Setup server in the Rust app

[stephane-segning]

Description:

This task focuses on enhancing our Rust project by integrating a base server using the Rocket framework and adding support for serialization and deserialization with Serde, serde_json, and serde_derive. The goal is to lay a solid foundation for our application's backend, allowing for efficient data handling and a robust server setup.

Objectives:

• Add Dependencies: Include Rocket, serde, serde_json, and serde_derive in the project's Cargo.toml.
• Configure Rocket: Set up a basic Rocket server to handle incoming HTTP requests.
• Implement Serde: Utilize Serde for serializing and deserializing data structures, ensuring seamless data exchange between the server and clients.
• Basic Endpoint Creation: Create a simple API endpoint to demonstrate the use of Rocket and Serde together.
• Update Dockerfile: The port of the server should be exposed on the Dockerfile.

Acceptance Criteria:

1. The Cargo.toml file is updated with the latest versions of Rocket, serde, serde_json, and serde_derive.
2. A Rocket server is initialized and runs successfully, listening for incoming HTTP requests on a specified port.
3. At least one API endpoint is created, using Serde to serialize and deserialize request and response data.
4. The project compiles without errors, and the endpoint is accessible and correctly handles JSON data as per Serde configurations.
5. Documentation is provided on how to start the server and interact with the created endpoint.

Resources:

• Rocket Documentation
• Serde Documentation
• Example for Setting Up a Rocket Project

Steps:

1. Update Cargo.toml: Add the necessary dependencies for Rocket, serde, serde_json, and serde_derive.
2. Configure Rocket Server: Initialize a Rocket instance and configure it to listen on a default port. Ensure proper error handling and logging are in place.
3. Implement Serialization/Deserialization: Utilize Serde in conjunction with serde_json and serde_derive to serialize and deserialize data structures for API requests and responses.
4. Create a Test Endpoint: Develop a basic API endpoint (e.g., /hello) to test the integration of Rocket and Serde. This endpoint should accept a JSON payload, deserialize it, and respond with a serialized JSON.
5. Testing & Documentation: Test the server and endpoint functionality. Document the setup process, how to start the server, and how to interact with the test endpoint.

Milestones:

1. Dependency Integration and Server Setup
2. Serialization/Deserialization Implementation
3. Endpoint Development and Testing
4. Documentation

[stephane-segning]

Done in #80. Thank you @Blindspot22 @ndefokou @Calebasah @Tekum-Emmanuella for this work!