API Overview

**Table 1** APIs for managing instances
API	Description
Managing Lifecycle	Includes: Creating an Instance Listing All Instances Querying an Instance Deleting an Instance Modifying Instance Information Batch Restarting or Deleting Instances Obtaining Instance Configurations Modifying Instance Configurations
Instance Management	Includes: Resetting the Password Resetting Kafka Manager Password Restarting Kafka Manager Configuring Automatic Topic Creation Modifying the Private IP Address for Cross-VPC Access Querying Kafka Cluster Metadata Querying Coordinator Details of a Kafka Instance Reassigning Replicas of a Topic for a Kafka Instance Modifying Kafka Access Modes Querying the Disk Usage Status of Topics Initiating Partition Reassignment for a Kafka Instance Disabling Kafka Manager Deleting a User or Client Quota Querying User or Client Quotas Creating User or Client Quotas Modifying User or Client Quotas
Smart Connect	Includes: Enabling Smart Connect (Pay-per-Use Instance) Disabling Smart Connect (Pay-per-Use Instance) Creating a Smart Connect Task Querying Smart Connect Tasks Querying Smart Connect Task Details Deleting a Smart Connect Task Pausing a Smart Connect Task Restarting a Smart Connect Task Starting a Smart Connect Task or Restarting a Paused or Running Smart Connect Task
Specification Modification Management	Includes: Increasing Instance Specifications Querying Product Information for Instance Specification Modification
Topic Management	Includes: Producing Messages to Kafka Creating a Topic for a Kafka Instance Listing Topics of a Kafka Instance Modifying Topics of a Kafka Instance Batch Deleting Topics of a Kafka Instance Querying the Partition List of a Topic Querying the Current Producer List of a Topic Querying Topic Details
Managing Consumer Groups	Includes: Querying Consumer Group Details Querying All Consumer Groups Deleting Consumer Groups of a Kafka Instance in Batches Creating a Consumer Group Resetting Consumer Group Offset to the Specified Position Querying the Offset of a Consumer Group Modifying All Consumer Groups Querying a Specified Consumer Group Deleting a Specified Consumer Group Modifying a Specified Consumer Group Querying Topics of a Specified Consumer Group Querying Consumers in a Specified Consumer Group
User Management	Includes: Querying the User List Creating a User Deleting Users in Batches Resetting a User Password Modifying User Parameters Querying User Permissions Granting User Permissions
Managing Messages	Includes: Querying messages Querying a Message with a Specified Offset Querying a Message with a Specified Time Period Querying Offset of the Earliest Message in a Partition Querying Offset of the Latest Message in a Partition Deleting a Kafka Message
Background Task Management	Includes: Listing Background Tasks Querying a Background Task Deleting a Background Task
Tag Management	Includes: Batch Adding or Deleting Tags Listing Tags of an Instance Listing Tags of a Project
Diagnosis Management	Includes: Pre-check Before Diagnosing Message Stack Creating a Message Stack Diagnosis Task Querying the Message Stack Diagnosis Report List Batch Deleting Message Stack Diagnosis Reports Querying Diagnosis Report Details
Other APIs	Includes: Listing Maintenance Time Windows Listing AZ Information Querying Product Specifications List Querying Kafka Instance Monitoring Dimensions