JSON-RPC method not found. code:-32601

Question

env：parity/polkadot:v0.9.22

network: polkadot
  p2pPort: 30333
  validator: false
  syncMode: fast
  pruning: true
  retainedBlocks: 1024
  logging: info
  telemetry: false
  telemetryURL: wss://telemetry.polkadot.io/submit/0
  prometheus: true
  prometheusPort: 9615
  rpc: true
  rpcPort: 9933
  rpcMethods: unsafe
  ws: true
  wsPort: 9944
  corsDomains:
    - '*'
  resources:
    cpu: "4"
    cpuLimit: "8"
    memory: 4Gi
    memoryLimit: 8Gi
    storage: 80Gi
    storageClass: gp2

execute code:

curl -H "Content-Type: application/json" -d '{"id":1, "jsonrpc":"2.0", "method": "net_peerCount", "params":[]}' http://localhost:9933

error:

{"code":-32601,"message":"Method not found"}

Answer 1

This rpc is in frontier, not substrate. If you want this rpc, plz add frontier to your node, follow this guide to integrate frontier.