hooks/authenticatedFetch.js


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function authenticatedFetch(uri, options) {
	var AppBridge = window['app-bridge'];
	var app = AppBridge.createApp({
		apiKey: '',
		host: ''
	});
	var fetchFunction = window['app-bridge-utils'].authenticatedFetch(app);
	return async (uri, options) => {
		var response = await fetchFunction(uri, options);
		var headers = response.headers;
		if (headers.get("X-Shopify-API-Request-Failure-Reauthorize")
			=== "1") {
			var authUrlHeader = headers.get(
				"X-Shopify-API-Request-Failure-Reauthorize-Url")
				|| `/api/auth`;
			var Redirect = AppBridge.actions.Redirect;
			Redirect.create(app).dispatch(Redirect.Action.REMOTE,
				authUrlHeader.startsWith("/")
				? `https://${window.location.host}${authUrlHeader}`
				: authUrlHeader
			);
		}
		return response;
	};
}