Substrate indexing examples

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Any GitHub repo can be used as a template for sqd init. Simply pass the repo URL to the --template flag.

Browse a dedicated repository with Substrate squid examples:

• A simple squid tracking Kusama transfers. Illustrates a basic usage of SubstrateBatchProcessor.
• A complex squid tracking balances across multiple parachains (*). This complex squid illustrates the usage of SubstrateBatchProcessor, storage calls and custom resolvers.
• Simple Frontier EVM squid indexing an NFT collection on Astar. Illustrates how to use SubstrateBatchProcessor to index EVM logs. See Frontier EVM tutorial for details.
• Simple ink!/WASM squid. Illustrates how to use SubstrateBatchProcessor to index WASM smart contract data. See WASM tutorial for details.
• An advanced squid tracking all the historical ERC20 and NFT transfers on Moonbeam (*). Illustrates the usage of wildcard selectors and a possible way to organize a growing squid codebase into submodules.

(*) These archive squids use the older Makefile-based interface. Look into their dedicated pages or repository README files for guidance.