paytm

A Flutter plugin to use the Paytm as a payment gateway for accepting online payments in Flutter app.

For Testing/Staging credentials make sure appInvokeEnabled set to FALSE or Paytm APP is not installed on the device.

Example App in iOS

First of all get Credentials from Paytm

Plugin will only work with Production Keys https://dashboard.paytm.com/next/apikeys

Let’s begin

iOS Configuration:

In case merchant don’t have callback URL, Add an entry into Info.plist

  1. LSApplicationQueriesSchemes(Array) Item 0 (String)-> paytm iosInvoke

  2. Add a URL Scheme “paytm”+”MID” app-invoke-ios-inti

Start Payment

  void generateTxnToken(int mode) async {
    
        String orderId = DateTime.now().millisecondsSinceEpoch.toString();

        String callBackUrl = (testing
                ? 'https://securegw-stage.paytm.in'
                : 'https://securegw.paytm.in') +
            '/theia/paytmCallback?ORDER_ID=' +
            orderId;

        //Host the Server Side Code on your Server and use your URL here. The following URL may or may not work. Because hosted on free server.
        //Server Side code url: https://github.com/mrdishant/Paytm-Plugin-Server
        var url = 'https://desolate-anchorage-29312.herokuapp.com/generateTxnToken';

        var body = json.encode({
          "mid": mid,
          "key_secret": PAYTM_MERCHANT_KEY,
          "website": website,
          "orderId": orderId,
          "amount": amount.toString(),
          "callbackUrl": callBackUrl,
          "custId": "122",
          "mode": mode.toString(),
          "testing": testing ? 0 : 1
        });

        try {
          final response = await http.post(
            url,
            body: body,
            headers: {'Content-type': "application/json"},
          );
          print("Response is");
          print(response.body);
          String txnToken = response.body;
          setState(() {
            payment_response = txnToken;
          });

          var paytmResponse = Paytm.payWithPaytm(
              mid, orderId, txnToken, amount.toString(), callBackUrl, testing);

          paytmResponse.then((value) {
            print(value);
            setState(() {
              loading = false;
              print("Value is ");
              print(value);
              if(value['error']){
                payment_response = value['errorMessage'];
              }else{
                if(value['response']!=null){
                  payment_response = value['response']['STATUS'];
                }
              }
              payment_response += "\n"+value.toString();
            });
          });
        } catch (e) {
          print(e);
        }
  }

GENERATE TOKEN

For SERVER CODE: Paytm Plugin Server Code

Support

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For Cloning the example app code visit: Paytm Plugin

For any query : Mail me at mr.dishantmahajan@gmail.com

Libraries

paytm