How to use a custom fetch function in an iframe?

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by lizzie , in category: Javascript , 4 months ago

How to use a custom fetch function in an iframe?

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1 answer

by jasen_gottlieb , 4 months ago

@lizzie 

To use a custom fetch function in an iframe, you can pass a reference to the function as a prop to the iframe component. Here's an example:

  1. Define your custom fetch function in the parent component:
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const customFetch = async (url, options) => {
  // Add your custom logic here
  const response = await fetch(url, options);
  return response.json();
};


  1. Pass the custom fetch function as a prop to the iframe component:
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<iframe src="child.html" customFetch={customFetch} />


  1. Access the custom fetch function in the iframe component:
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const iframe = window.parent;
const customFetch = iframe.customFetch;

// Now you can use the custom fetch function in the iframe component
customFetch('https://api.example.com/data', { method: 'GET' })
  .then(data => console.log(data))
  .catch(error => console.error(error));


By passing the custom fetch function as a prop to the iframe component, you can access and use it within the iframe to fetch data using your custom logic.