Parse json data in C#

Question

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How can we parse the following json format.

"metadata": 
	{
		"name": "", 
		"latitude": 51.18, 
		"longitude": 3.81, 
		"height": 9, 
		"timezone_abbrevation": "CEST", 
		"utc_timeoffset": 2.00, 
		"modelrun_utc": "4716-04-07 12:00"
	}, 
	"units": 
	{
		"time": "YYYY-MM-DD hh:mm", 
		"pressure": "hPa", 
		"relativehumidity": "percent", 
		"temperature": "C", 
		"precipitation": "mm", 
		"winddirection": "degree", 
		"windspeed": "ms-1"
	}, 
	"history_1h": 
	{
		"time": ["2022-04-01 00:00", "2022-04-01 01:00", "2022-04-01 02:00", "2022-04-01 03:00", "2022-04-01 04:00", "2022-04-01 05:00", "2022-04-01 06:00", "2022-04-01 07:00", "2022-04-01 08:00", "2022-04-01 09:00", "2022-04-01 10:00", "2022-04-01 11:00", "2022-04-01 12:00", "2022-04-01 13:00", "2022-04-01 14:00", "2022-04-01 15:00", "2022-04-01 16:00", "2022-04-01 17:00", "2022-04-01 18:00", "2022-04-01 19:00", "2022-04-01 20:00", "2022-04-01 21:00", "2022-04-01 22:00", "2022-04-01 23:00", "2022-04-02 00:00", "2022-04-02 01:00", "2022-04-02 02:00", "2022-04-02 03:00", "2022-04-02 04:00", "2022-04-02 05:00", "2022-04-02 06:00", "2022-04-02 07:00", "2022-04-02 08:00", "2022-04-02 09:00", "2022-04-02 10:00", "2022-04-02 11:00", "2022-04-02 12:00", "2022-04-02 13:00", "2022-04-02 14:00", "2022-04-02 15:00", "2022-04-02 16:00", "2022-04-02 17:00", "2022-04-02 18:00", "2022-04-02 19:00", "2022-04-02 20:00", "2022-04-02 21:00", "2022-04-02 22:00", "2022-04-02 23:00", "2022-04-03 00:00", "2022-04-03 01:00", "2022-04-03 02:00", "2022-04-03 03:00", "2022-04-03 04:00", "2022-04-03 05:00", "2022-04-03 06:00", "2022-04-03 07:00", "2022-04-03 08:00", "2022-04-03 09:00", "2022-04-03 10:00", "2022-04-03 11:00", "2022-04-03 12:00", "2022-04-03 13:00", "2022-04-03 14:00", "2022-04-03 15:00", "2022-04-03 16:00", "2022-04-03 17:00", "2022-04-03 18:00", "2022-04-03 19:00", "2022-04-03 20:00", "2022-04-03 21:00", "2022-04-03 22:00", "2022-04-03 23:00", "2022-04-04 00:00", "2022-04-04 01:00", "2022-04-04 02:00", "2022-04-04 03:00", "2022-04-04 04:00", "2022-04-04 05:00", "2022-04-04 06:00", "2022-04-04 07:00", "2022-04-04 08:00", "2022-04-04 09:00", "2022-04-04 10:00", "2022-04-04 11:00", "2022-04-04 12:00", "2022-04-04 13:00", "2022-04-04 14:00", "2022-04-04 15:00", "2022-04-04 16:00", "2022-04-04 17:00", "2022-04-04 18:00", "2022-04-04 19:00", "2022-04-04 20:00", "2022-04-04 21:00", "2022-04-04 22:00", "2022-04-04 23:00", "2022-04-05 00:00", "2022-04-05 01:00", "2022-04-05 02:00", "2022-04-05 03:00", "2022-04-05 04:00", "2022-04-05 05:00", "2022-04-05 06:00", "2022-04-05 07:00", "2022-04-05 08:00", "2022-04-05 09:00", "2022-04-05 10:00", "2022-04-05 11:00", "2022-04-05 12:00", "2022-04-05 13:00", "2022-04-05 14:00", "2022-04-05 15:00", "2022-04-05 16:00", "2022-04-05 17:00", "2022-04-05 18:00", "2022-04-05 19:00", "2022-04-05 20:00", "2022-04-05 21:00", "2022-04-05 22:00", "2022-04-05 23:00"], 
		"sealevelpressure": [1000, 1000, 1001, 1002, 1002, 1003, 1004, 1006, 1007, 1008, 1009, 1010, 1011, 1012, 1010, 1011, 1011, 1012, 1012, 1013, 1014, 1015, 1016, 1017, 1017, 1017, 1017, 1017, 1018, 1018, 1018, 1019, 1020, 1021, 1021, 1022, 1022, 1022, 1020, 1020, 1021, 1021, 1021, 1022, 1023, 1023, 1024, 1025, 1025, 1025, 1026, 1026, 1026, 1026, 1026, 1027, 1027, 1027, 1027, 1027, 1027, 1027, 1024, 1024, 1024, 1024, 1023, 1024, 1024, 1024, 1023, 1023, 1023, 1022, 1021, 1021, 1020, 1018, 1017, 1017, 1016, 1015, 1014, 1013, 1012, 1011, 1009, 1009, 1008, 1008, 1007, 1007, 1007, 1007, 1007, 1007, 1007, 1007, 1007, 1008, 1007, 1007, 1007, 1008, 1008, 1009, 1009, 1009, 1010, 1010, 1009, 1008, 1008, 1008, 1007, 1007, 1008, 1007, 1007, 1008], 
