Add verification and value stripping

templates/ts_base.ts

@@ -0,0 +1,43 @@
+export class VerificationError extends Error {
+   constructor(
+      public readonly type?: string,
+      public readonly field?: string,
+      public readonly value?: any
+   ) {
+      super("Parameter verification failed!");
+   }
+}
+
+export function verify_number(data: any) {
+   if (typeof data !== "number") throw new VerificationError("number", undefined, data);
+   return data;
+}
+
+export function strip_number(data: any) {
+   return data;
+}
+
+export function verify_string(data: any) {
+   if (typeof data !== "string") throw new VerificationError("string", undefined, data);
+   return data;
+}
+
+export function strip_string(data: any) {
+   return data;
+}
+
+export function verify_boolean(data: any) {
+   if (typeof data !== "boolean") throw new VerificationError("boolean", undefined, data);
+   return data;
+}
+
+export function strip_boolean(data: any) {
+   return data;
+}
+
+//TODO: Should it return data? it is kinda undefined actually...
+export function verify_void(data: any) {}
+
+export function strip_void(data: any) {
+   return undefined;
+}

templates/ts_service_base.ts

@@ -28,25 +28,3 @@ export interface ResponseObject {
    error?: { code: ErrorCodes; message: string; data?: any };
    id: string;
 }
-
-export function verify_number(data: any) {
-   if (typeof data !== "number") return false;
-
-   return true;
-}
-
-export function verify_string(data: any) {
-   if (typeof data !== "string") return false;
-
-   return true;
-}
-
-export function verify_boolean(data: any) {
-   if (typeof data !== "boolean") return false;
-
-   return true;
-}
-
-export function verify_void(data: any) {
-   return true;
-}

templates/ts_service_client.ts

@@ -1,4 +1,6 @@
 //@template-ignore
+import { VerificationError } from "./ts_base";
+//@template-ignore
 import { RequestObject, ResponseObject, ErrorCodes, Logging } from "./ts_service_base";
 
 
@@ -48,7 +50,11 @@ export class ServiceProvider {
          let resListener = this.requests.get(msg.id);
          if(!resListener) return; // Ignore wrong responses
          if(msg.error) {
-            resListener.err(new Error(msg.error.message));
+            if(msg.error.data && msg.error.data.$ == "verification_error") {
+               resListener.err(new VerificationError(msg.error.data.type, msg.error.data.field, msg.error.data.value))
+            } else {
+               resListener.err(new Error(msg.error.message));
+            }
          } else {
             resListener.ok(msg.result);
          }

templates/ts_service_server.ts

@@ -1,4 +1,6 @@
 //@template-ignore
+import { VerificationError } from "./ts_base";
+//@template-ignore
 import { RequestObject, ResponseObject, ErrorCodes, Logging } from "./ts_service_base";
 
 
@@ -109,6 +111,14 @@ class Session<T> {
                   error: {
                      code: ErrorCodes.InternalError,
                      message: err.message,
+                     data: err instanceof VerificationError ? {
+                        $: "verification_error",
+                        type: err.type,
+                        field: err.field,
+                        value: err.value
+                     } : {
+                        $: "unknown_error"
+                     },
                   },
                } as ResponseObject,
                err