@azure/event-hubs/dist/esm/eventHubProducerClient.d.ts

Azure Event Hubs SDK for JS.

import { CreateBatchOptions, EventHubClientOptions, GetEventHubPropertiesOptions, GetPartitionIdsOptions, GetPartitionPropertiesOptions, SendBatchOptions } from "./models/public.js";
import { EventDataBatch } from "./eventDataBatch.js";
import { EventHubProperties, PartitionProperties } from "./managementClient.js";
import { NamedKeyCredential, SASCredential, TokenCredential } from "@azure/core-auth";
import { AmqpAnnotatedMessage } from "@azure/core-amqp";
import { EventData } from "./eventData.js";
import { OperationOptions } from "./util/operationOptions.js";
/**
 * The `EventHubProducerClient` class is used to send events to an Event Hub.
 *
 * There are multiple ways to create an `EventHubProducerClient`
 * - Use the connection string from the SAS policy created for your Event Hub instance.
 * - Use the connection string from the SAS policy created for your Event Hub namespace,
 * and the name of the Event Hub instance
 * - Use the full namespace like `<yournamespace>.servicebus.windows.net`, and a credentials object.
 *
 * Optionally, you can also pass an options bag to configure the retry policy or proxy settings.
 *
 */
export declare class EventHubProducerClient {
    /**
     * Describes the amqp connection context for the client.
     */
    private _context;
    /**
     * The options passed by the user when creating the EventHubClient instance.
     */
    private _clientOptions;
    /**
     * Map of partitionId to senders
     */
    private _sendersMap;
    /**
     * Indicates whether or not the EventHubProducerClient should enable idempotent publishing to Event Hub partitions.
     * If enabled, the producer will only be able to publish directly to partitions;
     * it will not be able to publish to the Event Hubs gateway for automatic partition routing
     * nor will it be able to use a partition key.
     * Default: false
     */
    private _enableIdempotentRetries?;
    /**
     * The set of options that can be specified to influence publishing behavior specific to the configured Event Hub partition.
     * These options are not necessary in the majority of scenarios and are intended for use with specialized scenarios,
     * such as when recovering the state used for idempotent publishing.
     */
    private _partitionOptions?;
    /**
     * @readonly
     * The name of the Event Hub instance for which this client is created.
     */
    get eventHubName(): string;
    /**
     * @readonly
     * The fully qualified namespace of the Event Hub instance for which this client is created.
     * This is likely to be similar to <yournamespace>.servicebus.windows.net.
     */
    get fullyQualifiedNamespace(): string;
    /**
     * The name used to identify this EventHubProducerClient.
     * If not specified or empty, a random unique one will be generated.
     */
    readonly identifier: string;
    /**
     * The `EventHubProducerClient` class is used to send events to an Event Hub.
     * Use the `options` parmeter to configure retry policy or proxy settings.
     * @param connectionString - The connection string to use for connecting to the Event Hub instance.
     * It is expected that the shared key properties and the Event Hub path are contained in this connection string.
     * e.g. 'Endpoint=sb://my-servicebus-namespace.servicebus.windows.net/;SharedAccessKeyName=my-SA-name;SharedAccessKey=my-SA-key;EntityPath=my-event-hub-name'.
     * @param options - A set of options to apply when configuring the client.
     * - `retryOptions`   : Configures the retry policy for all the operations on the client.
     * For example, `{ "maxRetries": 4 }` or `{ "maxRetries": 4, "retryDelayInMs": 30000 }`.
     * - `webSocketOptions`: Configures the channelling of the AMQP connection over Web Sockets.
     * - `userAgent`      : A string to append to the built in user agent string that is passed to the service.
     */
    constructor(connectionString: string, options?: EventHubClientOptions);
    /**
     * The `EventHubProducerClient` class is used to send events to an Event Hub.
     * Use the `options` parmeter to configure retry policy or proxy settings.
     * @param connectionString - The connection string to use for connecting to the Event Hubs namespace.
     * It is expected that the shared key properties are contained in this connection string, but not the Event Hub path,
     * e.g. 'Endpoint=sb://my-servicebus-namespace.servicebus.windows.net/;SharedAccessKeyName=my-SA-name;SharedAccessKey=my-SA-key;'.
     * @param eventHubName - The name of the specific Event Hub to connect the client to.
     * @param options - A set of options to apply when configuring the client.
     * - `retryOptions`   : Configures the retry policy for all the operations on the client.
     * For example, `{ "maxRetries": 4 }` or `{ "maxRetries": 4, "retryDelayInMs": 30000 }`.
