curl --request PATCH \
  --url https://app.launchdarkly.com/api/v2/applications/{applicationKey} \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '
[
  {
    "op": "replace",
    "path": "/description",
    "value": "Updated description"
  }
]
'

import requests

url = "https://app.launchdarkly.com/api/v2/applications/{applicationKey}"

payload = [
    {
        "op": "replace",
        "path": "/description",
        "value": "Updated description"
    }
]
headers = {
    "Authorization": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'PATCH',
  headers: {Authorization: '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify([{op: 'replace', path: '/description', value: 'Updated description'}])
};

fetch('https://app.launchdarkly.com/api/v2/applications/{applicationKey}', 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/applications/{applicationKey}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "PATCH",
  CURLOPT_POSTFIELDS => json_encode([
    [
        'op' => 'replace',
        'path' => '/description',
        'value' => 'Updated description'
    ]
  ]),
  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://app.launchdarkly.com/api/v2/applications/{applicationKey}"

	payload := strings.NewReader("[\n  {\n    \"op\": \"replace\",\n    \"path\": \"/description\",\n    \"value\": \"Updated description\"\n  }\n]")

	req, _ := http.NewRequest("PATCH", 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.patch("https://app.launchdarkly.com/api/v2/applications/{applicationKey}")
  .header("Authorization", "<api-key>")
  .header("Content-Type", "application/json")
  .body("[\n  {\n    \"op\": \"replace\",\n    \"path\": \"/description\",\n    \"value\": \"Updated description\"\n  }\n]")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://app.launchdarkly.com/api/v2/applications/{applicationKey}")

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

request = Net::HTTP::Patch.new(url)
request["Authorization"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "[\n  {\n    \"op\": \"replace\",\n    \"path\": \"/description\",\n    \"value\": \"Updated description\"\n  }\n]"

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

{
  "autoAdded": true,
  "key": "com.launchdarkly.cafe",
  "kind": "mobile",
  "name": "LaunchDarklyCafe",
  "flags": {
    "items": [
      {
        "name": "Example flag",
        "key": "flag-key-123abc",
        "_links": {},
        "_site": {
          "href": "<string>",
          "type": "<string>"
        }
      }
    ],
    "totalCount": 1,
    "_links": {}
  },
  "_access": {
    "denied": [
      {
        "action": "<string>",
        "reason": {
          "effect": "allow",
          "resources": [
            "proj/*:env/*;qa_*:/flag/*"
          ],
          "notResources": [
            "<string>"
          ],
          "actions": [
            "*"
          ],
          "notActions": [
            "<string>"
          ],
          "role_name": "<string>"
        }
      }
    ],
    "allowed": [
      {
        "action": "<string>",
        "reason": {
          "effect": "allow",
          "resources": [
            "proj/*:env/*;qa_*:/flag/*"
          ],
          "notResources": [
            "<string>"
          ],
          "actions": [
            "*"
          ],
          "notActions": [
            "<string>"
          ],
          "role_name": "<string>"
        }
      }
    ]
  },
  "_links": {},
  "_version": 123,
  "creationDate": "1654104600000",
  "description": "The LaunchDarkly Cafe app",
  "_maintainer": {
    "member": {
      "_links": {
        "self": {
          "href": "/api/v2/members/569f183514f4432160000007",
          "type": "application/json"
        }
      },
      "_id": "569f183514f4432160000007",
      "role": "admin",
      "email": "ariel@acme.com",
      "firstName": "Ariel",
      "lastName": "Flores"
    },
    "team": {
      "customRoleKeys": [
        "access-to-test-projects"
      ],
      "key": "team-key-123abc",
      "name": "QA Team",
      "_links": {}
    }
  }
}

{
  "code": "invalid_request",
  "message": "Invalid request body"
}

{
  "code": "unauthorized",
  "message": "Invalid access token"
}

{
  "code": "forbidden",
  "message": "Forbidden. Access to the requested resource was denied."
}

{
  "code": "not_found",
  "message": "Invalid resource identifier"
}

{
  "code": "rate_limited",
  "message": "You've exceeded the API rate limit. Try again later."
}