Single Integration API

curl -u [YOUR_KEY_ID]:[YOUR_KEY_SECRET] \
-X POST https://api.razorpay.com/v1/orders \
-H "Content-Type: application/json" \
-d {
  "amount": 50000,
  "currency": "",
  "receipt": "receipt#1",
  "notes": {
    "key1": "value3",
    "key2": "value2"
  },
  "partial_payment": true,
  "customer_id": "cust_E9penp7VGhT5yt",
  "products": [],
  "payment_config": {
    "capture": "automatic",
    "capture_options": {
      "automatic_expiry_period": 12,
      "manual_expiry_period": 7200,
      "refund_speed": "optimum"
    }
  },
  "payment": {
    "amount": 100,
    "email": "john.smith@example.com",
    "contact": "+11234567890",
    "method": "card",
    "notes": {
      "key1": "value3",
      "key2": "value2"
    },
    "card": {
      "number": "4916 3338 9663 2957",
      "name": "John Smith",
      "expiry_month": "11",
      "expiry_year": "35",
      "cvv": "100"
    },
    "authentication": {
      "authentication_channel": "browser"
    },
    "browser": {
      "java_enabled": false,
      "javascript_enabled": false,
      "timezone_offset": 11,
      "color_depth": 23,
      "screen_width": 23,
      "screen_height": 100
    },
    "ip": "105.106.107.108",
    "referer": "https://merchansite.com/example/paybill"
  },
  "user_agent": "Mozilla/5.0"
}

{
  "razorpay_payment_id": "pay_29QQoUBi66xm2f",
  "razorpay_order_id": "order_9A33XWu170gUtm",
  "razorpay_signature": "9ef4dffbfd84f1318f6739a3ce19f9d85851857ae648f114332d8401e0949a3d"
}

{
   "error": {
   "code": "BAD_REQUEST_ERROR",
   "description": "The amount must be atleast INR 1.00",
   "source": "business",
   "step": "order_create",
   "reason": "input_validation_failed",
   "metadata": {},
   "field": "amount"
    }
}

{
   "error": {
   "code": "BAD_REQUEST_ERROR",
   "description": "Authentication failed due to incorrect OTP",
   "field": null,
   "source": "customer",
   "step": "payment_authentication",
   "reason": "invalid_otp",
   "metadata": {
       "order_id": "order_EKwxwAgItmmXdp"
    }
  }
}

{
   "error": {
   "code": "GATEWAY_ERROR",
   "description": "Authentication failed due to incorrect OTP",
   "field": null,
   "source": "customer",
   "step": "payment_authentication",
   "reason": "gateway failure",
   "metadata": {
   "order_id": "order_EKwxwAgItmmXdp",
   "payment_id": "pay_TKwxwAgItmmXdp"
    }
  }
}

curl -u [YOUR_KEY_ID]:[YOUR_KEY_SECRET] \
-X POST https://api.razorpay.com/v1/orders \
-H "Content-Type: application/json" \
-d{
 "id": "order_EKwxwAgItmmXdp",
 "payment": {
   "amount": 100,
   "currency": "",
   "method": "card",
   "card": {
     "number": "4916 3338 9663 2957",
     "name": "John Smith",
     "expiry_month": "11",
     "expiry_year": "30",
     "cvv": "100"
   },
   "notes": {
     "key1": "value3",
     "key2": "value2"
   }
 }
}

{
  "id": "order_EKwxwAgItmmXdp",
  "status": "attempted",
  "receipt": "receipt#1",
  "notes": {
    "key1": "value3",
    "key2": "value2"
  },
  "created_at": 1582628071,
  "amount": 50000,
  "amount_paid": 0,
  "amount_due": 50000,
  "currency": "",
  "offer_id": null,
  "attempts": 1,
  "transfers": [],
  "payment_workflow": {
    "id": "pay_FVmAstJWfsD3SO",
    "next": [
      {
        "action": "redirect",
        "url": "https://api.razorpay.com/v1/payments/pay_FVmAstJWfsD3SO/authorize"
      },
      {
        "action": "otp_generate",
        "url": "https://api.razorpay.com/v1/payments/pay_FVmAstJWfsD3SO/otp_generate?track_id=FVmAtLUe9XZSGM&key_id=<YOUR_KEY_ID>"
      }
    ]
  }
 }

generated_signature = hmac_sha256(order_id + "|" + razorpay_payment_id, secret);

if (generated_signature == razorpay_signature) {
    payment is successful
}

/**
* This class defines common routines for generating
* authentication signatures for Razorpay Webhook requests.
*/
public class Signature
{
    private static final String HMAC_SHA256_ALGORITHM = "HmacSHA256";
    /**
    * Computes RFC 2104-compliant HMAC signature.
    * * @param data
    * The data to be signed.
    * @param key
    * The signing key.
    * @return
    * The Base64-encoded RFC 2104-compliant HMAC signature.
    * @throws
    * java.security.SignatureException when signature generation fails
    */
    public static String calculateRFC2104HMAC(String data, String secret)
    throws java.security.SignatureException
    {
        String result;
        try {

            // get an hmac_sha256 key from the raw secret bytes
            SecretKeySpec signingKey = new SecretKeySpec(secret.getBytes(), HMAC_SHA256_ALGORITHM);

            // get an hmac_sha256 Mac instance and initialize with the signing key
            Mac mac = Mac.getInstance(HMAC_SHA256_ALGORITHM);
            mac.init(signingKey);

            // compute the hmac on input data bytes
            byte[] rawHmac = mac.doFinal(data.getBytes());

            // base64-encode the hmac
            result = DatatypeConverter.printHexBinary(rawHmac).toLowerCase();

        } catch (Exception e) {
            throw new SignatureException("Failed to generate HMAC : " + e.getMessage());
        }
        return result;
    }
}