UPI QR


Request Details

Parameter NameData TypeMandatoryDescription
merchantOrderIdStringYesUnique order ID generated by merchant
amountlongYesAmount of order in Paisa
contraintsList<InstrumentConstraint>NoDifferent type of constraints that must be applied to the payment
Sample Request
public async Task<IActionResult> CustomPay()
    {
        var merchantOrderID = $"Order_{DateTime.UtcNow:yyyyMMddHHmmssfff}";

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

        var payRequest = PgPaymentRequest.UpiQrRequestBuilder()
        .SetMerchantOrderId(merchantOrderID)
        .SetAmount(100)
        .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 qrData from the response received

Response Details

PropertyTypeDescription
orderIdStringOrder Id created by PhonePe
stateStringState of the order. Initially it will be PENDING.
expireAtLongOrder expire date in epoch
IntentUrlStringIntent url for the amount mentioned
qrDataStringQR Data which will be used to generate the QR
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