getEndpointFromRegion.js•749 B
export const getEndpointFromRegion = async (input) => {
const { tls = true } = input;
const region = await input.region();
const dnsHostRegex = new RegExp(/^([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9-]{0,61}[a-zA-Z0-9])$/);
if (!dnsHostRegex.test(region)) {
throw new Error("Invalid region in client config");
}
const useDualstackEndpoint = await input.useDualstackEndpoint();
const useFipsEndpoint = await input.useFipsEndpoint();
const { hostname } = (await input.regionInfoProvider(region, { useDualstackEndpoint, useFipsEndpoint })) ?? {};
if (!hostname) {
throw new Error("Cannot resolve hostname from client config");
}
return input.urlParser(`${tls ? "https:" : "http:"}//${hostname}`);
};