Cant convert using buffer

[agustinp93]

Hi,
I tried the convert office file passing buffer but I have no response.

Im downloading a file from s3 (uint8array) converting it to arraybuffer and using:

const toPDF = pipe(
        gotenberg("http://localhost:3000"), 
        convert,
        office,
        set(filename("result.pdf")),
        please
      );
const pdf = await toPDF({ "document.docx": resp.Body.buffer });

Any way to check if the api is up with the ping request? I didnt see it on the doc

[yumauri]

Hello, @agustinparamio !

There is, actually!
I didn't focus on it, though, so if you are using TypeScript — you have to give it empty source.
It is not required in plain JavaScript.

import { gotenberg, pipe, ping, please } from 'gotenberg-js-client'

// ...

pipe(
  gotenberg('http://localhost:3000'),
  ping,
  please
)({}) // <- empty source object to satisfy typings
  .then(() => console.log('Gotenberg is up'))
  .catch((error) => console.error('Gotenberg is down:', error))

Ping request returns nothing (Promise<void>), so in async-await syntax it could be smth like this:

try {
  await pipe(gotenberg('http://localhost:3000'), ping, please)({})
  console.log('Gotenberg is up')
} catch (error) {
  console.error('Gotenberg is down:', error)
}

Do you have any errors on your or Gotenberg sides?

[agustinp93]

Hi @yumauri, thank you for the answer.

I tried some versions of the following code but I couldn't fix the error I got..

try {
  await pipe(gotenberg('http://localhost:3000'), ping, please)({})
  console.log('Gotenberg is up')
} catch (error) {
  console.error('Gotenberg is down:', error)
}

and got this error
index.js:1437 Gotenberg is down: TypeError: The "listener" argument must be of type Function. Received type object

also tried using an axios request but im blocked by cors policy and from what I can see on gotemberg doc i cant change that.

gotenberg cant be used from react?
any advice?

[yumauri]

Hm, I'm a bit cautious of you mentioning "cors policy" — are you trying to use this client from the browser or I misunderstood that?

[agustinp93]

yes, im trying to use it from a react app

[yumauri]

Unfortunately, for now this is only server-side client, for Node.js :(

Technically it is possible (I hope) to adopt it for browser also, I created issue #2 for that long ago, but as for now there are some node specific functions and classes are used, and it is impossible to use this library out-of-the box in the browser, sorry.

I will appreciate for PR to add isomorphic features in this package :)

Also, you are the first, trying to use this client from the browser, there wasn't any real demand for that. Now, I think, I'll try to spare some time for that task in near future.

(But you will have to deal with CORS anyways, with or without my library, if Gotenberg is deployed on a different origin).

[agustinp93]

Thank you @yumauri , will try something else then

[yumauri]

Related to CORS, as far as I understand, official Gotenberg position is that you should add some proxy (Nginx for example) before Gotenberg instance, where you can easily add CORS headers.
See gotenberg/gotenberg#62