add : Sep gateway for test

src/modules/IPG/gateways/sep.ts

@@ -23,6 +23,7 @@ class SepGateway {
     if (!this.gatewayApiUrl || !this.TERMINAL_ID) {
       throw new InternalError(["SEP gateway is not configured"]);
     }
+    await this.checkOutgoingIp();
     const requesturl = `${this.gatewayApiUrl}/onlinepg/onlinepg`;
 
     console.log("SEP Gateway processPayment called", email, description);
@@ -55,6 +56,16 @@ class SepGateway {
     }
   }
 
+  async checkOutgoingIp() {
+    try {
+      const response = await axios.get("https://api.ipify.org?format=json");
+      console.log("Your Server's Public Outgoing IP is:", response.data.ip);
+      return response.data.ip;
+    } catch (error) {
+      console.error("Could not determine outgoing IP", error);
+    }
+  }
+
   async verifyPayment(authority: string, amount: number) {
     if (!this.gatewayApiUrl || !this.TERMINAL_ID) {
       throw new InternalError(["SEP gateway is not configured"]);