69 lines
1.6 KiB
Markdown
69 lines
1.6 KiB
Markdown
# eth-statediff-service
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[](https://goreportcard.com/report/github.com/vulcanize/eth-statediff-service)
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>> standalone statediffing service ontop of leveldb
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Purpose:
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Stand up a statediffing service directly on top of a go-ethereum leveldb instance.
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This service can serve historical state data over the same rpc interface as
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[statediffing geth](https://github.com/vulcanize/go-ethereum/releases/tag/v1.9.11-statediff-0.0.5) without needing to run a full node
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## Usage
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### `serve`
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To serve state diffs over RPC:
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`eth-statediff-service serve --config=<config path>`
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Available RPC methods are:
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* `statediff_stateTrieAt()`
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* `statediff_streamCodeAndCodeHash()`
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* `statediff_stateDiffAt()`
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* `statediff_writeStateDiffAt()`
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### `write`
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To write state diffs directly to a database:
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`eth-statediff-service write --config=<config path>`
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This depends on the `database` settings being properly configured.
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## Configuration
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An example config file:
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```toml
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[leveldb]
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path = "/Users/user/Library/Ethereum/geth/chaindata"
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ancient = "/Users/user/Library/Ethereum/geth/chaindata/ancient"
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[server]
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ipcPath = "~/.vulcanize/vulcanize.ipc"
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httpPath = "127.0.0.1:8545"
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[write]
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ranges = [[1, 2], [3, 4]]
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[write.params]
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IntermediateStateNodes = true
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IntermediateStorageNodes = false
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IncludeBlock = true
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IncludeReceipts = true
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IncludeTD = true
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IncludeCode = false
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[statediff]
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workers = 4
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[log]
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file = "~/.vulcanize/statediff.log"
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level = "info"
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[eth]
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chainID = 1
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```
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