authorizer({ tenantIdField: 'tenantId', bidiIdField: 'tenantId' })