Interface reflection causes crash about govector HOT 5 CLOSED

Can you show me what your RPC call looks like?

I am interested to see what the API is. Because when I put the interface inside another struct it works completely fine for me.

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Sure,

This is the send call

		err = connection.Call("MinerApi.FloodOperation", operation, &reply)

And this is the API signature

type MinerApi int

func (m* MinerApi) FloodOperation(args Operation, reply *bool) error {
...
}

If replace Operation with the scruct that implements the interface itself, such as AppendOperation it works.

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You are running into the issue where gob can not encode/decode the interface.

A simple fix for this is to embed the operation inside an Args struct

type Args struct {
op Operation
}

and modify your RPC call to have the argument be args *Args instead of op Operation.

That is the best short term fix I can suggest.
I will look into a more permanent solution in the meanwhile. Although I first one to ensure that this is different than normal RPC behaviour.

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I just tested it out. Even with Go's RPC package you can not use an interface as your type for Args in your RPC API. You would get the following error :

gob: local interface type *main.Operation can only be decoded from remote interface type; received concrete type AppendOperation

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@vaastav can you add information about this to the README (under best practices or common problems)? I'm closing this issue since this is not a GoVector issue.

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