Evolutility-Server-Node is a powerful tool for building model-driven REST APIs using Node.js, Express, and PostgreSQL. Whether you’re aiming for basic CRUD operations or more complex charting functions, this guide will walk you through installing and setting up Evolutility-Server-Node.

Table of Contents

• Installation
• Setup
• Configuration
• Models
• REST API
• License

Installation

To get started with Evolutility-Server-Node, you need to install it. You can either download it directly or clone it from GitHub:

git clone https://github.com/evoluteur/evolutility-server-node

Or, you can install it via npm:

npm install evolutility-server-node

Make sure you have the following dependencies: Node.js, Express, PostgreSQL, and PG-Promise.

Setup

Once installed, follow these steps to set up the server:

1. Create a PostgreSQL database.
2. Edit the config.js file to set your PostgreSQL connection string and schema name.
3. Optionally, adjust other configuration options such as apiPath, apiPort, and others.
4. Run the following commands

npm install
npm run makedb
npm start

Configuration

Configuration options are contained within config.js. You can modify settings such as:

• apiPath: Path for the REST API.
• apiPort: Port for the REST API (e.g., 2000).
• connectionString: Database connection string.
• schema: Database schema name.
• logToConsole: Enable or disable logging to the console.

Models

In order to be accessible via the REST API, each database table needs a corresponding model. Models are like blueprints, defining properties such as:

• id: Unique identifier.
• table: The driving table in the database.
• fields: An array containing field definitions.

Analogy: Models as Building Plans

Think of models as the architectural plans for a house. Each room (or field) in the house has specific dimensions and purposes (data types), and the entire structure must comply with certain regulations (database rules). Without precise blueprints, you might end up with a house that doesn’t meet your needs or government standards, just like improper models can lead to inefficient data handling in your API.

REST API

The Evolutility-Server-Node provides a set of RESTful APIs that allows you to interact with your database easily. This includes functionalities for:

• Create: Use POST to create new records.
• Read: Utilize GET to retrieve data.
• Update: Implement PATCH or PUT to update existing records.
• Delete: Use DELETE to remove records.

Troubleshooting

If you encounter issues while setting up or using Evolutility-Server-Node, consider the following troubleshooting tips:

• Ensure PostgreSQL is running and that your connection string is correct.
• Check if the required versions of Node.js and other packages are installed.
• Review the console logs for error messages; they can provide hints on what’s wrong.

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At fxis.ai, we believe that such advancements are crucial for the future of AI, as they enable more comprehensive and effective solutions. Our team is continually exploring new methodologies to push the envelope in artificial intelligence, ensuring that our clients benefit from the latest technological innovations.

License

Evolutility-Server-Node is released under the AGPLv3 license.

By following these steps, you’ll be well on your way to utilizing Evolutility-Server-Node to build effective REST APIs tailored to your application’s needs. Happy coding!