To execute multiple Remote Procedure Calls (RPCs) within a single REST API request on a Junos device, the HTTP POST method must be used. This method allows the client to send a request body containing a payload. For batch RPC execution, this payload is an XML document that includes the element, which in turn contains multiple elements, each specifying a command to be executed. The server processes this single request and returns a consolidated response.

A. GET: This method is used to retrieve data for a single resource or RPC and does not support sending a request body containing a list of multiple RPCs.

B. PUT: This method is primarily used to replace an entire configuration resource at a specified URI, not for executing multiple operational commands.

D. HEAD: This method is similar to GET but only retrieves the HTTP headers of a response, not the actual content body. It cannot be used to execute RPCs.

1. Juniper Networks TechLibrary

Junos OS REST API Guide: In the section "Executing Multiple RPCs in a Single REST API Request

" the guide explicitly states

"To execute multiple RPCs in a single REST API request

you use the POST HTTP method and include the RPCs in the request body." It also provides an example using curl with the -X POST option. (Source: Juniper Networks Official Documentation)

2. Juniper Networks TechLibrary

Junos OS REST API Guide

Overview: The overview clarifies the usage of different HTTP methods. It specifies that POST is used for operations

including executing RPCs

which aligns with sending a batch of commands. (Source: Juniper Networks Official Documentation)