-- Get weather from openweathermap.org
-- Modified by John Longworth - June 2017

city ="2639310"   -- Put your own city code here

apid = "74563a891225dce1a5796d1faddc5e41" -- Put you own API code here

conn = nil
conn=net.createConnection(net.TCP, 0) 

conn:on("connection", function(conn, payload) 
    print("\n Connected to openweathermap.org")
    conn:send("GET /data/2.5/weather?id="..city.."&APPID="..apid.."&units=metric"
    .." HTTP/1.1\r\n" 
    .."Host: api.openweathermap.org\r\n" 
    .."Connection: close\r\n"
    .."Accept: */*\r\n" 
    .."User-Agent: Mozilla/4.0 (compatible; esp8266 Lua; Windows NT 5.1)\r\n" 
    .."\r\n")
end) 
 
conn:on("receive", function(conn, payload)     
    payload = string.match(payload, "{.*}") -- Select json part of payload
    --print(payload)
    if payload ~= nil then      
        forecast = sjson.decode(payload)  -- Decode json string 
        print_weather()     
    else                       
        print("Connection failed")  
    end     
end)       

function print_weather()
    print("Weather for")      
    print(forecast.name.." "..forecast.sys.country) 
    print("Long "..forecast.coord.lon.." Lat "..forecast.coord.lat)
    print("ID          "..forecast.id)
    print("Temperature "..forecast.main.temp.." °C")                      
    print("Max Temp    "..forecast.main.temp_max.." °C")
    print("Min Temp    "..forecast.main.temp_min.." °C")                      
    print("Pressure    "..forecast.main.pressure.." hPa")                    
    print("Humidity    "..forecast.main.humidity.."%")                      
    print("Visibility  "..forecast.visibility.." m")
    print("id          "..forecast.weather[1].id)    
    print("Main        "..forecast.weather[1].main)
    print("Description "..forecast.weather[1].description)
    print("Windspeed   "..forecast.wind.speed)
    print("Wind dir    "..forecast.wind.deg)
    st = rtctime.epoch2cal(forecast.sys.sunrise)
    print("Sunrise     "..st.hour.."."..st.min)
    st = rtctime.epoch2cal(forecast.sys.sunset)
    print("Sunset      "..st.hour.."."..st.min)
    st = rtctime.epoch2cal(forecast.dt)
    print("Date        "..st.hour.."."..st.min,st.day.."/"..st.mon.."/"..st.year)
end

conn:connect(80,'api.openweathermap.org')