API Overview

A FlexusL instance is a package of resources that include cloud servers, EIPs, EVS disks, CBR vaults, and HSS. Cloud servers are servers in a FlexusL instance.

This section describes some common APIs of FlexusL instances. Before using APIs, learn Calling APIs to use APIs smoothly.

• You can use the APIs according to the sequence from subscribing to a FlexusL instance to logging in to the FlexusL instance according to Table 1.

  Table 1 APIs used from subscription to login to a FlexusL instance

  API	Description
  Purchasing a FlexusL Instance	Used to purchase one or more FlexusL instances.
  Querying Created FlexusL Instances	Used to query details about a FlexusL instance, including the status, name, and elastic IP address (EIP) of the FlexusL instance.
  Resetting Cloud Server Passwords in a Batch	Used to reset the passwords of FlexusL instance management accounts (root or Administrator) in batches.
  Remote login	There is no API for remote login. Log in to FlexusL using the following methods: Logging In to a Linux FlexusL Instance Using CloudShell Logging In to a FlexusL Instance Using VNC You can also select other login modes by referring to Login Modes.

• You can use common APIs listed in Table 2 to maintain FlexusL instances.

  Table 2 Common O&M APIs

  API	Description
  Starting Cloud Servers in a Batch	Used to restart cloud servers in batches based on the specified cloud server IDs.
  Restarting Cloud Servers in a Batch	Used to restart cloud servers in batches based on specified cloud server IDs.
  Stopping Cloud Servers in a Batch	Used to stop cloud servers in batches based on the specified cloud server IDs.
  Modifying the Cloud Server Information of a FlexusL Instance	Used to modify the cloud server information. Currently, the cloud server name, description, and hostname can be modified.
  Querying the Remaining Traffic of the Data Package in a FlexusL Instance	Used to query the remaining traffic of the data package in a FlexusL instance.
  Renewing a FlexusL Instance	Used to manually renew the subscription to a FlexusL instance.
  Unsubscribing from a FlexusL Instance	Used to manually unsubscribe from a FlexusL instance.