diff --git a/package-lock.json b/package-lock.json
index c71c4e0..64d6bfd 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "react-rest-request",
-  "version": "0.4.1",
+  "version": "0.5.1",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -5083,7 +5083,8 @@
     "js-tokens": {
       "version": "3.0.2",
       "resolved": "https://registry.npmjs.org/js-tokens/-/js-tokens-3.0.2.tgz",
-      "integrity": "sha1-mGbfOVECEw449/mWvOtlRDIJwls="
+      "integrity": "sha1-mGbfOVECEw449/mWvOtlRDIJwls=",
+      "dev": true
     },
     "js-yaml": {
       "version": "3.13.1",
@@ -5340,14 +5341,6 @@
       "integrity": "sha1-7dFMgk4sycHgsKG0K7UhBRakJDg=",
       "dev": true
     },
-    "loose-envify": {
-      "version": "1.3.1",
-      "resolved": "https://registry.npmjs.org/loose-envify/-/loose-envify-1.3.1.tgz",
-      "integrity": "sha1-0aitM/qc4OcT1l/dCsi3SNR4yEg=",
-      "requires": {
-        "js-tokens": "^3.0.0"
-      }
-    },
     "make-dir": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/make-dir/-/make-dir-3.1.0.tgz",
@@ -5624,7 +5617,8 @@
     "object-assign": {
       "version": "4.1.1",
       "resolved": "https://registry.npmjs.org/object-assign/-/object-assign-4.1.1.tgz",
-      "integrity": "sha1-IQmtx5ZYh8/AXLvUQsrIv7s2CGM="
+      "integrity": "sha1-IQmtx5ZYh8/AXLvUQsrIv7s2CGM=",
+      "dev": true
     },
     "object-copy": {
       "version": "0.1.0",
@@ -6256,15 +6250,6 @@
       "integrity": "sha512-N5ZAX4/LxJmF+7wN74pUD6qAh9/wnvdQcjq9TZjevvXzSUo7bfmw91saqMjzGS2xq91/odN2dW/WOl7qQHNDGA==",
       "dev": true
     },
-    "react": {
-      "version": "17.0.1",
-      "resolved": "https://registry.npmjs.org/react/-/react-17.0.1.tgz",
-      "integrity": "sha512-lG9c9UuMHdcAexXtigOZLX8exLWkW0Ku29qPRU8uhF2R9BN96dLCt0psvzPLlHc5OWkgymP3qwTRgbnw5BKx3w==",
-      "requires": {
-        "loose-envify": "^1.1.0",
-        "object-assign": "^4.1.1"
-      }
-    },
     "react-is": {
       "version": "17.0.1",
       "resolved": "https://registry.npmjs.org/react-is/-/react-is-17.0.1.tgz",
diff --git a/package.json b/package.json
index ff0b84d..b1d0cd7 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "react-rest-request",
-  "version": "0.4.1",
+  "version": "0.5.3",
   "description": "Minimalistic REST API client for React inspired by Apollo",
   "readme": "README.md",
   "main": "./target/index.js",
diff --git a/src/endpoint.ts b/src/endpoint.ts
index 70568b0..520cf9f 100644
--- a/src/endpoint.ts
+++ b/src/endpoint.ts
@@ -8,13 +8,16 @@ export enum Method {
     DELETE = 'DELETE',
 }
 
-export type Endpoint<R, _V, P = never> = Readonly<{
+export type Endpoint<R, V, P = unknown> = Readonly<{
+    _?: V; // Temporary hack to extract the type of variables. Do not use it in real endpoints.
     method: Method;
     url: string | ((params: P) => string);
     headers?: Record<string, string>;
     transformResponseData?: (data: any) => R;
 }>
 
