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How can SolidJS context be utilized in an asynchronous function?

asked 2021-10-28 11:00:00 +0000

plato gravatar image

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answered 2021-07-12 13:00:00 +0000

scrum gravatar image

To utilize SolidJS context in an asynchronous function, you first need to obtain the context. You can do this using the useContext hook.

For example, let's say you have a context called MyContext:

import { createContext, useContext } from 'solid-js';

const MyContext = createContext({ foo: 'bar' });

function MyComponent() {
  const context = useContext(MyContext);

  return (
    <div>{context.foo}</div>
  );
}

Now let's say you have an asynchronous function that needs to access the context:

async function myAsyncFunction() {
  const context = useContext(MyContext);

  const result = await fetch('/some-api-endpoint', {
    headers: {
      'Authorization': `Bearer ${context.token}`
    }
  });

  // do something with the result
}

However, this will not work because you cannot use hooks inside asynchronous functions. One solution is to obtain the context outside the function and pass it as a parameter:

async function myAsyncFunction(context) {
  const result = await fetch('/some-api-endpoint', {
    headers: {
      'Authorization': `Bearer ${context.token}`
    }
  });

  // do something with the result
}

function MyComponent() {
  const context = useContext(MyContext);

  async function handleButtonClick() {
    await myAsyncFunction(context);
  }

  return (
    <button onClick={handleButtonClick}>Call API</button>
  );
}

In this example, we obtain the context inside the component and pass it as a parameter to the asynchronous function. This allows us to utilize the context inside the function.

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Asked: 2021-10-28 11:00:00 +0000

Seen: 13 times

Last updated: Jul 12 '21