Why batch operations reduce round trips in Rest API - See It in Action

Why Batch Operations Reduce Round Trips

📖 Scenario: Imagine you have a list of tasks to send to a server. Sending each task one by one takes a lot of time because each task needs a separate trip to the server. Batch operations let you send many tasks in one trip, saving time and effort.

🎯 Goal: You will create a simple program that shows how sending tasks one by one takes more trips, and how sending them in a batch reduces the number of trips to the server.

📋 What You'll Learn

Create a list of tasks with exact names

Create a batch size variable

Write code to split tasks into batches

Print the number of batches sent

💡 Why This Matters

🌍 Real World

Batch operations are used in apps and websites to send or receive many items at once, like uploading photos or sending messages.

💼 Career

Understanding batch operations helps in building efficient APIs and services that save time and reduce server load.

1

Create a list of tasks

Create a list called tasks with these exact strings: 'task1', 'task2', 'task3', 'task4', 'task5', 'task6'.

Rest API

# Create the list of tasks
# Your code here

Need a hint?

Use square brackets [] to create a list and separate items with commas.

2

Set the batch size

Create a variable called batch_size and set it to 3.

Rest API

tasks = ['task1', 'task2', 'task3', 'task4', 'task5', 'task6']
# Set the batch size to 3
# Your code here

Need a hint?

Just assign the number 3 to the variable batch_size.

3

Split tasks into batches

Create a list called batches that contains sublists of tasks each with length batch_size. Use a for loop with variable i and list slicing tasks[i:i+batch_size].

Rest API

tasks = ['task1', 'task2', 'task3', 'task4', 'task5', 'task6']
batch_size = 3
# Create batches by slicing tasks in steps of batch_size
# Your code here

Need a hint?

Use a list comprehension with range stepping by batch_size and slice the list.

4

Print the number of batches sent

Print the text "Number of batches sent:" followed by the length of batches using print().

Rest API

tasks = ['task1', 'task2', 'task3', 'task4', 'task5', 'task6']
batch_size = 3
batches = [tasks[i:i+batch_size] for i in range(0, len(tasks), batch_size)]
# Print the number of batches
# Your code here

Need a hint?

Use print("Number of batches sent:", len(batches)) to show the result.