Customizing JSON RPC requests

[daoleno]

I would like to customize a JSON RPC request, for example, using

publicClient.request({method: 'debug_traceTransaction', params: ['0x...', {tracer: 'callTracer'}]})

I hope that viem can extend the request interface to a generic JSON RPC client.

[jxom]

Can do this already! You can use the RpcSchemaOverride generic to fully type the request:

type TraceTransactionSchema = {
  Parameters: [
    hash: Hash,
    options:
      | {
          disableStorage?: boolean
          disableStack?: boolean
          enableMemory?: boolean
          enableReturnData?: boolean
          tracer?: string
        }
      | {
          timeout?: string
          tracerConfig?: {
            onlyTopCall?: boolean
            withLog?: boolean
          }
        }
      | undefined,
  ]
  ReturnType: {
    ...
  }
}

await publicClient.request<TraceTransactionSchema>({
  method: 'debug_traceTransaction',
  params: ['0x...', { tracer: 'callTracer' }],
})

If you

[daoleno]

Thanks!