Alex2Node/dist/esm/device/Device.d.ts
David feff828ec1 dispatch: typed handlers, respond/defer/error, automatic ErrorResponse, watchdog
src/dispatcher.ts routes a directive to capability.on(name | "*"), device.onDirective() or
device.onReportState(), with the payload checked by the descriptor of the interface. The
DirectiveContext answers with respond/report/defer/error; respond() and report() start from
device.state(). A handler or 1.x listener that throws or rejects is answered with INTERNAL_ERROR
(an AlexaError with itself) and reported through "error", never as an unhandled rejection.
Undeclared interface, unknown directive, AdjustMode on an unordered mode and a missing handler
get INVALID_DIRECTIVE, a bad payload INVALID_VALUE; a device with an "Event" or "ReportState"
listener keeps the answer to itself. Every answer passes the dispatcher: the first one per
correlationToken is published, a second is refused. No answer within answerWithinMs (6500,
0 = off, unref'd timer) sends INTERNAL_ERROR and emits "unanswered". A messageId that arrived
in the last 60 s is dropped. New: "unknownEndpoint", options answerUnknownEndpoints, publisher,
timers, and bridge.receive() to run a bridge without a broker. 168 tests pass (18 new).

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
2026-09-28 19:49:41 +00:00

162 lines
8.5 KiB
TypeScript

import { EventEmitter } from "events";
import { AlexaErrorResponse } from "../compat/AlexaErrorResponse.js";
import { AlexaInterface } from "../compat/AlexaInterface.js";
import { AlexaStatusMessage } from "../compat/AlexaStatusMessage.js";
import { DisplayCategory } from "../compat/enums.js";
import type { AlexaInterfaceType } from "../compat/enums.js";
import type { ChangeCause } from "../messages/types.js";
import type { DirectiveHandler, Fill } from "../dispatcher.js";
import type { DisplayCategoryName } from "../registry/catalog.js";
import type { Directives, InterfaceDescriptor, Properties } from "../registry/types.js";
import type { Publisher } from "../transport.js";
import { Capability } from "./Capability.js";
import type { AnyCapability, CapabilityJson, Declaration } from "./Capability.js";
import type { EndpointFields } from "./validate.js";
/** An endpoint as bridge.addDevice() takes it. */
export interface EndpointDefinition {
/** Up to 256 letters, digits, spaces and _ - = # ; : ? @ &. The same id at every discovery. */
endpointId: string;
/** What the user calls the device: letters, digits and spaces. */
name: string;
/** The first one is the category the Alexa app shows the device under. */
categories: Array<DisplayCategoryName | DisplayCategory>;
/** Shown in the Alexa app, up to 128 characters. Default: "Alexa to Node.js bridge". */
description?: string;
/** Up to 128 characters. Default: "Alex2Node". */
manufacturerName?: string;
manufacturer?: string;
model?: string;
serialNumber?: string;
firmwareVersion?: string;
softwareVersion?: string;
customIdentifier?: string;
/** Returned with every directive to the endpoint. Up to 5000 bytes; not a place for state. */
cookie?: Record<string, string>;
/** false: the device gets no Alexa.EndpointHealth unless it declares one. */
endpointHealth?: boolean;
}
/** An endpoint object of a discovery answer (alexa-discovery-objects.html, "Endpoint object"). */
export interface EndpointJson extends EndpointFields {
capabilities: CapabilityJson[];
}
type DeclarationArguments<O, I extends boolean> = {} extends Declaration<O, I> ? [options?: Declaration<O, I>] : [options: Declaration<O, I>];
declare class Device extends EventEmitter {
private rootTopic;
name: string;
endpointId: string;
displayCategory: Array<DisplayCategory> | null;
description: string;
manufacturerName: string;
manufacturer: string;
model: string;
softwareVersion: string;
serialNumber: string;
firmwareVersion: string;
customIdentifier: string;
cookie?: Record<string, string>;
/**
* Discovery lists the Alexa interface on the endpoint (alexa-interface.html: "You must explicitly identify your
* support for the Alexa interface"). The bridge sets it from its alexaInterface option.
*/
alexaInterface: boolean;
/**
* Discovery lists Alexa.EndpointHealth when the device did not declare it and is not a scene. On for a device of
* bridge.addDevice(), off for one of registerDevice(), which is announced as 1.x announced it.
*/
endpointHealth: boolean;
private capabilities;
/** Where a failed publish from this device or a message it built is reported; Alex2MQTT sets it (1.5.2). */
onPublishError?: (err: Error) => void;
/**
* What the device and the messages it builds publish through. The bridge sets it when the device is registered
