Leveraging asynchronous data in a synchronous manner

I am dealing with tax rate data stored in the database to ensure easy updates when necessary. However, JavaScript's asynchronous nature complicates accessing this data as it requires promises or callbacks to retrieve query results. Is there a solution to fetching database values in a single module and using them synchronously in other modules?

This issue arises as rendering components in React based on promise values can be cumbersome. Any suggestions or insights would be greatly appreciated. Thank you!

javascriptasynchronous

Answer №1

When working within a function, you now have the ability to utilize the async and await keywords to handle promises in a way that feels synchronous. However, it's important to note that you cannot transform an asynchronous action into a completely synchronous function that immediately returns a value without resorting to unconventional methods.

In React, if you need to render a component based on a promised value, ensure there is space allocated in this.state for the value. Then, reference this.state.yourValue within the render() method and initiate the promise call in componentDidMount(), updating the state once the data is available. You can check out an example on JSFiddle here.

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