Hello everyone is it possible to get all the keys of nested

Question

Hello everyone is it possible to get all the keys of nested Json using Kotlin without using actual class similar to JavaScript

andylamax · Answer

something like this <https github com aSoft Ltd kotlinx serialization mapper|https github com aSoft Ltd kotlinx serialization mapper>

Baidyanath · Answer

Hi Anderson thanks for the response Just wondering if this works for the nested object I don t see any examples

andylamax · Answer

Yes it does work for nested object The JSON structure comes out as a kotlin Map object

Baidyanath · Answer

Thanks if you could provide example given that JSON is like below and wanted to get the keys at `local` level name String address local street 241 80

andylamax · Answer

<https github com aSoft Ltd kotlinx serialization mapper blob b4963291374ee7290c600654d3c6abdb3ef065b3 src commonTest kotlin JsonToMapTest kt L24|https github com aSoft Ltd kotlinx serialization mapper blob b4963291374ee7290c600654d3c6abdb3ef065b3 src commonTest kotlin JsonToMapTest kt L24> Does that help

andylamax · Answer

```val map = Mapper decodeFromString json val address = map address as Map lt String Any gt val local = address local as Map lt String String gt val street = local street println street 241 80 ```

asad.awadia · Answer

< Baidyanath> what json library are you using

Baidyanath · Answer

< asad awadia> Klaxon

Baidyanath · Answer

< andylamax> it does not solve the problem

tipsy · Answer

the answer is yes there are libraries that support that at least jackson does but why do you not want to make it a class there are tools for easily creating kotlin classes from json if that s the reason

andylamax · Answer

Also maybe state what your expected input is and how you would go expect to go about it to retrieve the keys

Baidyanath · Answer

Okay so the problem is to find all the keys at any level of nested JSON In the above example suppose there are multiple keys and those keys could have another objects and so on I wanted to extract all the keys of any JSON at any level using Kotlin

andylamax · Answer

I don t think if this will help But checkout `kotlinx serialization properties`

Baidyanath · Answer

Thanks Anderson for always the prompt support Hey < tipsy> thanks for the reply I m able to get all the keys in any JSON Moreover I m modifying the algorithm to get all the keys at any given level key