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Last modified by Devin Chen on 2025/06/06 14:03
From version 39.1
edited by Hunter
on 2023/03/17 15:50
Change comment: There is no comment for this version
To version 28.1
edited by Hunter
on 2022/11/21 17:01
Change comment: There is no comment for this version

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... ... @@ -349,104 +349,6 @@
349 349  end
350 350  {{/code}}
351 351  
352 -== **1.8 How to parse value from HTTP response body** ==
353 -
354 -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":
355 -
356 -(% style="text-align:center" %)
357 -[[image:InputHTTPparameter.png]]
358 -
359 -Then the response body would be like as following:
360 -
361 -{{code language="json"}}
362 -{
363 - "location": {
364 - "name": "Madrid",
365 - "region": "Madrid",
366 - "country": "Spain",
367 - "lat": 40.4,
368 - "lon": -3.68,
369 - "tz_id": "Europe/Madrid",
370 - "localtime_epoch": 1669022636,
371 - "localtime": "2022-11-21 10:23"
372 - },
373 - "current": {
374 - "last_updated_epoch": 1669022100,
375 - "last_updated": "2022-11-21 10:15",
376 - "temp_c": 13.0,
377 - "temp_f": 55.4,
378 - "is_day": 1,
379 - "condition": {
380 - "text": "Partly cloudy",
381 - "icon": "//cdn.weatherapi.com/weather/64x64/day/116.png",
382 - "code": 1003
383 - },
384 - "wind_mph": 11.9,
385 - "wind_kph": 19.1,
386 - "wind_degree": 210,
387 - "wind_dir": "SSW",
388 - "pressure_mb": 1015.0,
389 - "pressure_in": 29.97,
390 - "precip_mm": 0.0,
391 - "precip_in": 0.0,
392 - "humidity": 88,
393 - "cloud": 75,
394 - "feelslike_c": 10.8,
395 - "feelslike_f": 51.4,
396 - "vis_km": 10.0,
397 - "vis_miles": 6.0,
398 - "uv": 3.0,
399 - "gust_mph": 22.1,
400 - "gust_kph": 35.6
401 - }
402 -}
403 -{{/code}}
404 -
405 -(% class="wikigeneratedid" %)
406 -So we decode json into lua object to assign the value into addresses HDW6060(temperature), HDW7070(humidity), the code example like follows:
407 -
408 -{{code language="lua"}}
409 -local APIkey = '70faaecf926b4341b1974006221711'
410 -
411 -
412 -local http = require("socket.http")
413 -local json = require("json")
414 -
415 --- Send http.get request and return response result
416 -function getHttpsUrl(url)
417 - local result_table, code, headers, status = http.request(url)
418 - print("code:"..code)
419 - if code~= 200 then
420 - return
421 - else
422 - return result_table
423 - end
424 -end
425 -
426 -function sendAPI(key, city)
427 - local url = "http://api.weatherapi.com/v1/current.json?key="..key.."&q="..city.."&aqi=no"
428 - --local url = 'http://v-box.net'
429 - --local url = 'https://www.google.com/'
430 - --http://api.weatherapi.com/v1/current.json?key=70faaecf926b4341b1974006221711&q=Barcelona&aqi=no
431 - print("Get the link:"..url)
432 - local body = getHttpsUrl(url)
433 - --print(body)
434 - local jsonBody = json.decode(body)
435 - --print(jsonBody["current"]["temp_c"])
436 - --print(type(jsonBody["current"]["temp_c"]))
437 - --print(type(jsonBody["current"]["humidity"]))
438 - addr_setfloat("@HDW6060", jsonBody["current"]["temp_c"])
439 - addr_setword("@HDW7070", jsonBody["current"]["humidity"])
440 -end
441 -
442 -
443 -function Weather.main()
444 - local cityName = addr_getstring("@HDW5050",6)
445 - print("cityName: "..cityName)
446 - sendAPI(APIkey, cityName)
447 -end
448 -{{/code}}
449 -
450 450  = **2 V-Box connect with third part server** =
451 451  
452 452  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.
