Alex Mikhalev
8 years ago
4 changed files with 5 additions and 446 deletions
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// Type definitions for paho-mqtt 1.0
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// Project: https://github.com/eclipse/paho.mqtt.javascript#readme
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// Definitions by: Alex Mikhalev <https://github.com/amikhalev>
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// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
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declare namespace Paho { |
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/** |
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* Send and receive messages using web browsers. |
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* <p> |
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* This programming interface lets a JavaScript client application use the MQTT V3.1 or |
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* V3.1.1 protocol to connect to an MQTT-supporting messaging server. |
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* |
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* The function supported includes: |
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* <ol> |
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* <li>Connecting to and disconnecting from a server. The server is identified by its host name and port number. |
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* <li>Specifying options that relate to the communications link with the server, |
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* for example the frequency of keep-alive heartbeats, and whether SSL/TLS is required. |
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* <li>Subscribing to and receiving messages from MQTT Topics. |
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* <li>Publishing messages to MQTT Topics. |
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* </ol> |
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* <p> |
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* The API consists of two main objects: |
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* <dl> |
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* <dt><b>{@link Paho.MQTT.Client}</b></dt> |
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* <dd>This contains methods that provide the functionality of the API, |
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* including provision of callbacks that notify the application when a message |
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* arrives from or is delivered to the messaging server, |
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* or when the status of its connection to the messaging server changes.</dd> |
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* <dt><b>{@link Paho.MQTT.Message}</b></dt> |
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* <dd>This encapsulates the payload of the message along with various attributes |
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* associated with its delivery, in particular the destination to which it has |
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* been (or is about to be) sent.</dd> |
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* </dl> |
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* <p> |
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* The programming interface validates parameters passed to it, and will throw |
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* an Error containing an error message intended for developer use, if it detects |
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* an error with any parameter. |
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* <p> |
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* |
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* @namespace Paho.MQTT |
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*/ |
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namespace MQTT { |
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/** |
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* The Quality of Service used to deliver a message. |
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* <dl> |
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* <dt>0 Best effort (default).</dt> |
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* <dt>1 At least once.</dt> |
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* <dt>2 Exactly once.</dt> |
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* </dl> |
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*/ |
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type Qos = 0 | 1 | 2; |
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interface MQTTError { |
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/** A number indicating the nature of the error. */ |
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errorCode: number; |
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/** Text describing the error */ |
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errorMessage: string; |
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} |
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interface WithInvocationContext { |
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/** |
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* <code>invocationContext</code> as passed in with the corresponding field in the connectOptions or |
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* subscribeOptions. |
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*/ |
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invocationContext: any; |
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} |
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interface ErrorWithInvocationContext extends MQTTError, WithInvocationContext { |
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} |
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interface OnSubscribeSuccessParams extends WithInvocationContext { |
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grantedQos: Qos; |
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} |
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/** |
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* Called when the connect acknowledgement has been received from the server. |
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* @param o |
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* A single response object parameter is passed to the onSuccess callback containing the following fields: |
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* <li><code>invocationContext</code> as passed in with the corresponding field in the connectOptions. |
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*/ |
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type OnSuccessCallback = (o: WithInvocationContext) => void; |
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/** |
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* Called when the subscribe acknowledgement has been received from the server. |
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* @param o |
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* A single response object parameter is passed to the onSuccess callback containing the following fields: |
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* <li><code>invocationContext</code> as passed in with the corresponding field in the connectOptions. |
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*/ |
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type OnSubscribeSuccessCallback = (o: OnSubscribeSuccessParams) => void; |
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/** |
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* Called when the connect request has failed or timed out. |
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* @param e |
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* A single response object parameter is passed to the onFailure callback containing the following fields: |
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* <li><code>invocationContext</code> as passed in with the corresponding field in the connectOptions. |
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* <li><code>errorCode</code> a number indicating the nature of the error. |
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* <li><code>errorMessage</code> text describing the error. |
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*/ |
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type OnFailureCallback = (e: ErrorWithInvocationContext) => void; |
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/** |
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* Called when a connection has been lost. |
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* @param error A single response object parameter is passed to the onConnectionLost callback containing the |
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* following fields: |
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* <li>errorCode |
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* <li>errorMessage |
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*/ |
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type OnConnectionLostHandler = (error: MQTTError) => void; |