     * - `webSocketOptions`: Configures the channelling of the AMQP connection over Web Sockets.
     * - `userAgent`      : A string to append to the built in user agent string that is passed to the service.
     */
    constructor(connectionString: string, eventHubName: string, options?: EventHubClientOptions);
    /**
     * The `EventHubProducerClient` class is used to send events to an Event Hub.
     * Use the `options` parmeter to configure retry policy or proxy settings.
     * @param fullyQualifiedNamespace - The full namespace which is likely to be similar to
     * <yournamespace>.servicebus.windows.net
     * @param eventHubName - The name of the specific Event Hub to connect the client to.
     * @param credential - An credential object used by the client to get the token to authenticate the connection
     * with the Azure Event Hubs service.
     * See &commat;azure/identity for creating credentials that support AAD auth.
     * Use the `AzureNamedKeyCredential` from &commat;azure/core-auth if you want to pass in a `SharedAccessKeyName`
     * and `SharedAccessKey` without using a connection string. These fields map to the `name` and `key` field respectively
     * in `AzureNamedKeyCredential`.
     * Use the `AzureSASCredential` from &commat;azure/core-auth if you want to pass in a `SharedAccessSignature`
     * without using a connection string. This field maps to `signature` in `AzureSASCredential`.
     * @param options - A set of options to apply when configuring the client.
     * - `retryOptions`   : Configures the retry policy for all the operations on the client.
     * For example, `{ "maxRetries": 4 }` or `{ "maxRetries": 4, "retryDelayInMs": 30000 }`.
     * - `webSocketOptions`: Configures the channelling of the AMQP connection over Web Sockets.
     * - `userAgent`      : A string to append to the built in user agent string that is passed to the service.
     */
    constructor(fullyQualifiedNamespace: string, eventHubName: string, credential: TokenCredential | NamedKeyCredential | SASCredential, options?: EventHubClientOptions);
    /**
     * Creates an instance of `EventDataBatch` to which one can add events until the maximum supported size is reached.
     * The batch can be passed to the {@link sendBatch} method of the `EventHubProducerClient` to be sent to Azure Event Hubs.
     *
     * Events with different values for partitionKey or partitionId will need to be put into different batches.
     * To simplify such batch management across partitions or to have the client automatically batch events
     * and send them in specific intervals, use `EventHubBufferedProducerClient` instead.
     *
     * The below example assumes you have an array of events at hand to be batched safely.
     * If you have events coming in one by one, `EventHubBufferedProducerClient` is recommended instead
     * for effecient management of batches.
     *
     * Example usage:
     * ```ts
     * const client = new EventHubProducerClient(connectionString);
     * let batch = await client.createBatch();
     * for (let i = 0; i < messages.length; i++) {
     *  if (!batch.tryAdd(messages[i])) {
     *    await client.sendBatch(batch);
     *    batch = await client.createBatch();
     *    if (!batch.tryAdd(messages[i])) {
     *      throw new Error("Message too big to fit")
     *    }
     *    if (i === messages.length - 1) {
     *      await client.sendBatch(batch);
     *    }
     *   }
     * }
     * ```
     *
     * @param options -  Configures the behavior of the batch.
     * - `partitionKey`  : A value that is hashed and used by the Azure Event Hubs service to determine the partition to which
     * the events need to be sent.
     * - `partitionId`   : Id of the partition to which the batch of events need to be sent.
     * - `maxSizeInBytes`: The upper limit for the size of batch. The `tryAdd` function will return `false` after this limit is reached.
     * - `abortSignal`   : A signal the request to cancel the operation.
     * @returns Promise<EventDataBatch>
     * @throws Error if both `partitionId` and `partitionKey` are set in the options.
     * @throws Error if the underlying connection has been closed, create a new EventHubProducerClient.
     * @throws AbortError if the operation is cancelled via the abortSignal in the options.
     */
    createBatch(options?: CreateBatchOptions): Promise<EventDataBatch>;
    /**
     * Get the information about the state of publishing for a partition as observed by the `EventHubProducerClient`.
     * This data can always be read, but will only be populated with information relevant to the active features
     * for the producer client.
     *
     * @param partitionId - Id of the partition from which to retrieve publishing properties.
     * @param options - The set of options to apply to the operation call.
     * - `abortSignal`  : A signal the request to cancel the send operation.
     * @returns Promise<void>
     * @throws AbortError if the operation is cancelled via the abortSignal.
     */
    private getPartitionPublishingProperties;
    /**
     * Sends an array of events as a batch to the associated Event Hub.
     *
     * Azure Event Hubs has a limit on the size of the batch that can be sent which if exceeded
     * will result in an error with code `MessageTooLargeError`.
