Function isJSONFile

src/utils/helpers.ts:8–9

(url: string)

const isGraphQLURI = (url: string): boolean =>
  url.toLowerCase().endsWith("graphql");
const isJSONFile = (url: string): boolean =>
  url.toLowerCase().endsWith(".json");
const isValidURL = (url: string): boolean => {
  try {
    new URL(url);