chore: add standard eth and geth rpc configs

[koushiro]

Changes

• add standard ethererum rpc config (it's the template)
• add geth rpc config (use it in producation env)
• add prometheus into configs/demo_config.yml

Notes

Based on the specific use case, comment the unused RPC methods, like,

• For internal use or external explorer: use eth, txpool, net, debug RPC methods
• For user: use eth, net RPC methods

You can call the rpc_methods RPC method to find out which RPC methods are currently supported by subway.

curl -X POST \
-H "Content-Type: application/json" \
--data '{"jsonrpc": "2.0", "id": 1, "method": "rpc_methods", "params": []}' \
"http://127.0.0.1:8545" | jq
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100  1901  100  1835  100    66  2608k  96069 --:--:-- --:--:-- --:--:-- 1856k
{
  "jsonrpc": "2.0",
  "result": {
    "methods": [
      "debug_accountRange",
      "debug_chaindbCompact",
      "debug_chaindbProperty",
      "debug_dbAncient",
      "debug_dbAncients",
      "debug_dbGet",
      "debug_dumpBlock",
      "debug_getAccessibleState",
      "debug_getBadBlocks",
      "debug_getModifiedAccountsByHash",
      "debug_getModifiedAccountsByNumber",
      "debug_getRawBlock",
      "debug_getRawHeader",
      "debug_getRawReceipts",
      "debug_getRawTransaction",
      "debug_getTrieFlushInterval",
      "debug_intermediateRoots",
      "debug_preimage",
      "debug_printBlock",
      "debug_setHead",
      "debug_setTrieFlushInterval",
      "debug_standardTraceBadBlockToFile",
      "debug_standardTraceBlockToFile",
      "debug_storageRangeAt",
      "debug_traceBadBlock",
      "debug_traceBlock",
      "debug_traceBlockByHash",
      "debug_traceBlockByNumber",
      "debug_traceBlockFromFile",
      "debug_traceCall",
      "debug_traceChain",
      "debug_traceTransaction",
      "eth_accounts",
      "eth_blobBaseFee",
      "eth_blockNumber",
      "eth_call",
      "eth_chainId",
      "eth_coinbase",
      "eth_createAccessList",
      "eth_estimateGas",
      "eth_feeHistory",
      "eth_gasPrice",
      "eth_getBalance",
      "eth_getBlockByHash",
      "eth_getBlockByNumber",
      "eth_getBlockReceipts",
      "eth_getBlockTransactionCountByHash",
      "eth_getBlockTransactionCountByNumber",
      "eth_getCode",
      "eth_getFilterChanges",
      "eth_getFilterLogs",
      "eth_getLogs",
      "eth_getProof",
      "eth_getStorageAt",
      "eth_getTransactionByBlockHashAndIndex",
      "eth_getTransactionByBlockNumberAndIndex",
      "eth_getTransactionByHash",
      "eth_getTransactionCount",
      "eth_getTransactionReceipt",
      "eth_getUncleCountByBlockHash",
      "eth_getUncleCountByBlockNumber",
      "eth_maxPriorityFeePerGas",
      "eth_newBlockFilter",
      "eth_newFilter",
      "eth_newPendingTransactionFilter",
      "eth_sendRawTransaction",
      "eth_sendTransaction",
      "eth_sign",
      "eth_signTransaction",
      "eth_subscribe",
      "eth_syncing",
      "eth_uninstallFilter",
      "eth_unsubscribe",
      "net_listening",
      "net_peerCount",
      "net_version",
      "txpool_content",
      "txpool_contentFrom",
      "txpool_inspect",
      "txpool_status"
    ],
    "version": 1
  },
  "id": 1
}

Example

cargo build --release
./target/release/subway -c configs/demo_config.yml

configs/demo_config.yml:

  client:
    endpoints:
      - wss://op-demo.alt.technology/ws
  eth_api:
    stale_timeout_seconds: 180 # rotate endpoint if no new blocks for 3 minutes
  telemetry:
    provider: none
  prometheus:
    port: 9616
    listen_address: "0.0.0.0"
    prefix: "subway"
  cache:
    default_ttl_seconds: 60
    default_size: 500
  server:
    port: 8545
    listen_address: '0.0.0.0'
    max_connections: 2000
    max_batch_size: 10
    cors: all
middlewares:
  methods:
    - whitelist
    - response
    - block_tag
    - cache
    - upstream
  subscriptions:
    - upstream

rpcs: rpc_configs/geth.yml