Peach Partner Library

Overview

Peach Partner Library is a platform-agnostic Python package to help Payment Service Providers in integrating with PeachPayments.

Documentation:

Source Code: https://gitlab.com/peachpayments/peach-partner-python/

Key terms

Installation

Package requires Python 3.9+

# pip
$ pip3 install peachpayments-partner

# poetry
$ poetry add peachpayments-partner

Result codes

from peachpayments_partner.result_codes import result_codes

result_codes.TRANSACTION_SUCCEEDED.code == "000.000.000"
result_codes.get("000.000.000").name == "TRANSACTION_SUCCEEDED"
result_codes.get("000.000.000").description == "Transaction succeeded"

Authentication

Requests to Payment Service Provider

PeachPayments uses an authorization token (JWT) in each request made to the Payment Service Provider. This library provides the authentication.is_authenticated method, which takes the token as an argument and the authentication.get_key to collect the signing_key.

The is_authenticated method has only one required argument, the token. If it's called without the optional signing_key it will collect the key using the get_key method. If it's called without the optional audience it will try to use the environment variable AUTH0_AUDIENCE.

The method decodes the token. If that succeeds, it returns True. Otherwise, it raises an AuthError exception.

Formatting error responses

PeachPayments requires the error responses to be formatted in a specific way. This library provides the format_error_response method, which takes a dict containing error response as an argument and returns a formatted error response.

def format_error_response(code, errors, data):

The errors dict might look like this:

{
    "status": ["Not a valid string."],
    "code": ["Missing data for required field."],
}

The data dict might look like this:

{
  "status": 10
}

With the code as ResultCodes.INVALID_OR_MISSING_PARAMETER, the formatted error response will look similar to this:

{
    "result": {
      "code": "200.300.404",
      "description": "invalid or missing parameter",
      "parameterErrors": [
          {
              "value": 10,
              "name": "status",
              "message": "Not a valid string."
          },
          {
              "name": "code",
              "message": "Missing data for required field."
          }
      ]
  },
  "timestamp": "2021-08-03T16:16:30.992618Z"
}

Fixtures

This library provides examples of valid requests and responses.

An example of the recommended usage for testing:

import pytest
from copy import deepcopy
from peachpayments_partner.fixtures import DEBIT_RESPONSE

@pytest.fixture
def debit_response():
    return deepcopy(DEBIT_RESPONSE)