Recuperare un video Seedance

GET

videos

{id}

cURL

curl https://api.cometapi.com/v1/videos/<TASK_ID> \
  -H "Authorization: Bearer $COMETAPI_KEY"

import os
import time
import requests

TASK_ID = "<TASK_ID>"
headers = {"Authorization": "Bearer " + os.environ["COMETAPI_KEY"]}
TERMINAL = {"completed", "failed", "error"}

while True:
    response = requests.get(
        f"https://api.cometapi.com/v1/videos/{TASK_ID}",
        headers=headers,
        timeout=15,
    )
    response.raise_for_status()
    data = response.json()
    print(data["status"], data.get("progress"))
    if data["status"] in TERMINAL:
        print(data.get("video_url"))
        break
    time.sleep(10)

const TASK_ID = "<TASK_ID>";
const terminal = new Set(["completed", "failed", "error"]);

while (true) {
  const response = await fetch(
    `https://api.cometapi.com/v1/videos/${TASK_ID}`,
    { headers: { Authorization: `Bearer ${process.env.COMETAPI_KEY}` } },
  );
  const data = await response.json();
  console.log(data.status, data.progress);
  if (terminal.has(data.status)) {
    console.log(data.video_url);
    break;
  }
  await new Promise((resolve) => setTimeout(resolve, 10_000));
}

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.cometapi.com/v1/videos/{id}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "https://api.cometapi.com/v1/videos/{id}"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("Authorization", "Bearer <token>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.get("https://api.cometapi.com/v1/videos/{id}")
  .header("Authorization", "Bearer <token>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.cometapi.com/v1/videos/{id}")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Get.new(url)
request["Authorization"] = 'Bearer <token>'

response = http.request(request)
puts response.read_body

{
  "id": "task_abc123",
  "object": "video",
  "model": "doubao-seedance-2-0",
  "status": "in_progress",
  "progress": 30,
  "created_at": 1777385418,
  "completed_at": 1777385485
}

Usa questo endpoint per leggere lo stato di un task creato tramite Create a Seedance video. L’id nel path è il valore restituito dalla chiamata di creazione, indipendentemente da quale modello Seedance abbia prodotto il task. Il corpo della risposta è l’oggetto del task video stesso. Leggi status, progress e video_url al livello superiore.

Macchina degli stati

L’API restituisce stringhe di stato in minuscolo. queued e in_progress non sono terminali; completed, failed ed error sono terminali e il task non cambierà più stato.

Status	Significato	Terminale
`queued`	Accettato e messo in coda per il rendering.	no
`in_progress`	Rendering in corso.	no
`completed`	Completato. `video_url` è presente nella risposta.	sì
`failed`	Il provider ha rifiutato il task.	sì
`error`	Un errore interno ha impedito il completamento.	sì

Frequenza di polling

Esegui il polling ogni 10-20 secondi. La maggior parte dei job termina entro 1-3 minuti, a seconda del modello, della durata e delle dimensioni.

import os
import time
import requests

TASK_ID = "<TASK_ID>"
headers = {"Authorization": "Bearer " + os.environ["COMETAPI_KEY"]}
TERMINAL = {"completed", "failed", "error"}

while True:
    response = requests.get(
        f"https://api.cometapi.com/v1/videos/{TASK_ID}",
        headers=headers,
        timeout=15,
    )
    response.raise_for_status()
    data = response.json()
    if data["status"] in TERMINAL:
        print(data.get("video_url"))
        break
    time.sleep(10)

Campi da monitorare

status — determina la condizione di arresto del tuo ciclo di polling.
progress — intero da 0 a 100 che puoi mostrare in una UI.
video_url — URL di download firmato, presente nelle risposte completed. I download Seedance usano direttamente questo URL invece di una route separata /v1/videos/{id}/content. La firma ha una durata limitata; scarica o ripubblica il file prima che la firma scada.
completed_at — timestamp Unix facoltativo restituito dalla piattaforma. Non usarlo per interrompere il polling; usa invece status.
model — riporta il model ID del modello Seedance usato quando è stato creato il task.

