How to extract list [] from Json file with AESON - json

Question

I have this JSON code
{
"cod": "200",
"message": 0.0205,
"cnt": 40,
"list": [{
"dt": 1529690400,
"main": {
"temp": 294.89,
"temp_min": 289.889,
"temp_max": 294.89,
"pressure": 875.6,
"sea_level": 1022.36,
"grnd_level": 875.6,
"humidity": 73,
"temp_kf": 5
},
"weather": [{
"id": 500,
"main": "Rain",
"description": "light rain",
"icon": "10n"
}],
"clouds": {
"all": 32
},
"wind": {
"speed": 0.76,
"deg": 355
},
"rain": {
"3h": 0.0625
},
"sys": {
"pod": "n"
},
"dt_txt": "2018-06-22 18:00:00"
}, {
"dt": 1529701200,
"main": {
"temp": 291.2,
"temp_min": 287.449,
"temp_max": 291.2,
"pressure": 875.14,
"sea_level": 1022.14,
"grnd_level": 875.14,
"humidity": 82,
"temp_kf": 3.75
},
"weather": [{
"id": 800,
"main": "Clear",
"description": "clear sky",
"icon": "02n"
}],
"clouds": {
"all": 8
},
"wind": {
"speed": 0.76,
"deg": 7.00244
},
"rain": {},
"sys": {
"pod": "n"
},
"dt_txt": "2018-06-22 21:00:00"
}, {
"dt": 1529712000,
"main": {
"temp": 288.19,
"temp_min": 285.69,
"temp_max": 288.19,
"pressure": 874.94,
"sea_level": 1022.29,
"grnd_level": 874.94,
"humidity": 88,
"temp_kf": 2.5
},
"weather": [{
"id": 800,
"main": "Clear",
"description": "clear sky",
"icon": "01n"
}],
"clouds": {
"all": 0
},
"wind": {
"speed": 0.26,
"deg": 237
},
"rain": {},
"sys": {
"pod": "n"
},
"dt_txt": "2018-06-23 00:00:00"
}, {
"dt": 1529722800,
"main": {
"temp": 288.65,
"temp_min": 287.398,
"temp_max": 288.65,
"pressure": 875.18,
"sea_level": 1022.74,
"grnd_level": 875.18,
"humidity": 86,
"temp_kf": 1.25
},
"weather": [{
"id": 800,
"main": "Clear",
"description": "clear sky",
"icon": "01d"
}],
"clouds": {
"all": 0
},
"wind": {
"speed": 0.37,
"deg": 91.5048
},
"rain": {},
"sys": {
"pod": "d"
},
"dt_txt": "2018-06-23 03:00:00"
}, {
"dt": 1529733600,
"main": {
"temp": 294.069,
"temp_min": 294.069,
"temp_max": 294.069,
"pressure": 874.97,
"sea_level": 1021.62,
"grnd_level": 874.97,
"humidity": 73,
"temp_kf": 0
},
"weather": [{
"id": 800,
"main": "Clear",
"description": "clear sky",
"icon": "01d"
}],
"clouds": {
"all": 0
},
"wind": {
"speed": 1.6,
"deg": 237.003
},
"rain": {},
"sys": {
"pod": "d"
},
"dt_txt": "2018-06-23 06:00:00"
}, {
"dt": 1529744400,
"main": {
"temp": 297.09,
"temp_min": 297.09,
"temp_max": 297.09,
"pressure": 874.08,
"sea_level": 1020,
"grnd_level": 874.08,
"humidity": 70,
"temp_kf": 0
},
"weather": [{
"id": 500,
"main": "Rain",
"description": "light rain",
"icon": "10d"
}],
"clouds": {
"all": 0
},
"wind": {
"speed": 0.85,
"deg": 306.003
},
"rain": {
"3h": 0.255
},
"sys": {
"pod": "d"
},
"dt_txt": "2018-06-23 09:00:00"
}, {
"dt": 1529755200,
"main": {
"temp": 298.961,
"temp_min": 298.961,
"temp_max": 298.961,
"pressure": 873.46,
"sea_level": 1019.23,
