1.1 Create a Go Directoryπ
Open the command palette and create a Go project directory with the following files - main.go, app.html and go.mod files.
Steps to integrate Razorpay Payment Gateway with Go SDK.
Follow the steps given below to integrate Razorpay Payment Gateway with your Go website. The integration process is explained using the files mentioned in the video.
File Name | Purpose |
---|---|
main.go | The main Go file where Orders API is integrated. |
app.html | Contains a form where the customers fills their details. Once the customer submits the form, the Orders API is fired and an |
go.mod | The .mod file defines the module path. |
To integrate Razorpay Payment Gateway on your Go website:
1.2 Integrate Orders API.
1.3 Add Checkout Options.
1.4 Build go.mod file.
Open the command palette and create a Go project directory with the following files - main.go, app.html and go.mod files.
ββOrder is an important step in the payment process.
Handy Tips
You can capture payments automatically with one-time Payment Capture setting configuration on the Razorpay Dashboard.
Create a file, for example, main.go
and add the API code given below:
Copyclient := razorpay.NewClient("YOUR_KEY_ID", "YOUR_SECRET")
data := map[string]interface{}{
"amount": 50000,
"currency": "INR",
"receipt": "some_receipt_id",
}
body, err := client.Order.Create(data, nil)
Copy{
"id": "order_IluGWxBm9U8zJ8",
"entity": "order",
"amount": 50000,
"amount_paid": 0,
"amount_due": 50000,
"currency": "INR",
"receipt": "receipt#1",
"offer_id": null,
"status": "created",
"attempts": 0,
"notes": [],
"created_at": 1582628071
}
Here is the list of parameters for creating the order:
amount
mandatoryinteger
The transaction amount, expressed in the currency subunit, such as paise (in case of INR). For example, for an actual amount of βΉ299.35, the value of this field should be 29935
.currency
mandatorystring
The currency in which the transaction should be made. See the list of supported currencies. Length must be of 3 characters.receipt
optionalstring
Pass the receipt id created for this order. Maximum length 40 characters.notes
optionaljson object
Optional notes for order. Key-value pair used to store additional information about the entity. Maximum 15 key-value pairs, 256 characters (maximum) each. For example, "note_key": "Beam me up Scottyβ
.partial_payment
optionalboolean
Indicates whether the customer can make a partial payment. Possible values:
true
: The customer can make partial payments.false
(default): The customer cannot make partial payments.When the order is created successfully, an order_id is returned in the response. You need to store against the order defined in your system.
Add the Razorpay Checkout options in your project. For example, if you are using HTML for your frontend, create a page called app.html and add the Pay button on your web page using the checkout code, Handler Function or Callback URL.
Handler Function | Callback URL |
---|---|
When you use this:
| When you use this:
|
Copy-paste the parameters as options
in your code:
Copy<button id="rzp-button1">Pay</button>
<script src="https://checkout.razorpay.com/v1/checkout.js"></script>
<script>
var options = {
"key": "YOUR_KEY_ID", // Enter the Key ID generated from the Dashboard
"amount": "50000", // Amount is in currency subunits. Default currency is INR. Hence, 50000 refers to 50000 paise
"currency": "INR",
"name": "Acme Corp",
"description": "Test Transaction",
"image": "https://example.com/your_logo",
"order_id": "order_IluGWxBm9U8zJ8", //This is a sample Order ID. Pass the `id` obtained in the response of Step 1
"handler": function (response){
alert(response.razorpay_payment_id);
alert(response.razorpay_order_id);
alert(response.razorpay_signature)
},
"prefill": {
"name": "Gaurav Kumar",
"email": "gaurav.kumar@example.com",
"contact": "9999999999"
},
"notes": {
"address": "Razorpay Corporate Office"
},
"theme": {
"color": "#3399cc"
}
};
var rzp1 = new Razorpay(options);
rzp1.on('payment.failed', function (response){
alert(response.error.code);
alert(response.error.description);
alert(response.error.source);
alert(response.error.step);
alert(response.error.reason);
alert(response.error.metadata.order_id);
alert(response.error.metadata.payment_id);
});
document.getElementById('rzp-button1').onclick = function(e){
rzp1.open();
e.preventDefault();
}
</script>
Copy<button id="rzp-button1">Pay</button>
<script src="https://checkout.razorpay.com/v1/checkout.js"></script>
<script>
var options = {
"key": "YOUR_KEY_ID", // Enter the Key ID generated from the Dashboard