... ... @@ -465,9 +465,8 @@
465 465  
466 466  (% class="mark" %)2.If your server requires SSL certificate to log in,please use OpenCloud.Because only OpenCloud platform can support to upload certificate
467 467  
468 -{{info}}
370 +(% class="wikigeneratedid" %)
469 469  **✎Note: **Before program the script of MQTT, please make sure the server(MQTT broker) can be connected through MQTT Client tool.
470 -{{/info}}
471 471  
472 472  (% class="wikigeneratedid" %)
473 473  Tool link: **[[MQTT.fx>>http://mqttfx.jensd.de/index.php/download]]**
... ... @@ -515,13 +515,9 @@
515 515  --initialize mqtt
516 516  function mqtt_init()
517 517   print(string.format("mqtt init mqtt_url:%s mqtt_clientid:%s", MQTT_URL, MQTT_CLIENT_ID))
518 - if g_mq then
519 - mqtt.close() --Close mqtt object
520 - end
521 521   g_mq, err = mqtt.create(MQTT_URL, MQTT_CLIENT_ID) -- create mqtt object,and declare it as a global variable
522 522   if g_mq then
523 523   g_mq:on("message", mqtt_msg_callback) -- Register a callback for receiving messages
524 - g_mq:on("offline", mqtt_msg_offline) -- Register a callback for offline
525 525   print("mqtt init success")
526 526   else
527 527   print("mqtt init failed:", err)
... ... @@ -579,11 +579,9 @@
579 579   if g_mq:isconnected() then
580 580   send_data()
581 581   else
582 - --if exceed 5 sec not connect, reconnect once
583 - if os.time() - LAST_TIME > 5 then
479 + --if exceed 20 sec not connect, reconnect once
480 + if os.time() - LAST_TIME > 20 then
584 584   LAST_TIME = os.time()
585 - --reinitial the mqtt object
586 - mqtt_init()
587 587   --connect to mqtt or reconnect
588 588   mqtt_connect()
589 589   end
... ... @@ -1163,20 +1163,35 @@
1163 1163  
1164 1164  {{code language="java"}}
1165 1165  {
1061 +
1166 1166    "Version": "2012-10-17",
1063 +
1167 1167    "Statement": [
1065 +
1168 1168      {
1067 +
1169 1169        "Effect": "Allow",
1069 +
1170 1170        "Action": [
1071 +
1171 1171          "iot:Connect",
1073 +
1172 1172          "iot:Publish",
1075 +
1173 1173          "iot:Subscribe",
1077 +
1174 1174          "iot:Receive",
1079 +
1175 1175          "greengrass:Discover"
1081 +
1176 1176        ],
1083 +
1177 1177        "Resource": "*"
1085 +
1178 1178      }
1087 +
1179 1179    ]
1089 +
1180 1180  }
1181 1181  {{/code}}
1182 1182  
... ... @@ -1241,190 +1241,185 @@
1241 1241  
1242 1242  [[image:image-20220709165402-20.png]]
1243 1243  
1244 -{{info}}
1245 -**✎Note:** Before using the following demo script, please make sure the V-Box firmware is newer than 22110701
1246 -{{/info}}
1247 -
1248 -{{code language="lua"}}
1249 1249  sprint = print
1250 1250  
1251 ---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)
1156 +~-~-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)
1252 1252  
1253 1253  local MQTT_URL, MQTT_CLIENTID, MQTT_CFG, MQTT_LWT, MQTT_CART = mqtt.setup_cfg()
