Task 9: Add BFF service

[VarvaraZadnepriak]

Direct link to the Product Service: https://x1bqrwofsh.execute-api.eu-west-1.amazonaws.com/dev/
Direct link to the Cart Service: https://varvara-zadnepriak-cart-api-dev.eu-west-1.elasticbeanstalk.com

BFF link: http://varvara-zadnepriak-bff-service.eu-west-1.elasticbeanstalk.com
Product Service:

• Get all products: http://varvara-zadnepriak-bff-service.eu-west-1.elasticbeanstalk.com/product/dev/products
• Get product by id: http://varvara-zadnepriak-bff-service.eu-west-1.elasticbeanstalk.com/product/dev/products/420b4d50-d3e3-406a-aa70-13af9f82caeb
• Create product:
  curl --location --request POST 'http://varvara-zadnepriak-bff-service.eu-west-1.elasticbeanstalk.com/product/dev/products' \ --header 'Content-Type: application/json' \ --data-raw '{ "description": "Book by Napoleon Hill", "price": 7, "imageUrl": "https://images-na.ssl-images-amazon.com/images/I/61y04z8SKEL._SX349_BO1,204,203,200_.jpg", "count": 15, "title": "My book" }'

Cart Service:
All methods supported by cart service, f.e.

• Get Profile Cart: http://varvara-zadnepriak-bff-service.eu-west-1.elasticbeanstalk.com/cart/api/profile/cart

What was done?

• 3 - A working and correct express application should be in the bff-service folder. Reviewer can start this application locally with any valid configuration in the .env file and this application should works as described in the task 9.1.
• 5 - The bff-service should be deployed with Elastic Beanstalk. The bff-service call should be redirected to the appropriate service : product-service or CART. The response from the bff-service should be the same as if product-service or CART services were called directly.

Additional tasks:

• +1 - Add a cache at the bff-service level for a request to the getProductsList function of the product-service. The cache should expire in 2 minutes
  In memory cache was added using Nest infrastructure (just to try some Nest features or why do we use Nest in this task?)
• +1 - Use NestJS to create bff-service instead of express