curl -X POST "https://api.phrase.com/v2/projects/:project_id/keys/:id/key_links" \
  -u USERNAME_OR_ACCESS_TOKEN \
  -H "Content-Type: application/json" \
  -d '{"child_key_ids": ["ijkl9012mnop3456ijkl9012mnop3456", "abcd1234efgh5678abcd1234efgh5678"]}'

import requests

url = "https://api.phrase.com/v2/projects/{project_id}/keys/{id}/key_links"

payload = { "child_key_ids": ["ijkl9012mnop3456ijkl9012mnop3456", "abcd1234efgh5678abcd1234efgh5678"] }
headers = {
    "Authorization": "<api-key>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    child_key_ids: ['ijkl9012mnop3456ijkl9012mnop3456', 'abcd1234efgh5678abcd1234efgh5678']
  })
};

fetch('https://api.phrase.com/v2/projects/{project_id}/keys/{id}/key_links', 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://api.phrase.com/v2/projects/{project_id}/keys/{id}/key_links",
  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([
    'child_key_ids' => [
        'ijkl9012mnop3456ijkl9012mnop3456',
        'abcd1234efgh5678abcd1234efgh5678'
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: <api-key>",
    "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://api.phrase.com/v2/projects/{project_id}/keys/{id}/key_links"

	payload := strings.NewReader("{\n  \"child_key_ids\": [\n    \"ijkl9012mnop3456ijkl9012mnop3456\",\n    \"abcd1234efgh5678abcd1234efgh5678\"\n  ]\n}")

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

	req.Header.Add("Authorization", "<api-key>")
	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://api.phrase.com/v2/projects/{project_id}/keys/{id}/key_links")
  .header("Authorization", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"child_key_ids\": [\n    \"ijkl9012mnop3456ijkl9012mnop3456\",\n    \"abcd1234efgh5678abcd1234efgh5678\"\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.phrase.com/v2/projects/{project_id}/keys/{id}/key_links")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"child_key_ids\": [\n    \"ijkl9012mnop3456ijkl9012mnop3456\",\n    \"abcd1234efgh5678abcd1234efgh5678\"\n  ]\n}"

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

{
  "created_at": "2024-03-15T10:22:00Z",
  "updated_at": "2024-03-15T10:22:00Z",
  "created_by": {
    "id": "usr1a2b3c4d5e6f7a8b9c",
    "username": "jane.doe",
    "name": "Jane Doe",
    "gravatar_uid": "a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4"
  },
  "updated_by": {
    "id": "usr1a2b3c4d5e6f7a8b9c",
    "username": "jane.doe",
    "name": "Jane Doe",
    "gravatar_uid": "a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4"
  },
  "account": {
    "id": "acct9z8y7x6w5v4u3t2s",
    "name": "Acme Translations",
    "slug": "acme-translations",
    "company": "Acme Corp",
    "created_at": "2023-01-10T08:00:00Z",
    "updated_at": "2023-06-01T12:00:00Z",
    "company_logo_url": "https://example.com/logos/acme.png"
  },
  "parent": {
    "id": "ijkl9012mnop3456ijkl9012",
    "name": "home.hero.title",
    "plural": false,
    "use_ordinal_rules": false,
    "data_type": "string",
    "tags": [
      "ui",
      "homepage"
    ]
  },
  "children": [
    {
      "id": "ijkl9012mnop3456ijkl9012mnop3456",
      "name": "home.hero.title_short",
      "plural": false,
      "use_ordinal_rules": false,
      "data_type": "string",
      "tags": [
        "ui",
        "homepage"
      ]
    },
    {
      "id": "abcd1234efgh5678abcd1234efgh5678",
      "name": "home.hero.title_long",
      "plural": false,
      "use_ordinal_rules": false,
      "data_type": "string",
      "tags": [
        "ui",
        "homepage"
      ]
    }
  ]
}

{
  "message": "Validation Failed",
  "errors": [
    {
      "resource": "Resource",
      "field": "name",
      "message": "can't be blank"
    }
  ]
}