feat(router): adding generic tokenization endpoint (#7905)

Co-authored-by: hyperswitch-bot[bot] <148525504+hyperswitch-bot[bot]@users.noreply.github.com>

crates/openapi/src/openapi_v2.rs

@@ -157,6 +157,9 @@ Never share your secret api keys. Keep them guarded and secure.
 
         // Routes for proxy
         routes::proxy::proxy_core,
+
+        // Route for tokenization
+        routes::tokenization::create_token_vault_api,
     ),
     components(schemas(
         common_utils::types::MinorUnit,
@@ -736,6 +739,8 @@ Never share your secret api keys. Keep them guarded and secure.
         api_models::proxy::ProxyResponse,
         api_models::proxy::TokenType,
         routes::payments::ForceSync,
+        api_models::tokenization::GenericTokenizationRequest,
+        api_models::tokenization::GenericTokenizationResponse,
     )),
     modifiers(&SecurityAddon)
 )]

crates/openapi/src/routes.rs

@@ -20,4 +20,5 @@ pub mod refunds;
 pub mod relay;
 pub mod revenue_recovery;
 pub mod routing;
+pub mod tokenization;
 pub mod webhook_events;

crates/openapi/src/routes/tokenization.rs

@@ -0,0 +1,33 @@
+use serde_json::json;
+use utoipa::OpenApi;
+
+#[cfg(feature = "v2")]
+#[utoipa::path(
+    post,
+    path = "/v2/tokenize",
+    request_body(
+        content = GenericTokenizationRequest,
+        examples(("Create a token with customer_id" = (
+            value = json!({
+                "customer_id": "12345_cus_0196d94b9c207333a297cbcf31f2e8c8",
+                "token_request": {
+                    "payment_method_data": {
+                        "card": {
+                            "card_holder_name": "test name"
+                        }
+                    }
+                }
+            })
+        )))
+    ),
+    responses(
+        (status = 200, description = "Token created successfully", body = GenericTokenizationResponse),
+        (status = 400, description = "Invalid request"),
+        (status = 401, description = "Unauthorized"),
+        (status = 500, description = "Internal server error")
+    ),
+    tag = "Tokenization",
+    operation_id = "create_token_vault_api",
+    security(("ephemeral_key" = []),("api_key" = []))
+)]
+pub async fn create_token_vault_api() {}