How can I fetch and display all layers from a Figma file using the REST API

1. Fetch the file's metadata to get the file's ID:

javascript
const axios = require('axios');

const config = {
  headers: {
    'X-FIGMA-TOKEN': 'YOUR_ACCESS_TOKEN'
  }
};

axios.get('https://api.figma.com/v1/files/FILE_KEY', config)
  .then(response => {
    const fileId = response.data.file.id;
    fetchLayers(fileId, config);
  })
  .catch(error => {
    console.error(error);
  });

2. Fetch the file's layers using the `GET /v1/files/{file_id}/nodes` endpoint:

javascript
function fetchLayers(fileId, config) {
  axios.get(`https://api.figma.com/v1/files/${fileId}/nodes?depth=999`, config)
    .then(response => {
      const layers = response.data.nodes;
      displayLayers(layers);
    })
    .catch(error => {
      console.error(error);
    });
}

3. Display the layers in your application:

javascript
function displayLayers(layers) {
  for (const nodeId in layers) {
    const layer = layers[nodeId];
    console.log(`Layer name: ${layer.name}`);
    console.log(`Layer type: ${layer.type}`);
    console.log(`Layer ID: ${nodeId}`);
    console.log('---');
  }
}

Here's how the code works:

1. The first part fetches the metadata of the Figma file using the `GET /v1/files/{file_id}` endpoint. This gives us the file's ID, which we'll need to fetch the layers.
2. The `fetchLayers` function then uses the `GET /v1/files/{file_id}/nodes` endpoint to retrieve all the layers in the file. The `depth=999` parameter ensures that we fetch all nested layers.
3. The `displayLayers` function then logs the name, type, and ID of each layer to the console.

Note that you'll need to replace `'YOUR_ACCESS_TOKEN'` with your actual Figma API access token, and `'FILE_KEY'` with the ID of the Figma file you want to fetch layers from.

This example demonstrates how to fetch and display all layers from a Figma file using the Figma REST API. You can further extend this code to display the layers in your application or perform other operations on them.