"grnd_level": 873.46,
"humidity": 53,
"temp_kf": 0
},
"weather": [{
"id": 500,
"main": "Rain",
"description": "light rain",
"icon": "10d"
}],
"clouds": {
"all": 48
},
"wind": {
"speed": 0.76,
"deg": 251.002
},
"rain": {
"3h": 0.04
},
"sys": {
"pod": "d"
},
"dt_txt": "2018-06-23 12:00:00"
}, {
"dt": 1529766000,
"main": {
"temp": 294.815,
"temp_min": 294.815,
"temp_max": 294.815,
"pressure": 874.28,
"sea_level": 1020.19,
"grnd_level": 874.28,
"humidity": 58,
"temp_kf": 0
},
"weather": [{
"id": 500,
"main": "Rain",
"description": "light rain",
"icon": "10d"
}],
"clouds": {
"all": 76
},
"wind": {
"speed": 1.86,
"deg": 352.501
},
"rain": {
"3h": 0.185
},
"sys": {
"pod": "d"
},
"dt_txt": "2018-06-23 15:00:00"
}, {
"dt": 1529776800,
"main": {
"temp": 290.337,
"temp_min": 290.337,
"temp_max": 290.337,
"pressure": 875.08,
"sea_level": 1021.69,
"grnd_level": 875.08,
"humidity": 73,
"temp_kf": 0
},
"weather": [{
"id": 500,
"main": "Rain",
"description": "light rain",
"icon": "10n"
}],
"clouds": {
"all": 36
},
"wind": {
"speed": 0.76,
"deg": 313.509
},
"rain": {
"3h": 0.02
},
"sys": {
"pod": "n"
},
"dt_txt": "2018-06-23 18:00:00"
}, {
"dt": 1529787600,
"main": {
"temp": 288.89,
"temp_min": 288.89,
"temp_max": 288.89,
"pressure": 875.39,
"sea_level": 1022.49,
"grnd_level": 875.39,
"humidity": 81,
"temp_kf": 0
},
"weather": [{
"id": 500,
"main": "Rain",
"description": "light rain",
"icon": "10n"
}],
"clouds": {
"all": 56
},
"wind": {
"speed": 1.01,
"deg": 40.0106
},
"rain": {
"3h": 0.055
},
"sys": {
"pod": "n"
},
"dt_txt": "2018-06-23 21:00:00"
}, {
"dt": 1529798400,
"main": {
"temp": 287.14,
"temp_min": 287.14,
"temp_max": 287.14,
"pressure": 875.88,
"sea_level": 1023.4,
"grnd_level": 875.88,
"humidity": 88,
"temp_kf": 0
},
"weather": [{
"id": 500,
"main": "Rain",
"description": "light rain",
"icon": "10n"
}],
"clouds": {
"all": 0
},
"wind": {
"speed": 0.56,
"deg": 269.504
},
"rain": {
"3h": 0.0050000000000001
},
"sys": {
"pod": "n"
},
"dt_txt": "2018-06-24 00:00:00"
}, {
"dt": 1529809200,
"main": {
"temp": 287.812,
"temp_min": 287.812,
"temp_max": 287.812,
"pressure": 876.56,
"sea_level": 1024.3,
"grnd_level": 876.56,
"humidity": 86,
"temp_kf": 0
},
"weather": [{
"id": 800,
"main": "Clear",
"description": "clear sky",
"icon": "01d"
}],
"clouds": {
"all": 0
},
"wind": {
"speed": 0.71,
"deg": 277.505
},
"rain": {},
"sys": {
"pod": "d"
},
"dt_txt": "2018-06-24 03:00:00"
}, {
"dt": 1529820000,
"main": {
"temp": 293.984,
"temp_min": 293.984,
"temp_max": 293.984,
"pressure": 876.57,
"sea_level": 1023.26,
"grnd_level": 876.57,
"humidity": 71,
"temp_kf": 0
},
"weather": [{
"id": 800,
"main": "Clear",
"description": "clear sky",
"icon": "01d"
}],
"clouds": {
"all": 0
},
"wind": {
"speed": 1.41,
"deg": 234.503
},
"rain": {},
