Connecting to a blockchain

Once you have installed CosmPy, you can connect and begin interacting with Cosmos-based blockchains. You can do so by running the following command:

import cosmpy
from cosmpy.aerial.client import LedgerClient, NetworkConfig
 
# Connecting to the Fetch.ai mainnet
ledger_client = LedgerClient(NetworkConfig.fetch_mainnet())

In the code snippet above, we are using the LedgerClient as a client object which takes a NetworkConfig as an argument. For ease of use, network configurations are provided automatically. For instance, NetworkConfig.fetch_mainnet() is the configuration for the Fetch ledger ↗️. However, CosmPy allows you to customize the network configuration and interact with other chains.

Below, you can find an example of a custom network configuration:

cfg = NetworkConfig(
    chain_id="cosmoshub-4",
    url="grpc+https://grpc-cosmoshub.blockapsis.com:429",
    fee_minimum_gas_price=1,
    fee_denomination="uatom",
    staking_denomination="uatom",
)
 
ledger_client = LedgerClient(cfg)