我有一个JSON对象数组,其格式如下:
[
{
"id": 1,
"names": [
{
"name": "Bulbasaur",
"language": {
"name": "en",
"url": "http://myserver.com:8000/api/v2/language/9/"
}
},
],
},
{
"id": 1,
"types": [
{
"slot": 1,
"type": {
"name": "grass",
"url": "http://myserver.com:8000/api/v2/type/12/"
}
},
{
"slot": 2,
"type": {
"name": "poison",
"url": "http://myserver.com:8000/api/v2/type/4/"
}
}
]
},
{
"id": 2,
"names": [
{
"name": "Ivysaur",
"language": {
"name": "en",
"url": "http://myserver.com:8000/api/v2/language/9/"
}
},
],
},
{
"id": 2,
"types": [
{
"slot": 1,
"type": {
"name": "ice",
"url": "http://myserver.com:8000/api/v2/type/10/"
}
},
{
"slot": 2,
"type": {
"name": "electric",
"url": "http://myserver.com:8000/api/v2/type/8/"
}
}
]
},
{
"id": 3,
"names": [
{
"name": "Venusaur",
"language": {
"name": "en",
"url": "http://myserver.com:8000/api/v2/language/9/"
}
},
],
},
{
"id": 3,
"types": [
{
"slot": 1,
"type": {
"name": "ground",
"url": "http://myserver.com:8000/api/v2/type/2/"
}
},
{
"slot": 2,
"type": {
"name": "rock",
"url": "http://myserver.com:8000/api/v2/type/3/"
}
}
]
}
]
请注意,这些是成对的分离对象,它们按顺序出现在JSON数组中,每对共享一个id
字段。此模式在数组中重复数百次。我需要完成的是将每个id
共享对“合并”到一个对象中。因此,结果输出将是
[
{
"id": 1,
"names": [
{
"name": "Bulbasaur",
"language": {
"name": "en",
"url": "http://myserver.com:8000/api/v2/language/9/"
}
},
],
"types": [
{
"slot": 1,
"type": {
"name": "grass",
"url": "http://myserver.com:8000/api/v2/type/12/"
}
},
{
"slot": 2,
"type": {
"name": "poison",
"url": "http://myserver.com:8000/api/v2/type/4/"
}
}
]
},
{
"id": 2,
"names": [
{
"name": "Ivysaur",
"language": {
"name": "en",
"url": "http://myserver.com:8000/api/v2/language/9/"
}
},
],
"types": [
{
"slot": 1,
"type": {
"name": "ice",
"url": "http://myserver.com:8000/api/v2/type/10/"
}
},
{
"slot": 2,
"type": {
"name": "electric",
"url": "http://myserver.com:8000/api/v2/type/8/"
}
}
]
},
{
"id": 3,
"names": [
{
"name": "Venusaur",
"language": {
"name": "en",
"url": "http://myserver.com:8000/api/v2/language/9/"
}
},
],
"types": [
{
"slot": 1,
"type": {
"name": "ground",
"url": "http://myserver.com:8000/api/v2/type/2/"
}
},
{
"slot": 2,
"type": {
"name": "rock",
"url": "http://myserver.com:8000/api/v2/type/3/"
}
}
]
}
]
我已经通过group_by(.id)
命令使这些对象彼此并排出现,但是我对如何实际组合它们感到困惑。我仍然是jq
的新手,所以我对可能的解决方案不知所措。
答案 0 :(得分:2)
[注意:以下假设Q中显示的数据已更正,因此它们是有效的JSON。]
所需的合并可以通过对象添加(x + y
)来实现。例如,给定问题中所示的两个JSON对象(即作为流),您可以编写:
jq -s '.[0] + .[1]'
但是,由于该问题还表明这些对象实际上位于数组中,因此让我们接下来考虑具有两个对象的数组的情况。在这种情况下,您只需写:
jq add
最后,如果您有一个数组数组,每个数组都是对象数组,则可以使用map(add)
。由于您没有非常大的数组,因此可以简单地编写:
group_by(.id) | map(add)
请注意,jq以非交换方式定义对象添加。具体来说,偏向最右边的键。