Upload Flow

import requests

API_KEY = "mk_your_api_key"
BASE = "https://api.mosaic.so"

# 1. Get upload URL
data = requests.post(f"{BASE}/uploads/audio/get_upload_url",
    headers={"Authorization": f"Bearer {API_KEY}"}).json()

# 2. Upload file
with open("music.mp3", "rb") as f:
    requests.post(data["upload_url"], data=data["upload_fields"], files={"file": f})

# 3. Finalize
result = requests.post(f"{BASE}/uploads/audio/finalize_upload",
    headers={"Authorization": f"Bearer {API_KEY}"},
    json={"audio_id": data["audio_id"]}).json()

# 4. Use in update_params
run = requests.post(f"{BASE}/agent/YOUR_AGENT_ID/run",
    headers={"Authorization": f"Bearer {API_KEY}", "Content-Type": "application/json"},
    json={
        "video_urls": ["https://youtube.com/watch?v=dQw4w9WgXcQ"],
        "update_params": {
            "AUDIO_NODE_ID": {"audio_id": result["audio_id"]}
        }
    }).json()

print(f"Run ID: {run['run_id']}")

const API_KEY = "mk_your_api_key";
const BASE = "https://api.mosaic.so";

// 1. Get upload URL
const data = await fetch(`${BASE}/uploads/audio/get_upload_url`, {
  method: "POST",
  headers: { "Authorization": `Bearer ${API_KEY}` }
}).then(r => r.json());

// 2. Upload file
const formData = new FormData();
Object.entries(data.upload_fields).forEach(([k, v]) => formData.append(k, v));
formData.append("file", audioFile);
await fetch(data.upload_url, { method: "POST", body: formData });

// 3. Finalize
const result = await fetch(`${BASE}/uploads/audio/finalize_upload`, {
  method: "POST",
  headers: { "Authorization": `Bearer ${API_KEY}`, "Content-Type": "application/json" },
  body: JSON.stringify({ audio_id: data.audio_id })
}).then(r => r.json());

// 4. Use in update_params
const run = await fetch(`${BASE}/agent/YOUR_AGENT_ID/run`, {
  method: "POST",
  headers: { "Authorization": `Bearer ${API_KEY}`, "Content-Type": "application/json" },
  body: JSON.stringify({
    video_urls: ["https://youtube.com/watch?v=dQw4w9WgXcQ"],
    update_params: {
      "AUDIO_NODE_ID": { audio_id: result.audio_id }
    }
  })
}).then(r => r.json());

console.log(`Run ID: ${run.run_id}`);