Incorrect Struct with JSONs which have the same key.

[piqoni]

This JSON:

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00Z","data":{"instant":{"details":{"air_pressure_at_sea_level":1021.9,"air_temperature":16.9,"cloud_area_fraction":8.2,"relative_humidity":66.7,"wind_from_direction":83.4,"wind_speed":2.9}},"next_12_hours":{"summary":{"symbol_code":"partlycloudy_day"}},"next_6_hours":{"summary":{"symbol_code":"clearsky_night"},"details":{"precipitation_amount":0.0}}}},{"time":"2022-07-30T00:00:00Z","data":{"instant":{"details":{"air_pressure_at_sea_level":1020.1,"air_temperature":16.6,"cloud_area_fraction":100.0,"relative_humidity":79.8,"wind_from_direction":75.5,"wind_speed":5.5}},"next_12_hours":{"summary":{"symbol_code":"fair_day"}},"next_6_hours":{"summary":{"symbol_code":"cloudy"},"details":{"precipitation_amount":0.0}}}},{"time":"2022-07-30T06:00:00Z","data":{"instant":{"details":{"air_pressure_at_sea_level":1022.2,"air_temperature":16.6,"cloud_area_fraction":1.6,"relative_humidity":77.7,"wind_from_direction":64.4,"wind_speed":3.4}},"next_12_hours":{"summary":{"symbol_code":"clearsky_day"}},"next_6_hours":{"summary":{"symbol_code":"clearsky_day"},"details":{"precipitation_amount":0.0}}}},{"time":"2022-07-30T12:00:00Z","data":{"instant":{"details":{"air_pressure_at_sea_level":1022.7,"air_temperature":17.1,"cloud_area_fraction":8.2,"relative_humidity":78.6,"wind_from_direction":70.4,"wind_speed":3.8}},"next_12_hours":{"summary":{"symbol_code":"clearsky_day"}},"next_6_hours":{"summary":{"symbol_code":"clearsky_day"},"details":{"precipitation_amount":0.0}}}},{"time":"2022-07-30T18:00:00Z","data":{"instant":{"details":{"air_pressure_at_sea_level":1021.3,"air_temperature":17.2,"cloud_area_fraction":8.6,"relative_humidity":75.0,"wind_from_direction":98.3,"wind_speed":3.7}},"next_12_hours":{"summary":{"symbol_code":"clearsky_night"}},"next_6_hours":{"summary":{"symbol_code":"clearsky_night"},"details":{"precipitation_amount":0.0}}}},{"time":"2022-07-31T00:00:00Z","data":{"instant":{"details":{"air_pressure_at_sea_level":1021.2,"air_temperature":16.9,"cloud_area_fraction":11.7,"relative_humidity":79.3,"wind_from_direction":143.9,"wind_speed":3.2}},"next_12_hours":{"summary":{"symbol_code":"clearsky_day"}},"next_6_hours":{"summary":{"symbol_code":"clearsky_night"},"details":{"precipitation_amount":0.0}}}},{"time":"2022-07-31T06:00:00Z","data":{"instant":{"details":{"air_pressure_at_sea_level":1020.9,"air_temperature":17.1,"cloud_area_fraction":5.5,"relative_humidity":83.9,"wind_from_direction":138.5,"wind_speed":3.3}},"next_12_hours":{"summary":{"symbol_code":"fair_day"}},"next_6_hours":{"summary":{"symbol_code":"clearsky_day"},"details":{"precipitation_amount":0.0}}}},{"time":"2022-07-31T12:00:00Z","data":{"instant":{"details":{"air_pressure_at_sea_level":1020.9,"air_temperature":18.2,"cloud_area_fraction":10.9,"relative_humidity":80.2,"wind_from_direction":204.6,"wind_speed":3.5}},"next_12_hours":{"summary":{"symbol_code":"partlycloudy_day"}},"next_6_hours":{"summary":{"symbol_code":"clearsky_day"},"details":{"precipitation_amount":0.0}}}},{"time":"2022-07-31T18:00:00Z","data":{"instant":{"details":{"air_pressure_at_sea_level":1017.2,"air_temperature":18.1,"cloud_area_fraction":97.7,"relative_humidity":78.9,"wind_from_direction":222.5,"wind_speed":3.7}},"next_12_hours":{"summary":{"symbol_code":"fair_day"}},"next_6_hours":{"summary":{"symbol_code":"cloudy"},"details":{"precipitation_amount":0.0}}}},{"time":"2022-08-01T00:00:00Z","data":{"instant":{"details":{"air_pressure_at_sea_level":1017.8,"air_temperature":17.6,"cloud_area_fraction":12.1,"relative_humidity":79.4,"wind_from_direction":270.4,"wind_speed":3.4}},"next_12_hours":{"summary":{"symbol_code":"fair_day"}},"next_6_hours":{"summary":{"symbol_code":"clearsky_night"},"details":{"precipitation_amount":0.0}}}},{"time":"2022-08-01T06:00:00Z","data":{"instant":{"details":{"air_pressure_at_sea_level":1018.5,"air_temperature":17.4,"cloud_area_fraction":11.7,"relative_humidity":84.8,"wind_from_direction":245.1,"wind_speed":3.8}},"next_12_hours":{"summary":{"symbol_code":"partlycloudy_day"}},"next_6_hours":{"summary":{"symbol_code":"clearsky_day"},"details":{"precipitation_amount":0.0}}}},{"time":"2022-08-01T12:00:00Z","data":{"instant":{"details":{"air_pressure_at_sea_level":1017.4,"air_temperature":18.3,"cloud_area_fraction":99.2,"relative_humidity":74.5,"wind_from_direction":236.5,"wind_speed":3.9}},"next_6_hours":{"summary":{"symbol_code":"cloudy"},"details":{"precipitation_amount":0.0}}}},{"time":"2022-08-01T18:00:00Z","data":{"instant":{"details":{"air_pressure_at_sea_level":1016.0,"air_temperature":18.6,"cloud_area_fraction":100.0,"relative_humidity":73.0,"wind_from_direction":243.6,"wind_speed":3.9}}}}]}}

