Increase the number of partitions of the topics given as the keys of. This can be either json or binary.

POST /consumers/{groupid}/instances/{name}/offsets, 3.3.6. shows REPLICA_NOT_AVAILABLE for the given replica and the replica will be created in the given log directory on the All requests require an origins value in their header, which is the source of the HTTP request. Retrieves a list of partitions for the topic. Type : < string, < integer (int32) > array > map. Incrementally update the configuration for the specified resources. The futures will If you want to subscribe the consumer to multiple topics that match a regular expression, you can use the topic_pattern string instead of the topics array. all operations that have not yet been completed will be aborted with a TimeoutException. After producing messages to topics and partitions, create a Kafka Bridge consumer. Note: it may take some time for changes made by createAcls or deleteAcls to be reflected Unique ID for the consumer instance in the group. Seek on a partition, so that a consumer starts receiving messages from the first or last offset position, or a given offset position. It may take several seconds after this method returns Configure HTTP-related properties to enable HTTP access to the Kafka cluster. Base URI used to construct URIs for subsequent requests against this consumer instance. new leaders. POST /topics/{topicname}/partitions/{partitionid}, 3.3.21. Strimzi, Strimzi Authors 2022 | Documentation distributed under CC-BY-4.0. Each entry in the map specifies the finalized feature to be added or updated or You can use the kafka-topics.sh utility to create topics. During this time, Admin.listTopics() and Admin.describeTopics(Collection) the returned AlterClientQuotasResult: The following exceptions can be anticipated when calling get() on the futures from the to the corresponding topic. This operation is not transactional so it may succeed for some replicas while fail for others. If delete.topic.enable is false on the brokers, deleteTopics will mark kafka.consumer. List the consumer group offsets available in the cluster. POST /consumers/{groupid}/instances/{name}/positions/end, 3.3.9. The Kafka cluster has a topic with three partitions. The Linux Foundation has registered trademarks and uses trademarks. List the consumer groups available in the cluster. During this time, This is referred to in Apache Kafka as a seek operation. Otherwise, an error response with code 422 is returned.

The messages are converted into a JSON format. You will commit the offsets manually later in this quickstart. in the controller if the, Deletion of a finalized feature version is not a regular operation/intent. returned DescribeUserScramCredentialsResult: This operation is supported by brokers with version 2.7.0 or higher. DELETE /consumers/{groupid}/instances/{name}. for consumer-specific configuration passed only to the consumer. Securing connectivity to the Kafka cluster, 1.5. The returned configuration includes default values and the isDefault() method can be used to distinguish them Strimzi provides a way to run an Apache Kafka cluster on Kubernetes in various deployment configurations. Install the Strimzi Kafka Bridge to run in the same environment as your Kafka cluster. Name of the topic containing the partition. Use the properties file to specify Kafka and HTTP-related properties, and to enable distributed tracing. The specified consumer instance was not found. Loggers are formatted as follows: Where is the identifier of the specific operation. The allowable message format for the consumer, which can be binary (default) or json. List of topics to which the consumer will subscribe. Use the Strimzi Kafka Bridge to make HTTP requests to a Kafka cluster.

Youll need a running Kafka cluster that was deployed by the Cluster Operator in a Kubernetes namespace.

The Content-Type must not be set if the POST request has an empty body. If the request is successful, the Kafka Bridge returns an offsets array, along with a 200 code and a content-type header of application/vnd.kafka.v2+json. In this quickstart, you will produce and consume messages in JSON format. Producing messages to topics and partitions, 2.6. API request and response bodies are always encoded as JSON. This operation is supported by brokers with version 0.10.1.0 or higher. Sends one or more records to a given topic, optionally specifying a partition, key, or both. You can set a different log level for each operation that is defined by the Kafka Bridge OpenAPI specification. Retrieves a list of the topics to which the consumer is subscribed. Delete the Kafka Bridge consumer by sending a DELETE request to the instances endpoint. Run the Kafka Bridge script using the configuration properties as a parameter: Check to see that the installation was successful in the log. Seek to a specific offset for partition 0 of the quickstart-bridge-topic topic: The Kafka Bridge returns messages from the offset that you seeked to. In the response from the Kafka Bridge, an Access-Control-Allow-Origin header is returned. This operation is not transactional so it may succeed for some topics while fail for others. This operation enables to find Retrieves information about the Kafka Bridge instance, in JSON format. Name of the subscribed consumer to retrieve records from.

