Build Your Own Product Description Generator API with Cohere

Journey's End: Mastering Cohere for Product Descriptions

Congratulations on reaching this point! You've successfully built a product description generator API using Cohere. This API serves as a powerful tool for generating engaging and informative descriptions for your products. This tutorial is tailored for those with a basic understanding of JavaScript and NodeJS. If you're new to JavaScript, we encourage you to explore some resources to get comfortable with the language before diving in.

The journey doesn't stop here; keep following us for more tutorials on Cohere and its capabilities!

Getting Your Cohere API Key

To get started, you will need an API key from Cohere. Simply sign up at Cohere Dashboard. If you haven’t connected a session before, your API key should be visible on the main screen. Otherwise, you can locate it on the settings page.

Clone the Express Boilerplate from GitHub

This tutorial utilizes an Express boilerplate which significantly eases the development process.

• Copy the Express Boilerplate repository onto your computer.
• Add it to your own repositories.

Running the Project Locally

1. Install the dependencies using yarn or npm.
2. Run the server with yarn dev or npm dev.
3. Create a .env file in the root of your project to add your API key.

Ensure your .env file contains:
COHERE_API_KEY={YOUR_API_KEY}

Create Routing for the API

1. Create a routes folder in the root of your project.
2. Create a description.js file inside the routes folder.
3. Add the following code to description.js to set up a working router:

const express = require('express');
const router = express.Router();
// Add your route handlers here...
module.exports = router;

Next, add the route to index.js in the root of the project:

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

Create a Generator Function

1. Create a folder in the root of the project named lib.
2. Create a file called description-generator.js in the lib folder.
3. Add the following code to the description-generator.js for a working generator function:

function generateDescription(product, keywords) {
    // Logic to generate description using Cohere API
}
module.exports = generateDescription;

Using the Generator Function in the POST Route

1. Update the description.js file with the following code to utilize the generator function in the POST route:

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

Testing the API

Run the project locally and test it using Postman, Insomnia, or any preferred API testing tool. Send a POST request to:

localhost:3000/description with the following keys:

• product
• keywords

Parting Thoughts: Changing the World with AI

We trust you found value in this straightforward tutorial. Now is the perfect time for you to experiment; feel free to tweak the prompts and have some fun with it! Don’t miss our upcoming AI Hackathons and seize the chance to supercharge your application through our AI Slingshot Program.

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