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/** |
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* Called when a message was delivered or has arrived. |
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* @param message The {@link Paho.MQTT.Message} that was delivered or has arrived. |
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*/ |
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type OnMessageHandler = (message: Message) => void; |
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/** |
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* Attributes used with a connection. |
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*/ |
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interface ConnectionOptions { |
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/** |
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* If the connect has not succeeded within this number of seconds, it is deemed to have failed. |
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* @default The default is 30 seconds. |
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*/ |
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timeout?: number; |
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/** Authentication username for this connection. */ |
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userName?: string; |
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/** Authentication password for this connection. */ |
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password?: string; |
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/** Sent by the server when the client disconnects abnormally. */ |
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willMessage?: Message; |
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/** |
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* The server disconnects this client if there is no activity for this number of seconds. |
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* @default The default value of 60 seconds is assumed if not set. |
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*/ |
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keepAliveInterval?: number; |
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/** |
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* If true(default) the client and server persistent state is deleted on successful connect. |
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* @default true |
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*/ |
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cleanSession?: boolean; |
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/** If present and true, use an SSL Websocket connection. */ |
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useSSL?: boolean; |
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/** Passed to the onSuccess callback or onFailure callback. */ |
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invocationContext?: any; |
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/** |
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* Called when the connect acknowledgement has been received from the server. |
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*/ |
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onSuccess?: OnSuccessCallback; |
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/** |
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* Specifies the mqtt version to use when connecting |
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* <dl> |
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* <dt>3 - MQTT 3.1</dt> |
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* <dt>4 - MQTT 3.1.1 (default)</dt> |
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* </dl> |
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* @default 4 |
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*/ |
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mqttVersion?: 3 | 4; |
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/** |
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* Called when the connect request has failed or timed out. |
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*/ |
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onFailure?: OnFailureCallback; |
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/** |
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* If present this contains either a set of hostnames or fully qualified |
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* WebSocket URIs (ws://example.com:1883/mqtt), that are tried in order in place of the host and port
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* paramater on the construtor. The hosts are tried one at at time in order until one of then succeeds. |
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*/ |
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hosts?: string[]; |
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/** |
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* If present the set of ports matching the hosts. If hosts contains URIs, this property is not used. |
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*/ |
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ports?: number[]; |
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} |
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/** |
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* Used to control a subscription |
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*/ |
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interface SubscribeOptions { |
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/** the maximum qos of any publications sent as a result of making this subscription. */ |
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qos?: Qos; |
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/** passed to the onSuccess callback or onFailure callback. */ |
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invocationContext?: any; |
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/** called when the subscribe acknowledgement has been received from the server. */ |
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onSuccess?: OnSubscribeSuccessCallback; |
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/** called when the subscribe request has failed or timed out. */ |
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onFailure?: OnFailureCallback; |
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/** |
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* timeout which, if present, determines the number of seconds after which the onFailure calback is called. |
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* The presence of a timeout does not prevent the onSuccess callback from being called when the subscribe |
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* completes. |
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*/ |
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timeout?: number; |
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} |
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interface UnsubscribeOptions { |
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/** passed to the onSuccess callback or onFailure callback. */ |
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invocationContext?: any; |
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/** called when the unsubscribe acknowledgement has been received from the server. */ |
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onSuccess?: OnSuccessCallback; |
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/** called when the unsubscribe request has failed or timed out. */ |
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onFailure?: OnFailureCallback; |
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/** |
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* timeout which, if present, determines the number of seconds after which the onFailure calback is called. |
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* The presence of a timeout does not prevent the onSuccess callback from being called when the unsubscribe |
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* completes. |
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*/ |
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timeout?: number; |
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} |
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interface TraceElement { |
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severity: "Debug"; |
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message: string; |
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} |
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type TraceFunction = (element: TraceElement) => void; |
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/** |
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* The JavaScript application communicates to the server using a {@link Paho.MQTT.Client} object. |
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* |
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* Most applications will create just one Client object and then call its connect() method, |
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* however applications can create more than one Client object if they wish. |