"sys": {
"pod": "d"
},
"dt_txt": "2018-06-24 06:00:00"
}, {
"dt": 1529830800,
"main": {
"temp": 298.045,
"temp_min": 298.045,
"temp_max": 298.045,
"pressure": 875.39,
"sea_level": 1021.2,
"grnd_level": 875.39,
"humidity": 63,
"temp_kf": 0
},
"weather": [{
"id": 800,
"main": "Clear",
"description": "clear sky",
"icon": "01d"
}],
"clouds": {
"all": 0
},
"wind": {
"speed": 1.62,
"deg": 244.502
},
"rain": {},
"sys": {
"pod": "d"
},
"dt_txt": "2018-06-24 09:00:00"
}, {
"dt": 1529841600,
"main": {
"temp": 299.666,
"temp_min": 299.666,
"temp_max": 299.666,
"pressure": 874.25,
"sea_level": 1019.85,
"grnd_level": 874.25,
"humidity": 54,
"temp_kf": 0
},
"weather": [{
"id": 500,
"main": "Rain",
"description": "light rain",
"icon": "10d"
}],
"clouds": {
"all": 0
},
"wind": {
"speed": 0.77,
"deg": 13.5015
},
"rain": {
"3h": 0.11
},
"sys": {
"pod": "d"
},
"dt_txt": "2018-06-24 12:00:00"
}, {
"dt": 1529852400,
"main": {
"temp": 295.301,
"temp_min": 295.301,
"temp_max": 295.301,
"pressure": 874.92,
"sea_level": 1021.12,
"grnd_level": 874.92,
"humidity": 60,
"temp_kf": 0
},
"weather": [{
"id": 500,
"main": "Rain",
"description": "light rain",
"icon": "10d"
}],
"clouds": {
"all": 80
},
"wind": {
"speed": 1.51,
"deg": 352.5
},
"rain": {
"3h": 0.41
},
"sys": {
"pod": "d"
},
"dt_txt": "2018-06-24 15:00:00"
}, {
"dt": 1529863200,
"main": {
"temp": 291.351,
"temp_min": 291.351,
"temp_max": 291.351,
"pressure": 877.27,
"sea_level": 1024.08,
"grnd_level": 877.27,
"humidity": 69,
"temp_kf": 0
},
"weather": [{
"id": 500,
"main": "Rain",
"description": "light rain",
"icon": "10n"
}],
"clouds": {
"all": 88
},
"wind": {
"speed": 0.96,
"deg": 202.001
},
"rain": {
"3h": 0.16
},
"sys": {
"pod": "n"
},
"dt_txt": "2018-06-24 18:00:00"
}, {
"dt": 1529874000,
"main": {
"temp": 289.244,
"temp_min": 289.244,
"temp_max": 289.244,
"pressure": 877.29,
"sea_level": 1024.89,
"grnd_level": 877.29,
"humidity": 83,
"temp_kf": 0
},
"weather": [{
"id": 500,
"main": "Rain",
"description": "light rain",
"icon": "10n"
}],
"clouds": {
"all": 12
},
"wind": {
"speed": 0.86,
"deg": 2.00073
},
"rain": {
"3h": 0.245
},
"sys": {
"pod": "n"
},
"dt_txt": "2018-06-24 21:00:00"
}, {
"dt": 1529884800,
"main": {
"temp": 287.522,
"temp_min": 287.522,
"temp_max": 287.522,
"pressure": 877.08,
"sea_level": 1024.9,
"grnd_level": 877.08,
"humidity": 88,
"temp_kf": 0
},
"weather": [{
"id": 500,
"main": "Rain",
"description": "light rain",
"icon": "10n"
}],
"clouds": {
"all": 80
},
"wind": {
"speed": 0.75,
"deg": 318.504
},
"rain": {
"3h": 0.075
},
"sys": {
"pod": "n"
},
"dt_txt": "2018-06-25 00:00:00"
}, {
"dt": 1529895600,
"main": {
"temp": 288.908,
"temp_min": 288.908,
"temp_max": 288.908,
"pressure": 877.54,
"sea_level": 1025.36,
"grnd_level": 877.54,
"humidity": 83,
