Stack

Node.js - Apis

Mocha and chai - Tests

Wso2 - Api Gateway

Install

1 - Install Docker Engine on your machine.

2 - Install Docker-Compose on your machine.

3 - Clone the project: git clone https://github.com/charlanalves/origin.git

4 - cd origin

5 - docker-compose up -d

6 - To Import Postman Collection (file present at the root of this project) Risk Calculation.postman_collection.json and on raw tab change the body type from Text to JSON

OR try with CURL: curl -X POST http://localhost:8084/api/risk -H 'cache-control: no-cache' -H 'content-type: application/json' -H 'postman-token: 1a7d7cce-d8d9-827b-dc88-21f13c5f0fe0' -d '{ "age": 35, "dependents": 2, "house": {"ownership_status": "owned"}, "income": 0, "marital_status": "married", "risk_questions": [0, 1, 0], "vehicle": {"year": 2018} }'

Runing tests

for running tests: docker exec -it origin_api /TDD/node_modules/.bin/mocha

Reasons why to choose Module pattern and config file app/rules.js

1 - Modular code.

2 - Reusability of the code.

3 - Clean and scalable code with design prepared for growth and maintenance

Bonus $$ :)

I also have created another optional docker service for API Gateway with OAUTH/JWt autentication etc.

Using an API gateway has the following benefits:

Insulates the clients from how the application is partitioned into microservices
Insulates the clients from the problem of determining the locations of service instances
Provides the optimal API for each client
Reduces the number of requests/roundtrips. For example, the API gateway enables clients to retrieve data from multiple services with a single round-trip. Fewer requests also means less overhead and improves the user experience. An API gateway is essential for mobile applications. -Simplifies the client by moving logic for calling multiple services from the client to API gateway -Translates from a “standard” public web-friendly API protocol to whatever protocols are used internally