apps/Alex2Node
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

bridge: subscribe to discover and +/alexaDirective only

Browse source 
The bridge subscribed to <root>/#, so the broker sent back every discover_r, alexaResponce and changeReport
the bridge published, and the backend's <endpointId>/alexaDirective_e. It now subscribes to <root>/discover
and <root>/+/alexaDirective, both named in src/topics.ts; a directive topic is recognised by the root and the
last segment instead of by counting three segments.
The test reads the subscriptions from the broker, publishes seven other topics under the root and one
directive for each of two endpoints: the bridge receives the two directives and the discovery request,
nothing else. Tests: 148 -> 150 (the count in the body of 6789a1a, 108 -> 113, should read 143 -> 148).

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
This commit is contained in:
David 2026-09-28 19:36:09 +00:00
parent 6789a1a077
commit e0fe9d2812
11 changed files with 225 additions and 93 deletions
Download patch file Download diff file Expand all files Collapse all files

14
dist/esm/topics.js vendored
View file

@ -1,7 +1,21 @@
// The topics of the Alex2MQTT contract, named once. The backend and Alex2ESP use the same names, so none of them
// can change here alone.
/** Where the backend asks for the endpoints of the root. */
export const discover = (root) => `${root}/discover`;
/** Where the bridge answers a discovery request with its endpoints. */
export const discoverReply = (root) => `${root}/discover_r`;
/** Where the backend publishes the directives for one endpoint. */
export const directive = (root, endpointId) => `${root}/${endpointId}/alexaDirective`;
/**
* What the bridge subscribes to: the discovery requests and the directives of every endpoint. Not <root>/#, which
* also delivers what the bridge itself publishes and the backend's <endpointId>/alexaDirective_e.
*/
export const subscriptions = (root) => [discover(root), directive(root, "+")];
/** The endpointId of a directive topic, null for any other topic. */
export function directiveEndpoint(root, topic) {
const [, endpointId, ...rest] = topic.startsWith(`${root}/`) ? topic.slice(root.length).split("/") : [];
return endpointId && rest.length === 1 && rest[0] === "alexaDirective" ? endpointId : null;
}
/** Where the answer to a directive goes. "alexaResponce" is how the backend and Alex2ESP spell it. */
export const response = (root, endpointId) => `${root}/${endpointId}/alexaResponce`;
/** Where the answer goes once a DeferredResponse was sent for the directive. */