Generates a struct with multiple Data0, Data1, Data2 structs inside. (Cannot put it here as Github complains about it being too big)

Expected Output:

type AutoGenerated struct {
	Type     string `json:"type"`
	Geometry struct {
		Type        string `json:"type"`
		Coordinates []int  `json:"coordinates"`
	} `json:"geometry"`
	Properties struct {
		Meta struct {
			UpdatedAt time.Time `json:"updated_at"`
			Units     struct {
				AirPressureAtSeaLevel string `json:"air_pressure_at_sea_level"`
				AirTemperature        string `json:"air_temperature"`
				CloudAreaFraction     string `json:"cloud_area_fraction"`
				PrecipitationAmount   string `json:"precipitation_amount"`
				RelativeHumidity      string `json:"relative_humidity"`
				WindFromDirection     string `json:"wind_from_direction"`
				WindSpeed             string `json:"wind_speed"`
			} `json:"units"`
		} `json:"meta"`
		Timeseries []struct {
			Time time.Time `json:"time"`
			Data struct {
				Instant struct {
					Details struct {
						AirPressureAtSeaLevel float64 `json:"air_pressure_at_sea_level"`
						AirTemperature        float64 `json:"air_temperature"`
						CloudAreaFraction     float64 `json:"cloud_area_fraction"`
						RelativeHumidity      float64 `json:"relative_humidity"`
						WindFromDirection     float64 `json:"wind_from_direction"`
						WindSpeed             float64 `json:"wind_speed"`
					} `json:"details"`
				} `json:"instant"`
				Next12Hours struct {
					Summary struct {
						SymbolCode string `json:"symbol_code"`
					} `json:"summary"`
				} `json:"next_12_hours"`
				Next1Hours struct {
					Summary struct {
						SymbolCode string `json:"symbol_code"`
					} `json:"summary"`
					Details struct {
						PrecipitationAmount float64 `json:"precipitation_amount"`
					} `json:"details"`
				} `json:"next_1_hours"`
				Next6Hours struct {
					Summary struct {
						SymbolCode string `json:"symbol_code"`
					} `json:"summary"`
					Details struct {
						PrecipitationAmount float64 `json:"precipitation_amount"`
					} `json:"details"`
				} `json:"next_6_hours"`
			} `json:"data"`
		} `json:"timeseries"`
	} `json:"properties"`
}

[mholt]

Oh... that's tricky. It's probably because the "data" structs don't have exactly the same fields. Or something like that.

I'm a bit swamped with other things right now but I'd welcome a pull request to patch this! (Preferably one that simplifies existing code rather than adding complexity, if possible. It's likelhy an earlier version of this script doesn't have this bug; it'd be useful to know where the bug was introduced.)

[grische]

@piqoni I cannot reproduce this. Can you upload a gist (https://gist.github.com) and share both the unexpected go as well as the full json?