> For the complete documentation index, see [llms.txt](https://vc-docs.gitbook.io/engine/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://vc-docs.gitbook.io/engine/home/doxygen_synced/classes/class_live_data.md).
# LiveData
**Usage:** `api.LiveData.Fetch_NEA_AirTemp((ok, rec) => {})`
Fetch live and historical weather and solar-inverter data. Results come back through a callback.
## Public Classes
| | Name |
| ------ | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| struct | NEA\_AirTemp
A cached NEA air-temperature record.
|
| struct | PVInverterRow
A single PV-inverter reading: a timestamp and a set of named values.
|
| struct | OpenMeteoData
Open-Meteo archive API response.
|
## Public Functions
| | Name |
| ---- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| void | Fetch\_NEA\_AirTemp(Action< bool, NEA\_AirTemp > onCompleted)
Gets the latest air-temperature reading.
|
| void | Fetch\_OpenMeteo\_Data(Action< bool, OpenMeteoData > onCompleted)
Gets historical hourly weather and solar-irradiance data (Singapore) up to today.
|
| void | Fetch\_CampusCourt\_PV\_Inverter\_Data(int year, int month, int day, Action< bool, List< PVInverterRow > > onCompleted)
Gets a full day of Campus Court solar-inverter readings.
|
| void | Fetch\_CampusHeart\_PV\_Inverter\_Data(int year, int month, int day, Action< bool, List< PVInverterRow > > onCompleted)
Gets a full day of Campus Heart solar-inverter readings.
|
| void | Fetch\_CampusCourt\_PV\_Inverter\_Day(int year, int month, int day, Action< bool, List< PVInverterRow > > onCompleted)
Same as Fetch\_CampusCourt\_PV\_Inverter\_Data; callable on a LiveData value.
|
| void | Fetch\_CampusHeart\_PV\_Inverter\_Day(int year, int month, int day, Action< bool, List< PVInverterRow > > onCompleted)
Same as Fetch\_CampusHeart\_PV\_Inverter\_Data; callable on a LiveData value.
|
## Public Functions Documentation
### function Fetch\_NEA\_AirTemp
```csharp
static void Fetch_NEA_AirTemp(
Action< bool, NEA_AirTemp > onCompleted
)
```
Gets the latest air-temperature reading.
**Parameters**:
* **onCompleted** Receives (true, record) on success or (false, empty) on failure.
### function Fetch\_OpenMeteo\_Data
```csharp
static void Fetch_OpenMeteo_Data(
Action< bool, OpenMeteoData > onCompleted
)
```
Gets historical hourly weather and solar-irradiance data (Singapore) up to today.
**Parameters**:
* **onCompleted** Receives (true, data) on success or (false, empty) on failure.
### function Fetch\_CampusCourt\_PV\_Inverter\_Data
```csharp
static void Fetch_CampusCourt_PV_Inverter_Data(
int year,
int month,
int day,
Action< bool, List< PVInverterRow > > onCompleted
)
```
Gets a full day of Campus Court solar-inverter readings.
**Parameters**:
* **year** Year.
* **month** Month.
* **day** Day.
* **onCompleted** Receives (true, rows) on success or (false, empty) on failure.
### function Fetch\_CampusHeart\_PV\_Inverter\_Data
```csharp
static void Fetch_CampusHeart_PV_Inverter_Data(
int year,
int month,
int day,
Action< bool, List< PVInverterRow > > onCompleted
)
```
Gets a full day of Campus Heart solar-inverter readings.
**Parameters**:
* **year** Year.
* **month** Month.
* **day** Day.
* **onCompleted** Receives (true, rows) on success or (false, empty) on failure.
### function Fetch\_CampusCourt\_PV\_Inverter\_Day
```csharp
void Fetch_CampusCourt_PV_Inverter_Day(
int year,
int month,
int day,
Action< bool, List< PVInverterRow > > onCompleted
)
```
Same as Fetch\_CampusCourt\_PV\_Inverter\_Data; callable on a LiveData value.
**Parameters**:
* **year** Year.
* **month** Month.
* **day** Day.
* **onCompleted** Receives (true, rows) on success or (false, empty) on failure.
### function Fetch\_CampusHeart\_PV\_Inverter\_Day
```csharp
void Fetch_CampusHeart_PV_Inverter_Day(
int year,
int month,
int day,
Action< bool, List< PVInverterRow > > onCompleted
)
```
Same as Fetch\_CampusHeart\_PV\_Inverter\_Data; callable on a LiveData value.
**Parameters**:
* **year** Year.
* **month** Month.
* **day** Day.
* **onCompleted** Receives (true, rows) on success or (false, empty) on failure.
***
Updated on 2026-07-22 at 12:00:00 +0800