Find the Size of Expo React Native OTA Update

Question

在发布新的托管Expo应用程序（例如：v2）之后，以及在现有已部署的应用程序（例如：v1）下载新的OTA更新之前，是否有办法知道此OTA更新所需的下载大小？

Answer 1

I wish they added support for this in the Expo SDK but here is what I recommend.

Send a HEAD web request to the Bundle URL (Retrieved from the Manifest object from Updates.checkForUpdateAsync() function) and get the header " Content-Length " value. This will be the size of the OTA update.

Detailed documentation of the Manifest object can be found here . URL you want to send the head request is the value of " bundleUrl " key.