How to add nodes in bulk using RestAPI?

Hi,

looks like you can create multiple new nodes as part of a new pool.

Creating, disabling, enabling, and deleting a node

To create a new node, use the following command syntax:

POST /mgmt/tm/ltm/node/ -d '{"name":"","partition":"","address":""}'

For example, to create a new node named test_node on the Common partition, type the following command:

POST /mgmt/tm/ltm/node/ -d '{"name":"test_node","partition":"Common","address":"10.99.5.2"}'

To create a new pool using new nodes, use the following command syntax:

POST /mgmt/tm/ltm/pool/ -d '{"name":"","partition":"","monitor":"//","members":[{"name":"","address":""}],"members":[{"name":":","address":""}]}'

Excellent reference:

K13225405: Common iControl REST API command examples

https://support.f5.com/csp/article/K13225405