Cohere Tutorial: Build a Product Description Generator API

Journey's End: Mastering Cohere for Product Descriptions

By the time you've reached this point, you've successfully built a product description generator API using Cohere. This API is a powerful tool for generating descriptions for your own products. This tutorial is designed for those with a basic understanding of Javascript/NodeJS. If you're new to this language, consider exploring some resources before diving in. The journey doesn't end here, so stay tuned for more Cohere tutorials!

Getting Started with Cohere API

To harness the power of Cohere, start by obtaining your Cohere API Key. You can get one by signing up here. Visit the Cohere dashboard to retrieve your API key. If you haven't previously connected a session, you should see it on the main screen. Otherwise, find it in the settings page.

Cloning the Express Boilerplate from GitHub

In this tutorial, we will be using an Express boilerplate that simplifies the setup process. Copy this repository Express Boilerplate onto your computer and add it to your own repositories for easy access.

Running the Project Locally

1. Install the dependencies using yarn or npm.
2. Run the server with yarn dev or npm dev.
3. Add your Cohere API key to the .env file.

Create a .env file in the root of the project and add your API key as follows:

COHERE_API_KEY={YOUR_API_KEY}

Remember to never share your API key with anyone.

Creating Routing for the API

Create a routes folder in the root of the project and then create a description.js file inside this folder. To have a functional router, add the following code to the description.js file:

const express = require('express');
const router = express.Router();

router.post('/description', (req, res) => {
    // Implementation will go here
});

module.exports = router;

Next, include the new route in your index.js file located in the root of the project:

const description = require('./routes/description.js');
app.use('/', description);

Creating the Generator Function

To generate product descriptions, create a folder in the root of the project called lib and then create a file named description-generator.js in that folder. Add the following code to the description-generator.js file:

const cohere = require('cohere-ai');
cohere.init(process.env.COHERE_API_KEY);

async function generateDescription(product, keywords) {
    // Logic to generate product descriptions using Cohere API
}

module.exports = { generateDescription };

Update your description.js file to utilize this generator function in the POST route:

const { generateDescription } = require('./lib/description-generator');

outer.post('/description', async (req, res) => {
    const { product, keywords } = req.body;
    const description = await generateDescription(product, keywords);
    res.send({ description });
});

Testing the API

Run the project locally and use tools like Postman or Insomnia to test the functionality. Send a POST request to http://localhost:3000/description with the following keys:

• product: your product name
• keywords: relevant keywords for your product

Parting Thoughts: Changing the World with AI

We trust you found value in this straightforward tutorial. Feel free to tweak the prompt and have fun with it! Don't miss our upcoming AI Hackathons and seize the opportunity to supercharge your application through our AI slingshot program.

Let's change the world with AI, one application at a time!