"amount": "50000", // Amount is in currency subunits. Default currency is INR. Hence, 50000 refers to 50000 paise
"currency": "INR",
"name": "Acme Corp",
"description": "Test Transaction",
"image": "https://example.com/your_logo",
"order_id": "order_IluGWxBm9U8zJ8", //This is a sample Order ID. Pass the `id` obtained in the response of Step 1
"callback_url": "https://eneqd3r9zrjok.x.pipedream.net/",
"prefill": {
"name": "Gaurav Kumar",
"email": "gaurav.kumar@example.com",
"contact": "9999999999"
},
"notes": {
"address": "Razorpay Corporate Office"
},
"theme": {
"color": "#3399cc"
}
};
var rzp1 = new Razorpay(options);
document.getElementById('rzp-button1').onclick = function(e){
rzp1.open();
e.preventDefault();
}
</script>
Handy Tips
Test your integration using these test cards.
key
mandatorystring
API Key ID generated from the Razorpay Dashboard.
amount
mandatoryinteger
The amount to be paid by the customer in currency subunits. For example, if the amount is βΉ100, enter 10000
.
currency
mandatorystring
The currency in which the payment should be made by the customer. See the list of supported currencies.
name
mandatorystring
The business name shown on the Checkout form.
description
optionalstring
Description of the purchase item shown on the Checkout form. Must start with an alphanumeric character.
image
optionalstring
Link to an image (usually your business logo) shown on the Checkout form. Can also be a base64 string, if loading the image from a network is not desirable.
order_id
mandatorystring
Order ID generated via Razorpay Orders API.
prefill
object
You can prefill the following details at Checkout.
name
optionalstring
Cardholder's name to be pre-filled if customer is to make card payments on Checkout.email
optionalstring
Email address of the customer.contact
optionalstring
Phone number of the customer. The expected format of the phone number is + {country code}{phone number}
. If the country code is not specified, 91
will be used as the default value. This is particularly important while prefilling contact
of customers with phone numbers issued outside India. Examples:
+91
is added to it as +919977665544.method
optionalstring
Pre-selection of the payment method for the customer. Will only work if contact
and email
are also pre-filled. Possible values
card
netbanking
wallet
emi
upi
notes
optionalobject
Set of key-value pairs that can be used to store additional information about the payment. It can hold a maximum of 15 key-value pairs, each 256 characters long (maximum).
theme
object
Thematic options to modify the appearance of Checkout.
hide_topbar
optionalboolean
Used to display or hide the top bar on the Checkout form. This bar shows the selected payment method, phone number and gives the customer the option to navigate back to the start of the Checkout form. Possible values are:
true
: Hides the top barfalse
(default): Displays the top bar.color
optionalstring
Enter your brand colour's HEX code to alter the appearance of Checkout form.backdrop_color
optionalstring
Enter a HEX code to change the Checkout's backdrop colour.modal
object
Options to handle the Checkout modal.
backdropclose
optionalboolean
Indicates whether clicking the translucent blank space outside the Checkout form should close the form. Possible values are:
true
: Closes the form when your customer clicks outside the checkout form.false
(default): Does not close the form when customer clicks outside the checkout form.escape
optionalboolean
Indicates whether pressing the escape key should close the Checkout form. Possible values are:
true
(default): Closes the form when the customer presses the escape key.false
: Does not close the form when the customer presses the escape key.handleback
optionalboolean
Determines whether Checkout must behave similar to the browser when back button is pressed. Possible values:
true
(default): Checkout behaves similarly to the browser. That is, when the browser's back button is pressed, the Checkout also simulates a back press. This happens as long as the Checkout modal is open.false
: Checkout does not simulate a back press when browser's back button is pressed.confirm_close
optionalboolean
Determines whether a confirmation dialog box should be shown when customers attempt to close Checkout. Possible values:
true
: Confirmation dialog box is shown.false
(default): Confirmation dialog box is not shown.ondismiss
optionalfunction
Used to track the status of Checkout. You can pass a modal object with ondismiss: function(){} as options. This function is called when the modal is closed by the user.animation
optionalboolean
Show an animation before loading of Checkout.
