PaymentSystem

This is a sample project for payment system

• I use JWTAuthentication for the authentication and to get the token.
  
• I made a UseInMemoryDatabase to store the data.
  
• I created CustomExceptionMiddleware class to perform try catch when running API so that i dont need to actually right try catch in every API.
  
• I created an Encryptor class just to encrypt the authentication password when comparing to the database.
  
• As for unit testing, I create xUnit test to test the API if its authorized\unauthorized and check the ouput of the Interface if the output is correct.
  

Tools Needed.

• Visual Studio 2019
• Postman (to test the project) if you don't have it installed you can download here : https://app.getpostman.com/app/download/win64

1. get the repository here : https://github.com/errolian22/PaymentSystem.git
2. open the repository in visual studio 2019
3. run the project.

I made a UseInMemoryDatabase to store the data.
The sample username and password is

User 1
username : usertest1
password : password1

User 2
username : usertest2
password : password2

To test the api it should be in postman, I created a basic authentication with JWTAuthentication to return a token.

• To authenticate paste the link https://localhost/api/account/authenticate (the localhost is base on your workstation)
  

• Set the HTTP verbs to POST, then add the Headers
  

  • Key : Content-Type
    
  • Value : application/json
    

• Then go to Body then input { "username": "usertest1", "password":"password1"} or { "username": "usertest2", "password":"password2" } depends on what user you wanted to use.
  

• Then click Send button, in the response there should be a Token. copy the formatted text token.
  

• Go to the https://localhost/api/payments/GetPayments set the HTTP verbs to GET then add the Headers
  Example.
  

  • Key : Authorization
    
  • Value : Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJ1bmlxdWVfbmFtZSI6InVzZXJ0ZXN0MiIsIm5iZiI6MTYxMTc1NjgxOCwiZXhwIjoxNjExNzYwNDE4LCJpYXQiOjE2MTE3NTY4MTh9.h4NVUi4LuMLRrYAm2r7i-qynd0ypa5B9J6VqPcoessk
    

• Then click Send there should be a JSON output in the body.
  

• In terms of CI/CD, I connected it to the Azure DevOps and generate a pipeline and configure the pipeline as necessary. I also include testing in the pipeline so that we can verify that the code is stable. I included the YML file in solution.
  

• check the azure pipline tag here : https://dev.azure.com/erroliantamayo/PaymentSystem/_apis/build/status/PaymentSystem-ASP.NET%20Core-CI?branchName=master