payload library

Classes

Payload: Messaging — List Queues — payload
QueueDepth: The depth of one queue and its effective limit.
QueueSummary: Both queues of one account.
Response: The success response to a messaging/queue/list request. Carried in a Trust Task document whose type is https://trusttasks.org/spec/messaging/queue/list/0.1#response.

AccountType: The account's role at the mediator. standard is an ordinary served account; admin/rootAdmin may administer other accounts; mediator is the mediator's own account. Only a rootAdmin may assign or modify the rootAdmin role.
PayloadSort: Ranking key, descending. Default count.
Queue: Which of an account's two queues. receive holds messages addressed to the account awaiting its pickup. send holds messages the account sent that are still held against it until their recipient deletes them — so a stalled recipient fills its senders' send queues.

payloadSchemaJson → const String: This specification's payload schema, as JSON text.
responsePayloadSchemaJson → const String: As payloadSchemaJson, for the success-response variant.
responseSpec → const SpecPolicy: The SPEC §7.2 policy for the success-response variant.
responseTypeUri → const String: The success-response form of typeUri (SPEC §4.4.1).
spec → const SpecPolicy: The SPEC §7.2 policy for the request variant, taken from this specification's front matter.
typeUri → const String: The Trust Task type URI this library's Payload is carried under.

Ext = Map<String, dynamic>: Vendor-namespaced extension object per SPEC.md §4.5.1. Each immediate key MUST be a reverse-DNS namespace; structure under each namespace is opaque to the framework.
Vid = String: A Verifiable Identifier (SPEC §4.8). For a mediator-served account this is the account's controlling DID, carried verbatim and compared by exact string equality. For privacy — and because some mediators key accounts by a one-way hash and never hold the full DID — a stable hash of the DID (e.g. its SHA-256 digest) is an equally valid value here: producer and consumer simply agree on the same opaque identifier and compare by exact string equality. The field carries whichever form the issuing mediator uses.