If I create a custom plugin for EOS that provides an expanded RPC/API, is it sufficient to install that plugin on my local nodeos
instance? Or does it need to be installed on the block producers as well?
The plugin will only be accessible to RPC clients which connect to nodes which run the plugin. A common case will be websites connecting to nodes running the plugins needed to support that website.
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This seems no better than hosting your own custom-built server that wraps calls to the mainnet? – Aaron Voelker May 27 '18 at 20:51