http - 从 Loriot 向谷歌应用脚​​本发布状态码为 302 的消息时出错

Question

我正在尝试建立一个 LoRa 通信网络。

我有一个网关模块 RHF0M301-915，PRI 2 Bridge RHF4T002 和树莓派 3 B（作为 Lora 网关）；带 GPS 的 seeeduino 板，RHF76-052AM。

两者都在 Loriot 服务器中注册。

我设法通过 ABP 方法将来自 seeeduino 板的 GPS 数据发送到 Loriot 服务器的仪表板。我想将数据输出到我的 android 移动应用程序，以向用户显示地图上的端节点在哪里。

我选择使用 HTTP Push（Loriot 服务器提供的输出选项之一）。

我遵循了这些准则。

我能够将 GPS 数据发送到 Loriot 服务器，但 HTTP 推送无法将数据推送到指南中创建的谷歌表格。我在 Loriot 服务器的日志中收到以下错误消息：

发布消息时出错 | "err":"将消息发布到 \" https://script.google.com/macros/s/AKfycbyUaIl4t8PZxoXswCW2kc0I-ZfUl5DVucsD0CwtW3Rn4YAP2qpo/exec \" 失败，状态码为 302","appid":3195667320,"url":" https ://script.google.com/macros/s/AKfycbyUaIl4t8PZxoXswCW2kc0I-ZfUl5DVucsD0CwtW3Rn4YAP2qpo/exec ","seqno":132,"deveui":"4786C58B003C002A","data":{"statusCode":302},"message": “将消息发布到 \” https://script.google.com/macros/s/AKfycbyUaIl4t8PZxoXswCW2kc0I-ZfUl5DVucsD0CwtW3Rn4YAP2qpo/exec \“失败，状态码为 302”，“targetUrl”：” https://script.google。

以下代码将数据发送到谷歌表：

// 2017 by Daniel Eichhorn, https://blog.squix.org
// Inspired by https://gist.github.com/bmcbride/7069aebd643944c9ee8b
// Create or open an existing Sheet and click Tools > Script editor and enter the code below
// 1. Enter sheet name where data is to be written below
var SHEET_NAME = "Sheet1";
// 2. Publish > Deploy as web app
//    - enter Project Version name and click 'Save New Version'
//    - set security level and enable service (most likely execute as 'me' and access 'anyone, even anonymously)
// 3. Copy the 'Current web app URL' and post this in your form/script action

var SCRIPT_PROP = PropertiesService.getScriptProperties(); // new property service

// If you don't want to expose either GET or POST methods you can comment out the appropriate function
function doGet(e){
  return handleResponse(e);
}

function doPost(e){
  return handleResponse(e);
}

function handleResponse(e) {
  Logger.log("arrived in handleResponse");
  var jsonData = JSON.parse(e.postData.contents);
  
  try {
    // next set where we write the data - you could write to multiple/alternate destinations
    var doc = SpreadsheetApp.openById(SCRIPT_PROP.getProperty("key"));
    var sheet = doc.getSheetByName(SHEET_NAME); 

    var nextRow = sheet.getLastRow()+1; // get next row
    var row = [];
    var headerRow = [];

    row.push(jsonData.rssi);
    row.push(jsonData.seqno);
    row.push(jsonData.data);
    var humidityHex = jsonData.data.substring(0, 2);
    row.push(parseInt(humidityHex, 16));
    var tempHex = jsonData.data.substring(2, 4);
    row.push(parseInt(tempHex, 16) - 100);
    var latHex = jsonData.data.substring(4, 10);
    var lonHex = jsonData.data.substring(10, 16);
    var latEncoded = parseInt(latHex, 16);
    var lonEncoded = parseInt(lonHex, 16);
    row.push((latEncoded / 8388606) * 90);
    row.push((lonEncoded / 8388606) * 180);

    row.push(jsonData.freq);
    row.push(jsonData.ack);
    row.push(jsonData.fcnt);
    row.push(jsonData.dr);
    row.push(jsonData.bat);
    row.push(jsonData.port);
    row.push(jsonData.snr);
    row.push(jsonData.EUI);
    row.push(jsonData.cmd);
    row.push(jsonData.ts);

    // more efficient to set values as [][] array than individually
    sheet.getRange(nextRow, 1, 1, row.length).setValues([row]);
    // return json success results
    return ContentService
          .createTextOutput(JSON.stringify({"result":"success", "row": nextRow}))
          .setMimeType(ContentService.MimeType.JSON);
  } catch(e) {
    // if error return this
    return ContentService
          .createTextOutput(JSON.stringify({"result":"error", "error": e}))
          .setMimeType(ContentService.MimeType.JSON);
  } 
}

