把机柜数据拉进你自己的系统

# 名下全部设备（推荐：设备多的时候一次拿完）
GET https://openapi.doumaisupermarket.online/v1/devices

# 指定一台设备，按序列号（SN）
GET https://openapi.doumaisupermarket.online/v1/devices/{sn}

curl -s -i \
  -H "X-Access-Key-Id: gj_ak_3f9a2b7c1d8e4a5b" \
  -H "X-Access-Key-Secret: kJ8xQw3fR7mN2pL5tZ9vB1cD4eF6gH8jK0lM2nO4pQw" \
  "https://openapi.doumaisupermarket.online/v1/devices?fields=temperature,smoke"

{
  "code": 200,
  "msg": "success",
  "data": {
    "list": [
      {
        "sn": "GJ-354560230B34343043335435",
        "name": "一号库房",
        "status": "online",
        "lastSeen": "2026-09-22T10:31:02",
        "temperature": 24.5,
        "smoke": 0
      }
    ],
    "total": 1
  }
}

# 只要温度和烟雾
/v1/devices?fields=temperature,smoke

# 只要指定设备的水浸
/v1/devices/GJ-354560230B34343043335435?fields=water

# 省略 fields = 全要（等价于 temperature,smoke,water）
/v1/devices

HTTP/1.1 429
Retry-After: 12

{
  "code": 429,
  "msg": "请求过于频繁，请在 12 秒后重试",
  "data": null
}

# -i 显示响应头，方便看 Retry-After
curl -s -i \
  -H "X-Access-Key-Id: $GJ_KEY_ID" \
  -H "X-Access-Key-Secret: $GJ_KEY_SECRET" \
  "https://openapi.doumaisupermarket.online/v1/devices?fields=temperature,smoke,water"

# 凭据放环境变量，别写进脚本、别提交进 git
# export GJ_KEY_ID="gj_ak_..."
# export GJ_KEY_SECRET="..."

import os, time, requests

BASE = "https://openapi.doumaisupermarket.online/v1"
HEADERS = {
    "X-Access-Key-Id": os.environ["GJ_KEY_ID"],
    "X-Access-Key-Secret": os.environ["GJ_KEY_SECRET"],
}

def fetch_devices(fields="temperature,smoke,water"):
    """拉全部设备。返回 list；不可恢复的错误抛异常。"""
    r = requests.get(f"{BASE}/devices",
                     headers=HEADERS,
                     params={"fields": fields},
                     timeout=10)

    if r.status_code == 429:
        # 退避的标准做法：听服务端的 Retry-After
        wait = int(r.headers.get("Retry-After", 30))
        raise RateLimited(wait)

    if r.status_code in (401, 403):
        # 401 查配置；403 去 App 里启用
        raise AuthProblem(r.status_code, r.json().get("msg"))

    r.raise_for_status()
    return r.json()["data"]["list"]

# 主循环：30 秒以上一次，一次拿全部设备
while True:
    try:
        for d in fetch_devices():
            # ⚠️ smoke 为 0 不等于「确认无烟」，判在线看 status/lastSeen
            print(d["sn"], d["status"], d.get("temperature"))
        time.sleep(30)
    except RateLimited as e:
        time.sleep(e.wait)      # 按服务端说的秒数退避
    except requests.RequestException:
        time.sleep(10)          # 网络抖动，稍后重试

import java.net.URI;
import java.net.http.*;
import java.time.Duration;

public class OpenApiClient {

    private static final String BASE =
            "https://openapi.doumaisupermarket.online/v1";

    private final HttpClient http = HttpClient.newBuilder()
            .connectTimeout(Duration.ofSeconds(10))
            .build();
    private final String keyId, keySecret;

    public OpenApiClient(String keyId, String keySecret) {
        this.keyId = keyId;
        this.keySecret = keySecret;
    }

    /** 拉全部设备。429 会按 Retry-After 退避一次后重试。 */
    public String fetchDevices(String fields) throws Exception {
        HttpRequest req = HttpRequest.newBuilder()
                .uri(URI.create(BASE + "/devices?fields=" + fields))
                .header("X-Access-Key-Id", keyId)
                .header("X-Access-Key-Secret", keySecret)
                .timeout(Duration.ofSeconds(10))
                .GET()
                .build();

        HttpResponse<String> resp =
                http.send(req, HttpResponse.BodyHandlers.ofString());

        if (resp.statusCode() == 429) {
            // 听服务端给的秒数，别自己猜
            String after = resp.headers().firstValue("Retry-After").orElse("30");
            Thread.sleep(Long.parseLong(after) * 1000L);
            resp = http.send(req, HttpResponse.BodyHandlers.ofString());
        }

        if (resp.statusCode() != 200) {
            throw new IllegalStateException(
                    "开放 API 返回 " + resp.statusCode() + ": " + resp.body());
        }
        return resp.body();
    }
}