Echo

Calls

ping

Ping extrinsic sends an event to the bridge containing a message

Namespace

api.tx.echo.ping

Type

function ping(
  destination: H160
)

Storage

nextSessionId

The next available offer_id

Namespace

api.query.echo.nextSessionId

Type

function nextSessionId(

): u64

Events

PingReceived

A ping was received from Ethereum

Namespace

api.events.echo.PingReceived

Type

type PingReceived = {
  session_id: u64,
  source: H160,
  data: Bytes
}

PingSent

A ping message was sent to Ethereum

Namespace

api.events.echo.PingSent

Type

type PingSent = {
  session_id: u64,
  source: H160,
  destination: H160,
  event_proof_id: u64
}

PongReceived

A pong response was received from Ethereum

Namespace

api.events.echo.PongReceived

Type

type PongReceived = {
  session_id: u64,
  source: H160,
  data: Bytes
}

PongSent

A pong message was sent to Ethereum

Namespace

api.events.echo.PongSent

Type

type PongSent = {
  session_id: u64,
  source: H160,
  destination: H160,
  event_proof_id: u64
}

Errors

InvalidAbiEncoding

The abi received does not match the encoding scheme

Namespace

api.errors.echo.InvalidAbiEncoding

InvalidParameter

Invalid ping_or_pong parameter, must be 0 or 1

Namespace

api.errors.echo.InvalidParameter

NoAvailableIds

There are no remaining session ids

Namespace

api.errors.echo.NoAvailableIds

Constants

palletId

This pallet's Id, used for deriving a sovereign account ID

Namespace

api.consts.echo.palletId

Type

type palletId = FrameSupportPalletId

Source: https://docs.therootnetwork.com/build/substrate/api-reference/runtime-pallets/echo · captured 2026-05-02 · part of TRN Docs source map