Files
blog/auth/src/contexts.tsx

98 lines
2.4 KiB
TypeScript

import React, { createContext, useContext, useEffect, useState } from "react";
import { tokenStore } from "./token";
import { createApiClient } from "./axios";
import { AuthUser } from "./models";
interface AuthContextModel {
currentUser: AuthUser | null;
token: string | null;
loading: boolean;
error: string | null;
login(username: string, password: string): Promise<void>;
register(username: string, password: string): Promise<void>;
logout(): void;
}
const AuthContext = createContext<AuthContextModel | undefined>(undefined);
export function AuthProvider({
children,
authBaseUrl,
}: {
children: React.ReactNode;
authBaseUrl: string;
}) {
const [currentUser, setCurrentUser] = useState<AuthUser | null>(null);
const [token, setToken] = useState<string | null>(tokenStore.get());
const [loading, setLoading] = useState(false);
const [error, setError] = useState<string | null>(null);
const auth = createApiClient(authBaseUrl);
const login = async (username: string, password: string) => {
try {
setLoading(true);
setError(null);
const res = await auth.post("/login", { username, password });
const { access_token, user } = res.data;
tokenStore.set(access_token);
setToken(access_token);
setCurrentUser(user);
} catch (e: any) {
setError(e.response?.data?.detail ?? "Login failed");
} finally {
setLoading(false);
}
};
const register = async (username: string, password: string) => {
try {
setLoading(true);
setError(null);
await auth.post("/register", { username, password });
await login(username, password);
} catch (e: any) {
setError(e.response?.data?.detail ?? "Registration failed");
} finally {
setLoading(false);
}
};
const logout = () => {
tokenStore.clear();
setToken(null);
setCurrentUser(null);
};
const fetchCurrentUser = async () => {
if (!token) return;
try {
const me = await auth.get("/me");
setCurrentUser({ ...me.data });
} catch {
logout();
}
};
useEffect(() => {
fetchCurrentUser();
}, [token]);
return (
<AuthContext.Provider
value={{ currentUser, token, loading, error, login, logout, register }}
>
{children}
</AuthContext.Provider>
);
}
export function useAuth(): AuthContextModel {
const ctx = useContext(AuthContext);
if (!ctx) throw new Error("useAuth must be used inside AuthProvider");
return ctx;
}