fiware - Filter queryContext with attribute value in orion context broker -

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i'm doing querycontext against instance of orion context broker , filter query obtain entities according value of 1 of attributes.

i not filtered results using attributeexpression, through curl request, or javascript wirecloud ngsi api.

i browsed context broker orion code , seems attributeexpression not implemented.

using json querycontext curl.

could please give me example?

current orion version (0.22.0 @ time of writting this) implements set of filters described in this section of orion user manual. note current filters implemented in standard operations using scope instead of attributeexpression, but, @ end, common way in oma ngsi of defining restrictions.

unfortunatelly, attribute value filters not supported. news functionality part of ngsiv2 being worked out. have q url parameters "list entities" convenience operation @ ngsiv2 specification webpage. q filters parameter have correspondence in restriction element standard operations (to defined @ present moment).


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