Ali•3y ago

Using tRPC for uploading audio files

I want to create an api router in tRPC but am not sure if the following code is doable with tRPC. If yes can you point me to a resource where I can learn how to do it?

import FormData from "form-data";
import { withFileUpload } from "next-multiparty";
import { createReadStream } from "fs";
import { type NextRequest, type NextResponse } from "next/server";

export const config = {
  api: {
    bodyParser: false,
  },
};

const handler = withFileUpload(async (req: NextRequest, res: NextResponse) => {
  const file = req.file;
  if (!file) {
    res.status(400).send("No file uploaded");
    return;
  }
  // Create form data
  const formData = new FormData();
  formData.append("file", createReadStream(file.filepath), "audio.wav");
  formData.append("model", "whisper-1");
  const response = await fetch(
    "https://api.openai.com/v1/audio/transcriptions",
    {
      method: "POST",
      headers: {
        ...formData.getHeaders(),
        Authorization: `...`,
      },
      body: formData,
    }
  );
  const { text, error } = await response.json();

  if (response.ok) {
    res.status(200).json({ text: text });
  } else {
    console.log("OPEN AI ERROR:");
    console.log(error.message);
    res.status(400).send(new Error());
  }
});

export default handler;

import FormData from "form-data";
import { withFileUpload } from "next-multiparty";
import { createReadStream } from "fs";
import { type NextRequest, type NextResponse } from "next/server";

export const config = {
  api: {
    bodyParser: false,
  },
};

const handler = withFileUpload(async (req: NextRequest, res: NextResponse) => {
  const file = req.file;
  if (!file) {
    res.status(400).send("No file uploaded");
    return;
  }
  // Create form data
  const formData = new FormData();
  formData.append("file", createReadStream(file.filepath), "audio.wav");
  formData.append("model", "whisper-1");
  const response = await fetch(
    "https://api.openai.com/v1/audio/transcriptions",
    {
      method: "POST",
      headers: {
        ...formData.getHeaders(),
        Authorization: `...`,
      },
      body: formData,
    }
  );
  const { text, error } = await response.json();

  if (response.ok) {
    res.status(200).json({ text: text });
  } else {
    console.log("OPEN AI ERROR:");
    console.log(error.message);
    res.status(400).send(new Error());
  }
});

export default handler;

2 Replies

Nick•3y ago

You can’t post files directly to a procedure in tRPC (yet) so it’s best to use a file host like S3 and generate an upload uri for the client to use

mozzius•3y ago

Either that or convert to base64 (worse option but technically possible)

Using tRPC for uploading audio files

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