Support context.Context

[benny-conn]

I wish I could use this library but because it does not support go's context.Context, I can't reliably use it. This library performs operations over a network and it is common practice to use a context so that network operations can be cancelled by the context, either by manual cancellation or deadline. The go http package supports contexts with functions like http.NewRequestWithContext.

Even if I use contexts and goroutines to disregard the response of a shell request when a context times out for example, there is no way to stop the execution of a function. If I were to be downloading content from ipfs, it would continue downloading despite the context cancelling, and the program continuing running.

The only workaround I can see is manually setting a timeout on the http client, but this is bad practice and not predictable.

[lidel]

@benny-conn we are in the process of unifying our RPC client story (ipfs/kubo#9124), so it is unlikely we will break/change API here until that issue is resolved (closing this, let's continue there).

For now, maybe you could see if https://github.com/ipfs/go-ipfs-http-client is enough for your use case?