How to access elasticsearch nested objects - elasticsearch

Question

I tried to get my head wrapped around nested queries but I can't get this to work.
I have 2 items in ES that look like this
{
"_index": "catalog",
"_type": "products",
"_source": {
"product": {
"ean": "abc",
"features": {
"Product Type": "DVD player",
},
"color": "Black",
"manufacturer": "Sony",
"sitedetails": [
{
"name": "amazon.com",
"sku": "zzz",
"url": "http://www.amazon.com/dp/zzz"
}
],
"category": "Portable DVD Players"
}
}
},
{
"_index": "catalog",
"_type": "products",
"_source": {
"product": {
"ean": "def",
"features": {
"Product Type": "MP3 player",
},
"color": "Black",
"manufacturer": "LG",
"sitedetails": [
{
"name": "amazon.com",
"sku": "aaa",
"url": "http://www.amazon.com/dp/aaa"
}
],
"category": "MP3 Players"
}
}
}
2 questions:
What is the curl to get sku = zzz?
What is the curl to get both items on a search for "players"?
tnx!

Answer 1

Heyy bro, lets do the magic.
First , you need an mapping including your nested objects, like this
curl -XPUT "http://192.168.99.100:9200/catalog" -d'
{
"mappings": {
"products": {
"properties": {
"product": {
"type": "nested",
"properties": {
"features": {
"type":"nested"
},
"sitedetails": {
"type": "nested"
}
}
}
}
}
}
}'
After that, lets insert your data (change your Product Type to product_type)
curl -XPOST "http://192.168.99.100:9200/catalog/products" -d'
{
"product": {
"ean": "abc",
"features": {
"product_type": "DVD player"
},
"color": "Black",
"manufacturer": "Sony",
"sitedetails": [
{
"name": "amazon.com",
"sku": "zzz",
"url": "http://www.amazon.com/dp/zzz"
}
],
"category": "Portable DVD Players"
}
}'
Now, lets do the query
curl -XPOST "http://192.168.99.100:9200/catalog/products/_search" -d'
{
"query": {
"bool": {
"must": [
{
"nested": {
"path": "product.features",
"query": {
"match": {
"product.features.product_type": "player"
}
}
}
},
{
"nested": {
"path": "product.sitedetails",
"query": {
"match": {
"product.sitedetails.sku": "zzz"
}
}
}
}
]
}
}
}'
And the response will be:
"hits": {
"total": 1,
"max_score": 1.4054651,
"hits": [
{
"_index": "catalog",
"_type": "products",
"_id": "AVM_fcYgvVoSi3OfqPTX",
"_score": 1.4054651,
"_source": {
"product": {
"ean": "abc",
"features": {
"Product Type": "DVD player"
},
"color": "Black",
"manufacturer": "Sony",
"sitedetails": [
{
"name": "amazon.com",
"sku": "zzz",
"url": "http://www.amazon.com/dp/zzz"
}
],
"category": "Portable DVD Players"
}
}
}
]
}
Hope it help :D

Answer 2

Use:
curl 'http://localhost:9200/catalog/products/_search?q=sku:"zzz"&pretty=true'
curl 'http://localhost:9200/catalog/products/_search?q=sku:*&pretty=true'. like my thinking, you want to get data within sku:"zzz" and sku:"aaa".
Referer:
http://joelabrahamsson.com/elasticsearch-101/
http://www.elasticsearchtutorial.com/elasticsearch-in-5-minutes.html