REST Api - JSON - "Cannot deserialize instance of object out of START_ARRAY token"

Question

The issue in question is as follows:-

I have a POJO with a list of Apple objects , say applesList.

This is stored in Cosmos DB.

When applesList is null, the get endpoint works fine. I get the Pojo as is.

When applesList is populated with apples, i get the error as given in the Title.

How do i fix this?

Json that works with get :-

{
  "userId" : "123",
  "applesList" : null
}

Json that gives stated error on get, applesList is populated by api :-

{
  "userId" : "123",
  "applesList" : [
       {
          "color" : "red",
          "weight" : "150 g"
       },
       {
          "color" : "green",
          "weight" : "200 g"
       }
   ]
}

Edit :- missed mentioning Cosmos DB SQL API

Stop explaining code, show it, what is the incoming json, what is the actual java class involved that you want to map to? — luk2302, Aug 17 '20 at 16:24
Make sure your pojo and nested apple object is extending Serializable interface — Suraj, Aug 17 '20 at 16:24

score 0 · Answer 1 · answered Aug 18 '20 at 15:25

0

Change applesList to an array.

answered Aug 18 '20 at 15:25

mad_fox

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REST Api - JSON - "Cannot deserialize instance of object out of START_ARRAY token"

1 Answers1