Casper Python SDK

Python library for interacting with a CSPR node.

Installation

pip3 install pycspr

Usage

Cryptography

• How To: Apply a checksum ?

• How To: Create Key Pairs ?

• How To: Hash data ?

• How To: Sign data ?

Deploys

• How To: Transfer funds between 2 accounts ?

• How To: Delegate funds to a validator ?

• How To: Undelegate funds from a validator ?

• How To: Stake funds as a validator ?

• How To: Unstake funds as a validator ?

Smart Contracts

• How To: Install a smart contract ?

• How To: Invoke a smart contract ?

• How To: Query a smart contract ?

Node APIs

• How To: Use REST API ?

• How To: Use RPC API ?

• How To: Use Speculative RPC API ?

• How To: Use SSE API ?

Development

Pre-Requisites

1. Setup Local CCTL Network.

2. Install poetry.

Install SDK

cd YOUR_WORKING_DIRECTORY
git clone https://github.com/casper-network/casper-python-sdk.git
cd casper-python-sdk
poetry install

Testing

Important Environment Variables

• Mandatory

  • CCTL

    • path to local clone of CCTL repo

• Optional

  • PYCSPR_TEST_NODE_HOST

    • host of a test node
    • default = localhost

  • PYCSPR_TEST_NODE_PORT_REST

    • port of rest server exposed by test node
    • default = 14101

  • PYCSPR_TEST_NODE_PORT_RPC

    • port of json-rpc server exposed by test node
    • default = 11101

  • PYCSPR_TEST_NODE_PORT_SSE

    • port of sse server exposed by test node
    • default = 18101

  • PYCSPR_TEST_NODE_PORT_RPC_SPECULATIVE

    • port of speculative execution server exposed by test node
    • default = 25101

Running Tests

cd YOUR_WORKING_DIRECTORY/casper-python-sdk
poetry shell
pytest ./tests [TEST-FILTER]