true
(default): Animation appears.false
: Animation does not appear.subscription_id
optionalstring
If you are accepting recurring payments using Razorpay Checkout, you should pass the relevant subscription_id
to the Checkout. Know more about Subscriptions on Checkout.
subscription_card_change
optionalboolean
Permit or restrict customer from changing the card linked to the subscription. You can also do this from the hosted page. Possible values:
true
: Allow the customer to change the card from Checkout.false
(default): Do not allow the customer to change the card from Checkout.recurring
optionalboolean
Determines if you are accepting recurring (charge-at-will) payments on Checkout via instruments such as emandate, paper NACH and so on. Possible values:
true
: You are accepting recurring payments.false
(default): You are not accepting recurring payments.callback_url
optionalstring
Customers will be redirected to this URL on successful payment. Ensure that the domain of the Callback URL is whitelisted.
redirect
optionalboolean
Determines whether to post a response to the event handler post payment completion or redirect to Callback URL. callback_url
must be passed while using this parameter. Possible values:
true
: Customer is redirected to the specified callback URL in case of payment failure.false
(default): Customer is shown the Checkout popup to retry the payment.customer_id
optionalstring
Unique identifier of customer. Used for:
timeout
optionalinteger
Sets a timeout on Checkout, in seconds. After the specified time limit, customer will not be able to use Checkout.
remember_customer
optionalboolean
Determines whether to allow saving of cards. Can also be configured via the Razorpay Dashboard. Possible values:
true
: Enables card saving feature.false
(default): Disables card saving feature.readonly
object
Marks fields as read-only.
contact
optionalboolean
Used to set the contact
field as readonly. Possible values:
- true
: Customer will not be able to edit this field.
- false
(default): Customer will be able to edit this field.email
optionalboolean
Used to set the email
field as readonly. Possible values:
- true
: Customer will not be able to edit this field.
- false
(default): Customer will be able to edit this field.name
optionalboolean
Used to set the name
field as readonly. Possible values:
- true
: Customer will not be able to edit this field.
- false
(default): Customer will be able to edit this field.send_sms_hash
optionalboolean
Used to auto-read OTP for cards and net banking pages. Applicable from Android SDK version 1.5.9 and above. Possible values:
true
: OTP is auto-read.false
(default): OTP is not auto-read.allow_rotation
optionalboolean
Used to rotate payment page as per screen orientation. Applicable from Android SDK version 1.6.4 and above. Possible values:
true
: Payment page can be rotated.false
(default): Payment page cannot be rotated.retry
optionalobject
Parameters that enable retry of payment on the checkout.
enabled
boolean
Determines whether the customers can retry payments on the checkout. Possible values:
true
(default): Enables customers to retry payments.false
: Disables customers from retrying the payment.max_count
integer
The number of times the customer can retry the payment. Recommended to set this to 4. Having a larger number here can cause loops to occur.config
optionalobject
Parameters that enable configuration of checkout display language.
display
object
Child parameter that enables configuration of checkout display language.
language
string
The language in which checkout should be displayed. Possible values:
en
: Englishben
: Bengalihi
: Hindimar
: Marathiguj
: Gujaratitam
: Tamiltel
: TeluguHandy Tips
The open method of Razorpay object (rzp1.open()
) must be invoked by your site's JavaScript, which may or may not be a user-driven action such as a click.
Multiple payment methods are available on Razorpay Standard Checkout.
The way the Payment Success and Failure scenarios are handled depends on the Checkout Sample Code you used in the last step.
