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Version: testnet (v0.73)


Market Depth Update is a delta to the current market depth which can be used to update the market depth structure to keep it correct

type ObservableMarketDepthUpdate {
marketId: ID!
buy: [PriceLevel!]
sell: [PriceLevel!]
sequenceNumber: String!
previousSequenceNumber: String!


ObservableMarketDepthUpdate.marketId ● ID! non-null scalar

Market ID ● [PriceLevel!] list object

Buy side price levels (if available)

ObservableMarketDepthUpdate.sell ● [PriceLevel!] list object

Sell side price levels (if available)

ObservableMarketDepthUpdate.sequenceNumber ● String! non-null scalar

Sequence number for the current snapshot of the market depth. It is always increasing but not monotonic.

ObservableMarketDepthUpdate.previousSequenceNumber ● String! non-null scalar

Sequence number of the last update sent; useful for checking that no updates were missed.

Returned by

marketsDepthUpdate subscription