HttpQueries

The query models the public routes serve, by aggregate type: the snapshots of each aggregate a snapshot query backend serves, and the events of each aggregate an events backend serves, every one a QueryGateway on the one engine. A model of the Manifest without one here has no route: a request for it is the context's 404.

The datasets are served under /wow/dataset/{context}/{dataset}/query, each by its gateway as it is when the request comes: a dataset that joins or leaves while the node runs is served or not from then on. datasetVisibility decides which of them a caller sees, in GET /wow/dataset and on its routes.

defaultListSize is the limit a list query that names none runs with over HTTP (a limit below 1 is refused as the body is read), at most the HTTP budget's maxListSize; 0 gives no default, so such a query reads every match where the budget allows it.

snapshotStatus tells whether an aggregate type's snapshots are being rebuilt or backfilled: its snapshot query and descriptor then answer with Wow-Rebuilding: true.

policies are the gateways that admit the states of each aggregate type whose snapshots are not queried while query policies may hide one (me.ahoo.wow.query.state.SnapshotPolicyGateway); no route serves them, and a state read sees a state as visibility says. reads is the read path of the state reads (ReadFacade), the QueryEngine's when it comes from one (of). streams is how a list streams as server-sent events.

access are the access policies of the aggregates that have one, whose state reads check no owner or space of their own: the policy decides them (AccessPolicies.governs).

crossTenant is whether a caller that may act across scopes may query across tenants (wow.query.allow-cross-tenant, off by default): Wow-Scope: tenant=* or tenant=("t1" "t2") on a query route, answered 403 wow.auth.forbidden while it is off.