Buffer doesn't work

[NetOpWibby]

At least in the way I'm attempting to do it. I'm working on a microservice to do image conversion.

async function convertWebp(data) {
  // data.blob.headers["content-type"] = "application/octet-stream";
  const buf = await buffer(data.blob, { limit: "5mb" });

  imagemin(buf, "build/images", {
    use: [
      imageminWebp({ quality: 80 })
    ]
  }).then(files => {
    log(files);
  });
}

The error I get in the console is:
UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 21): TypeError: Cannot read property 'content-type' of undefined

As you can see in the comment I left in my code, I tried adding headers but I assume I'm not doing this right. Does anyone have any insight into what I'm doing wrong?

[tungv]

Assuming you export this function as the default export (es6) or via module.exports =, headers can be accessed by data.headers. data is an http request in nodejs

[NetOpWibby]

My solution was to not use it. I found another to do what I was aiming to do.