Stream body with environmentment access or scope

[guersam]

Currently Body.fromStream* and Response.fromServerSentEvents fix the R type of the output stream to be Any. It blocks or makes difficult to implement some use cases such as:

• A Server Sent Event response stream might want access internal modules via environment.
• Use a resourceful ZIO effect with a stream body, i.e. A temporary file RIO[Scope, File] that should be deleted after the stream terminates.

There are some workarounds like ZIO.environmentWith(stream.provideEnvironment), but it does not go well with Scope because the stream outlives the handler in the current design.

[jdegoes]

/bounty $150

[algora-pbc]

💎 $150 bounty • ZIO

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