Lists are static collections of Marketing Campaigns contacts. This API allows you to interact with the list objects themselves. To add contacts to a list, you must use the Contacts API.
You can also manage your lists using the Contacts menu in the Marketing Campaigns UI. For more information about lists and best practices for building them, see "Building your Contact List".
This endpoint returns the number of contacts on a specific list.
Bearer <<YOUR_API_KEY_HERE>>1const client = require('@sendgrid/client');2client.setApiKey(process.env.SENDGRID_API_KEY);34const id = "ZGkrHSypTsudrGkmdpJJ";56const request = {7url: `/v3/marketing/lists/${id}/contacts/count`,8method: 'GET',910}1112client.request(request)13.then(([response, body]) => {14console.log(response.statusCode);15console.log(response.body);16})17.catch(error => {18console.error(error);19});