elasticsearch - NEST: How to handle array fields which contains a single value (Newtonsoft Json Serialization error) -


during evaluation of elasticsearch in combination nest faced new problem. problem regarding fields array types plus fact array types automatically supported in es. have field productids can contain 1 or n values. mapping defined following:

 […]     "productids" : {         "type" : " integer",         "store" : "yes"     }, […]

if field contains couple of ids query result in es looks this:

 productids: [     1,     2 ]

the fact array types automatically, field looks if contains single value: 

     productids: 1

this circumstances leads following problem: have nest-query mapped class. in class attribute productids defined list<int> (i tried integer array). works fine long there more single value. if field contains single value in es it’s saved primitive data type. leads error in newtonsoft.json:

connection error. @ newtonsoft.json.serialization.jsonserializerinternalreader.ensuretype(jsonreader reader, object value, cultureinfo culture, jsoncontract contract, type targettype)

at newtonsoft.json.serialization.jsonserializerinternalreader.createvalueinternal(jsonreader reader, type objecttype, jsoncontract contract, jsonproperty member, jsoncontainercontract containercontract, jsonproperty containermember, object existingvalue)

at newtonsoft.json.serialization.jsonserializerinternalreader.setpropertyvalue(jsonproperty property, jsonconverter propertyconverter, jsoncontainercontract containercontract, jsonproperty containerproperty, jsonreader reader, object target)

so suggestions how solve problem? tia

you not first run solution has been provided here: https://github.com/mpdreamz/nest/issues/227#issuecomment-16550076

support out of box in nest planned too.


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