This is an async rust library for accessing the mpesa apis.

To get an access token

use serde::{Serialize, Deserialize};
use base64::{Engine as _, engine::general_purpose};

#[derive(Debug. Serialize, Deserialize)]
struct Response {
    access_token: String,
    expires_in: String,
}

#[tokio::main]
async fn main() {
    let consumer_key = "Your consumer key here".to_string();
    let consumer_secret = "Your consumer secret".to_string();
    let client = reqwest::Client::new();
    let auth = format!("{}:{}", consumer_key, consumer_secret);
    let auth = general_purpose::URL_SAFE.encode(auth);
    let body = client.get("mpesa token url here")
        .header("Authorization", format!("Basic {}", auth))
        .send()
        .await
        .unwrap();
    
    let bytes = body
        .bytes()
        .await
        .unwrap();

    let response: Response = serde_json::from_slice(bytes.as_ref())
        .unwrap();

    println!("{:?}", response);
}

Making a request

An Example of a Mpesa Express (STK Push) request:

let config = MpesaConfig::new().with_access_token();

/// Create a client to make requests with default config or you can provide your own check the docs for more info
let client = Client::with_config(config);

/// all fields must be provided as strings
let request = ExpressPushRequestArgs::default()
    .PartyA("")
    .PartyB("")
    .Amount("")
    .Password(shortcode, passkey, timestamp)
    .AccountReference("")
    .TransactionType("")
    .BusinessShortCode("")
    .CallbackURL("")
    .TransactionDesc("")
    .Timestamp("")
    .PhoneNumber("")
    .build()
    .unwrap();

let response = client
    ///the appropriate method is required for the respective api you are trying to access.
    .stkpush()
    .create(request)
    .await
    .unwrap();

println!("{:?}", response);

Methods to make requests to the mpesa api

To access different request use the following methods to access the apis mpesa provides.

1. Account Balance

AccountBalanceRequestArgs::Default()

3. B2B Express

B2bExpressRequestArgs::Default()

4. B2C Account Top Up

B2cTopUpRequestArgs::Default()

5. B2C

B2CRequestArgs::Default()

6. Business Buy Goods

BusinessBuyGoodsRequestArgs::Default()

7. Payment and Reconciliation

ReconciliationRequestArgs::Default()

8. Bill Manager Onboarding Generic API

BillOnboardingRequestArgs::Default()

9. Updating Optin Details

BillUpdateArgs::Default()

10. Business PayBill

BusinessPayBillRequestArgs::Default()

11. Cancel Single Invoicing

CancelInvoiceRequestArgs::Default()

12. Mpesa Express Query

ExpressQueryRequestArgs::Default()

13. QR code

QRRequestArgs::Default()

14. Mpesa Ratiba

RatibaRequestArgs::Default()

15. Reverse Transaction

ReversalRequestArgs::Default()

16. Mpesa Express (STK Push)

ExpressPushRequestArgs::Default()

17. Transaction Status

TransactionStatusRequestArgs::Default()

18. Tax Remit

TaxRemitRequestArgs::Default()

Note you can override the default configs eg. The Mpesa API urls. You can do this by using the

.with_access_token()
.with_api_url()
.with_environment()

functions when creating the client to override the default behaviour and switch url or switch url environments by specifying the environment, by passing this enum to the with_environment function.

pub enum Environment {
    Sandbox,
    Production,
}