Changes for page 2 Script

Last modified by Devin Chen on 2025/06/06 14:03

From 27.1 to 28.1 From 33.1 to 34.1

From version 28.1

edited by Hunter
on 2022/11/21 17:01

Change comment: There is no comment for this version

To version 33.1

edited by Hunter
on 2022/11/22 15:38

Change comment: There is no comment for this version

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@@ -349,6 +349,104 @@
  end
  {{/code}}
++== **1.8 How to parse value from HTTP response body** ==
++
++This example use [[https:~~/~~/www.weatherapi.com/>>https://www.weatherapi.com/]] as example, to show how to parse value from HTTP response body. When we input the city name into address "@HDW5050":
++
++(% style="text-align:center" %)
++[[image:InputHTTPparameter.png]]
++
++Then the response body would be like as following:
++
++{{code language="json"}}
++{
++    "location": {
++        "name": "Madrid",
++        "region": "Madrid",
++        "country": "Spain",
++        "lat": 40.4,
++        "lon": -3.68,
++        "tz_id": "Europe/Madrid",
++        "localtime_epoch": 1669022636,
++        "localtime": "2022-11-21 10:23"
++    },
++    "current": {
++        "last_updated_epoch": 1669022100,
++        "last_updated": "2022-11-21 10:15",
++        "temp_c": 13.0,
++        "temp_f": 55.4,
++        "is_day": 1,
++        "condition": {
++            "text": "Partly cloudy",
++            "icon": "//cdn.weatherapi.com/weather/64x64/day/116.png",
++            "code": 1003
++        },
++        "wind_mph": 11.9,
++        "wind_kph": 19.1,
++        "wind_degree": 210,
++        "wind_dir": "SSW",
++        "pressure_mb": 1015.0,
++        "pressure_in": 29.97,
++        "precip_mm": 0.0,
++        "precip_in": 0.0,
++        "humidity": 88,
++        "cloud": 75,
++        "feelslike_c": 10.8,
++        "feelslike_f": 51.4,
++        "vis_km": 10.0,
++        "vis_miles": 6.0,
++        "uv": 3.0,
++        "gust_mph": 22.1,
++        "gust_kph": 35.6
++    }
++}
++{{/code}}
++
++(% class="wikigeneratedid" %)
++So we decode json into lua object to assign the value into addresses HDW6060(temperature), HDW7070(humidity), the code example like follows:
++
++{{code language="lua"}}
++local APIkey = '70faaecf926b4341b1974006221711'
++
++
++local http = require("socket.http")
++local json = require("json")
++
++-- Send http.get request and return response result
++function getHttpsUrl(url)
++    local result_table, code, headers, status = http.request(url)
++    print("code:"..code)
++    if code~= 200 then
++        return
++    else
++        return result_table
++    end
++end
++
++function sendAPI(key, city)
++    local url = "http://api.weatherapi.com/v1/current.json?key="..key.."&q="..city.."&aqi=no"
++    --local url = 'http://v-box.net'
++    --local url = 'https://www.google.com/'
++    --http://api.weatherapi.com/v1/current.json?key=70faaecf926b4341b1974006221711&q=Barcelona&aqi=no
++    print("Get the link:"..url)
++    local body = getHttpsUrl(url)
++    --print(body)
++    local jsonBody = json.decode(body)
++    --print(jsonBody["current"]["temp_c"])
++    --print(type(jsonBody["current"]["temp_c"]))
++    --print(type(jsonBody["current"]["humidity"]))
++    addr_setfloat("@HDW6060", jsonBody["current"]["temp_c"])
++    addr_setword("@HDW7070", jsonBody["current"]["humidity"])
++end
++
++
++function Weather.main()
++    local cityName = addr_getstring("@HDW5050",6)
++    print("cityName: "..cityName)
++    sendAPI(APIkey, cityName)
++end
++{{/code}}
++
  = **2 V-Box connect with third part server** =
  V-Box have two mode.One is for V-Net,User need to use WECON server to store data.We call this V-NET platform.
@@ -1058,35 +1058,20 @@
  {{code language="java"}}
  {
--
    "Version": "2012-10-17",
--
    "Statement": [
--
      {
--
        "Effect": "Allow",
--
        "Action": [
--
          "iot:Connect",
--
          "iot:Publish",
--
          "iot:Subscribe",
--
          "iot:Receive",
--
          "greengrass:Discover"
--
        ],
--
        "Resource": "*"
--
      }
--
    ]
--
  }
  {{/code}}
@@ -1151,185 +1151,186 @@
  [[image:image-20220709165402-20.png]]
++{{code language="lua"}}
  sprint = print
--~-~-Cloud mode interface to obtain the MQTT information configured by the cloud platform: (5 returns, namely the server address, client ID, connection table, last word table, certificate table)
++--Cloud mode interface to obtain the MQTT information configured by the cloud platform: (5 returns, namely the server address, client ID, connection table, last word table, certificate table)
  local MQTT_URL, MQTT_CLIENTID, MQTT_CFG, MQTT_LWT, MQTT_CART = mqtt.setup_cfg()
--~-~-publish to topics
++--publish to topics
  local pub_RE_TOPIC = string.format('TEST')
--~-~-Subscribe topics
++--Subscribe topics
  local Subscribe_RE_TOPIC1 = string.format('TEST')
--~-~-variable
++--variable
  local last_time = 0
--~-~-Timing main function
++--Timing main function
  function aws.main()
--   sprint(os.date("%Y-%m-%d %H:%M %S", os.time()) .. " aws.main start")
++            sprint(os.date("%Y-%m-%d %H:%M %S", os.time()) .. " aws.main start")
--   if g_mq then
++            if g_mq then
--        if g_mq:isconnected() then
