Tutorial on how to use the Nevermined Payments Protocol in Python

The objective of this library is to make possible the integration of Nevermined payments in the Python code ecosystem. This library provides a set of functions to interact with the Nevermined network, including the ability to register subscriptions and subscribe to web services and get the JWT access token to call them.

tip

To have full details about how to use the Payments Library, please visit the documentation section

Installation

Install the nevermined payments library using pip:

pip install payments-py

Initialize the payments library

info

In a previous tutorial we showed what is a Nvm Api Key and how to obtain it.

To initialize the payments library, you need to provide the following parameters:

• Nvm Api key: It's a string that identifies the session key of the account abstraction and some extra data as the marketplace auth token. It works similar to a jwt but for blockchain accounts. You can find more in zeroDev docs.
• Environment: It's an enum that represents the environment where the library will interact with the Nevermined network. It can be Environment.appTesting or Environment.appArbitrum.
• App id: It's a string that represents the app id. Currently is optional.
• Version: It's a string that represents the version of the app. Currently is optional.

from nevermined_payments import Payments

payments = Payments(nvm_api_key=nvm_api_key, environment=Environment.appTesting, app_id="your_app_id", version="1.0.0")

Using payments library

Once you have initialized the payments library, you can use the methods as following:

    response = payment.create_subscription(name="test-py", description="test", price=1000000, token_address="0x75faf114eafb1BDbe2F0316DF893fd58CE46AA4d", amount_of_credits=100, duration=30, tags=["test"])

In the following link you can find the complete documentation of the library: payments-py.

Example

Here you can find an example of how to use the payments library and try yourself: