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Is there a good indexer for substrate chains (like the graph)?
If we want to ask lots of queries about chain state (for example users activity over time etc.) is there a recommended or de-facto way of doing it? Ethereum has 'the graph' for example as a high performance way to interrogate the state.
(Bonus points awarded for services that provide predictable performance under heavy load)
Substrate-archive also seems to be a way to index:
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