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TypeScript - implementing integrating third-party library types in a React project using hooks

👀 Views: 1987 đŸ’Ŧ Answers: 1 📅 Created: 2025-06-16
typescript react react-toastify

I recently switched to I'm currently working on a React project using TypeScript and I've encountered some type issues while integrating the `react-toastify` library. I installed the library and its types using: ```bash npm install react-toastify @types/react-toastify ``` However, when I try to use the `ToastContainer` and `toast` functions, I'm working with type errors that suggest the types are not compatible. Specifically, I'm getting the behavior: ``` Argument of type 'string' is not assignable to parameter of type 'ToastContent' ``` I've tried to resolve this by checking the types defined in the `@types/react-toastify` package, but it seems that the `ToastContent` type is not properly inferred when I pass a simple string as the argument. Here's a snippet of my code: ```tsx import React from 'react'; import { ToastContainer, toast } from 'react-toastify'; import 'react-toastify/dist/ReactToastify.css'; const App: React.FC = () => { const notify = () => { toast('This is a notification!'); // behavior occurs here }; return ( <div> <button onClick={notify}>Notify!</button> <ToastContainer /> </div> ); }; export default App; ``` I've also tried updating my TypeScript version to 4.5 to see if that resolves the scenario, but it didn't help. Additionally, I've explored the option of creating a custom type for the `ToastContent`, but I'm unsure how to define it correctly to accommodate my use case. Has anyone faced similar issues with `react-toastify` in TypeScript, and how might I resolve this type incompatibility? For reference, this is a production REST API. Thanks for your help in advance!