Name of the topic to send records to or retrieve metadata from. The default HTTP configuration for the Kafka Bridge to listen on port 8080. The partitions endpoint provides an alternative method for specifying a single destination partition for all messages as a path parameter. succeeded or failed in the controller. If the request is successful, the Kafka Bridge returns a 204 (No Content) code only. When sending messages using the /topics endpoint, you enter the message payload in the request body, in the records parameter. It is only allowed The header information is added to the request. No offsets will be returned if specified. If the request is successful, the Kafka Bridge returns a 204 code. Once the grace period is over, If set to read_uncommitted (default), all transaction records are retrieved, indpendent of any transaction outcome. Commits a list of consumer offsets. List of topic partitions to which the consumer is subscribed. You can also use the GET /openapi method to retrieve the OpenAPI v2 specification in JSON format. You can also use ACLs in Kafka brokers to restrict the topics that can be consumed and produced using the Kafka Bridge. done by setting the allowDowngrade flag to true in the. Subscribing a Kafka Bridge consumer to topics, 2.7. If the origin or method is rejected, an error message is returned. Configure standard Kafka-related properties, including properties specific to the Kafka consumers and producers. Subscribe the consumer to the bridge-quickstart-topic topic that you created earlier, in Producing messages to topics and partitions: The topics array can contain a single topic (as shown here) or multiple topics. The response header returns allowed origins, methods and headers. You can describe the topics to which the consumer will subscribe in a list (of Topics type) or as a topic_pattern field. The response shows the originating URL is allowed. to become aware that the partitions have new leaders. List of topic partitions to assign to the consumer. As well as enabling HTTP access to a Kafka cluster, HTTP properties provide the capability to enable and define access control for the Kafka Bridge through Cross-Origin Resource Sharing (CORS). strimziio In this quickstart, you have used the Strimzi Kafka Bridge to perform several common operations on a Kafka cluster. You can use the API to create and manage consumers and send and receive records over HTTP rather than the native Kafka protocol. If you attempt to add an ACL that duplicates an existing ACL, no error will be raised, but You can produce messages to topics in JSON format by using the topics endpoint. You can change the log level on each endpoint to produce more or less fine-grained logging information about the incoming and outgoing HTTP requests. expiryTimestamp() method of the returned RenewDelegationTokenResult, The following exceptions can be anticipated when calling get() on the futures obtained from the a particular resource are updated atomically. The unique name for the consumer instance. This operation is supported by brokers with version 1.1.0 or higher. The embedded data format is set per consumer, as described in the next section. In this quickstart, HTTP requests are formatted as curl commands that you can copy and paste to your terminal. This does not necessarily imply that it is ready to accept requests. Loggers are defined in the log4j.properties file, which has the following default configuration for healthy and ready endpoints: The log level of all other operations is set to INFO by default. Deletes a specified consumer instance. Use the offsets endpoint to manually commit offsets to the log for all messages received by the Kafka Bridge consumer. Applies specified updates to finalized features.

You can use the Kafka Bridge to integrate HTTP client applications with your Kafka cluster. success for all the brokers to become aware that the topics have been created. POST /consumers/{groupid}/instances/{name}/subscription, 3.3.11. returned DescribeFeaturesResult: The API takes in a map of finalized feature names to FeatureUpdate that needs to be A zipped distribution of the Strimzi Kafka Bridge is available for download.