"temp_kf": 0
},
"weather": [{
"id": 800,
"main": "Clear",
"description": "clear sky",
"icon": "01d"
}],
"clouds": {
"all": 0
},
"wind": {
"speed": 0.05,
"deg": 262.003
},
"rain": {},
"sys": {
"pod": "d"
},
"dt_txt": "2018-06-25 03:00:00"
}, {
"dt": 1529906400,
"main": {
"temp": 294.535,
"temp_min": 294.535,
"temp_max": 294.535,
"pressure": 877.28,
"sea_level": 1024.11,
"grnd_level": 877.28,
"humidity": 69,
"temp_kf": 0
},
"weather": [{
"id": 800,
"main": "Clear",
"description": "clear sky",
"icon": "01d"
}],
"clouds": {
"all": 0
},
"wind": {
"speed": 1.13,
"deg": 219.503
},
"rain": {},
"sys": {
"pod": "d"
},
"dt_txt": "2018-06-25 06:00:00"
}, {
"dt": 1529917200,
"main": {
"temp": 298.43,
"temp_min": 298.43,
"temp_max": 298.43,
"pressure": 876.1,
"sea_level": 1022.05,
"grnd_level": 876.1,
"humidity": 62,
"temp_kf": 0
},
"weather": [{
"id": 800,
"main": "Clear",
"description": "clear sky",
"icon": "01d"
}],
"clouds": {
"all": 0
},
"wind": {
"speed": 0.47,
"deg": 209.002
},
"rain": {},
"sys": {
"pod": "d"
},
"dt_txt": "2018-06-25 09:00:00"
}, {
"dt": 1529928000,
"main": {
"temp": 300.707,
"temp_min": 300.707,
"temp_max": 300.707,
"pressure": 874.91,
"sea_level": 1020.42,
"grnd_level": 874.91,
"humidity": 53,
"temp_kf": 0
},
"weather": [{
"id": 500,
"main": "Rain",
"description": "light rain",
"icon": "10d"
}],
"clouds": {
"all": 8
},
"wind": {
"speed": 1.12,
"deg": 91.0061
},
"rain": {
"3h": 0.085
},
"sys": {
"pod": "d"
},
"dt_txt": "2018-06-25 12:00:00"
}, {
"dt": 1529938800,
"main": {
"temp": 300.111,
"temp_min": 300.111,
"temp_max": 300.111,
"pressure": 874.29,
"sea_level": 1020.03,
"grnd_level": 874.29,
"humidity": 45,
"temp_kf": 0
},
"weather": [{
"id": 500,
"main": "Rain",
"description": "light rain",
"icon": "10d"
}],
"clouds": {
"all": 8
},
"wind": {
"speed": 1.41,
"deg": 63.0023
},
"rain": {
"3h": 0.0049999999999999
},
"sys": {
"pod": "d"
},
"dt_txt": "2018-06-25 15:00:00"
}, {
"dt": 1529949600,
"main": {
"temp": 295.261,
"temp_min": 295.261,
"temp_max": 295.261,
"pressure": 874.79,
"sea_level": 1021.26,
"grnd_level": 874.79,
"humidity": 45,
"temp_kf": 0
},
"weather": [{
"id": 802,
"main": "Clouds",
"description": "scattered clouds",
"icon": "03n"
}],
"clouds": {
"all": 48
},
"wind": {
"speed": 3.2,
"deg": 35.0003
},
"rain": {},
"sys": {
"pod": "n"
},
"dt_txt": "2018-06-25 18:00:00"
}, {
"dt": 1529960400,
"main": {
"temp": 291.742,
"temp_min": 291.742,
"temp_max": 291.742,
"pressure": 874.55,
"sea_level": 1021.47,
"grnd_level": 874.55,
"humidity": 52,
"temp_kf": 0
},
"weather": [{
"id": 800,
"main": "Clear",
"description": "clear sky",
"icon": "01n"
}],
"clouds": {
"all": 0
},
"wind": {
"speed": 1.66,
"deg": 32.0015
},
"rain": {},
"sys": {
"pod": "n"
},
"dt_txt": "2018-06-25 21:00:00"
}, {
