Class SerializedService

constructor

• new SerializedService(
      blake2b: Blake2b,
      serviceId: number & WithBytesRepresentation<4> & WithOpaque<
          "ServiceId[u32]",
      >,
      accountInfo: ServiceAccountInfo,
      retrieveOptional: <T>(key: KeyAndCodec<T>) => T | undefined,
  ): SerializedService

  Parameters

  • blake2b: Blake2b
  • serviceId: number & WithBytesRepresentation<4> & WithOpaque<"ServiceId[u32]">

    Service id

  • accountInfo: ServiceAccountInfo
  • retrieveOptional: <T>(key: KeyAndCodec<T>) => T | undefined

  Returns SerializedService

Readonlyblake2b

ReadonlyserviceId

getInfo

• getInfo(): ServiceAccountInfo

  Service account info.

  Returns ServiceAccountInfo

getLookupHistory

• getLookupHistory(
      hash: Blake2bHash & WithOpaque<"PreimageHash">,
      len: U32,
  ):
      | readonly (
          number & WithBytesRepresentation<4> & WithOpaque<"TimeSlot[u32]">
      )[] & WithOpaque<"0-3 timeslots">
      | null

  Retrieve preimage lookup history.

  Parameters

  • hash: Blake2bHash & WithOpaque<"PreimageHash">
  • len: U32

  Returns
      | readonly (
          number & WithBytesRepresentation<4> & WithOpaque<"TimeSlot[u32]">
      )[] & WithOpaque<"0-3 timeslots">
      | null

getPreimage

• getPreimage(hash: Blake2bHash & WithOpaque<"PreimageHash">): BytesBlob | null

  Retrieve preimage from the DB.

  Parameters

  • hash: Blake2bHash & WithOpaque<"PreimageHash">

  Returns BytesBlob | null

getStorage

• getStorage(rawKey: BytesBlob & WithOpaque<"storage key">): BytesBlob | null

  Retrieve a storage item.

  Parameters

  • rawKey: BytesBlob & WithOpaque<"storage key">

  Returns BytesBlob | null

hasPreimage

• hasPreimage(hash: Blake2bHash & WithOpaque<"PreimageHash">): boolean

  Check if preimage is present in the DB.

  NOTE: it DOES NOT mean that the preimage is available.

  Parameters

  • hash: Blake2bHash & WithOpaque<"PreimageHash">

  Returns boolean