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    4. Return JSON

    Return JSON

    Return JSON directly from a Worker script, useful for building APIs and middleware.

    export default {
      async fetch(request) {
        const data = {
          hello: "world",
        };
    

        const json = JSON.stringify(data, null, 2);
    

        return new Response(json, {
          headers: {
            "content-type": "application/json;charset=UTF-8",
          },
        });
      },

    };


    const handler: ExportedHandler = {
      async fetch(request: Request) {
        const data = {
          hello: "world",
        };
    

        const json = JSON.stringify(data, null, 2);
    

        return new Response(json, {
          headers: {
            "content-type": "application/json;charset=UTF-8",
          },
        });
      },

    };