"dt": 1529971200,
"main": {
"temp": 289.406,
"temp_min": 289.406,
"temp_max": 289.406,
"pressure": 874.74,
"sea_level": 1021.87,
"grnd_level": 874.74,
"humidity": 60,
"temp_kf": 0
},
"weather": [{
"id": 802,
"main": "Clouds",
"description": "scattered clouds",
"icon": "03n"
}],
"clouds": {
"all": 36
},
"wind": {
"speed": 1.36,
"deg": 11.5036
},
"rain": {},
"sys": {
"pod": "n"
},
"dt_txt": "2018-06-26 00:00:00"
}, {
"dt": 1529982000,
"main": {
"temp": 290.344,
"temp_min": 290.344,
"temp_max": 290.344,
"pressure": 875.24,
"sea_level": 1022.61,
"grnd_level": 875.24,
"humidity": 68,
"temp_kf": 0
},
"weather": [{
"id": 800,
"main": "Clear",
"description": "clear sky",
"icon": "01d"
}],
"clouds": {
"all": 0
},
"wind": {
"speed": 1.07,
"deg": 25.501
},
"rain": {},
"sys": {
"pod": "d"
},
"dt_txt": "2018-06-26 03:00:00"
}, {
"dt": 1529992800,
"main": {
"temp": 296.669,
"temp_min": 296.669,
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"pressure": 875.14,
"sea_level": 1021.37,
"grnd_level": 875.14,
"humidity": 58,
"temp_kf": 0
},
"weather": [{
"id": 800,
"main": "Clear",
"description": "clear sky",
"icon": "01d"
}],
"clouds": {
"all": 0
},
"wind": {
"speed": 1.11,
"deg": 225.5
},
"rain": {},
"sys": {
"pod": "d"
},
"dt_txt": "2018-06-26 06:00:00"
}, {
"dt": 1530003600,
"main": {
"temp": 300.4,
"temp_min": 300.4,
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"pressure": 873.55,
"sea_level": 1019,
"grnd_level": 873.55,
"humidity": 52,
"temp_kf": 0
},
"weather": [{
"id": 800,
"main": "Clear",
"description": "clear sky",
"icon": "01d"
}],
"clouds": {
"all": 0
},
"wind": {
"speed": 1.12,
"deg": 237.501
},
"rain": {},
"sys": {
"pod": "d"
},
"dt_txt": "2018-06-26 09:00:00"
}, {
"dt": 1530014400,
"main": {
"temp": 302.474,
"temp_min": 302.474,
"temp_max": 302.474,
"pressure": 872.27,
"sea_level": 1017.3,
"grnd_level": 872.27,
"humidity": 42,
"temp_kf": 0
},
"weather": [{
"id": 800,
"main": "Clear",
"description": "clear sky",
"icon": "01d"
}],
"clouds": {
"all": 0
},
"wind": {
"speed": 1.52,
"deg": 234
},
"rain": {},
"sys": {
"pod": "d"
},
"dt_txt": "2018-06-26 12:00:00"
}, {
"dt": 1530025200,
"main": {
"temp": 300.919,
"temp_min": 300.919,
"temp_max": 300.919,
"pressure": 872.19,
"sea_level": 1017.17,
"grnd_level": 872.19,
"humidity": 37,
"temp_kf": 0
},
"weather": [{
"id": 800,
"main": "Clear",
"description": "clear sky",
"icon": "02d"
}],
"clouds": {
"all": 8
},
"wind": {
"speed": 1.65,
"deg": 266.501
},
"rain": {},
"sys": {
"pod": "d"
},
"dt_txt": "2018-06-26 15:00:00"
}, {
"dt": 1530036000,
"main": {
"temp": 294.477,
"temp_min": 294.477,
"temp_max": 294.477,
"pressure": 872.56,
"sea_level": 1018.52,
"grnd_level": 872.56,
"humidity": 55,
"temp_kf": 0
},
"weather": [{
"id": 800,
"main": "Clear",
"description": "clear sky",