		"temperature": [2.13, 2.48, 0.64, 0.70, 0.29, -0.11, -0.52, -0.84, -0.72, 0.44, 0.81, 1.26, 2.34, 3.85, 4.34, 4.62, 5.43, 5.86, 5.56, 5.23, 4.27, 3.35, 2.29, 1.34, 0.91, 0.66, 0.60, 0.08, -0.26, -0.87, -1.57, -2.08, -0.46, 2.68, 4.46, 5.42, 6.04, 6.86, 6.41, 6.66, 6.71, 7.18, 6.44, 6.10, 4.70, 2.80, 1.51, 0.57, -0.72, -1.29, -1.34, -0.98, -0.38, 1.39, 0.58, -0.05, 0.82, 3.25, 4.53, 5.26, 7.02, 7.26, 7.30, 7.50, 8.21, 8.05, 7.58, 6.91, 5.20, 3.32, 2.59, 1.49, 0.24, 0.20, 0.36, 0.72, 1.52, 1.56, 2.34, 2.78, 3.73, 5.44, 5.83, 7.59, 7.67, 7.05, 7.42, 7.92, 8.39, 8.96, 9.28, 10.06, 10.09, 9.80, 9.51, 9.26, 9.35, 9.56, 9.83, 10.21, 10.52, 10.40, 10.16, 9.96, 10.29, 11.35, 11.85, 12.24, 12.82, 13.62, 13.57, 15.03, 14.88, 16.05, 16.24, 15.16, 12.83, 10.83, 10.10, 9.81], 
		"precipitation": [0.00, 0.70, 1.40, 0.90, 0.80, 0.90, 1.00, 0.60, 0.30, 0.10, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.30, 0.60, 0.60, 0.50, 0.40, 1.10, 1.00, 0.10, 0.00, 0.00, 0.00, 0.20, 0.20, 0.20, 0.10, 0.30, 0.60, 0.50, 0.20, 0.10, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.30, 0.10, 0.10, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00], 
		"snowfraction": [1.00, 1.00, 1.00, 1.00, 1.00, 1.00, 1.00, 1.00, 1.00, 1.00, 0.00, 0.00, 0.00, 0.00, 1.00, 1.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00], 
		"winddirection": [42, 47, 48, 49, 49, 49, 47, 48, 52, 50, 51, 49, 46, 46, 46, 46, 42, 40, 40, 39, 35, 33, 31, 31, 29, 26, 26, 26, 26, 29, 33, 36, 36, 44, 48, 45, 39, 35, 32, 27, 27, 28, 22, 17, 14, 19, 20, 23, 25, 23, 17, 12, 360, 353, 352, 326, 283, 270, 323, 333, 346, 354, 355, 347, 348, 345, 340, 331, 320, 299, 268, 248, 239, 234, 234, 233, 236, 236, 234, 235, 239, 239, 240, 238, 245, 246, 247, 248, 251, 254, 254, 253, 250, 249, 252, 251, 259, 261, 264, 270, 277, 280, 279, 278, 283, 286, 291, 295, 296, 294, 274, 270, 272, 274, 268, 261, 254, 250, 248, 251], 
		"windspeed": [4.32, 6.58, 11.54, 15.88, 16.01, 17.15, 16.56, 16.43, 16.16, 15.12, 14.99, 14.10, 14.64, 14.78, 14.78, 13.65, 13.80, 14.26, 14.12, 13.79, 13.12, 12.46, 11.75, 11.08, 10.52, 10.24, 9.88, 9.35, 8.59, 7.65, 6.71, 6.16, 6.30, 7.21, 8.57, 9.19, 9.39, 9.63, 7.55, 7.38, 7.20, 7.25, 7.32, 7.75, 7.20, 5.72, 4.59, 4.03, 3.53, 3.05, 2.72, 2.35, 1.90, 2.42, 2.22, 1.80, 1.84, 2.00, 2.00, 2.46, 3.20, 3.92, 4.72, 5.24, 5.51, 5.70, 5.31, 4.70, 3.41, 2.51, 2.60, 2.92, 3.72, 4.08, 5.08, 6.00, 6.55, 6.85, 7.16, 7.77, 8.44, 9.69, 10.31, 11.10, 11.81, 11.60, 11.38, 10.86, 10.02, 9.59, 9.15, 9.30, 9.14, 9.12, 8.63, 8.35, 7.94, 7.38, 6.94, 7.00, 7.36, 7.32, 6.89, 7.07, 7.38, 7.82, 8.36, 8.28, 8.01, 7.75, 7.42, 7.70, 7.60, 7.62, 7.81, 8.01, 7.47, 7.43, 7.67, 7.40], 
		"relativehumidity": [90, 91, 95, 94, 94, 96, 97, 96, 94, 83, 84, 84, 82, 74, 66, 66, 63, 60, 61, 61, 65, 70, 78, 83, 80, 78, 78, 81, 84, 88, 92, 89, 79, 62, 45, 40, 39, 35, 40, 40, 40, 40, 41, 44, 51, 59, 65, 71, 79, 83, 84, 82, 81, 74, 81, 92, 90, 77, 65, 59, 54, 57, 50, 50, 50, 53, 54, 55, 63, 72, 77, 81, 86, 84, 83, 85, 85, 89, 88, 87, 81, 74, 72, 68, 75, 84, 86, 87, 88, 90, 90, 88, 89, 91, 92, 93, 93, 94, 94, 94, 93, 93, 93, 93, 90, 85, 81, 77, 73, 68, 78, 72, 70, 63, 60, 61, 69, 77, 81, 82]
	}