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* In this case the combination of host, port and clientId attributes must be different for each Client object. |
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* |
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* The send, subscribe and unsubscribe methods are implemented as asynchronous JavaScript methods |
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* (even though the underlying protocol exchange might be synchronous in nature). |
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* This means they signal their completion by calling back to the application, |
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* via Success or Failure callback functions provided by the application on the method in question. |
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* Such callbacks are called at most once per method invocation and do not persist beyond the lifetime |
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* of the script that made the invocation. |
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* |
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* In contrast there are some callback functions, most notably {@link onMessageArrived}, |
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* that are defined on the {@link Paho.MQTT.Client} object. |
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* These may get called multiple times, and aren't directly related to specific method invocations made by the |
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* client. |
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* |
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*/ |
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class Client { |
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/** <i>read only</i> used when connecting to the server. */ |
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readonly clientId: string; |
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/** <i>read only</i> the server's DNS hostname or dotted decimal IP address. */ |
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readonly host: string; |
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/** <i>read only</i> the server's path. */ |
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readonly path: string; |
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/** <i>read only</i> the server's port. */ |
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readonly port: number; |
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/** function called with trace information, if set */ |
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trace?: TraceFunction; |
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/** |
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* called when a connection has been lost. after a connect() method has succeeded. |
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* Establish the call back used when a connection has been lost. The connection may be |
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* lost because the client initiates a disconnect or because the server or network |
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* cause the client to be disconnected. The disconnect call back may be called without |
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* the connectionComplete call back being invoked if, for example the client fails to |
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* connect. |
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* A single response object parameter is passed to the onConnectionLost callback containing the following |
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* fields: |
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* <li>errorCode |
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* <li>errorMessage |
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*/ |
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onConnectionLost: OnConnectionLostHandler; |
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/** |
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* called when a message has been delivered. |
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* All processing that this Client will ever do has been completed. So, for example, |
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* in the case of a Qos=2 message sent by this client, the PubComp flow has been received from the server |
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* and the message has been removed from persistent storage before this callback is invoked. |
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* Parameters passed to the onMessageDelivered callback are: |
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* <li>{@link Paho.MQTT.Message} that was delivered. |
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*/ |
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onMessageDelivered: OnMessageHandler; |
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/** |
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* called when a message has arrived in this Paho.MQTT.client. |
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* Parameters passed to the onMessageArrived callback are: |
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* <li> {@link Paho.MQTT.Message} that has arrived. |
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*/ |
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onMessageArrived: OnMessageHandler; |
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/* tslint:disable:unified-signatures */ |
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/* these cannot actually be neatly unified */ |
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/** |
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* @param host - the address of the messaging server as a DNS name or dotted decimal IP address. |
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* @param port - the port number to connect to |
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* @param path - the path on the host to connect to - only used if host is not a URI. Default: '/mqtt'. |
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* @param clientId - the Messaging client identifier, between 1 and 23 characters in length. |
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*/ |
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constructor(host: string, port: number, path: string, clientId: string); |
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/** |
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* @param host - the address of the messaging server as a DNS name or dotted decimal IP address. |
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* @param port - the port number to connect to |
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* @param clientId - the Messaging client identifier, between 1 and 23 characters in length. |
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*/ |
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constructor(host: string, port: number, clientId: string); |
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/** |
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* @param hostUri - the address of the messaging server as a fully qualified WebSocket URI |
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* @param clientId - the Messaging client identifier, between 1 and 23 characters in length. |
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*/ |
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constructor(hostUri: string, clientId: string); |
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/* tslint:enable:unified-signatures */ |
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/** |
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* Connect this Messaging client to its server. |
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* @throws {InvalidState} if the client is not in disconnected state. The client must have received |
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* connectionLost or disconnected before calling connect for a second or subsequent time. |
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*/ |
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connect(connectionOptions?: ConnectionOptions): void; |
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/** |
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* Normal disconnect of this Messaging client from its server. |
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* |
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* @throws {InvalidState} if the client is already disconnected. |
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*/ |
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disconnect(): void; |
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/** |
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* @returns True if the client is currently connected |
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*/ |
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isConnected(): boolean; |
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/** |
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* Get the contents of the trace log. |
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* |
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* @return {Object[]} tracebuffer containing the time ordered trace records. |
