Following is the simple process i follow.
Read moreHow do I deploy flutter Web on server?
Build the app for deployment using the flutter build web command . You can also choose which renderer to use by using the –web-renderer option (See Web renderers). This generates the app, including the assets, and places the files into the /build/web directory of the project.
Read moreHow do you deploy the project flutter?
Building the app for release. Publishing to the Google Play Store. Updating the app’s version number. Android release FAQ.
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