这是命令 seeeduino 板向 Loriot 服务器发送 gps 数据的代码。

#include <TinyGPS++.h>
#include <LoRaWan.h>
#include "DHT.h"


TinyGPSPlus gps;
#define DHTPIN A0 // what pin we're connected to

#define DHTTYPE DHT11 // DHT 11
 
DHT dht(DHTPIN, DHTTYPE);
char buffer[256];


void setup(void)
{
    SerialUSB.begin(115200);
    Serial.begin(9600);
    
    lora.init();
    
    memset(buffer, 0, 256);
    lora.getVersion(buffer, 256, 1);
    SerialUSB.print(buffer); 
    
    memset(buffer, 0, 256);
    lora.getId(buffer, 256, 1);
    SerialUSB.print(buffer);
    SerialUSB.println("That was the id");
    // void setId(char *DevAddr, char *DevEUI, char *AppEUI);
    lora.setId("00C4E57D", "4786C58B003C002A", "526973696E674846");
    // setKey(char *NwkSKey, char *AppSKey, char *AppKey);
    lora.setKey("2B7E151628AED2A6ABF7158809CF4F3C", "2B7E151628AED2A6ABF7158809CF4F3C", "8413360695ABE271EB2A515386F0093E ");
    
    lora.setDeciveMode(LWOTAA);
    lora.setDataRate(DR2, AS923);
    
    lora.setChannel(0, 923.0);
    lora.setChannel(1, 923.2);
    lora.setChannel(2, 923.4);
    lora.setChannel(3, 923.6);
    lora.setChannel(4, 923.8);
    lora.setChannel(5, 924.0);
    lora.setChannel(6, 924.2);
    lora.setChannel(7, 924.4);
    
    lora.setReceiceWindowFirst(2, 923.0);
    lora.setReceiceWindowSecond(923.2, DR2);
    lora.setAdaptiveDataRate(false);
    
    lora.setPower(10);
    
    while(!lora.setOTAAJoin(JOIN, 20000));
    SerialUSB.println("After OTAA join");

    // Start DHT sensor
    dht.begin();
}

void loop(void)
{   
    while (Serial.available() > 0) {
      gps.encode(Serial.read());
    }
    if (gps.altitude.isUpdated()) {
      SerialUSB.println(gps.altitude.meters());
      SerialUSB.print("LAT=");  SerialUSB.println(gps.location.lat(), 6);
      SerialUSB.print("LONG="); SerialUSB.println(gps.location.lng(), 6);
      SerialUSB.print("ALT=");  SerialUSB.println(gps.altitude.meters());
      long latEncoded = (gps.location.lat() * 8388606) / 90;
      long lonEncoded = (gps.location.lng() * 8388606) / 180;
      SerialUSB.print("Lat encoded: "); 
      SerialUSB.println(latEncoded);
      SerialUSB.print("Lon encoded: "); 
      SerialUSB.println(lonEncoded);
      float h = dht.readHumidity();
      float t = dht.readTemperature();
      SerialUSB.print("Humidity is: ");
      SerialUSB.print(h);
      SerialUSB.print(", Temperature: ");
      SerialUSB.print(t);
      bool result = false;
      byte data[10] = {0};
      data[0] = h;
      data[1] = t + 100;
      data[2] = (byte) (latEncoded >> 16);
      data[3] = (byte) (latEncoded >> 8);
      data[4] = (byte) latEncoded;
      
      data[5] = (byte) (lonEncoded >> 16);
      data[6] = (byte) (lonEncoded >> 8);
      data[7] = (byte) lonEncoded;

      result = lora.transferPacket(data, 10);
      //result = lora.transferPacket(data, 10, 10);
      
      if(result)
      {
          short length;
          short rssi;
          
          memset(buffer, 0, 256);
          length = lora.receivePacket(buffer, 256, &rssi);
          
          if(length)
          {
              SerialUSB.print("Length is: ");
              SerialUSB.println(length);
              SerialUSB.print("RSSI is: ");
              SerialUSB.println(rssi);
              SerialUSB.print("Data is: ");
              for(unsigned char i = 0; i < length; i ++)
              {
                  SerialUSB.print("0x");
                  SerialUSB.print(buffer[i], HEX);
                  SerialUSB.print(" ");
              }
              SerialUSB.println();
          }
          delay(1000 * 60 * 5);
      }
    }
    
}

如何处理状态码 302，我知道这与将我使用的目标 URL 重定向到某个临时 URL 有关。但我不知道如何处理它。