How can I convert a Deepgram cURL command to an n8n HTTP Request Node configuration?

Below is an example of how you can convert your cURL command into an HTTP Request node configuration in n8n.

Below are the key steps:

1. Method & URL:

   • Set the method to POST
   • Use the URL without query parameters in the field (e.g., https://api.deepgram.com/v1/listen)
   • Enable Send Query Parameters and add the following name/value pairs:
     • diarize: true
     • punctuate: true
     • utterances: true

2. Headers:

   • Add a header with the key Authorization and value: Token YOUR_DEEPGRAM_API_KEY
   • Add a header with the key Content-Type (or content-type) and value: audio/mp3

3. Body as Binary Data:

   • Turn on Send Body
   • Select the n8n Binary File option.
   • Set the Input Data Field Name to the binary property that holds your mp3 file (for example, if you use a previous node that loads the file, use the exact field name provided, e.g. data).

4. Response:

   • The node will return the response from Deepgram. If you’d like to format or extract specific information like in your cURL command with jq, you can use a subsequent node (such as Function or Set) to extract the utterances and format the output as desired.

Below is an example JSON configuration for your HTTP Request node:

JSONCopied
{
  "name": "Deepgram POST Request",
  "type": "n8n-nodes-base.httpRequest",
  "typeVersion": 4,
  "position": [500, 400],
  "parameters": {
    "requestMethod": "POST",
    "url": "https://api.deepgram.com/v1/listen",
    "sendBinaryData": true,
    "binaryPropertyName": "data",
    "options": {
      "queryParameters": [
        {
          "name": "diarize",
          "value": "true"
        },
        {
          "name": "punctuate",
          "value": "true"
        },
        {
          "name": "utterances",
          "value": "true"
        }
      ],
      "headerParameters": [
        {
          "name": "Authorization",
          "value": "Token YOUR_DEEPGRAM_API_KEY"
        },
        {
          "name": "Content-Type",
          "value": "audio/mp3"
        }
      ]
    }
  }
}

Notes:

• Replace YOUR_DEEPGRAM_API_KEY with your actual Deepgram API key.
• The binary file should be accessible as a binary property on the incoming data (in the example it is referenced as data). If you’re reading the file from disk using a separate node (for example, Read/Write Files from Disk), make sure that the binary property name matches here.
• For processing or transforming the response (to extract the utterances as in your cURL command with jq), you could chain a Function node to iterate over the returned JSON and reformat it.

This setup should allow your HTTP Request node to upload the mp3 file with the required Deepgram parameters for diarization and structured output.