Fetch polyfills

Search JS API Reference

When running Search JS Core in a Node.js environment, the global fetch implementation must be polyfilled.

This can be done either through a global polyfill (for example, import 'cross-fetch/polyfill';) or by passing in a fetch object directly into the polyfillFetch function below. We recommend using well-supported libraries like cross-fetch or node-fetch.

polyfillFetch

Polyfills fetch implementation used in Search JS Core.

If a fetch implementation is already available, the polyfill will be silently ignored.

When running Search JS Core in a Node.js environment, fetch must be either polyfilled globally or passed into this function before usage of internal library functionality.

Parameters

Name	Description
opts FetchImplementation	Options for the polyfill.
opts.AbortController AbortController	Required. A custom AbortController implementation.
opts.fetch fetch	Required. A custom fetch implementation.
force boolean(default false)	If true , the polyfill will be forced to load. Otherwise, it will only load if fetch is not available.

Returns

void

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