Why batch operations reduce round trips in Rest API

Introduction

Batch operations let you send many requests at once instead of one by one. This saves time and makes your program faster.

When you need to get or update many items from a server at the same time.

When you want to reduce waiting time caused by many small requests.

When your app needs to work faster by sending fewer messages over the internet.

When the server supports batch requests to handle multiple actions in one call.

When you want to save network resources and reduce server load.

Syntax

Rest API

POST /batch
Content-Type: application/json

{
  "requests": [
    {"method": "GET", "path": "/items/1"},
    {"method": "POST", "path": "/items", "body": {"name": "NewItem"}}
  ]
}

The batch request is usually a POST with a list of smaller requests inside.

Each request in the batch has its own method, path, and optional body.

Examples

This batch asks the server to get user 123 and delete post 456 in one call.

Rest API

POST /batch
Content-Type: application/json

{
  "requests": [
    {"method": "GET", "path": "/users/123"},
    {"method": "DELETE", "path": "/posts/456"}
  ]
}

This batch updates a product price and then fetches the updated product details.

Rest API

POST /batch
Content-Type: application/json

{
  "requests": [
    {"method": "PUT", "path": "/products/789", "body": {"price": 19.99}},
    {"method": "GET", "path": "/products/789"}
  ]
}

Sample Program

This program sends one batch request to get three items at once. It prints the status and the combined response.

Rest API

import requests

batch_url = "https://api.example.com/batch"

batch_payload = {
    "requests": [
        {"method": "GET", "path": "/items/1"},
        {"method": "GET", "path": "/items/2"},
        {"method": "GET", "path": "/items/3"}
    ]
}

response = requests.post(batch_url, json=batch_payload)

print("Status code:", response.status_code)
print("Response JSON:", response.json())

Important Notes

Batch operations reduce the number of times your app talks to the server, which cuts down waiting time.

Not all servers support batch requests, so check the API documentation first.

Batch responses usually include results for each request, so you can handle them separately.

Summary

Batch operations group many requests into one to save time and network use.

This reduces the number of round trips between your app and the server.

Using batch requests can make your app faster and more efficient.