mpesasync 0.1.0a0

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Mpesasync

A asynchronous python library to the Mpesa Daraja API.

Features

This includes the following:

1. A python library to accept send and receive MPESA payments in less than 10 lines of code.
2. A sample implementation of the library in fast api.

Installation

$ pip install mpesasync

Development

• Create a virtual environment python -m venv venv
• Activate your virtual environment $source venv\bin\activate or in windows > venv\scripts\activate
• Install Poetry pip install poetry
• Install project poetry install
• Run tests pytest

Getting started

To get started you need the following from the Mpesa Daraja Portal

[STK PUSH]

1. Your consumer key.
2. Your consumer secret.
3. The business shortcode.

[B2C/B2B]

5. Your organisation shortcode
6. Initiator name
7. Security credential
8. QueueTimeOutURL
9. Result url => This has to be a publicly accessible callback that mpesa will send transaction results to.

For testing purposes, you can get test credentials here. On the sandbox portal, create an new app and use the provided credentials.

Using the library

STK Push

1. Initialise and authenticate the STKPush sdk

from mpesasync import Mpesa, MpesaEnvironment
from mpesasync.lipa_na_mpesa import STKPush
mpesa_app = STKPush(
        Environment=MpesaEnvironment.production, # use sandbox to authenticate with sandbox credentials
        BusinessShortCode=1234, 
        CallBackURL="https://mydomain.com/path",
        PassKey="" # use the passkey obtained from the daraja portal
    )
await mpesa_app.authorize(consumer_key="YOUR CONSUMER KEY",
                              consumer_secret="YOUR CONSUMER SECRET")

2. Send an STKPush prompt

await mpesa_app.stk_push(
        amount=1.0, phone_number="phone number"
    )

The phone number can be any of +254XXXXXXXXX, 254XXXXXXXXX, 0XXXXXXXXX, the SDK will sanitise the phone numbers for you.

If the transaction is sucessfull, mpesa will send a confirmation to your configured callback url. You can also use the library to parse the json data. A callback implemented in FastAPI could look like.

## main.py

from mpesasync.contracts import STKPushResult

from typing import Optional

from fastapi import FastAPI

app = FastAPI()

@app.get("stkpush/callback")
def stk_push_callback(data: STKPushResult):
    ## do your zing
    print(data)
    return {"OK"}

Start the server

$ uvicorn main:app --reload