function getAssetMappings()

in apps-rendering/src/server/assets.ts [7:39]

• 28 lines of code
• 6 McCabe index (conditional complexity)

function getAssetMappings(): AssetMapping {
	if (process.env.NODE_ENV !== 'production') {
		return null;
	}

	const manifestLocation = process.env.ASSETS_MANIFEST;

	if (!manifestLocation) {
		logger.error('Environment variable ASSETS_MANIFEST not set');
		throw new Error('Environment variable ASSETS_MANIFEST not set');
	}

	try {
		const parsed: unknown = JSON.parse(
			fs.readFileSync(manifestLocation).toString(),
		);

		if (!isObject(parsed)) {
			throw new Error("Manifest file doesn't appear to be an object");
		}

		return Object.entries(parsed).reduce(
			(mappings, [key, value]) =>
				typeof value === 'string'
					? { ...mappings, [key]: value }
					: mappings,
			{},
		);
	} catch (e) {
		logger.error(`Unable to load asset mapping`, e);
		throw e;
	}
}