"icon": "01n"
}],
"clouds": {
"all": 0
},
"wind": {
"speed": 0.92,
"deg": 342.504
},
"rain": {},
"sys": {
"pod": "n"
},
"dt_txt": "2018-06-26 18:00:00"
}, {
"dt": 1530046800,
"main": {
"temp": 290.615,
"temp_min": 290.615,
"temp_max": 290.615,
"pressure": 873.13,
"sea_level": 1019.46,
"grnd_level": 873.13,
"humidity": 51,
"temp_kf": 0
},
"weather": [{
"id": 800,
"main": "Clear",
"description": "clear sky",
"icon": "01n"
}],
"clouds": {
"all": 0
},
"wind": {
"speed": 1.81,
"deg": 20.505
},
"rain": {},
"sys": {
"pod": "n"
},
"dt_txt": "2018-06-26 21:00:00"
}, {
"dt": 1530057600,
"main": {
"temp": 288.302,
"temp_min": 288.302,
"temp_max": 288.302,
"pressure": 873.42,
"sea_level": 1020.19,
"grnd_level": 873.42,
"humidity": 68,
"temp_kf": 0
},
"weather": [{
"id": 800,
"main": "Clear",
"description": "clear sky",
"icon": "01n"
}],
"clouds": {
"all": 0
},
"wind": {
"speed": 1.42,
"deg": 10.0019
},
"rain": {},
"sys": {
"pod": "n"
},
"dt_txt": "2018-06-27 00:00:00"
}, {
"dt": 1530068400,
"main": {
"temp": 290.209,
"temp_min": 290.209,
"temp_max": 290.209,
"pressure": 873.93,
"sea_level": 1020.72,
"grnd_level": 873.93,
"humidity": 65,
"temp_kf": 0
},
"weather": [{
"id": 800,
"main": "Clear",
"description": "clear sky",
"icon": "01d"
}],
"clouds": {
"all": 0
},
"wind": {
"speed": 1.66,
"deg": 36
},
"rain": {},
"sys": {
"pod": "d"
},
"dt_txt": "2018-06-27 03:00:00"
}, {
"dt": 1530079200,
"main": {
"temp": 297.644,
"temp_min": 297.644,
"temp_max": 297.644,
"pressure": 873.95,
"sea_level": 1019.72,
"grnd_level": 873.95,
"humidity": 52,
"temp_kf": 0
},
"weather": [{
"id": 800,
"main": "Clear",
"description": "clear sky",
"icon": "01d"
}],
"clouds": {
"all": 0
},
"wind": {
"speed": 1.61,
"deg": 230
},
"rain": {},
"sys": {
"pod": "d"
},
"dt_txt": "2018-06-27 06:00:00"
}, {
"dt": 1530090000,
"main": {
"temp": 301.518,
"temp_min": 301.518,
"temp_max": 301.518,
"pressure": 873.16,
"sea_level": 1018.11,
"grnd_level": 873.16,
"humidity": 45,
"temp_kf": 0
},
"weather": [{
"id": 800,
"main": "Clear",
"description": "clear sky",
"icon": "01d"
}],
"clouds": {
"all": 0
},
"wind": {
"speed": 0.51,
"deg": 309.5
},
"rain": {},
"sys": {
"pod": "d"
},
"dt_txt": "2018-06-27 09:00:00"
}, {
"dt": 1530100800,
"main": {
"temp": 303.24,
"temp_min": 303.24,
"temp_max": 303.24,
"pressure": 872.25,
"sea_level": 1016.8,
"grnd_level": 872.25,
"humidity": 32,
"temp_kf": 0
},
"weather": [{
"id": 800,
"main": "Clear",
"description": "clear sky",
"icon": "01d"
}],
"clouds": {
"all": 0
},
"wind": {
"speed": 1.32,
"deg": 304.5
},
"rain": {},
"sys": {
"pod": "d"
},
"dt_txt": "2018-06-27 12:00:00"
}, {
"dt": 1530111600,
"main": {
"temp": 302.008,
"temp_min": 302.008,
"temp_max": 302.008,
"pressure": 871.75,
"sea_level": 1016.41,
