Quickstart

IDEMPOTENCY_KEY=${IDEMPOTENCY_KEY:-$(uuidgen)}
printf '%s\n' "Save IDEMPOTENCY_KEY for retries: ${IDEMPOTENCY_KEY}" >&2
curl --request POST "${CHENVOYA_BASE_URL}/v1/video/generations" \
  --header "Authorization: Bearer ${CHENVOYA_API_KEY}" \
  --header "Idempotency-Key: ${IDEMPOTENCY_KEY}" \
  --header 'Content-Type: application/json' \
  --data '{
  "model": "dreamina-seedance-2-0-260128",
  "content": [
    {
      "type": "text",
      "text": "A paper boat crossing a moonlit lake."
    }
  ]
}'

import urllib.request
import urllib.parse
import json
import os
import sys
import re
import uuid

key = os.environ["CHENVOYA_API_KEY"].strip()
if not key or re.search(r"[\x00-\x1f\x7f-\x9f]", key):
    sys.exit("Set CHENVOYA_API_KEY to a non-empty value without control characters")
base = os.environ["CHENVOYA_BASE_URL"].rstrip("/")
headers = {"Authorization": "Bearer " + key}
idempotency = os.environ.get("IDEMPOTENCY_KEY") or str(uuid.uuid4())
print("Save IDEMPOTENCY_KEY for retries: " + idempotency, file=sys.stderr)
headers["Idempotency-Key"] = idempotency
path = "/v1/video/generations"
body_text = "{\"model\":\"dreamina-seedance-2-0-260128\",\"content\":[{\"type\":\"text\",\"text\":\"A paper boat crossing a moonlit lake.\"}]}"
headers["Content-Type"] = "application/json"
body = json.dumps(json.loads(body_text)).encode("utf-8")
request = urllib.request.Request(base + path, data=body, headers=headers, method="POST")
try:
    with urllib.request.urlopen(request) as response:
        print(response.read().decode("utf-8"))
except urllib.request.HTTPError as error:
    print(error.read().decode("utf-8"))
    sys.exit(1)

// Needs Node.js 20 or later; save it as a .mjs file and run it.
const key = process.env.CHENVOYA_API_KEY?.trim();
if (!key || /[\x00-\x1f\x7f-\x9f]/.test(key)) {
  console.error("Set CHENVOYA_API_KEY to a non-empty value without control characters");
  process.exit(1);
}
const base = process.env.CHENVOYA_BASE_URL;
if (!base) throw new Error("Set CHENVOYA_BASE_URL");
const headers = {Authorization: `Bearer ${key}`};
const idempotency = process.env.IDEMPOTENCY_KEY || crypto.randomUUID();
console.error("Save IDEMPOTENCY_KEY for retries: " + idempotency);
headers["Idempotency-Key"] = idempotency;
const path = "/v1/video/generations";
let bodyText = "{\"model\":\"dreamina-seedance-2-0-260128\",\"content\":[{\"type\":\"text\",\"text\":\"A paper boat crossing a moonlit lake.\"}]}";
headers["Content-Type"] = "application/json";
const body = JSON.stringify(JSON.parse(bodyText));
const response = await fetch(base.replace(/\/$/, "") + path, {method: "POST", headers, body: body});
console.log(await response.text());
if (!response.ok) process.exitCode = 1;

package main

import (
	"crypto/rand"
	"fmt"
	"io"
	"net/http"
	"os"
	"regexp"
	"strings"
)

func main() {
	key := strings.TrimSpace(os.Getenv("CHENVOYA_API_KEY"))
	if key == "" || regexp.MustCompile(`[\x00-\x1f\x7f-\x9f]`).MatchString(key) {
		fail("Set CHENVOYA_API_KEY to a non-empty value without control characters")
	}
	base := strings.TrimRight(os.Getenv("CHENVOYA_BASE_URL"), "/")
	if base == "" {
		fail("Set CHENVOYA_BASE_URL")
	}
	path := "/v1/video/generations"
	bodyText := "{\"model\":\"dreamina-seedance-2-0-260128\",\"content\":[{\"type\":\"text\",\"text\":\"A paper boat crossing a moonlit lake.\"}]}"
	request, err := http.NewRequest("POST", base+path, strings.NewReader(bodyText))
	if err != nil {
		fail(err.Error())
	}
	request.Header.Set("Authorization", "Bearer "+key)
	request.Header.Set("Content-Type", "application/json")
	idempotency := os.Getenv("IDEMPOTENCY_KEY")
	if idempotency == "" {
		idempotency = newOperationKey()
	}
	fmt.Fprintln(os.Stderr, "Save IDEMPOTENCY_KEY for retries: "+idempotency)
	request.Header.Set("Idempotency-Key", idempotency)
	response, err := http.DefaultClient.Do(request)
	if err != nil {
		fail(err.Error())
	}
	text, err := io.ReadAll(response.Body)
	response.Body.Close()
	if err != nil {
		fail(err.Error())
	}
	fmt.Println(string(text))
	if response.StatusCode < 200 || response.StatusCode > 299 {
		os.Exit(1)
	}
}

func fail(message string) {
	fmt.Fprintln(os.Stderr, message)
	os.Exit(1)
}

// newOperationKey returns a random UUID; save it to retry with the same value.
func newOperationKey() string {
	var b [16]byte
	if _, err := rand.Read(b[:]); err != nil {
		fail(err.Error())
	}
	b[6] = b[6]&0x0f | 0x40
	b[8] = b[8]&0x3f | 0x80
	return fmt.Sprintf("%x-%x-%x-%x-%x", b[0:4], b[4:6], b[6:8], b[8:10], b[10:16])
}