Need to get the time and respective sealevelpressue.

Can anyone do a favour ?

What I have tried:

C#

var AirObjects = JsonConvert.DeserializeObject<List<Measurements>>(Airresult);

C#

public class Measurements
       {
           public string timestamp { set; get; }
           public decimal value { set; get; }
       }

Posted 27-Sep-22 23:51pm

kishore Rajendran

Updated 28-Sep-22 3:26am

PIEBALDconsult

v2

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Graeme_Grant · Accepted Answer · 2022-09-28T02:28:00

Here are the classes for that JSON data:

C#

    public class Metadata
    {

        [JsonProperty("name")]
        public string Name { get; set; }

        [JsonProperty("latitude")]
        public double Latitude { get; set; }

        [JsonProperty("longitude")]
        public double Longitude { get; set; }

        [JsonProperty("height")]
        public int Height { get; set; }

        [JsonProperty("timezone_abbrevation")]
        public string TimezoneAbbrevation { get; set; }

        [JsonProperty("utc_timeoffset")]
        public double UtcTimeoffset { get; set; }

        [JsonProperty("modelrun_utc")]
        public string ModelrunUtc { get; set; }
    }

    public class Units
    {

        [JsonProperty("time")]
        public string Time { get; set; }

        [JsonProperty("pressure")]
        public string Pressure { get; set; }

        [JsonProperty("relativehumidity")]
        public string Relativehumidity { get; set; }

        [JsonProperty("temperature")]
        public string Temperature { get; set; }

        [JsonProperty("precipitation")]
        public string Precipitation { get; set; }

        [JsonProperty("winddirection")]
        public string Winddirection { get; set; }

        [JsonProperty("windspeed")]
        public string Windspeed { get; set; }
    }

    public class History1h
    {

        [JsonProperty("time")]
        public IList<string> Time { get; set; }

        [JsonProperty("sealevelpressure")]
        public IList<int> Sealevelpressure { get; set; }

        [JsonProperty("temperature")]
        public IList<double> Temperature { get; set; }

        [JsonProperty("precipitation")]
        public IList<double> Precipitation { get; set; }

        [JsonProperty("snowfraction")]
        public IList<double> Snowfraction { get; set; }

        [JsonProperty("winddirection")]
        public IList<int> Winddirection { get; set; }

        [JsonProperty("windspeed")]
        public IList<double> Windspeed { get; set; }

        [JsonProperty("relativehumidity")]
        public IList<int> Relativehumidity { get; set; }
    }

    public class Result
    {

        [JsonProperty("metadata")]
        public Metadata Metadata { get; set; }

        [JsonProperty("units")]
        public Units Units { get; set; }

        [JsonProperty("history_1h")]
        public History1h History1h { get; set; }
    }

And to deserialize:

C#

var AirObjects = JsonConvert.DeserializeObject<Result>(Airresult);

I used JSON Utils: Generate C#, VB.Net, SQL TAble and Java from JSON[^] to generate the classes.

For more detailed information on deserializing JSON data, I suggest these 2 articles:
1. Working with Newtonsoft.Json in C# & VB[^]
2. Working with System.Text.Json in C#[^]