curl --request POST \
  --url https://app.launchdarkly.com/api/v2/projects/{projectKey}/environments/{environmentKey}/sdk-keys \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --header 'LD-API-Version: <ld-api-version>' \
  --data '
{
  "kind": "sdk",
  "name": "name",
  "description": "description",
  "viewKeys": [
    "viewKeys",
    "viewKeys"
  ],
  "expiry": 0,
  "key": "key"
}
'

import requests

url = "https://app.launchdarkly.com/api/v2/projects/{projectKey}/environments/{environmentKey}/sdk-keys"

payload = {
    "kind": "sdk",
    "name": "name",
    "description": "description",
    "viewKeys": ["viewKeys", "viewKeys"],
    "expiry": 0,
    "key": "key"
}
headers = {
    "LD-API-Version": "<ld-api-version>",
    "Authorization": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {
    'LD-API-Version': '<ld-api-version>',
    Authorization: '<api-key>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    kind: 'sdk',
    name: 'name',
    description: 'description',
    viewKeys: ['viewKeys', 'viewKeys'],
    expiry: 0,
    key: 'key'
  })
};

fetch('https://app.launchdarkly.com/api/v2/projects/{projectKey}/environments/{environmentKey}/sdk-keys', 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://app.launchdarkly.com/api/v2/projects/{projectKey}/environments/{environmentKey}/sdk-keys",
  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([
    'kind' => 'sdk',
    'name' => 'name',
    'description' => 'description',
    'viewKeys' => [
        'viewKeys',
        'viewKeys'
    ],
    'expiry' => 0,
    'key' => 'key'
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: <api-key>",
    "Content-Type: application/json",
    "LD-API-Version: <ld-api-version>"
  ],
]);

$response = curl_exec($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://app.launchdarkly.com/api/v2/projects/{projectKey}/environments/{environmentKey}/sdk-keys"

	payload := strings.NewReader("{\n  \"kind\": \"sdk\",\n  \"name\": \"name\",\n  \"description\": \"description\",\n  \"viewKeys\": [\n    \"viewKeys\",\n    \"viewKeys\"\n  ],\n  \"expiry\": 0,\n  \"key\": \"key\"\n}")

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

	req.Header.Add("LD-API-Version", "<ld-api-version>")
	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://app.launchdarkly.com/api/v2/projects/{projectKey}/environments/{environmentKey}/sdk-keys")
  .header("LD-API-Version", "<ld-api-version>")
  .header("Authorization", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"kind\": \"sdk\",\n  \"name\": \"name\",\n  \"description\": \"description\",\n  \"viewKeys\": [\n    \"viewKeys\",\n    \"viewKeys\"\n  ],\n  \"expiry\": 0,\n  \"key\": \"key\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://app.launchdarkly.com/api/v2/projects/{projectKey}/environments/{environmentKey}/sdk-keys")

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

request = Net::HTTP::Post.new(url)
request["LD-API-Version"] = '<ld-api-version>'
request["Authorization"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"kind\": \"sdk\",\n  \"name\": \"name\",\n  \"description\": \"description\",\n  \"viewKeys\": [\n    \"viewKeys\",\n    \"viewKeys\"\n  ],\n  \"expiry\": 0,\n  \"key\": \"key\"\n}"

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

{
  "isDefault": true,
  "_links": {
    "parent": {
      "href": "href",
      "type": "type"
    },
    "self": {
      "href": "href",
      "type": "type"
    }
  },
  "kind": "sdk",
  "_createdAt": 6,
  "name": "name",
  "description": "description",
  "expiry": 0,
  "value": "value",
  "_updatedAt": 1,
  "_version": 5,
  "key": "key",
  "_createdByMemberId": "_createdByMemberId"
}

{
  "code": "code",
  "message": "message"
}

{
  "code": "code",
  "message": "message"
}

{
  "code": "code",
  "message": "message"
}

{
  "code": "code",
  "message": "message"
}

{
  "code": "code",
  "message": "message"
}