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 Upgrading an Instance
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 Reassigning Replicas of a Topic for 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 Reassigning 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 Querying vCPUs of a Kafka Flavor