title: Correct media type for swagger spec for downloading zip file
body: <p>I am creating an api which allows downloading a zip file, so for this I am looking for correct media type for sending this zip file as response in swagger &quot;2.0&quot; specification.</p>
  <p>My current api spec looks like this</p>
  <pre><code>/config:
    get:
      produces:
        - application/zip
      responses:
          200: # OK
            description: All config files
            schema:
              type: string
              format: binary
  </code></pre>
  <p>I have compiled this spec with &quot;go-swagger&quot; and implemented the backend for this, but when try to call this API I get this error</p>
  <pre><code>http: panic serving 127.0.0.1:20366: applicationZip producer has not yet been implemented
  </code></pre>
  <p>In the documentation of swagger I don't see this media type</p>
  <p><a href="https://swagger.io/docs/specification/media-types/" rel="nofollow noreferrer">Official swagger media types</a></p>
  <p>So then what should be the correct media type if we want to provide an API to download a zip file.
  Thanks in advance</p>