+export type AnyEndpoint = Endpoint<any, any, any>
+
 export type ExtractEndpointResponse<E> = E extends Endpoint<infer R, any, any> ? R : E extends Endpoint<infer R, any> ? R : never;
 export type ExtractEndpointVariables<E> = E extends Endpoint<any, infer V, any> ? V : E extends Endpoint<any, infer V> ? V : never;
 export type ExtractEndpointParams<E> = E extends Endpoint<any, any, infer P> ? P : never;
diff --git a/src/lazy-request-hook.ts b/src/lazy-request-hook.ts
index c9c807d..53e7cb4 100644
--- a/src/lazy-request-hook.ts
+++ b/src/lazy-request-hook.ts
@@ -2,13 +2,13 @@ import React from 'react';
 import invariant from 'tiny-invariant';
 import isEqual from 'lodash.isequal';
 import { useClient } from './client-hook';
-import { Endpoint, ExtractEndpointParams, ExtractEndpointResponse, ExtractEndpointVariables } from './endpoint';
-import { PublicRequestState, RequestAction, requestReducer, RequestState } from './reducer';
+import { AnyEndpoint, ExtractEndpointParams, ExtractEndpointResponse, ExtractEndpointVariables } from './endpoint';
+import { PublicRequestState, RequestReducer, requestReducer } from './reducer';
 import { useRequestContext } from './request-context';
 import { ClientResponse } from './client';
 import { isFunction } from './misc';
 
-export type LazyRequestConfig<R, V, P = never> = Readonly<{
+export type LazyRequestConfig<R, V, P> = Readonly<{
     variables?: V;
     params?: P;
     headers?: Record<string, string>;
@@ -16,29 +16,33 @@ export type LazyRequestConfig<R, V, P = never> = Readonly<{
     onFailure?: (res: ClientResponse<R>) => unknown;
 }>
 
-export type LazyRequestHandlerConfig<R, V, P> = Readonly<
-    LazyRequestConfig<R, V, P>
+export type LazyRequestConfigFromEndpoint<E extends AnyEndpoint> = LazyRequestConfig<
+    ExtractEndpointResponse<E>,
+    ExtractEndpointVariables<E>,
+    ExtractEndpointParams<E>
+>;
+
+export type LazyRequestHandlerConfig<E extends AnyEndpoint> = Readonly<
+    LazyRequestConfigFromEndpoint<E>
     & { force?: boolean }
 >
 
-export type RequestHandler<R, V, P> = (config?: LazyRequestHandlerConfig<R, V, P>) => Promise<R | null>;
+export type RequestHandler<E extends AnyEndpoint> =
+    (config?: LazyRequestHandlerConfig<E>) => Promise<ExtractEndpointResponse<E> | null>;
 
 export type RefetchRequestHandler = () => void;
 
-export type PublicRequestStateWithRefetch<R> = PublicRequestState<R> & { refetch: RefetchRequestHandler };
+export type PublicRequestStateWithRefetch<E extends AnyEndpoint> =
+    PublicRequestState<ExtractEndpointResponse<E>>
+    & { refetch: RefetchRequestHandler };
 
-export function useLazyRequest<
-    E extends Endpoint<R, V, P>,
-    R = ExtractEndpointResponse<E>,
-    V = ExtractEndpointVariables<E>,
-    P = ExtractEndpointParams<E>
->(
+export function useLazyRequest<E extends AnyEndpoint>(
     endpoint: E,
-    config?: LazyRequestConfig<R, V, P>,
-): [RequestHandler<R, V, P>, PublicRequestStateWithRefetch<R>] {
+    config?: LazyRequestConfigFromEndpoint<E>,
+): [RequestHandler<E>, PublicRequestStateWithRefetch<E>] {
     const [client] = useClient();
     const { defaultHeaders } = useRequestContext();
-    const [state, dispatch] = React.useReducer<React.Reducer<RequestState<R>, RequestAction<R>>>(
+    const [state, dispatch] = React.useReducer<RequestReducer<ExtractEndpointResponse<E>>>(
         requestReducer,
         {
             data: null,
@@ -46,24 +50,24 @@ export function useLazyRequest<
             isCalled: false,
         }
     );
-    const [prevHandlerConfig, setPrevHandlerConfig] = React.useState<LazyRequestHandlerConfig<R, V, P> | null>(null);
+    const [prevHandlerConfig, setPrevHandlerConfig] = React.useState<LazyRequestHandlerConfig<E> | null>(null);
 
     const transformResponseData = React.useCallback(
-        (data: unknown): R => {
+        (data: unknown): ExtractEndpointResponse<E> => {
             return isFunction(endpoint.transformResponseData) ?
                 endpoint.transformResponseData(data)
-                : data as R;
+                : data as ExtractEndpointResponse<E>;
         },
         [endpoint]
     );
 
     const handler = React.useCallback(
-        (handlerConfig?: LazyRequestHandlerConfig<R, V, P>) => {
+        (handlerConfig?: LazyRequestHandlerConfig<E>) => {
             if (state?.loading) {
                 return Promise.resolve(null);
             }
 
