diff --git a/README.md b/README.md
index 9eeb44b3..cf1b68ae 100644
--- a/README.md
+++ b/README.md
@@ -50,8 +50,13 @@ const body = {
 	},
 };
 
-// Step 5: Make the request
-payment.create({ body }).then(console.log).catch(console.log);
+// Step 5: Create request options object - Optional
+const requestOptions = {
+	idempotencyKey: '<IDEMPOTENCY_KEY>',
+};
+
+// Step 6: Make the request
+payment.create({ body, requestOptions }).then(console.log).catch(console.log);
 ```
 
 ### Step 1: Import the parts of the module you want to use
diff --git a/src/examples/payment/cancel.ts b/src/examples/payment/cancel.ts
index 592dde4e..ac1b6594 100644
--- a/src/examples/payment/cancel.ts
+++ b/src/examples/payment/cancel.ts
@@ -13,5 +13,8 @@ const payment = new Payment(client);
 
 payment.cancel({
 	id: '<PAYMENT_ID>',
+	requestOptions: {
+		idempotencyKey: '<IDEMPOTENCY_KEY>'
+	},
 }).then(console.log).catch(console.log);
 
diff --git a/src/examples/payment/capture.ts b/src/examples/payment/capture.ts
index 106b4b8c..e4f24c63 100644
--- a/src/examples/payment/capture.ts
+++ b/src/examples/payment/capture.ts
@@ -14,5 +14,8 @@ const payment = new Payment(client);
 payment.capture({
 	id: '<PAYMENT_ID>',
 	transaction_amount: 12.34,
+	requestOptions: {
+		idempotencyKey: '<IDEMPOTENCY_KEY>'
+	},
 }).then(console.log).catch(console.log);
 
diff --git a/src/examples/payment/create.ts b/src/examples/payment/create.ts
index 33beaf65..5aed47ef 100644
--- a/src/examples/payment/create.ts
+++ b/src/examples/payment/create.ts
@@ -18,5 +18,8 @@ payment.create({ body: {
 	payer: {
 		email: '<EMAIL>'
 	},
+},
+requestOptions: {
+	idempotencyKey: '<IDEMPOTENCY_KEY>'
 } }).then(console.log).catch(console.log);