UPI INTENT

Request Details

Parameter Name	Data Type	Mandatory	Description
`merchantOrderId`	String	Yes	Unique order ID generated by merchant
`amount`	long	Yes	Amount of order in Paisa
`contraints`	List<InstrumentConstraint>	No	Different type of constraints that must be applied to the payment
`deviceOS`	String	No	Operating system of the device. Allowed values are: • iOS • ANDROID
`merchantCallbackScheme`	String	No	Required only in case targetApp = `PHONEPE` and deviceOS = `IOS`
`targetApp`	String	No	The target app identifier for the UPI Intent flow. For IOS: PHONEPE, GPAY, PAYTM. For Android: com.phonepe.app, net.one97.paytm

Sample Request

public async Task<IActionResult> CustomPay()
    {
        var merchantOrderID = $"Order_{DateTime.UtcNow:yyyyMMddHHmmssfff}";

        var metaInfo = MetaInfo.Builder()
                .SetUdf1("xyz")
                .Build();

        var payRequest = PgPaymentRequest.UpiIntentPayRequestBuilder()
        .SetMerchantOrderId(merchantOrderID)
        .SetAmount(100)
        .SetDeviceOS("IOS")
        .SetTargetApp("PHONEPE")
        .SetMerchantCallBackScheme("")
        .SetMetaInfo(metaInfo)
        .SetExpireAfter(300)
        .Build();

        _logger.LogInformation("Custom Pay Request:\n{Request}", JsonSerializer.Serialize(payRequest, JsonOptions.IndentedWithRelaxedEscaping));
        try
        {
            var response = await _customCheckoutClient.Pay(payRequest);
            _logger.LogInformation("Custom Pay Response:\n{Response}", JsonSerializer.Serialize(response, JsonOptions.IndentedWithRelaxedEscaping));
            return Ok(response);
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "Custom Pay API Failed");
            return StatusCode(500, new { message = ex.Message });
        }
    }

Extract the intentUrl from the response received.

Response Details

Property	Type	Description
`orderId`	String	Order Id created by PhonePe
`state`	String	State of the order. Initially it will be PENDING.
`expireAt`	Long	Order expire date in epoch
`IntentUrl`	String	Intent url according to the targetApp mentioned in the request