"grnd_level": 871.75,
"humidity": 33,
"temp_kf": 0
},
"weather": [{
"id": 800,
"main": "Clear",
"description": "clear sky",
"icon": "01d"
}],
"clouds": {
"all": 0
},
"wind": {
"speed": 0.75,
"deg": 260.003
},
"rain": {},
"sys": {
"pod": "d"
},
"dt_txt": "2018-06-27 15:00:00"
}],
"city": {
"id": 616052,
"name": "Yerevan",
"coord": {
"lat": 40.1776,
"lon": 44.5126
},
"country": "AM",
"population": 1093485
}
}
How do I extract an item from this list?
I need to use AESON.
for example, how do I extract this?
{"temp":288.89,"temp_min":288.89,"temp_max":288.89,"pressure":875.39,"sea_level":1022.49,"grnd_level":875.39,"humidity":81,"temp_kf":0},"weather":[{"id":500,"main":"Rain","description":"light rain","icon":"10n"}],"clouds":{"all":56},"wind":{"speed":1.01,"deg":40.0106},"rain":{"3h":0.055},"sys":{"pod":"n"},"dt_txt":"2018-06-23 21:00:00"},{"dt":1529798400,"main":
My code:
{-# LANGUAGE DeriveAnyClass #-}
{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE OverloadedStrings #-}
module PrepareAnswer where
import Data.Aeson
import qualified Data.ByteString.Lazy as BSL
import Data.Maybe (fromMaybe)
import Data.Text
import Data.Time.Clock
import GHC.Generics
import Network.HTTP.Client
data MainWeatherInfo = MainWeatherInfo
{ mainInfo :: MainInfo
, list :: ListWeatherInfo
} deriving (Show, Generic)
data ListWeatherInfo = ListWeatherInfo
{ temper :: Double
, temp_min :: Double
, temp_max :: Double
, pressure1 :: Double
, sea_level :: Double
, grnd_level :: Double
, humidity :: Int
, temp_kf :: Double
, dt_txt :: UTCTime
} deriving (Show, Generic)
instance ToJSON MainWeatherInfo where
toJSON = genericToJSON defaultOptions { fieldLabelModifier = Prelude.take 4 }
instance FromJSON MainWeatherInfo where
parseJSON = genericParseJSON defaultOptions { fieldLabelModifier = Prelude.take 4 }
instance ToJSON ListWeatherInfo
instance FromJSON ListWeatherInfo
data MainInfo = MainInfo
{ temp :: Double
, pressure :: Int
} deriving ( Show
, Generic
, ToJSON
, FromJSON
)
prepareAnswer :: Response BSL.ByteString -> Text
prepareAnswer response = Data.Text.pack finalPhrase
where
finalPhrase = prepareValues weatherValues
weatherValues = extractValues . responseBody $ response
extractValues :: BSL.ByteString -> MainWeatherInfo
extractValues rawJSON =
let result = decode rawJSON :: Maybe MainWeatherInfo
in fromMaybe (error "Invalid JSON!") result
prepareValues :: MainWeatherInfo -> String
prepareValues (MainWeatherInfo dataWeNeed forecastList) =
"The expected temperature is: "
++ show (temp dataWeNeed )
++ " degrees Celsius, atmospheric pressure is "
++ show (pressure dataWeNeed)
++ " mm/hg"

Answer 1

You probably want list :: [ListWeatherInfo]. Currently it expects that list will be a record, but in the example data it is a json array.