++                if g_mq:isconnected() then
--            send_Data()
++                    send_Data()
--        else
++                else
--            if os.time() - last_time > 5 then
++                if os.time() - last_time > 5 then
--                last_time = os.time()
++                    last_time = os.time()
--                mymqtt_connect()
++                    mymqtt_connect()
++                end
++
              end
--        end
++            else
--    else
++                mymqtt_init()
--        mymqtt_init()
++            end
--    end
++            sprint(os.date("%Y-%m-%d %H:%M %S", os.time()) .. " aws.main end")
--    sprint(os.date("%Y-%m-%d %H:%M %S", os.time()) .. " aws.main end")
--
  end
--~-~- Initialize MQTT
++-- Initialize MQTT
++
  function mymqtt_init()
--    sprint(string.format("mqtt init mqtt_url:%s mqtt_clientid:%s", MQTT_URL, MQTT_CLIENTID))
++                sprint(string.format("mqtt init mqtt_url:%s mqtt_clientid:%s", MQTT_URL, MQTT_CLIENTID))
--    g_mq, err = mqtt.create(MQTT_URL, MQTT_CLIENTID) ~-~- Create the object and declare it as a global variable
++                g_mq, err = mqtt.create(MQTT_URL, MQTT_CLIENTID) -- Create the object and declare it as a global variable
--    if g_mq then
++                if g_mq then
--        g_mq:on("message", mymqtt_msg_callback) ~-~- Register to receive message callbacks
++                    g_mq:on("message", mymqtt_msg_callback) -- Register to receive message callbacks
--        sprint("mqtt init success")
++                    sprint("mqtt init success")
--    else
++                else
--        sprint("mqtt init failed:", err)
++                    sprint("mqtt init failed:", err)
--    end
++                end
  end
--~-~- Connect to MQTT server
++-- Connect to MQTT server
  function mymqtt_connect()
--    sprint("mqtt connecting...")
++                sprint("mqtt connecting...")
--    local stat, err = g_mq:connect(MQTT_CFG,MQTT_LWT, MQTT_CART)
++                local stat, err = g_mq:connect(MQTT_CFG,MQTT_LWT, MQTT_CART)
--    if stat == nil then
++                if stat == nil then
--        sprint("mqtt connect failed:", err)
++                    sprint("mqtt connect failed:", err)
--        return
++                    return
--    else
++                else
--        sprint("mqtt connected")
++                    sprint("mqtt connected")
--    end
++                end
--    g_mq:subscribe(TEST, 0)
++                g_mq:subscribe(TEST, 0)
  end
--~-~- Receive MQTT message callback function
++-- Receive MQTT message callback function
  function mymqtt_msg_callback(topic, msg)
--    print("topic:",topic)
++                print("topic:",topic)
--    print("revdata:",msg)
++                print("revdata:",msg)
--    local revData = json.decode(msg)
++                local revData = json.decode(msg)
--    print (revData)
++                print (revData)
-- if topic == Subscribe_RE_TOPIC1 then ~-~-Process topic information subscribed from the cloud
++                if topic == Subscribe_RE_TOPIC1 then --Process topic information subscribed from the cloud
--if string.match(topic,Subscribe_RE_TOPIC1) then
++                    if string.match(topic,Subscribe_RE_TOPIC1) then
--    ~-~-if revData ~~= nil then
++                        --if revData ~= nil then
--        for k,v in pairs (revData) do
++                        for k,v in pairs (revData) do
--            print("printing revdata after kv here")
++                            print("printing revdata after kv here")
--            print (k,v)
++                            print (k,v)
--        end
++                        end
--        print ("current state is",fanstate)
++                    print ("current state is",fanstate)
--    ~-~-end
++                        --end
--end
++                    end
--end
++                end
  end
--~-~-Get real-time data
++--Get real-time data
++
  function getData()
--    local jdata = {}
++                local jdata = {}
--    local addr = bns_get_alldata()
++                local addr = bns_get_alldata()
--    print(json.encode(addr))
++                print(json.encode(addr))
--    for i,v in pairs(addr) do
++                for i,v in pairs(addr) do
--        if v[2] == 1 then
++                    if v[2] == 1 then
--           jdata[v[3]] = v[4]
++                        jdata[v[3]] = v[4]
--        end
++                    end
--    end
++                end
--    return jdata
++                return jdata
  end
--~-~-send data
++--send data
  function send_Data()
--    local pub_data =
++                local pub_data =
++                {
++                    123
++                }
--    {
--
--123
--
--}
--
  sprint(json.encode(pub_data))
  print("..........",pub_RE_TOPIC)
--    return g_mq:publish(pub_RE_TOPIC, json.encode(pub_data), 0, 0)
++                return g_mq:publish(pub_RE_TOPIC, json.encode(pub_data), 0, 0)
  end
++{{/code}}
  Get message in AWS

InputHTTPparameter.png

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...	...	@@ -1,0 +1,1 @@
	1	+XWiki.Hunter

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...	...	@@ -1,0 +1,1 @@
	1	+17.9 KB

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