Crate pallet_messages

Messages pallet

A pallet for storing messages.

• Configuration: Config
• Extrinsics: Call
• Runtime API: MessagesRuntimeApi
• Custom RPC API: MessagesApiServer
• Event Enum: Event
• Error Enum: Error

Overview

Messages allow for discovery of new content matching a given Schema. Each message MUST have either a provider or a validated source and provider. Message is the metadata of the source, order, schema for a payload or referenced payload.

The Messages Pallet provides functions for:

• Adding messages for a given schema.
• Enabling retrieving messages for a given schema.
• (FUTURE) Removing messages after expiration

Terminology

• Message: A message that matches a registered Schema (on-chain or off-chain).
• Payload: The data in a Message that matches a Schema.
• MSA Id: The 64 bit unsigned integer associated with an Message Source Account.
• MSA: Message Source Account. A registered identifier with the MSA pallet.
• Schema: A registered data structure and the settings around it. (See Schemas pallet)
• Schema Id: A U16 bit identifier for a schema stored on-chain.

Implementations

• None

Re-exports

• pub use pallet::*;
• pub use weights::*;

Modules

• migration
  migration module
• pallet
  The pallet module in each FRAME pallet hosts the most important items needed to construct this pallet.
• weights
  Autogenerated weights for pallet_messages

Structs

• Message
  A single message type definition.

Type Aliases

• MessageIndex
  Index of message in the block
• OffchainPayloadType
  Payloads stored offchain contain a tuple of (bytes(the payload reference), payload length).