Next.js: Does getInitialProps block the event loop on the server

[Chrischuck]

Question about Next.js

Related to #1840

While React's render is synchronous, is getInitialProps part of this render?

I assume that not to be the case, but for example, if you make an api request in getInitialProps does that block other requests from getting handled?

[timneutkens]

GetInitialProps is asynchronous and won’t block the main thread. However if your code inside of getInitialProps is blocking the main thread it will actually block. Fetches are also asynchronous though!

[StarpTech]

This question is very general but if it helps IO like making an API request is offloaded to https://github.com/libuv/libuv and handled asynchronously so node.js is capable to proceed with work while the request is in flight. This does not change the fact that node.js runs all your code synchronously.

[Chrischuck]

Awesome, just what I needed! Thanks for the quick response guys.