Question

我正在进行API调用以使所有设备都连接到本地服务器。然后，我试图遍历所有连接的设备，并进行更多调用以获取一些数据。我将如何遍历所有设备，而不仅仅是阵列中的第一个设备？

这是我存储在设备变量中的响应

[{“ connected”：true，“ functions”：[“ SetGain”，“ SetIntegTime”，“ SetInterrupt”，“ Enable”，“ begin”]，“ id”：“ 1f0039000547363339343638”，“ last_app”：null ，“ last_heard”：“ 2018-10-26T16：01：34.974Z”，“ last_ip_address”：“ :: ffff：10.10.10.5”，“名称”：“ actually-jail”，“ platform_id”：6，“ product_firmware_version “：65535，” product_id“：6，” status“：” normal“，” variables“：{” RawData“：” string“，” ColorTemp“：” string“，” Lux“：” string“，” SensorArray“ ：“ string”，“ Gain”：“ string”，“ IntegraTime”：“ string”，“ TemperatureC”：“ double”，“ TemperatureF”：“ double”，“ TemperatureK”：“ double”，“ TemperatureR”：“ double“}}，{” connected“：false，” functions“：null，” id“：” 3a003a001047047363333343437“，” last_app“：null，” status“：” normal“，” variables“：null}]

async function getDevices() {
      let devices = await  axios('http://10.10.10.1:8080/v1/devices/?access_token=687b5aee0b82f653c725570422dea5d37de6b65f')
      return this.devices = (devices.data[0].id)};


async function getVariables() {

  try {
    const devices = await getDevices();
    console.log(devices);
    const RawDataPromise = axios(API + devices + '/RawData/?access_token=' + Token);
    const ColorTempPromise = axios(API + devices + '/ColorTemp/?access_token=' + Token);
    const LuxPromise = axios(API + devices + '/Lux/?access_token=' + Token);
    const SensorArrayPromise = axios(API + devices + '/SensorArray/?access_token=' + Token);
    const GainPromise = axios(API + devices + '/Gain/?access_token=' + Token);
    const IntegraTimePromise = axios(API + devices + '/IntegraTime/?access_token=' + Token);
    const TemperatureCPromise = axios(API + devices + '/TemperatureC/?access_token=' + Token);
    const TemperatureFPromise = axios(API + devices + '/TemperatureF/?access_token=' + Token);
    const TemperatureKPromise = axios(API + devices + '/TemperatureK/?access_token=' + Token);
    const TemperatureRPromise = axios(API + devices + '/TemperatureR/?access_token=' + Token);
    const [RawData, ColorTemp, Lux, SensorArray, Gain, IntegraTime, TemperatureC, TemperatureF, TemperatureK, TemperatureR] = await Promise.all([RawDataPromise, ColorTempPromise, LuxPromise, SensorArrayPromise,GainPromise,IntegraTimePromise,TemperatureCPromise,TemperatureFPromise,TemperatureKPromise,TemperatureRPromise]);
    console.log(RawData.data.result, ColorTemp.data.result,Lux.data.result,SensorArray.data.result,Gain.data.result,IntegraTime.data.result,TemperatureC.data.result,TemperatureF.data.result,TemperatureK.data.result,TemperatureR.data.result);
  } catch (e) {
    console.error(e)
  }
}
getVariables();

Answer 1

创建一个包装器函数以从单个设备获取值，然后使用Promise.all（或Promise.map/如果使用bluebird，则每次调用）多次调用该函数；

async function getDevices() {
  let devices = await  axios('http://10.10.10.1:8080/v1/devices/?access_token=687b5aee0b82f653c725570422dea5d37de6b65f');

  return this.devices = (devices.data)
};

async function getForOneDevice(device) {
    // I've assumed here that 'devices' in your API calls was a typo, and was intended to be devices[0] (based on the question)
    const RawDataPromise = axios(API + device + '/RawData/?access_token=' + Token);
    const ColorTempPromise = axios(API + device + '/ColorTemp/?access_token=' + Token);
    const LuxPromise = axios(API + device + '/Lux/?access_token=' + Token);
    const SensorArrayPromise = axios(API + device + '/SensorArray/?access_token=' + Token);
    const GainPromise = axios(API + devices + '/Gain/?access_token=' + Token);
    const IntegraTimePromise = axios(API + device + '/IntegraTime/?access_token=' + Token);
    const TemperatureCPromise = axios(API + device + '/TemperatureC/?access_token=' + Token);
    const TemperatureFPromise = axios(API + device + '/TemperatureF/?access_token=' + Token);
    const TemperatureKPromise = axios(API + device + '/TemperatureK/?access_token=' + Token);
    const TemperatureRPromise = axios(API + device + '/TemperatureR/?access_token=' + Token);
    return Promise.all([RawDataPromise, ColorTempPromise, LuxPromise, SensorArrayPromise,GainPromise,IntegraTimePromise,TemperatureCPromise,TemperatureFPromise,TemperatureKPromise,TemperatureRPromise]);
}

async function getVariables() {
    try {
        const devices = await getDevices();
        console.log(devices);

        const promises = [];
        devices.forEach((device) => {
            promises.push(getForOneDevice(device.id));
        })

        const allResults = Promise.all(promises);
    } catch (e) {
        console.error(e)
    }
}

getVariables();

遍历数组以进行axios调用

1 个答案: