diff --git a/packages/medusa-js/src/request.ts b/packages/medusa-js/src/request.ts
index 5b33d860fc..0534e53b0e 100644
--- a/packages/medusa-js/src/request.ts
+++ b/packages/medusa-js/src/request.ts
@@ -187,6 +187,10 @@ class Client {
     options: RequestOptions = {},
     customHeaders: Record<string, any> = {}
   ): Promise<any> {
+    if (method === "POST" && !payload) {
+      payload = {}
+    }
+
     const reqOpts = {
       method,
       withCredentials: true,
diff --git a/packages/medusa-js/src/resources/carts.ts b/packages/medusa-js/src/resources/carts.ts
index 8f6a26fd04..da0b0b0f61 100644
--- a/packages/medusa-js/src/resources/carts.ts
+++ b/packages/medusa-js/src/resources/carts.ts
@@ -24,7 +24,8 @@ class CartsResource extends BaseResource {
   addShippingMethod(
     cart_id: string,
     payload: StorePostCartsCartShippingMethodReq,
-    customHeaders: Record<string, any> = {}): ResponsePromise<StoreCartsRes> {
+    customHeaders: Record<string, any> = {}
+  ): ResponsePromise<StoreCartsRes> {
     const path = `/store/carts/${cart_id}/shipping-methods`
     return this.client.request("POST", path, payload, {}, customHeaders)
   }
@@ -39,7 +40,10 @@ class CartsResource extends BaseResource {
    * @param customHeaders
    * @return {ResponsePromise<StoreCompleteCartRes>}
    */
-  complete(cart_id: string, customHeaders: Record<string, any> = {}): ResponsePromise<StoreCompleteCartRes> {
+  complete(
+    cart_id: string,
+    customHeaders: Record<string, any> = {}
+  ): ResponsePromise<StoreCompleteCartRes> {
     const path = `/store/carts/${cart_id}/complete`
     return this.client.request("POST", path, {}, {}, customHeaders)
   }
@@ -51,7 +55,10 @@ class CartsResource extends BaseResource {
    * @param customHeaders
    * @return {ResponsePromise<StoreCartsRes>}
    */
-  create(payload?: StorePostCartReq, customHeaders: Record<string, any> = {}): ResponsePromise<StoreCartsRes> {
+  create(
+    payload?: StorePostCartReq,
+    customHeaders: Record<string, any> = {}
+  ): ResponsePromise<StoreCartsRes> {
     const path = `/store/carts`
     return this.client.request("POST", path, payload, {}, customHeaders)
   }
@@ -64,7 +71,10 @@ class CartsResource extends BaseResource {
    * @param customHeaders
    * @return {ResponsePromise<StoreCartsRes>}
    */
-  createPaymentSessions(cart_id: string, customHeaders: Record<string, any> = {}): ResponsePromise<StoreCartsRes> {
+  createPaymentSessions(
+    cart_id: string,
+    customHeaders: Record<string, any> = {}
+  ): ResponsePromise<StoreCartsRes> {
     const path = `/store/carts/${cart_id}/payment-sessions`
     return this.client.request("POST", path, {}, {}, customHeaders)
   }
@@ -79,7 +89,8 @@ class CartsResource extends BaseResource {
   deleteDiscount(
     cart_id: string,
     code: string,
-    customHeaders: Record<string, any> = {}): ResponsePromise<StoreCartsRes> {
+    customHeaders: Record<string, any> = {}
+  ): ResponsePromise<StoreCartsRes> {
     const path = `/store/carts/${cart_id}/discounts/${code}`
     return this.client.request("DELETE", path, {}, {}, customHeaders)
   }
@@ -95,7 +106,8 @@ class CartsResource extends BaseResource {
   deletePaymentSession(
     cart_id: string,
     provider_id: string,
-    customHeaders: Record<string, any> = {}): ResponsePromise<StoreCartsRes> {
+    customHeaders: Record<string, any> = {}
+  ): ResponsePromise<StoreCartsRes> {
     const path = `/store/carts/${cart_id}/payment-sessions/${provider_id}`
     return this.client.request("DELETE", path, {}, {}, customHeaders)
   }
@@ -110,7 +122,8 @@ class CartsResource extends BaseResource {
   refreshPaymentSession(
     cart_id: string,
     provider_id: string,
-    customHeaders: Record<string, any> = {}): ResponsePromise<StoreCartsRes> {
+    customHeaders: Record<string, any> = {}
+  ): ResponsePromise<StoreCartsRes> {
     const path = `/store/carts/${cart_id}/payment-sessions/${provider_id}/refresh`
     return this.client.request("POST", path, {}, {}, customHeaders)
   }
@@ -121,7 +134,10 @@ class CartsResource extends BaseResource {
    * @param customHeaders
    * @return {ResponsePromise<StoreCartsRes>}
    */
-  retrieve(cart_id: string, customHeaders: Record<string, any> = {}): ResponsePromise<StoreCartsRes> {
+  retrieve(
+    cart_id: string,
+    customHeaders: Record<string, any> = {}
+  ): ResponsePromise<StoreCartsRes> {
     const path = `/store/carts/${cart_id}`
     return this.client.request("GET", path, {}, {}, customHeaders)
   }
@@ -136,7 +152,8 @@ class CartsResource extends BaseResource {
   setPaymentSession(
     cart_id: string,
     payload: StorePostCartsCartPaymentSessionReq,
-    customHeaders: Record<string, any> = {}): ResponsePromise<StoreCartsRes> {
+    customHeaders: Record<string, any> = {}
+  ): ResponsePromise<StoreCartsRes> {
     const path = `/store/carts/${cart_id}/payment-session`
     return this.client.request("POST", path, payload, {}, customHeaders)
   }
@@ -151,7 +168,8 @@ class CartsResource extends BaseResource {
   update(
     cart_id: string,
     payload: StorePostCartsCartReq,
-    customHeaders: Record<string, any> = {}): ResponsePromise<StoreCartsRes> {
+    customHeaders: Record<string, any> = {}
+  ): ResponsePromise<StoreCartsRes> {
     const path = `/store/carts/${cart_id}`
     return this.client.request("POST", path, payload, {}, customHeaders)
   }
@@ -168,7 +186,8 @@ class CartsResource extends BaseResource {
     cart_id: string,
     provider_id: string,
     payload: StorePostCartsCartPaymentSessionUpdateReq,
-    customHeaders: Record<string, any> = {}): ResponsePromise<StoreCartsRes> {
+    customHeaders: Record<string, any> = {}
+  ): ResponsePromise<StoreCartsRes> {
     const path = `/store/carts/${cart_id}/payment-sessions/${provider_id}`
     return this.client.request("POST", path, payload, {}, customHeaders)
   }