How to Pass GraphQL Variables to a Material UI Autocomplete Component in React

Learn how to seamlessly integrate GraphQL variables into Material UI's Autocomplete component using React and TypeScript in this step-by-step guide.
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How to Pass GraphQL Variables to a Material UI Autocomplete Component in React

When building applications with React, TypeScript, and GraphQL, you might encounter challenges when trying to pass variables to components. One common problem is integrating GraphQL queries into Material UI components, such as the Autocomplete component. In this guide, we’re going to address this issue by demonstrating how to pass a numeric value from a TextField component to an Autocomplete component using GraphQL queries.

The Problem: Integrating GraphQL with Material UI Autocomplete

Imagine you are using React to create an Autocomplete Material UI component for fetching query suggestions as the user types. Your setup includes a GraphQL query that fetches todo items based on a numerical ID inputted by the user. However, you encounter issues when trying to implement this functionality, such as:

Not knowing where to source the Autocomplete options.

Difficulty in ensuring the TextField updates accordingly.

Let’s break down how to effectively pass the GraphQL variable into the Autocomplete component.

Solution Overview

To solve the problem, we will follow these steps:

Set up state management for the ID input from the TextField.

Make the GraphQL query using the useQuery hook.

Pass the query results directly into the Autocomplete component.

Step 1: Setting Up State Management

The first step involves creating a state variable to manage the ID input. This value will be linked to your TextField component, allowing it to be dynamic.

[[See Video to Reveal this Text or Code Snippet]]

Step 2: Making the GraphQL Query

With your ID being managed by state, you can now make a GraphQL query to fetch the relevant todo items. This is done using the useQuery hook provided by Apollo.

In the above code snippet, when the ID changes in the TextField, the GraphQL query will be triggered to fetch data based on the new ID. We added skip: !id to prevent the query from running when there is no ID.

Step 3: Integrating the Autocomplete Component

Now that you have the query data, you can directly pass the results into the Autocomplete component. The Autocomplete component will utilize data.todo as options.

[[See Video to Reveal this Text or Code Snippet]]

Final Component Code

Combining everything, here’s what the complete component looks like:

[[See Video to Reveal this Text or Code Snippet]]

Conclusion

By leveraging state management and the powerful GraphQL querying capabilities, we have successfully integrated the Material UI Autocomplete component with dynamic data based on user input. This approach enhances your application's user experience by providing real-time suggestions in response to user interaction.

Feel free to explore more features of Material UI and Apollo Client to further enrich your web applications!