Monitoring deployed contracts in Blockchain / Solidity - Mini Project: Build & Apply

Monitoring Deployed Contracts

📖 Scenario: You are working as a blockchain developer. You have deployed several smart contracts on a blockchain network. Now, you want to monitor these deployed contracts to check their status and keep track of their addresses.

🎯 Goal: Build a simple Python script that stores deployed contract addresses, sets a monitoring threshold, filters contracts based on the threshold, and prints the filtered list.

📋 What You'll Learn

Create a dictionary with contract names and their deployed block numbers.

Add a variable to set a block number threshold for monitoring.

Filter contracts deployed after the threshold block number.

Print the filtered contracts.

💡 Why This Matters

🌍 Real World

Blockchain developers often need to monitor deployed smart contracts to track their deployment status and ensure they are active on the network.

💼 Career

This project teaches basic data handling and filtering skills useful for blockchain monitoring tools and DevOps automation scripts.

1

Create a dictionary of deployed contracts

Create a dictionary called deployed_contracts with these exact entries: 'TokenA': 1050, 'TokenB': 1105, 'TokenC': 980, 'TokenD': 1150

Blockchain / Solidity

# Create the deployed_contracts dictionary with contract names and block numbers
# Your code here

Need a hint?

Use curly braces {} to create a dictionary with keys as contract names and values as block numbers.

2

Set the block number threshold

Create a variable called block_threshold and set it to 1000

Blockchain / Solidity

deployed_contracts = {'TokenA': 1050, 'TokenB': 1105, 'TokenC': 980, 'TokenD': 1150}
# Set the block_threshold variable to 1000
# Your code here

Need a hint?

Just assign the number 1000 to the variable block_threshold.

3

Filter contracts deployed after the threshold

Create a new dictionary called recent_contracts that contains only the contracts from deployed_contracts where the block number is greater than block_threshold. Use a dictionary comprehension with contract and block as variables.

Blockchain / Solidity

deployed_contracts = {'TokenA': 1050, 'TokenB': 1105, 'TokenC': 980, 'TokenD': 1150}
block_threshold = 1000
# Create recent_contracts dictionary with contracts deployed after block_threshold
# Your code here

Need a hint?

Use a dictionary comprehension to filter items where block number is greater than block_threshold.

4

Print the filtered contracts

Write a print statement to display the recent_contracts dictionary.

Blockchain / Solidity

deployed_contracts = {'TokenA': 1050, 'TokenB': 1105, 'TokenC': 980, 'TokenD': 1150}
block_threshold = 1000
recent_contracts = {contract: block for contract, block in deployed_contracts.items() if block > block_threshold}
# Print the recent_contracts dictionary
# Your code here

Need a hint?

Use print(recent_contracts) to show the filtered contracts.