1254 1254  
1255 ---publish to topics
1160 +~-~-publish to topics
1256 1256  
1257 1257  local pub_RE_TOPIC = string.format('TEST')
1258 1258  
1259 ---Subscribe topics
1164 +~-~-Subscribe topics
1260 1260  
1261 1261  local Subscribe_RE_TOPIC1 = string.format('TEST')
1262 1262  
1263 ---variable
1168 +~-~-variable
1264 1264  
1265 1265  local last_time = 0
1266 1266  
1267 ---Timing main function
1172 +~-~-Timing main function
1268 1268  
1269 1269  function aws.main()
1270 1270  
1271 - sprint(os.date("%Y-%m-%d %H:%M %S", os.time()) .. " aws.main start")
1176 + sprint(os.date("%Y-%m-%d %H:%M %S", os.time()) .. " aws.main start")
1272 1272  
1273 - if g_mq then
1178 + if g_mq then
1274 1274  
1275 - if g_mq:isconnected() then
1180 + if g_mq:isconnected() then
1276 1276  
1277 - send_Data()
1182 + send_Data()
1278 1278  
1279 - else
1184 + else
1280 1280  
1281 - if os.time() - last_time > 5 then
1186 + if os.time() - last_time > 5 then
1282 1282  
1283 - last_time = os.time()
1188 + last_time = os.time()
1284 1284  
1285 - mymqtt_connect()
1190 + mymqtt_connect()
1286 1286  
1287 - end
1288 -
1289 1289   end
1290 1290  
1291 - else
1194 + end
1292 1292  
1293 - mymqtt_init()
1196 + else
1294 1294  
1295 - end
1198 + mymqtt_init()
1296 1296  
1297 - sprint(os.date("%Y-%m-%d %H:%M %S", os.time()) .. " aws.main end")
1200 + end
1298 1298  
1202 + sprint(os.date("%Y-%m-%d %H:%M %S", os.time()) .. " aws.main end")
1203 +
1299 1299  end
1300 1300  
1301 1301  
1207 +~-~- Initialize MQTT
1302 1302  
1303 --- Initialize MQTT
1304 -
1305 1305  function mymqtt_init()
1306 1306  
1307 - sprint(string.format("mqtt init mqtt_url:%s mqtt_clientid:%s", MQTT_URL, MQTT_CLIENTID))
1211 + sprint(string.format("mqtt init mqtt_url:%s mqtt_clientid:%s", MQTT_URL, MQTT_CLIENTID))
1308 1308  
1309 - g_mq, err = mqtt.create(MQTT_URL, MQTT_CLIENTID, 1) -- Create the object and declare it as a global variable, 1 means using the domain to connect
1213 + g_mq, err = mqtt.create(MQTT_URL, MQTT_CLIENTID) ~-~- Create the object and declare it as a global variable
1310 1310  
1311 - if g_mq then
1215 + if g_mq then
1312 1312  
1313 - g_mq:on("message", mymqtt_msg_callback) -- Register to receive message callbacks
1217 + g_mq:on("message", mymqtt_msg_callback) ~-~- Register to receive message callbacks
1314 1314  
1315 - sprint("mqtt init success")
1219 + sprint("mqtt init success")
1316 1316  
1317 - else
1221 + else
1318 1318  
1319 - sprint("mqtt init failed:", err)
1223 + sprint("mqtt init failed:", err)
1320 1320  
1321 - end
1225 + end
1322 1322  
1323 1323  end
1324 1324  
1325 --- Connect to MQTT server
1229 +~-~- Connect to MQTT server
1326 1326  
1327 1327  function mymqtt_connect()
1328 1328  
1329 - sprint("mqtt connecting...")
1233 + sprint("mqtt connecting...")