The following exceptions can be anticipated when calling get() on the future from the A summary of the offsets for the topic partition. In order to succeed, the group must be empty. the topics for deletion, but not actually delete them. returned AlterUserScramCredentialsResult: The following exceptions can be anticipated when calling get() on the future from the Describes finalized as well as supported features. Describes finalized as well as supported features. The following exceptions can be anticipated when calling get() any of the futures from the Delete committed offsets for a set of partitions in a consumer group. delegationTokens() method of the returned DescribeDelegationTokenResult. ID of the partition to send records to or retrieve metadata from. Content-Type: application/vnd.kafka.json.v2+json, Content-Type: application/vnd.kafka.binary.v2+json. updates may succeed while the rest may fail. Query the information of all log directories on the given set of brokers. The following exceptions can be anticipated when calling get() on the futures success for all the brokers to become aware that the partitions have been created. Name of the consumer to subscribe to topics. It may take several seconds after this method returns success for all the brokers in the cluster Comma-separated list of allowed CORS origins. the returned AlterPartitionReassignmentsResult: For possible error codes, refer to LeaveGroupResponse. The consumer is referred to as a Kafka Bridge consumer. For example, this simple request header specifies the origin as https://strimzi.io. GET /topics/{topicname}/partitions/{partitionid}/offsets, Producing messages to topics and partitions, If you deployed Strimzi on Kubernetes, you can create a topic using the, If an empty response is returned, produce more records to the consumer as described in. return successfully in this case. POST /consumers/{groupid}/instances/{name}/positions/beginning, 3.3.8. no changes will be made. Config entries where isReadOnly() is true cannot be updated.

Change the log directory for the specified replicas. For each message, the offsets array describes: The partition that the message was sent to, The current message offset of the partition. Assigns one or more topic partitions to a consumer. Additional HTTP headers in requests describe the CORS origins that are permitted access to the Kafka cluster. This request is issued only to Topics : Topic operations to send messages to a specified topic or topic partition, optionally including message keys in requests. During this time, Admin.listTopics() and Admin.describeTopics(Collection) One or more consumer configuration options have invalid values. This operation is not transactional so it may succeed for some ACLs while fail for others. Retrieve the latest messages from the Kafka Bridge consumer by requesting data from the records endpoint. may continue to return information about the deleted topics. This procedure describes how to configure the Kafka and HTTP connection properties used by the Strimzi Kafka Bridge. GET /consumers/{groupid}/instances/{name}/records. This operation is supported by brokers with version 0.10.1.0 or higher. This operation is supported by brokers with version 2.2.0 or later if preferred election is use; Remove members from the consumer group by given member identities. It is supported broker when it is created later. The actual request will be sent with a Content-Type header. The configs for Response exceeds the maximum number of bytes the consumer can receive. The embedded data format is the format of the Kafka messages that are transmitted, over HTTP, from a producer to a consumer using the Kafka Bridge. Restore the default message retrieval behavior by seeking to the last offset for the same partition. and use non-standard headers. Authentication and encryption between HTTP clients and the Kafka Bridge is not supported directly by the Kafka Bridge. only on Kafka clusters which use Raft to store metadata, rather than ZooKeeper. The value of config entries where isSensitive() is true is always null so that sensitive information The following exceptions can be anticipated when calling get() on the futures obtained from In production, HTTP clients can call this endpoint repeatedly (in a loop). sales-lead-0002 is sent directly to partition 2. sales-lead-0003 is sent to a partition in the bridge-quickstart-topic topic using a round-robin method. You configure the Kafka Bridge, as any other Kafka client, using appropriate prefixes for Kafka-related properties. A preflighted request sends a HTTP OPTIONS request as an initial check that the actual request is safe to send. Describes all entities matching the provided filter that have at least one client quota configuration If a name is not specified, a randomly generated name is assigned. Check if the bridge is running. The request is issued to any random List of partition offsets from which the subscribed consumer will next fetch records. GET /topics/{topicname}/partitions, 3.3.20. After creating a consumer, all subsequent GET requests must provide an Accept header in the following format: The EMBEDDED-DATA-FORMAT is either json or binary. For a list of trademarks of The Linux Foundation, please see our Trademark Usage page. If set to latest (default), messages are read from the latest offset. New operations will not be accepted during the grace period. POST /topics/{topicname}/partitions/{partitionid}. CORS is a HTTP mechanism that allows browser access to selected resources from more than one origin. If the request is successful, the Kafka Bridge returns another 204 code. Repeat step two to retrieve messages from the Kafka Bridge consumer. in the output of describeAcls. Simple requests are suitable for standard requests using GET, HEAD, POST methods.

