How can I stop JsonSlurper from converting objects/maps to arrays?

Question

I have a JSON response item from a web service that looks like this:

[
    {
        "field1":"value",
        "field2":"value2",
        "field3":"value3",
        "field4":"value4"
    },
    {
        "field1":"value",
        "field2":"value2",
        "field3":"value3",
        "field4":"value4"
    },
    ...
]

Before conversion my response string looks normal (like this):

[{"field1":"value","field2":"value2","field3":"value3", "field4":"value4"},{...},...]

However after I run def allData = new JsonSlurper().parseText(response)

and then log allData it appears that it's converting my objects to arrays:

Example:

[["field1":"value","field2":"value2","field3":"value3", "field4":"value4"],[...],...]

Does anyone know why this is happening?

Edit:

Imports: import groovy.json.JsonSlurper

Your input is being converted to an array of Maps. What did you want it to become? — Daniel, Apr 25 '18 at 18:56
I want an array of maps. It's being converted into an array of arrays (`{` vs `[`) — Fueled By Coffee, Apr 25 '18 at 18:57
The groovy syntax for map is [key: value]. This is working exactly as you want it to. — Daniel, Apr 25 '18 at 19:03
Nomenclature aside, it's clear that I want a JSON-like object — Fueled By Coffee, Apr 25 '18 at 19:05
You say you want an array of maps, and that's what this is. It's not clear what the problem is. What is a "JSON-like object"? — Daniel, Apr 25 '18 at 19:10
I'm looking for objects to be surrounded by curly braced (like it is in JSON) (https://www.json.org/). So the structure would be [ { ... }, { ... } ] — Fueled By Coffee, Apr 25 '18 at 19:13
That's just the string representation (toString()) of a Map in Groovy. You could write your own method to output a different String but it won't change the fact that the underlying data structure is a collection of maps. — Daniel, Apr 25 '18 at 19:16
FYI chat is blocked where I work, I found out when I tried to continue in chat. Sorry to have to continue in comments! — Daniel, Apr 25 '18 at 19:16

score 1 · Accepted Answer · answered Apr 25 '18 at 19:23

To clarify the (admittedly long) comments above for anyone who has this problem in the future:

That is an array of maps. The confusion came from a difference in String representation between JSON and Groovy, but the underlying data structure was already correct.

How can I stop JsonSlurper from converting objects/maps to arrays?

1 Answers1