diff --git a/src/errors/validation.ts b/src/errors/validation.ts
index 5304da8..3283524 100644
--- a/src/errors/validation.ts
+++ b/src/errors/validation.ts
@@ -1,7 +1,6 @@
 export interface IFastifyValidationError {
   statusCode?: number;
   code?: string;
-  validation?: any;
 }
 
 export function getFastifyError(error: Error) {
diff --git a/src/routes/raw-html.ts b/src/routes/raw-html.ts
index 4665fe2..32ccfe5 100644
--- a/src/routes/raw-html.ts
+++ b/src/routes/raw-html.ts
@@ -1,7 +1,6 @@
 import { FastifyInstance } from "fastify";
 
 import { IParseSchema, rawHtmlSchema } from "../types/requests/api";
-import { GetRequest } from "../types/requests/browser";
 
 import handlePage from "../handlers/main";
 import { generateRequestUrl } from "../utils/generate";
@@ -10,7 +9,7 @@ export default async function rawHtml(fastify: FastifyInstance) {
   fastify.get<IParseSchema>(
     "/api/raw-html",
     { schema: rawHtmlSchema },
-    async (request: GetRequest) => {
+    async (request) => {
       return (
         await handlePage(
           request.query.url,
diff --git a/src/types/requests/api.ts b/src/types/requests/api.ts
index 9e13803..0472505 100644
--- a/src/types/requests/api.ts
+++ b/src/types/requests/api.ts
@@ -2,21 +2,13 @@ import { FastifySchema, FastifyRequest } from "fastify";
 import { IApiError, errorResponseSchema } from "../../errors/api";
 import { handlerSchema } from "../../handlers/handler.interface";
 import { engineList } from "../../handlers/main";
+import { FromSchema } from "json-schema-to-ts";
 
 export interface IApiResponse<T> {
   data?: T;
   error?: IApiError;
 }
 
-export interface IParseQuery {
-  url: string;
-  engine?: string;
-}
-
-export interface IParseSchema {
-  Querystring: IParseQuery;
-}
-
 export const parseQuerySchema = {
   type: "object",
   required: ["url"],
@@ -30,7 +22,7 @@ export const parseQuerySchema = {
       enum: [...engineList, ""],
     },
   },
-};
+} as const;
 
 export const parseSchema: FastifySchema = {
   description: "Parse the page and get all data from the engine",
@@ -52,6 +44,10 @@ export const parseSchema: FastifySchema = {
   produces: ["text/json"],
 };
 
+export interface IParseSchema {
+  Querystring: FromSchema<typeof parseQuerySchema>;
+}
+
 export const rawHtmlSchema: FastifySchema = {
   description: "Parse the page and get raw HTML from the engine",
   querystring: parseQuerySchema,
diff --git a/src/types/requests/browser.ts b/src/types/requests/browser.ts
index df526d9..e9891ed 100644
--- a/src/types/requests/browser.ts
+++ b/src/types/requests/browser.ts
@@ -1,18 +1,9 @@
-import { FastifyRequest, FastifySchema } from "fastify";
+import { FastifySchema } from "fastify";
 import { engineList } from "../../handlers/main";
-
-export type GetRequest = FastifyRequest<{
-  Querystring: IGetQuery;
-}>;
-
-export interface IGetQuery {
-  url: string;
-  format?: string;
-  engine?: string;
-}
+import { FromSchema } from "json-schema-to-ts";
 
 export interface IGetSchema {
-  Querystring: IGetQuery;
+  Querystring: IGetQuerySchema;
 }
 
 export const indexSchema = {
@@ -38,7 +29,8 @@ export const getQuerySchema = {
       enum: [...engineList, ""],
     },
   },
-};
+} as const;
+export type IGetQuerySchema = FromSchema<typeof getQuerySchema>;
 
 export const GetSchema: FastifySchema = {
   description: "Get page",