get all folder-ids in my account in Nebius cloud? - jq

Question

Using nebius-cloud-cli I am trying to list only name and id of all folders in my account.
I tried this:
yc vpc networks list --format json | jq ".[] "
The output I got was:
{
"id": "ccm979ujel7gpcq6aulc",
"folder_id": "b489aa1fe17nphuomth8",
"created_at": "2022-12-12T17:47:24Z",
"name": "default",
"description": "Auto-created network"
}
{
"id": "ccmn8qvg1uaaaiblc05e",
"folder_id": "b4aaav1fe1gnphuomth8",
"created_at": "2022-12-29T12:07:40Z",
"name": "my-network"
}
{
"id": "campid2asepq3bc68fn6",
"folder_id": "b489kv3ae1ga1huomth8",
"created_at": "2021-12-18T09:54:01Z",
"name": "my-nw",
"description": "Auto-created network"
}
Expected output:
[
{"name": "default",
"folder_id": "b4aaav1fe1gnphuomth8"
},
{"name": my-nw,
"folder_id": "b489kv3ae1ga1huomth8"
}
]
Try it out
The output I got is a multi line non standard JSON coming from this output, and needs to be handled correctly.
I'm looking for a simple transformation, not redirection and awks and stuff like this << in bash which defeats the purpose.

Answer 1

Use map({ name, folder_id }) with --slurp:
command | jq --slurp 'map({ name, folder_id })'
--slurp
Instead of running the filter for each JSON object in the input, read the entire input stream into a large array and run the filter just once.
Documentation
Input:
{
"id": "ccm979ujel7gpcq6aulc",
"folder_id": "b489aa1fe17nphuomth8",
"created_at": "2022-12-12T17:47:24Z",
"name": "default",
"description": "Auto-created network"
}
{
"id": "ccmn8qvg1uaaaiblc05e",
"folder_id": "b4aaav1fe1gnphuomth8",
"created_at": "2022-12-29T12:07:40Z",
"name": "my-network"
}
{
"id": "campid2asepq3bc68fn6",
"folder_id": "b489kv3ae1ga1huomth8",
"created_at": "2021-12-18T09:54:01Z",
"name": "my-nw",
"description": "Auto-created network"
}
Output
[
{
"name": "default",
"folder_id": "b489aa1fe17nphuomth8"
},
{
"name": "my-network",
"folder_id": "b4aaav1fe1gnphuomth8"
},
{
"name": "my-nw",
"folder_id": "b489kv3ae1ga1huomth8"
}
]
Demo
JqPlay Demo

Answer 2

Since you use .[] in your question, this makes me think the output of the command is an array. Use map to apply a transformation to each item in the array:
$ yc ...
[
{...},
{...}
]
$ yc ... | jq 'map({ name, folder_id })'
[
{...},
{...}
]
.[] streams all items of an array. To transform the stream, use the object construction without map:
$ yc ...
[
{...},
{...}
]
$ yc ... | jq '.[] | { name, folder_id }'
{...}
{...}
Or if yc outputs multiple JSON objects, then don't stream and transform directly:
$ yc ...
{...}
{...}
$ yc ... | jq '{ name, folder_id }'
{...}
{...}
If the output of yc is actually a single object with multiple properties, you can still use map like with a regular array; it will automatically return the properties' values only:
$ yc ...
{
"a": {...},
"b": {...}
}
$ yc ... | jq 'map({ name, folder_id })'
[
{...},
{...}
]
If yc outputs multiple JSON objects and you need the output to be an array, then slurp the input with -s/--slurp into one big array and then apply the map operation:
$ yc ...
{...}
{...}
$ yc ... | jq -s 'map({ name, folder_id })'
[
{...},
{...}
]

Answer 3

Assuming calling yc vpc networks list --format json just by itself produces something structured like
{
"networks": [
{
"id": "4e8a4034-a973-4f1f-84a8-73ea54adcee1",
"name": "my-network",
"description": "My network",
"created_at": "2022-01-01T00:00:00Z",
"folder_id": "b1g7f0d3-2e0a-4714-ba6a-b1g7f0d32e0a",
"vpc_id": "b1g7f0d3-2e0a-4714-ba6a-b1g7f0d32e0a",
"region_id": "ru-central1"
}
]
}
Then piping this into jq '.networks | map({name, folder_id})' would give you
[
{
"name": "my-network",
"folder_id": "b1g7f0d3-2e0a-4714-ba6a-b1g7f0d32e0a"
}
]
Demo