pybundlr 0.1.3

Simple py driver for bundlr

pybundlr

Simple py driver for bundlr.

• Constructed by wrapping bundlr CLI.
• Pypi: Main, test
• GitHub: https://github.com/oceanprotocol/pybundlr

Installation

Ensure prerequisites:

• Linux/MacOS
• Python 3.8.5+
• Bundlr CLI: npm install -g @bundlr-network/client

Open a new terminal and:

#Create & activate venv
python -m venv venv
source venv/bin/activate

#main install
pip3 install pybundlr

Using Pybundlr Library

First, a quick example that reads information from a bundlr node. In this case, a balance.

In terminal, go into Python console: python.

In Python console:

import pybundlr
eth_address = "0x7BA3d8551A6f2C70a5d47bb448BcF7EF69661822"
bal = pybundlr.balance(eth_address, "matic")
print(f"{eth_address[:4]}'s MATIC balance in bundlr node: {bal} wei")

Exit the Python console for the next step.

Now, for more thorough example. We'll create a file, publish it online, then read it back.

The bundlr node will need funds to pay for storage. So, please ensure that you have a Polygon account that holds some MATIC. Just a few cents' worth should be enough.

In terminal, export the private key of your Polygon account:

export TEST_PRIVATE_KEY1=<your private key>

In terminal, go into Python console: python.

In Python console:

import pybundlr
import os
import requests

eth_private_key = os.getenv('REMOTE_TEST_PRIVATE_KEY1')

#create test file
file_name = "/tmp/testfile.txt"
content_in = "test content" + "\n"
with open(file_name, 'a') as f:
    f.write(content_in)

#fund the node, and upload the file
url = pybundlr.fund_and_upload(file_name, "matic", eth_private_key)
print(f"Uploaded file. It's online at: {url}")

#retreive the result
result = requests.get(url)
content_out = result.text
assert content_out == content_in

This example was on Polygon mainnet, with currency = "matic". Pybundlr also works on Ethereum mainnet ("ethereum"), Arweave ("arweave"), and more.

The code itself has the full interface and behavior.

Development

• Developers flow - to further develop pybundlr
• Release process - to do a new release of pybundlr