Errori comuni

HTTP 400 con message: "task_not_exist" significa che l’id è sconosciuto. Verifica di aver acquisito l’id da una risposta POST /v1/videos riuscita e di usarlo letteralmente.
HTTP 401 significa che il bearer token è mancante o non valido. Controlla che l’header della richiesta sia Authorization: Bearer $COMETAPI_KEY.

Autorizzazioni

Authorization

string

header

obbligatorio

Bearer token authentication. Use your CometAPI key.

Parametri del percorso

string

obbligatorio

Task id returned by POST /v1/videos.

Risposta

Current Seedance video task state.

string

obbligatorio

Task id.

object

string

obbligatorio

Object type, always video.

model

string

obbligatorio

Model id that generated the task.

status

enum<string>

obbligatorio

Task status. queued and in_progress are non-terminal. completed, failed, and error are terminal.

Opzioni disponibili:

queued,

in_progress,

completed,

failed,

error

progress

integer

obbligatorio

Completion percentage.

Intervallo richiesto: 0 <= x <= 100

created_at

integer

obbligatorio

Task creation time as a Unix timestamp in seconds.

video_url

string | null

Signed download URL for the finished video. Present on completed responses. Seedance downloads use this URL directly instead of a separate /v1/videos/{id}/content route. The signature is time-limited, so download or re-upload the file to your own storage soon after you receive it.

completed_at

integer | null

Optional Unix timestamp returned by the platform. Use status, not this field, to decide when polling can stop.

Crea un video Seedance

Creare un video HappyHorse

cURL

curl https://api.cometapi.com/v1/videos/<TASK_ID> \
  -H "Authorization: Bearer $COMETAPI_KEY"

import os
import time
import requests

TASK_ID = "<TASK_ID>"
headers = {"Authorization": "Bearer " + os.environ["COMETAPI_KEY"]}
TERMINAL = {"completed", "failed", "error"}

while True:
    response = requests.get(
        f"https://api.cometapi.com/v1/videos/{TASK_ID}",
        headers=headers,
        timeout=15,
    )
    response.raise_for_status()
    data = response.json()
    print(data["status"], data.get("progress"))
    if data["status"] in TERMINAL:
        print(data.get("video_url"))
        break
    time.sleep(10)

const TASK_ID = "<TASK_ID>";
const terminal = new Set(["completed", "failed", "error"]);

while (true) {
  const response = await fetch(
    `https://api.cometapi.com/v1/videos/${TASK_ID}`,
    { headers: { Authorization: `Bearer ${process.env.COMETAPI_KEY}` } },
  );
  const data = await response.json();
  console.log(data.status, data.progress);
  if (terminal.has(data.status)) {
    console.log(data.video_url);
    break;
  }
  await new Promise((resolve) => setTimeout(resolve, 10_000));
}

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.cometapi.com/v1/videos/{id}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "https://api.cometapi.com/v1/videos/{id}"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("Authorization", "Bearer <token>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.get("https://api.cometapi.com/v1/videos/{id}")
  .header("Authorization", "Bearer <token>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.cometapi.com/v1/videos/{id}")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Get.new(url)
request["Authorization"] = 'Bearer <token>'

response = http.request(request)
puts response.read_body

{
  "id": "task_abc123",
  "object": "video",
  "model": "doubao-seedance-2-0",
  "status": "in_progress",
  "progress": 30,
  "created_at": 1777385418,
  "completed_at": 1777385485
}

Moderazione dei contenuti

Chiavi API

Macchina degli stati

Frequenza di polling

Campi da monitorare

Errori comuni

Autorizzazioni

Parametri del percorso

Risposta

​Macchina degli stati

​Frequenza di polling

​Campi da monitorare

​Errori comuni

Autorizzazioni

Parametri del percorso

Risposta

Macchina degli stati

Frequenza di polling

Campi da monitorare

Errori comuni