-            let params: P | undefined;
+            let params: ExtractEndpointParams<E> | undefined;
             let endpointUrl: string;
             let isSameRequest = true;
             if (isFunction(endpoint.url)) {
@@ -106,7 +110,7 @@ export function useLazyRequest<
             setPrevHandlerConfig(handlerConfig ?? {});
 
             return client
-                .request<R>({
+                .request<ExtractEndpointResponse<E>>({
                     ...endpoint,
                     url: endpointUrl,
                     headers,
diff --git a/src/reducer.ts b/src/reducer.ts
index 5607fcf..409ef63 100644
--- a/src/reducer.ts
+++ b/src/reducer.ts
@@ -28,6 +28,8 @@ export type RequestAction<R> =
         response: ClientResponse<R>
     }
 
+export type RequestReducer<R> = React.Reducer<RequestState<R>, RequestAction<R>>
+
 export function requestReducer<R>(state: RequestState<R>, action: RequestAction<R>) {
     switch (action.type) {
         case 'call': {
diff --git a/src/request-hook.ts b/src/request-hook.ts
index 376e529..a66ed8a 100644
--- a/src/request-hook.ts
+++ b/src/request-hook.ts
@@ -1,23 +1,18 @@
 import React from 'react';
 import invariant from 'tiny-invariant';
-import { Endpoint, ExtractEndpointParams, ExtractEndpointResponse, ExtractEndpointVariables, Method } from './endpoint';
-import { LazyRequestConfig, useLazyRequest } from './lazy-request-hook';
+import { AnyEndpoint, Method } from './endpoint';
+import { LazyRequestConfigFromEndpoint, useLazyRequest } from './lazy-request-hook';
 
-export type RequestConfig<R, V, P> = Readonly<
-    LazyRequestConfig<R, V, P>
+export type RequestConfigFromEndpoint<E extends AnyEndpoint> = Readonly<
+    LazyRequestConfigFromEndpoint<E>
     & {
         skip?: boolean,
     }
 >
 
