Seedance 2.0 Image-to-Video API

set -euo pipefail
: "${VIDGO_API_KEY:?Set VIDGO_API_KEY in your environment}"

REQUEST_BODY=$(cat <<'JSON'
{
  "model": "seedance-2.0/image-to-video",
  "input": {
    "prompt": "Begin exactly from Image 1 and finish on Image 2. In one continuous four-second locked-camera shot, the same observatory dome opens along its existing seam while the same telescope rises from its stowed position and rotates upward through the opening. Preserve the building footprint, white metal panels, concrete base, service opening, telescope construction, foreground rocks, mountains, frost, star field, camera position, crop, and blue-hour color throughout. Mechanical movement must be continuous, correctly hinged, and free of warping; settle cleanly into the final composition. Synchronized audio: a low dome motor, two restrained gear changes, a soft metal stop, and distant alpine wind. No cuts, no people, no vehicles, no extra structures, no readable text, no logos, no brands, no products, no advertising, no watermark.",
    "duration": 4,
    "resolution": "720p",
    "aspect_ratio": "auto",
    "image_urls": [
      "https://cdn.vidgo.ai/apis/models/bytedance/seedance-2.0/image-to-video/v1/input-start-frame.png",
      "https://cdn.vidgo.ai/apis/models/bytedance/seedance-2.0/image-to-video/v1/input-end-frame.png"
    ],
    "generate_audio": true,
    "seed": 26082702
  }
}
JSON
)

SUBMIT_RESPONSE=$(curl --silent --show-error --fail-with-body \
  --request POST \
  --url "https://api.vidgo.ai/api/generate/submit" \
  --header "Authorization: Bearer $VIDGO_API_KEY" \
  --header "Content-Type: application/json" \
  --data "$REQUEST_BODY")

TASK_ID=$(printf '%s' "$SUBMIT_RESPONSE" | jq -r '.data.task_id // .task_id // empty')
if [ -z "$TASK_ID" ]; then
  printf 'Submit response did not include task_id:
%s
' "$SUBMIT_RESPONSE" >&2
  exit 1
fi

while true; do
  STATUS_RESPONSE=$(curl --silent --show-error --fail-with-body \
    --url "https://api.vidgo.ai/api/generate/status/8HZGPXXLKL5B39OS" \
    --header "Authorization: Bearer $VIDGO_API_KEY")
  STATUS=$(printf '%s' "$STATUS_RESPONSE" | jq -r '.data.status // .status // empty')

  case "$STATUS" in
    finished)
      printf '%s' "$STATUS_RESPONSE" | jq -r '(.data.files // .files // [])[]?.file_url'
      break
      ;;
    failed)
      printf '%s' "$STATUS_RESPONSE" | jq -r '.data.error_message // .error_message // "Generation failed"' >&2
      exit 1
      ;;
    not_started|running)
      sleep 2
      ;;
    *)
      printf 'Unexpected task status: %s
' "$STATUS" >&2
      exit 1
      ;;
  esac
done