API Overview

A combination of these two types of APIs allows you to use all functions provided by ELB. Table 1 describes the APIs provided by ELB.

**Table 1** ELB API description
Type	Subtype	Description
ELB API	Load balancer	Creates, modifies, deletes a load balancer, shows the details of a load balancer, lists load balancers, and queries the status tree for a load balancer.
	Listener	Adds, modifies, and deletes a listener, shows the details of a listener, and lists listeners.
	Backend server group	Adds, modifies, and deletes a backend server group, shows the details of a backend server group, and lists backend server groups.
	Backend server	Adds, modifies, and removes a backend server, shows the details of a backend server, and lists backend servers.
	Health check	Configures, modifies, and disables a health check, and shows the details of a health check.
	Forwarding policy	Adds, modifies, and deletes a forwarding policy, shows the details of a forwarding policy, and lists forwarding policies.
	Forwarding rule	Adds, modifies, and deletes a forwarding rule, shows the details of a forwarding rule, and lists forwarding rules.
	Whitelist	Creates, modifies, and deletes a certificate, and lists whitelist.
	SSL certificate	Creates, modifies, and deletes a certificate, and lists certificates.
	Tag	Adds a tag to and deletes a tag from a load balancer, batch adds and deletes load balancer tags, lists all tags of a load balancer, lists tags of all load balancers, queries load balancers by tag, adds and deletes a tag to a listener, batch adds and deletes tags to a listener, lists all tags of a listener, lists tags of all listeners, and queries listeners by tag.
ELB enterprise project API	Load balancer	Creates, modifies, deletes a load balancer, shows the details of a load balancer, lists load balancers, and queries the status tree for a load balancer.
	Listener	Adds, modifies, and deletes a listener, shows the details of a listener, and lists listeners.
	Backend server group	Adds, modifies, and deletes a backend server group, shows the details of a backend server group, and lists backend server groups.
	Backend server	Adds, modifies, and removes a backend server, shows the details of a backend server, and lists backend servers.
	Health check	Configures, modifies, and disables a health check, and shows the details of a health check.
	Forwarding policy	Adds, modifies, and deletes a forwarding policy, shows the details of a forwarding policy, and lists forwarding policies.
	Forwarding rule	Adds, modifies, and deletes a forwarding rule, shows the details of a forwarding rule, and lists forwarding rules.
	Whitelist	Creates, modifies, and deletes a certificate, and lists whitelist.
	Certificate	Creates, modifies, and deletes a certificate, and lists certificates.