Is it possible to write-access Local Storage from the Node?

Question

My use case is this: an Offchain Worker sends Http requests to certain endpoints.

These endpoints are hardcoded on chain under current implementation.

I would like to be able to configure those endpoints and some other parameters locally once the Node is up, so the configuration is local-specific.

So I wonder if there is a way to access the Local Storage from the Outer Node ?

I can compile StorageValueRef::persistent on the Outer Node after the essential tasks are spawned, however it panics because of calling out of Externalities context.

Answer 1

Yes, there is an RPC method.

offchain_localStorageSet

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1. you need to enable --offchian-indexing for your node
2. you need to enable --rpc-methods unsafe for your node
3. you'd better don't expose your RPC endpoint, just use this in private network, because anyone can call this to set the storage