A flutter plugin to invoke UPI apps on the phone for Android.
FlutterUPI Plugin #
A flutter plugin to invoke UPI apps on the phone for Android and get the transaction information in response. This plugin supports only Android as of now.
Getting Started #
Simply import the plugin
And then use the
initiateTransaction method as shown in the code below.
String response = await FlutterUpi.initiateTransaction( app: FlutterUpiApps.PayTM, pa: "receiver@upi", pn: "Receiver Name", tr: "UniqueTransactionId", tn: "This is a transaction Note", am: "5.01", mc: "YourMerchantId", // optional cu: "INR", url: "https://www.google.com", ); print(response);
response is a
String that contains all the relevant information. Here is how the String looks like.
Please note that some parameters in the response can be undefined when using different apps.
Parsing the Response #
You can write your own logic to parse the response string or you can use the
FlutterUpiResponse class to create a
Map out of it.
FlutterUpiResponse flutterUpiResponse = FlutterUpiResponse(response); print(flutterUpiResponse.txnId); // prints transaction id print(flutterUpiResponse.txnRef); //prints transaction ref print(flutterUpiResponse.Status); //prints transaction status print(flutterUpiResponse.approvalRefNo); //prints approval reference number print(flutterUpiResponse.responseCode); //prints the response code
Supported Apps and Platforms #
As of now the plugin only supports Android. Since I am not an iOS developer, I have only been able to write the code for Android. If you are interested, feel free to get in touch or create PR if you can do this for iOS as well.
The plugins supports three apps as of now which I have tested this plugin with. You can use the predefined constants in the
FlutterUpiApps class and pass it to the
app named argument in the
FlutterUpiApps.BHIMUPI will launch the BHIM UPI App
FlutterUpiApps.GooglePay will launch the GooglePay App
FlutterUpiApps.PayTM will launch the PayTM App
FlutterUpiApps.PhonePe will launch the PhonePe App
FlutterUpiApps.MiPay will launch the MiPay App
FlutterUpiApps.AmazonPay will launch the AmazonPay App
FlutterUpiApps.TrueCallerUPI will launch the TrueCallerUPI App
FlutterUpiApps.MyAirtelUPI will launch the MyAirtelUPI App
Error Responses #
response String can contain any of the following strings as well.
app_not_installed : Application not installed.
invalid_params : Request parameters are wrong.
user_canceled : User canceled the flow.
null_response : No data received.
You need to write your own code to handle these responses in your app. Check out the example folder for more implementation details.