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*/ |
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getTraceLog(): any[]; |
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/** |
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* Start tracing. |
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*/ |
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startTrace(): void; |
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/** |
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* Stop tracing. |
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*/ |
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stopTrace(): void; |
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/** |
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* Send a message to the consumers of the destination in the Message. |
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* |
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* @param {Paho.MQTT.Message} message - <b>mandatory</b> The {@link Paho.MQTT.Message} object to be sent. |
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* @throws {InvalidState} if the client is not connected. |
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*/ |
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send(message: Message): void; |
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/** |
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* Send a message to the consumers of the destination in the Message. |
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* |
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* @param {string} topic - <b>mandatory</b> The name of the destination to which the message is to be sent. |
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* @param {string|ArrayBuffer} payload - The message data to be sent. |
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* @param {number} qos The Quality of Service used to deliver the message. |
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* <dl> |
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* <dt>0 Best effort (default). |
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* <dt>1 At least once. |
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* <dt>2 Exactly once. |
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* </dl> |
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* @param {Boolean} retained If true, the message is to be retained by the server and delivered to both |
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* current and future subscriptions. If false the server only delivers the message to current subscribers, |
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* this is the default for new Messages. A received message has the retained boolean set to true if the |
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* message was published with the retained boolean set to true and the subscrption was made after the |
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* message has been published. |
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* @throws {InvalidState} if the client is not connected. |
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*/ |
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send(topic: string, payload: string | ArrayBuffer, qos?: Qos, retained?: boolean): void; |
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/** |
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* Subscribe for messages, request receipt of a copy of messages sent to the destinations described by the |
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* filter. |
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* |
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* @param filter A filter describing the destinations to receive messages from. |
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* @param subcribeOptions Used to control the subscription |
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* @throws {InvalidState} if the client is not in connected state. |
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*/ |
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subscribe(filter: string, subcribeOptions?: SubscribeOptions): void; |
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/** |
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* Unsubscribe for messages, stop receiving messages sent to destinations described by the filter. |
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* |
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* @param filter - describing the destinations to receive messages from. |
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* @param unsubscribeOptions - used to control the subscription |
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* @throws {InvalidState} if the client is not in connected state. |
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*/ |
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unsubscribe(filter: string, unsubcribeOptions?: UnsubscribeOptions): void; |
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} |
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/** |
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* An application message, sent or received. |
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*/ |
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class Message { |
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/** |
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* <b>mandatory</b> The name of the destination to which the message is to be sent |
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* (for messages about to be sent) or the name of the destination from which the message has been received. |
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* (for messages received by the onMessage function). |
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*/ |
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destinationName?: string; |
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/** |
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* <i>read only</i> If true, this message might be a duplicate of one which has already been received. |
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* This is only set on messages received from the server. |
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*/ |
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readonly duplicate: boolean; |
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/** <i>read only</i> The payload as an ArrayBuffer. */ |
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readonly payloadBytes: ArrayBuffer; |
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/** |
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* <i>read only</i> The payload as a string if the payload consists of valid UTF-8 characters. |
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* @throw {Error} if the payload is not valid UTF-8 |
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*/ |
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readonly payloadString: string; |
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/** |
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* The Quality of Service used to deliver the message. |
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* <dl> |
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* <dt>0 Best effort (default). |
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* <dt>1 At least once. |
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* <dt>2 Exactly once. |
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* </dl> |
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* |
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* @default 0 |
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*/ |
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qos: number; |
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/** |
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* If true, the message is to be retained by the server and delivered to both current and future |
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* subscriptions. If false the server only delivers the message to current subscribers, this is the default |
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* for new Messages. A received message has the retained boolean set to true if the message was published |
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* with the retained boolean set to true and the subscription was made after the message has been published. |
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* |
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* @default false |
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*/ |
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retained: boolean; |
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/** |
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* @param {String|ArrayBuffer} payload The message data to be sent. |
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*/ |
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constructor(payload: string | ArrayBuffer); |
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} |
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} |
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} |
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