Subgraph Composition: Option to force rpc to fetch block ptrs #5876
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incrypto32
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…ize when using firehose with composable subgraphs
This adds GRAPH_ETHEREUM_FORCE_RPC_FOR_BLOCK_PTRS env var which when enabled forces the use of RPC instead of Firehose for loading block pointers by numbers, with Firehose fallback. Useful for composable subgraphs.
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Composable subgraphs need to fetch block ptrs to handle reorgs, when its not in the cache graph-node uses firehose endpoint to fetch the block using a
SingleBlockRequestbut this is currently slower than RPC.This PR
FirehoseEndpointscode