Adding One more Parent Attrubute To JSON through Command line - bash

Question

I want edit the structure of json through Terminal using terminal commands or scripts.
If I have a json file Structure like this:
{
"Helloo": [
{
"AlbumTitle": {
"S": "Famous"
},
"SongTitle": {
"S": "Call Me Today"
},
"Artist": {
"S": "No One You Know"
}
},
{
"AlbumTitle": {
"S": "Famous1"
},
"SongTitle": {
"S": "Call Me Today1"
},
"Artist": {
"S": "No One You Know11"
}
}
],
"Music": [
{
"Album": {
"S": "Pop Songs"
},
"Production": {
"S": "X-series"
},
"Song": {
"S": "Once upon
},
"Artist": {
"S": "XYZ"
}
}
]
}
So here i want add "Putrequest" and "Item" attributes to each item of the array.. So i want the output like this:
{
"Helloo": [
{
PutRequest":{
"Item":{
"AlbumTitle": {
"S": "Famous"
},
"SongTitle": {
"S": "Call Me Today"
},
"Artist": {
"S": "No One You Know"
}
}
}
},
{
PutRequest":{
"Item":{
"AlbumTitle": {
"S": "Famous1"
},
"SongTitle": {
"S": "Call Me Today1"
},
"Artist": {
"S": "No One You Know11"
}
}
}
}
],
"Music": [
{
PutRequest":{
"Item":{
"Album": {
"S": "Pop Songs"
},
"Production": {
"S": "X-series"
},
"Song": {
"S": "Once upon
},
"Artist": {
"S": "XYZ"
}
}
}
}
]
}
I tried to use Jq for this but still struggling.. Please help me To add these attributes to json using command prompt or bash/shell scripting.
Thanks

Answer 1

Assuming you actually got valid JSON the following jq expression might work for you:
map_values(map({"PutRequest": { "Item": .}}))
Usage:
jq 'map_values(map({"PutRequest": { "Item": .}}))' file.json
Breakdown:
map_values( # Map values iterate over an object and assign the
# returned value to the property
map( # Map iterate over an array and assign the returned value
# to the index, and creates a new array if an object is
# mapped
{ # Return an object
"PutRequest": { # With PutRequest as a property
"Item": . # And Item, which contains the value (.)
}
}
)
)