How to match a json value with the jq command? - json

Question

I have the following json data:
{
"item_i7bfe8f00": {
"id": "i7bfe8f00",
"tag": "item",
"fields": {
"img": "https://example.com",
"quantity": {
"qtyPrefix": "Kuantitas",
"min": 1,
"autoOptions": false,
"quantity": 5,
"max": 5,
"editable": true,
"showIncrDecr": true,
"showOptions": false,
"step": 1
},
"sellerName": "ALL ITEM STORE",
"title": "Xiaomi Redmi 4A Softcase Black",
"stockTip": {},
"valid": true,
"itemId": "143800088",
"operations": [
"wishlist",
"delete"
],
"sellerId": "100124080",
"price": {
"price": 3500,
"currentPrice": "Rp3.500",
"originPrice": "Rp15.000",
"promotionRatio": "-77%"
},
"restriction": false,
"isGift": false,
"sku": {
"skuText": "Softcase, Hitam",
"productVariant": "SO908ELAAVYY4AANID-72544754",
"brandId": "17818",
"skuId": "157608391"
},
"itemUrl": "https://example.com",
"cartItemId": 2080280320
},
"type": "biz"
},
"item_i7c09dcce": {
"id": "i7c09dcce",
"tag": "item",
"fields": {
"img": "https://example.com",
"quantity": {
"qtyPrefix": "Kuantitas",
"min": 1,
"autoOptions": false,
"quantity": 1,
"max": 5,
"editable": true,
"showIncrDecr": true,
"showOptions": false,
"step": 1
},
"sellerName": "PT. Ecart Services Indonesia",
"title": "Black",
"stockTip": {},
"valid": true,
"itemId": "345695828",
"operations": [
"wishlist",
"delete"
],
"sellerId": "100161156",
"price": {
"price": 2499000,
"currentPrice": "Rp2.499.000"
},
"restriction": false,
"isGift": false,
"sku": {
"skuText": "Hitam",
"productVariant": "345695828_ID-359330058",
"brandId": "21734",
"skuId": "359330058"
},
"itemUrl": "https://example.com",
"cartItemId": 2081021134
},
"type": "biz"
}
}
and I want to show the object that only has "cartItemId": 2081021134 so the end result should look like this:
{
"item_i7c09dcce": {
"id": "i7c09dcce",
"tag": "item",
"fields": {
"img": "https://example.com",
"quantity": {
"qtyPrefix": "Kuantitas",
"min": 1,
"autoOptions": false,
"quantity": 1,
"max": 5,
"editable": true,
"showIncrDecr": true,
"showOptions": false,
"step": 1
},
"sellerName": "PT. Ecart Services Indonesia",
"title": "Black",
"stockTip": {},
"valid": true,
"itemId": "345695828",
"operations": [
"wishlist",
"delete"
],
"sellerId": "100161156",
"price": {
"price": 2499000,
"currentPrice": "Rp2.499.000"
},
"restriction": false,
"isGift": false,
"sku": {
"skuText": "Hitam",
"productVariant": "345695828_ID-359330058",
"brandId": "21734",
"skuId": "359330058"
},
"itemUrl": "https://example.com",
"cartItemId": 2081021134
},
"type": "biz"
}
}
This is what I have tried so far :
jq 'select(.cartItemId==2081021134)' input.json
but it returns nothing, how should I fix it ?

Answer 1

You have to go digging a little deeper. Feed the values of the object to select, and check .fields.cartItemId, not just .cartItemId.
jq '.[] | select(.fields.cartItemId == 2081021134)' input.json

Answer 2

This produces the desired output. Using with_entries makes it easy to retain the keys.
with_entries( if .value | has("fields")
then select(.value.fields.cartItemId == 2081021134)
else . end)