If you used the sample code with the handler function:
The customer sees your website page. The checkout returns the response object of the successful payment (razorpay_payment_id
, razorpay_order_id
and razorpay_signature
). Collect these and send them to your server.
The customer is notified about payment failure and asked to retry the payment. Know about the error parameters.
Copy"handler": function (response){
alert(response.razorpay_payment_id);
alert(response.razorpay_order_id);
alert(response.razorpay_signature)}
Copyrzp1.on('payment.failed', function (response){
alert(response.error.code);
alert(response.error.description);
alert(response.error.source);
alert(response.error.step);
alert(response.error.reason);
alert(response.error.metadata.order_id);
alert(response.error.metadata.payment_id);
}
If you used the sample code with the callback URL:
Razorpay makes a POST call to the callback URL with the razorpay_payment_id
, razorpay_order_id
and razorpay_signature
in the response object of the successful payment. Only successful authorisations are auto-submitted.
In case of failed payments, the checkout is displayed again to facilitate payment retry.
Enter go mod tidy
in the command palette and run the command.
This builds the go.mod
file and imports the Razorpay SDK.
A successful payment returns the following fields to the Checkout form.
You need to store these fields in your server.
You can confirm the authenticity of these details by verifying the signature in the next step.
Copy{
"razorpay_payment_id": "pay_29QQoUBi66xm2f",
"razorpay_order_id": "order_9A33XWu170gUtm",
"razorpay_signature": "9ef4dffbfd84f1318f6739a3ce19f9d85851857ae648f114332d8401e0949a3d"
}
razorpay_payment_id
string
Unique identifier for the payment returned by Checkout only for successful payments.razorpay_order_id
string
Unique identifier for the order returned by Checkout.razorpay_signature
string
Signature returned by the Checkout. This is used to verify the payment.This is a mandatory step that allows you to confirm the authenticity of the details returned to the checkout for successful payments.
To verify the razorpay_signature
returned to you by the checkout:
Create a signature in your server using the following attributes:
order_id
- Retrieve the order_id
from your server. Do not use the razorpay_order_id
returned by checkout.razorpay_payment_id
- Returned by checkout.key_secret
- Available in your server.key_secret
that was generated from the Razorpay Dashboard.Use the SHA256 algorithm, the razorpay_payment_id
and the order_id
to construct a HMAC hex digest as shown below:
Copygenerated_signature = hmac_sha256(order_id + "|" + razorpay_payment_id, secret); if (generated_signature == razorpay_signature) { payment is successful }
If the signature you generate on your server matches the razorpay_signature
returned to you by the checkout, the payment received is from an authentic source.
Use the code given below to generate signature on your server:
Copypackage main
import (
"crypto/hmac"
"crypto/sha256"
"crypto/subtle"
"encoding/hex"
"fmt"
)
func main() {
signature := "477d1cdb3f8122a7b0963704b9bcbf294f65a03841a5f1d7a4f3ed8cd1810f9b"
secret := "<YOUR_KEY_SECRET>"
data := "<order_id>|<payment_id>"
// Create a new HMAC by defining the hash type and the key (as byte array)
h := hmac.New(sha256.New, []byte(secret))
// Write Data to it
_, err := h.Write([]byte(data))
if err != nil {
panic(err)
}
// Get result and encode as hexadecimal string
sha := hex.EncodeToString(h.Sum(nil))
fmt.Printf("Result: %s\n", sha)
if subtle.ConstantTimeCompare([]byte(sha), []byte(signature)) == 1 {
fmt.Println("Works")
}
}
You can track the payment status from the Razorpay Dashboard, subscribe to the Webhook event or poll our APIs.
payment_ID
has been generated and note the status. In case of a successful payment, the status is marked as captured
.You can use Razorpay Webhooks to configure and receive notifications when a specific event occurs. When one of these events is triggered, we send an HTTP POST payload in JSON to the webhook's configured URL. Know how to set up Webhooks.
If you have subscribed to the order.paid webhook event, you will receive a notification every time a customer pays you for an order.
Poll Payment APIs to check the payment status.
Step 2: Test Integration
ON THIS PAGE