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- consistent use of camel case. Where some PI-XML elements start with a upperCase, the camelCase convention is used for all JSON objects. For example the timeSeries.xsd of PI-XML defines the root element as TimeSeries. In PI-JSON it is called timeSeries. All JSON properties use the camelCase convention.
- Implicit object names are left out. For example in the timeSeries.xsd of PI-XML timeSeries is defined as a sequence of series elements. In PI-JSON the element "series" is left out.
- Values are always quoted.
- XML attributes are transformed to JSON properties.
Python Example
See FEWS PI-JSON can be easily read using Python. The following example shows how to read PI-JSON timeseries using the requests module. The result contains a dictionary with timeSeries.
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REST Examples for some examples on how the PI-JSON format can be used from for example Python or JavaScript.
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