POST /consumers/{groupid}/instances/{name}/assignments, 3.3.5. The close operation has a grace period during which current operations will be allowed to The request for this operation MUST use the base URL (including the host and port) returned in the response from the POST request to /consumers/{groupid} that was used to create this consumer. The Kafka Bridge configuration properties are set. OAS provides a standard framework for describing and implementing HTTP APIs. It may take several seconds after CreateTopicsResult returns Copy the base URL (base_uri) to use in the other consumer operations in this quickstart. If you have not already done so, unzip the Kafka Bridge installation archive to any directory. Requests must use HTTP rather than HTTPS. Messages are retrieved from the latest offset by default.

All rights reserved. After committing offsets to the log, try out the endpoints for seeking to offsets. If the timeout period is reached without a response, an error is returned. When performing consumer operations, POST requests must provide the following Content-Type header if there is a non-empty body: When performing producer operations, POST requests must provide Content-Type headers specifying the embedded data format of the messages produced. You can configure your deployment to access the Kafka Bridge outside the Kubernetes cluster. complete, specified by the given duration. Name of the consumer to unsubscribe from topics. Retrieves the metadata about a given topic. This is specified in the format field, for example: The embedded data format specified when creating a consumer must match the data format of the Kafka messages it will consume. The Kafka Bridge installation archive is downloaded. Sets the maximum amount of time, in milliseconds, for the consumer to wait for messages for a request. The following exceptions can be anticipated when calling get() on the futures obtained from kafka.producer. This is required because the Kafka Bridge consumer that you created earlier, in Creating a Kafka Bridge consumer, was configured with the enable.auto.commit setting as false. Lists access control lists (ACLs) according to the supplied filter. Here the preflight request checks that a POST request is valid from https://strimzi.io. To commit offsets for all records fetched by the consumer, leave the request body empty. Requests sent from clients to the Kafka Bridge are sent without authentication or encryption. delegationToken() method of the returned CreateDelegationTokenResult, The following exceptions can be anticipated when calling get() on the futures obtained from the applied. This will Follow this procedure to install the Strimzi Kafka Bridge. Name of the consumer to assign topic partitions to.

Seek : Seek operations that enable a consumer to begin receiving messages from a given offset position. If set to false, message offsets must be committed manually. For example, when retrieving records for a subscribed consumer using an embedded data format of JSON, include this Accept header: Cross-Origin Resource Sharing (CORS) allows you to specify allowed methods and originating URLs for accessing the Kafka cluster in your Kafka Bridge HTTP configuration. Change the log directory for the specified replicas. Check if the bridge is ready and can accept requests. from user supplied values. Delete committed offsets for a set of partitions in a consumer group. The specified topic partition was not found. The validateOnly option is supported Create a Kafka Bridge consumer in a new consumer group named bridge-quickstart-consumer-group: The consumer is named bridge-quickstart-consumer and the embedded data format is set as json. The specified consumer instance was not found, or the specified consumer instance did not have one of the specified partitions assigned. The broker waits until the data to send exceeds this amount. Default is 30000 (30 seconds). Configures a subscribed consumer to seek (and subsequently read from) the offset at the end of one or more of the given topic partitions. org.apache.kafka.clients.admin.AdminClient, org.apache.kafka.clients.admin.KafkaAdminClient, Downgrade of feature version level is not a regular operation/intent. If a name is not specified, a randomly generated name is assigned. The Kafka Bridge returns an array of messagesdescribing the topic name, key, value, partition, and offsetin the response body, along with a 200 code. In this procedure, messages are produced to a topic called bridge-quickstart-topic. On confirmation, the actual request is sent. It returns a base URI which must be used to construct URLs for subsequent requests against this consumer instance. for general configuration that applies to producers and consumers, such as server connection and security. The methods provide JSON responses and HTTP response code error handling. deleted, along with the new max feature version level value. This operation is supported by brokers with version 1.0.0 or higher. After retrieving messages from a Kafka Bridge consumer, try committing offsets to the log. succeed at the partition level only if the group is not actively subscribed List of subscribed topics and partitions. returned DescribeClientQuotasResult: This operation is supported by brokers with version 2.6.0 or higher. Two embedded data formats are supported: JSON and binary. A Kafka cluster is running on the host machine. This overrides the default fetch behavior for consumers. If the replica already exists on the broker, the replica will be moved to the given Creates access control lists (ACLs) which are bound to specific resources. List of consumer offsets to commit to the consumer offsets commit log. Before you can perform any consumer operations in the Kafka cluster, you must first create a consumer by using the consumers endpoint.

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