IoT TS Aggregates Client for Node.js¶
Introduction¶
The IoT TS Aggregates Node.js client allows you to query aggregated time series data. Refer to IoT TS Aggregates for more information about the service.
Hint
In the IoT context, assets are referred to as entity and aspects as propertyset.
Placeholders in the following samples are indicated by angluar brackets < >
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TS Aggregates operations¶
Client name: AggregatesClient
Read aggregated time series¶
Read aggregated time series data of a specific asset and aspect. This feature is only available if aspect data is available within the specified time range.
Note
A query can only return up to 200 aggregate intervals in one response.
Aggregates can only be created from up to 5,000 raw time series entries.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 | // Import the mindsphere-sdk-node-core module and require AppCredentials and ClientConfig let AppCredentials = require('mindsphere-sdk-node-core').AppCredentials; let ClientConfig = require('mindsphere-sdk-node-core').ClientConfig; // Import the timeseriesaggregate module and require AggregatesClient const AggregatesClient = require('tsaggregates-sdk').AggregatesClient; // Construct the ClientConfig and AppCredentials objects let config = new ClientConfig(); let credentials = new AppCredentials(); // Construct the AggregatesClient object let aggregates_client = new AggregatesClient(config, credentials); try { const request_object = { entity: <entity_id>, propertyset : <property_set>, from: <from_date>, to: <to_date>, intervalValue: <interval_length>, intervalUnit: <interval_unit>, select: <select> }; let aggregates_data = await aggregates_client.getAggregateTimeseries(request_object); } catch (ex) { // Exception handling } |
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