-export function useRequest<
-    E extends Endpoint<R, V, P>,
-    R = ExtractEndpointResponse<E>,
-    V = ExtractEndpointVariables<E>,
-    P = ExtractEndpointParams<E>
->(
+export function useRequest<E extends AnyEndpoint>(
     endpoint: E,
-    config?: RequestConfig<R, V, P>,
+    config?: RequestConfigFromEndpoint<E>,
 ) {
     invariant(
         endpoint.method !== Method.DELETE,
diff --git a/target/endpoint.d.ts b/target/endpoint.d.ts
index 3fb8732..54e2b09 100644
--- a/target/endpoint.d.ts
+++ b/target/endpoint.d.ts
@@ -6,12 +6,14 @@ export declare enum Method {
     PATCH = "PATCH",
     DELETE = "DELETE"
 }
-export declare type Endpoint<R, _V, P = never> = Readonly<{
+export declare type Endpoint<R, V, P = unknown> = Readonly<{
+    _?: V;
     method: Method;
     url: string | ((params: P) => string);
     headers?: Record<string, string>;
     transformResponseData?: (data: any) => R;
 }>;
+export declare type AnyEndpoint = Endpoint<any, any, any>;
 export declare type ExtractEndpointResponse<E> = E extends Endpoint<infer R, any, any> ? R : E extends Endpoint<infer R, any> ? R : never;
 export declare type ExtractEndpointVariables<E> = E extends Endpoint<any, infer V, any> ? V : E extends Endpoint<any, infer V> ? V : never;
 export declare type ExtractEndpointParams<E> = E extends Endpoint<any, any, infer P> ? P : never;
diff --git a/target/lazy-request-hook.d.ts b/target/lazy-request-hook.d.ts
index 34e8248..85eb71d 100644
--- a/target/lazy-request-hook.d.ts
+++ b/target/lazy-request-hook.d.ts
@@ -1,19 +1,20 @@
-import { Endpoint, ExtractEndpointParams, ExtractEndpointResponse, ExtractEndpointVariables } from './endpoint';
+import { AnyEndpoint, ExtractEndpointParams, ExtractEndpointResponse, ExtractEndpointVariables } from './endpoint';
 import { PublicRequestState } from './reducer';
 import { ClientResponse } from './client';
-export declare type LazyRequestConfig<R, V, P = never> = Readonly<{
+export declare type LazyRequestConfig<R, V, P> = Readonly<{
     variables?: V;
     params?: P;
     headers?: Record<string, string>;
     onComplete?: (data: R) => unknown;
     onFailure?: (res: ClientResponse<R>) => unknown;
 }>;
-export declare type LazyRequestHandlerConfig<R, V, P> = Readonly<LazyRequestConfig<R, V, P> & {
+export declare type LazyRequestConfigFromEndpoint<E extends AnyEndpoint> = LazyRequestConfig<ExtractEndpointResponse<E>, ExtractEndpointVariables<E>, ExtractEndpointParams<E>>;
+export declare type LazyRequestHandlerConfig<E extends AnyEndpoint> = Readonly<LazyRequestConfigFromEndpoint<E> & {
     force?: boolean;
 }>;
-export declare type RequestHandler<R, V, P> = (config?: LazyRequestHandlerConfig<R, V, P>) => Promise<R | null>;
+export declare type RequestHandler<E extends AnyEndpoint> = (config?: LazyRequestHandlerConfig<E>) => Promise<ExtractEndpointResponse<E> | null>;
 export declare type RefetchRequestHandler = () => void;
-export declare type PublicRequestStateWithRefetch<R> = PublicRequestState<R> & {
+export declare type PublicRequestStateWithRefetch<E extends AnyEndpoint> = PublicRequestState<ExtractEndpointResponse<E>> & {
     refetch: RefetchRequestHandler;
 };
-export declare function useLazyRequest<E extends Endpoint<R, V, P>, R = ExtractEndpointResponse<E>, V = ExtractEndpointVariables<E>, P = ExtractEndpointParams<E>>(endpoint: E, config?: LazyRequestConfig<R, V, P>): [RequestHandler<R, V, P>, PublicRequestStateWithRefetch<R>];
+export declare function useLazyRequest<E extends AnyEndpoint>(endpoint: E, config?: LazyRequestConfigFromEndpoint<E>): [RequestHandler<E>, PublicRequestStateWithRefetch<E>];
diff --git a/target/reducer.d.ts b/target/reducer.d.ts
index 0b0892f..bf94a2c 100644
--- a/target/reducer.d.ts
+++ b/target/reducer.d.ts
@@ -1,3 +1,4 @@
+/// <reference types="react" />
 import { ClientResponse } from './client';
 export declare type PublicRequestState<R> = Readonly<{
     data: R | null;
@@ -21,6 +22,7 @@ export declare type RequestAction<R> = {
     type: 'failure';
     response: ClientResponse<R>;
 };
+export declare type RequestReducer<R> = React.Reducer<RequestState<R>, RequestAction<R>>;
 export declare function requestReducer<R>(state: RequestState<R>, action: RequestAction<R>): {
     loading: boolean;
     isCalled: boolean;
diff --git a/target/request-hook.d.ts b/target/request-hook.d.ts
index 0644b01..23106ca 100644
--- a/target/request-hook.d.ts
+++ b/target/request-hook.d.ts
@@ -1,6 +1,6 @@
-import { Endpoint, ExtractEndpointParams, ExtractEndpointResponse, ExtractEndpointVariables } from './endpoint';
-import { LazyRequestConfig } from './lazy-request-hook';
-export declare type RequestConfig<R, V, P> = Readonly<LazyRequestConfig<R, V, P> & {
+import { AnyEndpoint } from './endpoint';
+import { LazyRequestConfigFromEndpoint } from './lazy-request-hook';
+export declare type RequestConfigFromEndpoint<E extends AnyEndpoint> = Readonly<LazyRequestConfigFromEndpoint<E> & {
     skip?: boolean;
 }>;
-export declare function useRequest<E extends Endpoint<R, V, P>, R = ExtractEndpointResponse<E>, V = ExtractEndpointVariables<E>, P = ExtractEndpointParams<E>>(endpoint: E, config?: RequestConfig<R, V, P>): import("./lazy-request-hook").PublicRequestStateWithRefetch<R>;
+export declare function useRequest<E extends AnyEndpoint>(endpoint: E, config?: RequestConfigFromEndpoint<E>): import("./lazy-request-hook").PublicRequestStateWithRefetch<E>;