Build json builder with arrayJson in groovy - arrays

Question

I am new in groovy and I want to construct a json object with the builder
{
"query": {
"bool": {
"must": [
{
"bool": {
"should": [
{ "match": { "content": "scontent" } },
{ "match": { "title":"stitle" } }
]
}
},
{
"bool": {
"should": [
{ "match": { "a1": "v1" } },
{ "match": { "a2":"v2" } },
... and so on ...
{ "match": { "an":"vn" } }
]
}
}
]
}
},
"highlight": {
"fields": {
"content":{}
}
}
}
I search a lot of on other posts on stackoverflow and I write this code
So I did this but no way to get what I want :
JsonBuilder builder = new JsonBuilder()
def body = builder {
from Lib.or(qQuery.start, 0)
size Lib.or(qQuery.num, 10)
query {
bool {
must [
{
bool {
should [
{ match { content 'scontent' } },
{ match { title 'stitle' } }
]
}
},
{
bool {
should myVals.collect {[
'match' : { it.key it.value }
]}
}
}
]
}
}
highlight {
fields {
content {}
}
}
}
Thanks for any help !

Answer 1

I think you can make this work with the JsonBuilder as is, but it is usually easier to create the data structure using maps and lists (which is what the builder outputs) in groovy as you have more control there.
Example code:
import groovy.json.*
def data = [
query: [
bool: [
must: [
[bool:
[should: [
[match: [ content: 'scontent']],
[match: [ title: 'stitle']]
]]
],
[bool:
[should: [
[match: [ a1: 'v1']],
[match: [ a2: 'v2']],
[match: [ vn: 'vn']]
]]
]
]
]
]
]
println JsonOutput.prettyPrint(JsonOutput.toJson(data))
produces:
{
"query": {
"bool": {
"must": [
{
"bool": {
"should": [
{
"match": {
"content": "scontent"
}
},
{
"match": {
"title": "stitle"
}
}
]
}
},
{
"bool": {
"should": [
{
"match": {
"a1": "v1"
}
},
{
"match": {
"a2": "v2"
}
},
{
"match": {
"vn": "vn"
}
}
]
}
}
]
}
}
}
I did not include your full json as it takes up some space, but the structure is there. Note the use of lists ([valueA, valueB]) vs maps ([someKey: someValue]) in the data structure.
Granted this makes the JsonBuilder less than 100% useful but I haven't seen any concise ways of including lists of large json objects in a list within the structure. You can do:
def json = JsonBuilder()
json.query {
bool('list', 'of', 'values')
}
but for larger structures as list elements I would say go with the lists and maps approach.