API Overview

APIs for ECS include native OpenStack APIs and ECS APIs. ECS APIs are recommended.

**Table 1** ECS APIs
Type	Description
Lifecycle management	Create, delete, or query ECSs.
Status management	Modify ECS specifications and reinstall or change the ECS OS.
Batch operations	Start, restart, stop, or modify ECSs in a batch.
Flavor management	Query details about flavors and extended flavor information.
NIC management	Add or delete ECS NICs in a batch. Bind or unbind a private IP address to or from an ECS NIC.
Disk management	Attach, detach, or query ECS disks.
Tenant quota management	Query the quotas of a tenant, including the quota limit and used quotas.
Task status management	Query asynchronous API execution status, such as creating or deleting ECSs, performing batch operations on ECSs, or performing operations on NICs.
Tag management	Create, delete, or query ECS D2 tags. Tags can be added or deleted in a batch.
ECS group management	Create or delete an ECS group, add an ECS to an ECS group, or delete an ECS from an ECS group.

**Table 2** Native OpenStack APIs
Type	Description
API version query	Query all API versions. Query a specified API version.
Lifecycle management	Create, delete, modify, or query ECSs.
Status management	Start, stop, restart, lock, or unlock ECSs; modify ECS specifications; roll back ECS specifications modification.
Network management	Query ECS tenants or networks.
Image management	Delete or query images. This image management API has been discarded. Use the IMS API.
Security group management	Add, remove, query, create, update, or delete security groups and security group rules.
Flavor management	Query ECS flavors and details.
NIC management	Add, delete, or query ECS NICs.
Disk management	Attach, detach, or query ECS disks.
Metadata management	Update, set, delete, query, obtain, or modify ECS metadata.
Tenant quota management	Query tenant quotas.
Key and password management	Query, create, or delete SSH keys.
Floating IP address management	Allocate, release, create, query, or delete floating IP addresses. This floating IP address management API has been discarded. Use the network service API.
ECS group management	Create, query, or delete ECS groups.
ECS operation management	Query ECS operations or a specified operation by request ID.
ECS console management	Obtain ECS management console logs.
Snapshot management	Create, query, or delete snapshots. The snapshot management API has been discarded. Use the storage service API.
Tag management	Create, delete, or query ECS D1 tags.