     * To safely send within batch size limits, use `EventHubProducerClient.createBatch()` or
     * `EventHubBufferedProducerClient` instead.
     *
     * Example usage:
     * ```ts
     * const client = new EventHubProducerClient(connectionString);
     * await client.sendBatch(messages);
     * ```
     *
     * @param batch - An array of {@link EventData} or `AmqpAnnotatedMessage`.
     * @param options - A set of options that can be specified to influence the way in which
     * events are sent to the associated Event Hub.
     * - `abortSignal`  : A signal the request to cancel the send operation.
     * - `partitionId`  : The partition this batch will be sent to. If set, `partitionKey` can not be set.
     * - `partitionKey` : A value that is hashed to produce a partition assignment. If set, `partitionId` can not be set.
     *
     * @returns Promise<void>
     * @throws MessageTooLargeError if all the events in the input array cannot be fit into a batch.
     * @throws AbortError if the operation is cancelled via the abortSignal.
     * @throws MessagingError if an error is encountered while sending a message.
     * @throws Error if the underlying connection or sender has been closed.
     */
    sendBatch(batch: EventData[] | AmqpAnnotatedMessage[], options?: SendBatchOptions): Promise<void>;
    /**
     * Sends a batch of events created using `EventHubProducerClient.createBatch()` to the associated Event Hub.
     *
     * Events with different values for partitionKey or partitionId will need to be put into different batches.
     * To simplify such batch management across partitions or to have the client automatically batch events
     * and send them in specific intervals, use `EventHubBufferedProducerClient` instead.
     *
     * The below example assumes you have an array of events at hand to be batched safely.
     * If you have events coming in one by one, `EventHubBufferedProducerClient` is recommended instead
     * for effecient management of batches.
     *
     * Example usage:
     * ```ts
     * const client = new EventHubProducerClient(connectionString);
     * let batch = await client.createBatch();
     * for (let i = 0; i < messages.length; i++) {
     *  if (!batch.tryAdd(messages[i])) {
     *    await client.sendBatch(batch);
     *    batch = await client.createBatch();
     *    if (!batch.tryAdd(messages[i])) {
     *      throw new Error("Message too big to fit")
     *    }
     *    if (i === messages.length - 1) {
     *      await client.sendBatch(batch);
     *    }
     *   }
     * }
     * ```
     * @param batch - A batch of events that you can create using the {@link createBatch} method.
     * @param options - A set of options that can be specified to influence the way in which
     * events are sent to the associated Event Hub.
     * - `abortSignal`  : A signal the request to cancel the send operation.
     *
     * @returns Promise<void>
     * @throws AbortError if the operation is cancelled via the abortSignal.
     * @throws MessagingError if an error is encountered while sending a message.
     * @throws Error if the underlying connection or sender has been closed.
     */
    sendBatch(batch: EventDataBatch, options?: OperationOptions): Promise<void>;
    /**
     * Closes the AMQP connection to the Event Hub instance,
     * returning a promise that will be resolved when disconnection is completed.
     * @returns Promise<void>
     * @throws Error if the underlying connection encounters an error while closing.
     */
    close(): Promise<void>;
    /**
     * Provides the Event Hub runtime information.
     * @param options - The set of options to apply to the operation call.
     * @returns A promise that resolves with information about the Event Hub instance.
     * @throws Error if the underlying connection has been closed, create a new EventHubProducerClient.
     * @throws AbortError if the operation is cancelled via the abortSignal.
     */
    getEventHubProperties(options?: GetEventHubPropertiesOptions): Promise<EventHubProperties>;
    /**
     * Provides the id for each partition associated with the Event Hub.
     * @param options - The set of options to apply to the operation call.
     * @returns A promise that resolves with an Array of strings representing the id for
     * each partition associated with the Event Hub.
     * @throws Error if the underlying connection has been closed, create a new EventHubProducerClient.
     * @throws AbortError if the operation is cancelled via the abortSignal.
     */
    getPartitionIds(options?: GetPartitionIdsOptions): Promise<Array<string>>;
    /**
     * Provides information about the state of the specified partition.
     * @param partitionId - The id of the partition for which information is required.
     * @param options - The set of options to apply to the operation call.
     * @returns A promise that resolves with information about the state of the partition .
     * @throws Error if the underlying connection has been closed, create a new EventHubProducerClient.
     * @throws AbortError if the operation is cancelled via the abortSignal.
     */
    getPartitionProperties(partitionId: string, options?: GetPartitionPropertiesOptions): Promise<PartitionProperties>;
}
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