Messages

MsgRelayBandRates

Authorized Band relayers can relay price feed data for multiple symbols with the MsgRelayBandRates message. The registered handler iterates over all the symbols present in the MsgRelayBandRates and creates/updates the BandPriceState for each symbol.

message MsgRelayBandRates {
  string relayer = 1;
  repeated string symbols = 2;
  repeated uint64 rates = 3;
  repeated uint64 resolve_times = 4;
  repeated uint64 requestIDs = 5;
}

This message is expected to fail if the Relayer is not an authorized Band relayer.

MsgRelayCoinbaseMessages

Relayers of Coinbase provider can send price data using MsgRelayCoinbaseMessages message.

Each Coinbase Messages is authenticated by the Signatures provided by the Coinbase oracle address 0xfCEAdAFab14d46e20144F48824d0C09B1a03F2BC, thus allowing anyone to submit the MsgRelayCoinbaseMessages.

message MsgRelayCoinbaseMessages {
  option (gogoproto.equal) = false;
  option (gogoproto.goproto_getters) = false;
  string sender = 1;

  repeated bytes messages = 2;
  repeated bytes signatures = 3;
}

This message is expected to fail if signature verification fails or if the Timestamp submitted is not more recent than the last previously submitted Coinbase price.

MsgRelayPriceFeedPrice

Relayers of PriceFeed provider can send the price feed using MsgRelayPriceFeedPrice message.

// MsgRelayPriceFeedPrice defines a SDK message for setting a price through the pricefeed oracle.
message MsgRelayPriceFeedPrice {
  option (gogoproto.equal) = false;
  option (gogoproto.goproto_getters) = false;
  string sender = 1;

  repeated string base = 2;
  repeated string quote = 3;

  // price defines the price of the oracle base and quote
  repeated string price = 4 [
    (gogoproto.customtype) = "github.com/cosmos/cosmos-sdk/types.Dec",
    (gogoproto.nullable) = false
  ];
}

This message is expected to fail if the Relayer (Sender) is not an authorized pricefeed relayer for the given Base Quote pair or if the price is greater than 10000000.

MsgRequestBandIBCRates

MsgRequestBandIBCRates is a message to instantly broadcast a request to bandchain.

// MsgRequestBandIBCRates defines a SDK message for requesting data from BandChain using IBC.
message MsgRequestBandIBCRates {
  option (gogoproto.equal) = false;
  option (gogoproto.goproto_getters) = false;

  string sender = 1;
  uint64 request_id = 2;

}

Anyone can broadcast this message and no specific authorization is needed. The handler checks if BandIbcEnabled flag is true and go ahead sending a request.

MsgRelayPythPrices

MsgRelayPythPrices is a message for the Pyth contract relay prices to the oracle module.

// MsgRelayPythPrices defines a SDK message for updating Pyth prices
message MsgRelayPythPrices {
  option (gogoproto.equal) = false;
  option (gogoproto.goproto_getters) = false;

  string sender = 1;
  repeated PriceAttestation price_attestations = 2;
}

message PriceAttestation {
  string product_id = 1;
  bytes price_id = 2;
  int64 price = 3;
  uint64 conf = 4;
  int32 expo = 5;
  int64 ema_price = 6;
  uint64 ema_conf = 7;
  PythStatus status = 8;
  uint32 num_publishers = 9;
  uint32 max_num_publishers = 10;
  int64 attestation_time = 11;
  int64 publish_time = 12;
}

enum PythStatus {
  // The price feed is not currently updating for an unknown reason.
  Unknown = 0;
  // The price feed is updating as expected.
  Trading = 1;
  // The price feed is not currently updating because trading in the product has been halted.
  Halted = 2;
  // The price feed is not currently updating because an auction is setting the price.
  Auction = 3;
}

This message is expected to fail if the Relayer (sender) does not equal the Pyth contract address as defined in the oracle module Params.