File Upload

This example show how to upload a jsonl file to the Files endpoint using using Node.js/JavaScript. This example is posting a file for the classifications endpoint. You can change the file purpose in step 2 of the code below. The purpose can be, search, answers, or classifications. See the see the OpenAI Docs for details.

For the example code to work, you'll also need to create a file named reviews.jsonl and add data for the classifications endpoint. Here is some sample data you can use for testing.

{"text": "i love this place", "label": "Good", "metadata": {"id":"1"}}

{"text": "i hate this place", "label": "Poor", "metadata": {"id":"2"}}

{"text": "i have no opinion", "label": "Neutral", "metadata": {"id":"3"}}

NOTE: This tutorial is part of a series. If you have not read the getting started post you should check that one out first.

Steps

1. log in to Replit.com

2. Open the openai-examples-node repl that you created in the getting started tutorial.

3. Create a new file named file-upload.js

4. Copy the following code into the file-upload.js file.

// 1. Require a few libraries that will be used

const fs = require('fs');

const axios = require('axios');

const FormData = require('form-data');

// 2. Get the data file ready for the http post

const data = new FormData();

data.append('purpose', 'classifications');

data.append('file', fs.createReadStream('reviews.jsonl'));

// 3. Set http request parameters for axios

const params = {

method: 'post',

url: 'https://api.openai.com/v1/files',

headers: {

'Authorization': 'Bearer ' + process.env.OPENAI_API_KEY,

...data.getHeaders()

},

data : data

};

// 4. Call the openai api and log results to the console

axios(params)

.then(function (response) {

console.log(JSON.stringify(response.data));

})

.catch(function (error) {

console.log(error);

});

4. Update the .replit file with the following

language = "nodejs"

run = "node file-upload.js"

5. Review the results in the console pane. You should see a result similar to the following example.

{
  "id":"file-ZMHNItHRzrkYbIf19mutOvlR",
  "object":"file",
  "bytes":215,
  "created_at":1618832808,
  "filename":"reviews.jsonl",
  "purpose":"classifications",
  "status":"uploaded",
  "status_details":null
}

The id value is what you'll need from the response to use the file with the search, classifications, or answers endpoint.

Let me know if you have any questions!