1330 1330  
1331 - local stat, err = g_mq:connect(MQTT_CFG,MQTT_LWT, MQTT_CART)
1235 + local stat, err = g_mq:connect(MQTT_CFG,MQTT_LWT, MQTT_CART)
1332 1332  
1333 - if stat == nil then
1237 + if stat == nil then
1334 1334  
1335 - sprint("mqtt connect failed:", err)
1239 + sprint("mqtt connect failed:", err)
1336 1336  
1337 - return
1241 + return
1338 1338  
1339 - else
1243 + else
1340 1340  
1341 - sprint("mqtt connected")
1245 + sprint("mqtt connected")
1342 1342  
1343 - end
1247 + end
1344 1344  
1345 - g_mq:subscribe(Subscribe_RE_TOPIC1, 0)
1249 + g_mq:subscribe(TEST, 0)
1346 1346  
1347 1347  end
1348 1348  
1349 --- Receive MQTT message callback function
1253 +~-~- Receive MQTT message callback function
1350 1350  
1351 1351  function mymqtt_msg_callback(topic, msg)
1352 1352  
1353 - print("topic:",topic)
1257 + print("topic:",topic)
1354 1354  
1355 - print("revdata:",msg)
1259 + print("revdata:",msg)
1356 1356  
1357 - local revData = json.decode(msg)
1261 + local revData = json.decode(msg)
1358 1358  
1359 - print (revData)
1263 + print (revData)
1360 1360  
1361 - if topic == Subscribe_RE_TOPIC1 then --Process topic information subscribed from the cloud
1265 + if topic == Subscribe_RE_TOPIC1 then ~-~-Process topic information subscribed from the cloud
1362 1362  
1363 - if string.match(topic,Subscribe_RE_TOPIC1) then
1267 +if string.match(topic,Subscribe_RE_TOPIC1) then
1364 1364  
1365 - --if revData ~= nil then
1269 + ~-~-if revData ~~= nil then
1366 1366  
1367 - for k,v in pairs (revData) do
1271 + for k,v in pairs (revData) do
1368 1368  
1369 - print("printing revdata after kv here")
1273 + print("printing revdata after kv here")
1370 1370  
1371 - print (k,v)
1275 + print (k,v)
1372 1372  
1373 - end
1277 + end
1374 1374  
1375 - print ("current state is",fanstate)
1279 + print ("current state is",fanstate)
1376 1376  
1377 - --end
1281 + ~-~-end
1378 1378  
1379 - end
1283 +end
1380 1380  
1381 - end
1285 +end
1382 1382  
1383 1383  end
1384 1384  
1385 1385  
1290 +~-~-Get real-time data
1386 1386  
1387 ---Get real-time data
1388 -
1389 1389  function getData()
1390 1390  
1391 - local jdata = {}
1294 + local jdata = {}
1392 1392  
1393 - local addr = bns_get_alldata()
1296 + local addr = bns_get_alldata()
1394 1394  
1395 - print(json.encode(addr))
1298 + print(json.encode(addr))
1396 1396  
1397 - for i,v in pairs(addr) do
1300 + for i,v in pairs(addr) do
1398 1398  
1399 - if v[2] == 1 then
1302 + if v[2] == 1 then
1400 1400  
1401 - jdata[v[3]] = v[4]
1304 + jdata[v[3]] = v[4]
1402 1402  
1403 - end
1306 + end
1404 1404  
1405 - end
1308 + end
1406 1406  
1407 - return jdata
1310 + return jdata
1408 1408  
1409 1409  end
1410 1410  
1411 ---send data
1314 +~-~-send data
1412 1412  
1413 1413  function send_Data()
1414 1414  
1415 - local pub_data =
1416 - {
1417 - 123
1418 - }
1318 + local pub_data =
1419 1419  
1320 + {
1321 +
1322 +123
1323 +
1324 +}
1325 +
1420 1420  sprint(json.encode(pub_data))
1421 1421  
1422 1422  print("..........",pub_RE_TOPIC)
1423 1423  
1424 - return g_mq:publish(pub_RE_TOPIC, json.encode(pub_data), 0, 0)
1330 + return g_mq:publish(pub_RE_TOPIC, json.encode(pub_data), 0, 0)
1425 1425  
1426 1426  end
1427 -{{/code}}
1428 1428  
1429 1429  Get message in AWS
1430 1430  
InputHTTPparameter.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Hunter
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