Nexmo Verify API Implementation Guide

This guide instructs developers to set up a Node.js server as a proxy to interact with the Nexmo Verify API, rather than integrating directly with the API in their mobile app. The server uses Express and body-parser to parse JSON responses, and interacts with the Nexmo REST API client for Node.js. To complete this tutorial, developers need a Vonage API account, which provides an API Key and API Secret that are used to authenticate requests to the Verify API. The server implements three endpoints: /request to initiate verification, /check to verify a code, and /cancel to cancel a verification request. After setting up the server, developers can build Android or iOS apps to network with this server using the Nexmo Verify API. The guide also includes information on how to protect against rate limiting requests to the server.