from cognite.client.data_classes.documents import SourceFileProperty
count = client.documents.aggregate_cardinality_properties(SourceFileProperty.metadata)
from cognite.client.data_classes.documents import DocumentProperty
count = client.documents.aggregate_cardinality_values(DocumentProperty.type)

from cognite.client.data_classes import filters
from cognite.client.data_classes.documents import DocumentProperty
is_plain_text = filters.Equals(DocumentProperty.mime_type, "text/plain")
plain_text_author_count = client.documents.aggregate_cardinality_values(DocumentProperty.author, filter=is_plain_text)

from cognite.client.data_classes.documents import DocumentProperty
from cognite.client.data_classes import aggregations
agg = aggregations
is_not_text = agg.Not(agg.Prefix("text"))
type_count_excluded_text = client.documents.aggregate_cardinality_values(DocumentProperty.type, aggregate_filter=is_not_text)
count = client.documents.aggregate_count()

from cognite.client.data_classes import filters
from cognite.client.data_classes.documents import DocumentProperty
is_pdf = filters.Equals(DocumentProperty.mime_type, "application/pdf")
pdf_count = client.documents.aggregate_count(filter=is_pdf)

client.documents.aggregate_count(
    filter=filters.InAssetSubtree(
        property=DocumentProperty.asset_external_ids,
        values=['Plant_1', 'Plant_2'],
    )
)
from cognite.client.data_classes.documents import SourceFileProperty
result = client.documents.aggregate_unique_values(SourceFileProperty.metadata)
from cognite.client.data_classes.documents import DocumentProperty
result = client.documents.aggregate_unique_values(DocumentProperty.mime_type)
unique_types = result.unique

from cognite.client.data_classes import filters
from cognite.client.data_classes.documents import DocumentProperty
is_abc = filters.Prefix(DocumentProperty.external_id, "abc")
result = client.documents.aggregate_unique_values(DocumentProperty.language, filter=is_abc)
unique_languages = result.unique

from cognite.client.data_classes.documents import DocumentProperty
from cognite.client.data_classes import aggregations
agg = aggregations
is_not_text = agg.Not(agg.Prefix("text"))
result = client.documents.aggregate_unique_values(DocumentProperty.mime_type, aggregate_filter=is_not_text)
unique_mime_types = result.unique

curl --request POST \
  --url https://{cluster}.cognitedata.com/api/v1/projects/{project}/documents/aggregate \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "filter": {
    "equals": {
      "property": [
        "type"
      ],
      "value": "PDF"
    }
  },
  "aggregate": "uniqueValues",
  "properties": [
    {
      "property": [
        "author"
      ]
    }
  ]
}
'

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    filter: {equals: {property: ['type'], value: 'PDF'}},
    aggregate: 'uniqueValues',
    properties: [{property: ['author']}]
  })
};

fetch('https://{cluster}.cognitedata.com/api/v1/projects/{project}/documents/aggregate', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://{cluster}.cognitedata.com/api/v1/projects/{project}/documents/aggregate",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'filter' => [
        'equals' => [
                'property' => [
                                'type'
                ],
                'value' => 'PDF'
        ]
    ],
    'aggregate' => 'uniqueValues',
    'properties' => [
        [
                'property' => [
                                'author'
                ]
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://{cluster}.cognitedata.com/api/v1/projects/{project}/documents/aggregate"

	payload := strings.NewReader("{\n  \"filter\": {\n    \"equals\": {\n      \"property\": [\n        \"type\"\n      ],\n      \"value\": \"PDF\"\n    }\n  },\n  \"aggregate\": \"uniqueValues\",\n  \"properties\": [\n    {\n      \"property\": [\n        \"author\"\n      ]\n    }\n  ]\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://{cluster}.cognitedata.com/api/v1/projects/{project}/documents/aggregate")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"filter\": {\n    \"equals\": {\n      \"property\": [\n        \"type\"\n      ],\n      \"value\": \"PDF\"\n    }\n  },\n  \"aggregate\": \"uniqueValues\",\n  \"properties\": [\n    {\n      \"property\": [\n        \"author\"\n      ]\n    }\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://{cluster}.cognitedata.com/api/v1/projects/{project}/documents/aggregate")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"filter\": {\n    \"equals\": {\n      \"property\": [\n        \"type\"\n      ],\n      \"value\": \"PDF\"\n    }\n  },\n  \"aggregate\": \"uniqueValues\",\n  \"properties\": [\n    {\n      \"property\": [\n        \"author\"\n      ]\n    }\n  ]\n}"

response = http.request(request)
puts response.read_body

{
  "items": [
    {
      "count": 10
    }
  ]
}

{
  "error": {
    "code": 401,
    "message": "Could not authenticate.",
    "missing": [
      {}
    ],
    "duplicated": [
      {}
    ]
  }
}