Persistance

src/auth/AuthContext.ts

+import React from 'react';
+
+interface AuthContextType {
+	user: any;
+	signin: (user: string, callback: VoidFunction) => void;
+	signout: (callback: VoidFunction) => void;
+};
+
+const AuthContext = React.createContext<AuthContextType>(null!);
+
+export { AuthContext };
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