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Overview

This guide outlines the step-by-step process to upload a video file to Google Cloud Storage (GCS) using the Opus API and subsequently create a clip project. This includes generating an upload link, initiating a resumable upload session, uploading a video, and creating a clip project using that uploaded file.

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Authentication

All API requests require an API key: 
Authorization: Bearer <API_KEY>
Replace <API_KEY> with your valid API token.

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Endpoint

POST https://api.opus.pro/api/upload-links

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Headers

Accept: application/json
Content-Type: application/json
Authorization: Bearer <API_KEY>

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Request Body

{
  "video": {
    "usecase": "LocalUpload"
  }
}

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Response Example

{
  "url": "https://storage.googleapis.com/ext.gcs.opus.pro/upload/org_000000000/google-upload",
  "uploadId": "abc123xyz456",
  "dnsUrl": "https://api.opus.pro",
  "useAmount": 0,
  "totalAmount": 107974182498
}

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cURL Example

curl --request POST \
  --url https://api.opus.pro/api/upload-links \
  --header 'Accept: application/json' \
  --header 'Content-Type: application/json' \
  --header 'Authorization: Bearer <API_KEY>' \
  --data '{
    "video": {
      "usecase": "LocalUpload"
    }
  }'

​
Step 2: Initiate Resumable Upload Session

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Endpoint

POST <url_from_previous_step>

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Headers

x-goog-resumable: start
Content-Length: 0

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Request Body

(empty)
  • Replace <url_from_previous_step> with the url received from Step 1
  • No response body is returned
  • Look for the location header in the response which contains the resumable upload URL

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Example Response Headers

HTTP/2 201
x-goog-resumable-upload-id: AAkIAwy-YC6V...
location: https://storage.googleapis.com/ext.gcs.opus.pro/upload/org_000000000/google-upload

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cURL Example

curl --request POST \
  --url "<url_from_previous_step>" \
  --header 'x-goog-resumable: start' \
  --header 'Content-Length: 0' \
  --verbose

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Step 3: Upload Video File

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Endpoint

PUT <resumable_upload_location>

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Headers

Content-Type: application/octet-stream

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Upload File

Use the --upload-file option with your actual video file (e.g., test.mp4).

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cURL Example

curl -X PUT -v \
  -H "Content-Type: application/octet-stream" \
  --upload-file test.mp4 \
  "<location>"
Replace <location> with the location URL from Step 2 response headers.

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Step 4: Create Clip Project

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Endpoint

POST https://api.opus.pro/api/clip-projects

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Headers

Accept: application/json
Content-Type: application/json
Authorization: Bearer <API_KEY>

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Request Body

{
  "videoUrl": "<uploadId>",
  "inputPref": {
    "sourceLang": "auto"
  },
  "editJumpcuts": {
    "enabled": true,
    "silenceRanges": []
  },
  "uploadedVideoAttr": {
    "title": "YOUR_TITLE"
  },
  "curationPref": {
    "model": "ClipAnything",
    "clipDurations": [[180, 300], [300, 600]]
  },
  "addKlyrics": false,
  "addSplk": false,
  "audio": {
    "renderedPref": {
      "templateId": "preset-fancy-Karaoke"
    }
  }
}

​
cURL Example

curl --request POST \
  --url https://api.opus.pro/api/clip-projects \
  --header 'Accept: application/json' \
  --header 'Content-Type: application/json' \
  --header 'Authorization: Bearer <API_KEY>' \
  --data '{
    "videoUrl": "<uploadId>",
    "inputPref": {
      "sourceLang": "auto"
    },
    "editJumpcuts": {
      "enabled": true,
      "silenceRanges": []
    },
    "uploadedVideoAttr": {
      "title": "YOUR_TITLE"
    },
    "curationPref": {
      "model": "ClipAnything",
      "clipDurations": [[180, 300], [300, 600]]
    },
    "addKlyrics": false,
    "addSplk": false,
    "audio": {
      "renderedPref": {
        "templateId": "preset-fancy-Karaoke"
      }
    }
  }'
  • Replace <uploadId> with the ID returned in Step 1
  • Replace "YOUR_TITLE" with your desired clip project title

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Full Workflow Summary

1

Generate Upload Link

Get url and uploadId from the upload-links endpoint
2

Start Resumable Session

Get location from response headers using the url from Step 1
3

Upload Video File

Upload your video file to the location from Step 2
4

Create Clip Project

Create a new clip project using the uploadId from Step 1

Create a New Project

Learn more about creating clip projects with external video URLs

Get Clips

Retrieve clips from your created projects