When integrating SPA into an existing backend there are a number of tools that can be used to reduce the pain of performing the work.

• Chrome "Copy as cUrl" https://developers.google.com/web/updates/2015/05/replay-a-network-request-in-curl?hl=en

1. Provide explicit notes on the exact HTTP expectations
2. Provide notes on the routing expected from the application server
3. Provide a single case of the request without and existing state
4. Whitelist the route mapping through the proxy server
5. Disable any mock front-end API
6. Establish monitoring to go with #1

We'll focus initally on a scenario where we're able to have an explicit build step and that we want to have the developer experience be as seemless as possible when in either Rails or during the application development.

• Rails provides some core functionality
• Rails also provides api
• Node provides a place for live loading files
• Node provides a build infrastructure for creating a single main.js