Description: Creates a new wallet for a user.
Request Body:
{
"userId": userId (long)
}
Description: Retrieves all wallets belonging to a user.
Request Body: {
"userId": (long)
"userName": (String),
"userPassword": (String)
}
Description: Retrieves a wallet by its ID.
Request Body: Request Body: {
"userId": (long)
"userName": (String),
"userPassword": (String)
}
Description: Deletes a wallet.
Request Body: {
"walletId": (long)
}
Description: Creates a user.
Request Body: {
"name": (String),
"password": (String)
}
Description: Returns a user by id.
Request Body: { }
Description: Updates a user.
Request Body: {
"userId": (long),
"name": (String)
}
Description: Resets status for a blocked user.
Request Body: {
"userId": (long),
"name": (String),
"password": (String)
}
Description: Deletes a user.
Request Body: { }
Description: Deposits funds.
Request Body: {
"walletId": (long),
"userId": (long),
"userName": (String),
"userPassword": (String),
"amount": (double)
}
Description: Withdraws funds.
Request Body: {
"walletId": (long),
"userId": (long),
"userName": (String),
"userPassword": (String),
"amount": (double)
}
The application follows the Controller-Service-Repository architecture pattern. Controllers handle incoming requests, validate input, and delegate business logic to the service layer. Services contain the business logic and perform operations on the entities. The Repository layer, at the bottom of this picture, is responsible for storing and retrieving some set of data.
The application uses a relational database to store data. This choice allows for structured data storage, efficient querying, and the ability to enforce data integrity through relationships and constraints.
The application is built using the Spring Boot framework. Spring Boot provides a comprehensive set of tools and libraries for developing scalable Java applications. It simplifies the configuration and setup process, promotes convention over configuration, and offers built-in support for RESTful APIs.
Implement a secure authentication mechanism (such as JWT or OAuth2) to protect sensitive endpoints and ensure only authorized users can access them. Define roles and permissions to restrict access to certain operations based on user privileges.
Enhance input validation by implementing robust validation logic and handling edge cases. Implement consistent error handling and return meaningful error responses to the API clients.
Increase test coverage by writing more unit tests for individual components (controllers, services, and repositories) to ensure their correctness. Write integration tests to validate the interactions between different components and ensure the system functions as expected as a whole.
Generate comprehensive API documentation using tools like Swagger to provide clear documentation and examples for API consumers.
Analyze and optimize database queries to improve the application's performance. Implement caching mechanisms for frequently accessed data to reduce response times and improve scalability.
Implement a logging framework (such as Log4j or SLF4J) to capture important events and errors during runtime.