nativescript-paytm

Works on Android and iOS. For use in India to pay via Paytm.

Installation

tns plugin add @nstudio/nativescript-paytm

Usage

You will need a working backend server to generate paytm orders. Do not generate the order or checksum in the app.

Typescript / Angular

import {
    Paytm,
    Order,
    TransactionCallback,
    IOSCallback
} from "nativescript-paytm";

export function onPayWithPaytm(args: observable.EventData) {
    paytm.setIOSCallbacks({
        didFinishedResponse: function(response) {
            console.log(response);
        },
        didCancelTransaction: function() {
            console.log("User cancelled transaction");
        },
        errorMissingParameterError: function(error) {
            console.log(error);
        }
    });

    // Sample order
    const order: Order = {
        // This will fail saying duplicate order id
        // generate your own order to test this.
        MID: "Tomcas09769922377481",
        ORDER_ID: "ORDER8874",
        CUST_ID: "CUST6483",
        INDUSTRY_TYPE_ID: "Retail",
        CHANNEL_ID: "WAP",
        TXN_AMOUNT: "10.00",
        WEBSITE: "APP_STAGING",
        CALLBACK_URL: "https://pguat.paytm.com/paytmchecksum/paytmCallback.jsp",
        CHECKSUMHASH:
            "NDspZhvSHbq44K3A9Y4daf9En3l2Ndu9fmOdLG+bIwugQ6682Q3JiNprqmhiWAgGUnNcxta3LT2Vtk3EPwDww8o87A8tyn7/jAS2UAS9m+c="
    };

    paytm.createOrder(order);

    paytm.initialize("STAGING"); // set to PRODUCTION when you go live

    paytm.startPaymentTransaction({
        someUIErrorOccurred: function(inErrorMessage) {
            console.log(inErrorMessage);
        },
        onTransactionResponse: function(inResponse) {
            console.log(inResponse);
        },
        networkNotAvailable: function() {
            console.log("Network not available");
        },
        clientAuthenticationFailed: function(inErrorMessage) {
            console.log(inErrorMessage);
        },
        onErrorLoadingWebPage: function(
            iniErrorCode,
            inErrorMessage,
            inFailingUrl
        ) {
            console.log(iniErrorCode, inErrorMessage, inFailingUrl);
        },
        onBackPressedCancelTransaction: function() {
            console.log("User cancelled transaction by pressing back button");
        },
        onTransactionCancel: function(inErrorMessage, inResponse) {
            console.log(inErrorMessage, inResponse);
        }
    });
}

NOTE: If you are using Sandbox credentials, then you won't be able to see the option to pay with Credit/Debit card or netbanking. That is perfectly normal. Once you get staging and production credentials from paytm, you will be able to use it just fine.

API

setIOSCallbacks (object with callback methods for iOS) : void - Used to set the iOS Callbacks Available callbacks are

didFinishedResponse (response) : void
didCancelTransaction () : void
errorMissingParameterError (response): void

createOrder (order object) : void - Used to create an order using paytm order object. Please refer the usage guide for sample order.

initialize (string) : void - Used to initialise paytm environment. Accepted strings are "STAGING" and "PRODUCTION"

startPaymentTransaction (object with callback methods for Android) : void - Used to start a transaction. Available callbacks are

someUIErrorOccurred (inErrorMessage) : void
onTransactionResponse (inResponse) : void // transaction successful
networkNotAvailable () : void
clientAuthenticationFailed (inErrorMessage) : void
onErrorLoadingWebPage (iniErrorCode, inErrorMessage, inFailingUrl) : void
onBackPressedCancelTransaction ()
onTransactionCancel (inErrorMessage, inResponse) : void

The callback method names are self explanatory.

License

Apache License Version 2.0, January 2004