* and clears it when the device is unregistered; a MemoryPublisher here tests a device without a broker. While it
* is null every send() resolves "" and reports why.
*/
publisher: Publisher | null;
/** Set by state(). */
stateProvider?: Fill;
/** Set by onReportState(). */
reportStateHandler?: DirectiveHandler<Record<string, never>>;
/** Set by onDirective(). */
directiveHandler?: DirectiveHandler;
/** client is ignored: in 1.x it was the broker client, and a device could only be built after connect(). */
constructor(client: unknown, rootTopic: string, name: string, endpointId: string, displayCategory: Array<DisplayCategory> | null, description?: string, manufacturerName?: string, manufacturer?: string, model?: string);
getName(): string;
setName(name: string): void;
getEndpointId(): string;
setDisplayCategory(category: DisplayCategory | DisplayCategory[]): void;
getDisplayCategory(): Array<DisplayCategory>;
setDescription(description: string): void;
getDescription(): string;
getErrorMessage(correlationToken: string): AlexaErrorResponse;
getStatusMessage(correlationToken: string, isResponse?: boolean, isDeferred?: boolean): AlexaStatusMessage;
/**
* A proactive Alexa.ChangeReport (1.5.1): add the changed properties (the default target), optionally
* .unchanged() then the others, and .send() - it goes to <root>/changeReport, which Alex2MQTT forwards to the Alexa
* event gateway with the user's token. Alexa only accepts it for capabilities registered with proactivelyReported.
* Without a changed property send() publishes nothing and resolves with "": Alex2MQTT would drop the report.
*/
getChangeReport(cause?: ChangeCause): AlexaStatusMessage;
/**
* Alexa.SceneController: answer an Activate / Deactivate directive with ActivationStarted / DeactivationStarted
* (1.5.1). Resolves with the topic published to, or "" when the publish failed (never rejects, 1.5.2).
*/
sendSceneResponse(correlationToken: string, activated: boolean, cause?: ChangeCause, sendAsync?: boolean): Promise<string>;
/**
* How the device reports its state, every retrievable property of it:
*
* blinds.state((s) => s.set(lift, "rangeValue", motor.position).health("OK"));
*
* ReportState is answered with it, and it is the context of every ctx.respond(), where the handler sets only what
* the directive changed. Alexa wants the whole state in both (alexa-response.html, "Synchronous response").
*/
state(fill: Fill): this;
/** Answer ReportState in a handler of its own, for a state that has to be read from the device first. */
onReportState(handler: DirectiveHandler<Record<string, never>>): this;
/** The handler for the directives of declared capabilities that have no handler of their own. */
onDirective(handler: DirectiveHandler): this;
/** The capability declared for the interface, under the instance for a generic controller. */
capability(namespace: string, instance?: string): AnyCapability | undefined;
/** The capabilities the device declared, in the order it declared them. */
getCapabilities(): AnyCapability[];
setManufacturerName(name: string): void;
getManufacturerName(): string;
setManufacturer(manufacturer: string): void;
getManufacturer(): string;
setModel(model: string): void;
getModel(): string;
getSoftwareVersion(): string;
/**
* Declare an interface of the device:
*
* lamp.add(PowerController, { proactivelyReported: true });
* blinds.add(RangeController, { instance: "Blind.Lift", friendlyNames: [asset("Alexa.Setting.Opening")],
* range: { min: 0, max: 100, precision: 1 } });
*
* Throws a DeclarationError that names the endpoint, the interface and the instance when Alexa would reject the
* capability; the device is then as it was before the call.
*/
add<P extends Properties, D extends Directives, O, I extends boolean>(descriptor: InterfaceDescriptor<P, D, O, I>, ...[options]: DeclarationArguments<O, I>): Capability<P, D, O>;
/**
* Declare an interface the 1.x way, by its name: options.retrievable / proactivelyReported / instance, then the
* add and set methods of the capability that is returned. Throws for a name that is not an interface. Anything
* else Alexa would reject is not refused here: check() lists it.
*/
addCapability(type: AlexaInterfaceType | string, options?: {
retrievable?: boolean;
proactivelyReported?: boolean;
instance?: string;
}): AlexaInterface;
/**
* What Alexa would reject in the device as it is declared now, one line for each: a name with punctuation, an
* interface declared twice. Also what a capability noted about its declaration. Empty when there is nothing.
* The bridge logs the lines when it answers a discovery.
*/
check(): string[];
/** The endpoint object for discovery. */
getJSON(): EndpointJson;
private fields;
private view;
private announced;
}
export default Device;