Developer api backend

API Development Scope

1. Introduction

The objective of this project is to develop an API that provides secure authentication, consumes external APIs (1-stream and binstream) for CRUD (Create, Read, Update, Delete) operations on access lines and resellers, logs all transactions in a database, and manages credit movements.

2. Functional Requirements

2.1. Secure Authentication
    •    Implement authentication using jwt (json web token) to ensure that only authorized users can access the api.
    •    Implement refresh token mechanisms to prolong authenticated user sessions.
    •    Use ssl/tls encryption to secure communication between the client and the server.
    •    Implement role-based access control (admin, reseller, end-user).

2.2. Consuming the 1-stream api
    •    crud operations for access lines:
    •    implement endpoints that allow creating, reading, updating, and deleting access lines via the 1-stream api.
    •    Map the data models from the 1-stream api to the internal models of the new api.
    •    CRUD Operations for Resellers:
    •    Create endpoints to manage resellers (create, read, update, delete).
    •    Ensure that operations are correctly reflected in the 1-stream API.

2.3. Consuming the binstream API
    •    Implement endpoints to perform crud operations according to the specifications of the binstream api.
    •    Ensure proper integration and error handling when consuming the binstream API.

2.4. Database Logging
    •    Set up a dedicated database to store logs of all operations performed by the API.
    •    Record details such as operation type, responsible user, date and time, and data involved in the transaction.

2.5. Credit Management and Movements
    •    Develop functionalities to manage credits for resellers and end-users.
    •    Allow adding, deducting, and transferring credits between accounts.
    •    Log all credit movements in the logging system.

3. Non-Functional Requirements
    •    Security: Follow best security practices in api development (prevent sql injection, xss, csrf, etc.).
    •    Performance: The API should be optimized for high performance, supporting multiple simultaneous requests.
    •    Scalability: Architecture prepared for future expansion without significant refactoring.
    •    Reliability: Ensure high availability and fault tolerance.
    •    Maintainability: Clean and well-documented code to facilitate future maintenance and extensions.
    •    Compatibility: Ensure that the API is compatible with current systems of users and resellers.

4. Technologies and Tools
    •    Programming Language: Node.js (Express) or Python (Django REST Framework)
    •    Authentication and Security: JWT, Oauth 2.0, ssl/tls
    •    database: postgresql or mongodb for log storage
    •    external api communication: axios (node.js) or Requests (Python)
    •    API Documentation: Swagger or API Blueprint
    •    Version Control: Git (GitHub or GitLab)
    •    Project Management: Jira or Trello for task tracking
    •    Development and Deployment Environment: Docker and Kubernetes for containerization and orchestration

5. Solution Architecture
    •    Presentation Layer: RESTful endpoints for client interaction.
    •    Business Logic Layer: Implementation of business rules, including credit management and access control.
    •    Integration Layer: Modules responsible for consuming the 1-stream and binstream APIs.
    •    Persistence Layer: Interaction with the database for log storage.
    •    Security Layer: Implementation of authentication, authorization, and encryption.

6. Implementation Plan

Phase 1: Planning and Design (Weeks 1-2)
    •    Define detailed requirements and use cases.
    •    Design the system architecture and data models.
    •    Set up development environments.

Phase 2: Authentication and Security (Weeks 3-4)
    •    Implement the JWT authentication system.
    •    Configure ssl/tls for secure communication.
    •    Establish role-based access control.

Phase 3: Integration with 1-stream API (Weeks 5-7)
    •    Develop endpoints for CRUD operations on access lines.
    •    Develop endpoints for CRUD operations on resellers.
    •    Ensure data synchronization and consistency.

Phase 4: Integration with binstream API (Weeks 8-9)
    •    Implement crud operations as per binstream api specifications.
    •    Test and validate integration with the external API.

Phase 5: Database and Logging (Week 10)
    •    Set up the database for log storage.
    •    Implement detailed logging of all operations.

Phase 6: Credit Management (Week 11)
    •    Develop functionalities for credit movement and management.
    •    Integrate the credit system with logs and security controls.

Phase 7: Testing and Quality Assurance (Weeks 12-13)
    •    Conduct unit, integration, and performance tests.
    •    Fix bugs and optimize performance.

Phase 8: Documentation and Deployment (Week 14)
    •    Prepare detailed API and process documentation.
    •    Set up the production environment and perform the final deployment.

7. Testing and Validation
    •    Unit Testing: For each individual component of the API.
    •    Integration Testing: Ensure that modules work correctly together.
    •    Security Testing: Assess vulnerabilities and compliance with security standards.
    •    Performance Testing: Measure response times and capacity under load.

8. Risks and Mitigations
    •    Dependency on External APIs: Implement fallback mechanisms and retries to handle unavailability.
    •    Data Security: Ensure encryption and secure storage of sensitive information.
    •    Tight Deadlines: Maintain constant communication with the team to adjust schedules if necessary.

9. Final Considerations

This project is essential to improve operational efficiency and offer better services to resellers and end-users. Focusing on security, performance, and scalability, the API will meet the current and future needs of the organization.

10. Next Steps
    •    Approval of this scope by all stakeholders.
    •    Commencement of development as per the established plan.
    •    Scheduling weekly meetings to monitor progress.