curl --request GET \
  --url https://app.launchdarkly.com/api/v2/segments/{projectKey}/{environmentKey} \
  --header 'Authorization: <api-key>'

import requests

url = "https://app.launchdarkly.com/api/v2/segments/{projectKey}/{environmentKey}"

headers = {"Authorization": "<api-key>"}

response = requests.get(url, headers=headers)

print(response.text)

const options = {method: 'GET', headers: {Authorization: '<api-key>'}};

fetch('https://app.launchdarkly.com/api/v2/segments/{projectKey}/{environmentKey}', 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/segments/{projectKey}/{environmentKey}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "Authorization: <api-key>"
  ],
]);

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

curl_close($curl);

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

package main

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

func main() {

	url := "https://app.launchdarkly.com/api/v2/segments/{projectKey}/{environmentKey}"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("Authorization", "<api-key>")

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

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

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.get("https://app.launchdarkly.com/api/v2/segments/{projectKey}/{environmentKey}")
  .header("Authorization", "<api-key>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://app.launchdarkly.com/api/v2/segments/{projectKey}/{environmentKey}")

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

request = Net::HTTP::Get.new(url)
request["Authorization"] = '<api-key>'

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

{
  "items": [
    {
      "name": "Example segment",
      "tags": [
        "testing"
      ],
      "creationDate": "1654104600000",
      "lastModifiedDate": "1654104600000",
      "key": "segment-key-123abc",
      "_links": {},
      "rules": [
        {
          "_id": "1234a56b7c89d012345e678f",
          "clauses": [
            {
              "_id": "12ab3c45de678910fab12345",
              "attribute": "email",
              "negate": false,
              "op": "endsWith",
              "values": [
                ".edu"
              ]
            }
          ]
        }
      ],
      "version": 1,
      "deleted": false,
      "generation": 123,
      "description": "Bundle our sample customers together",
      "included": [
        "user-key-123abc"
      ],
      "excluded": [
        "user-key-123abc"
      ],
      "includedContexts": [
        {
          "values": [
            "<string>"
          ],
          "contextKind": "<string>"
        }
      ],
      "excludedContexts": [
        {
          "values": [
            "<string>"
          ],
          "contextKind": "<string>"
        }
      ],
      "_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>"
            }
          }
        ]
      },
      "_flags": [
        {
          "name": "Example flag",
          "key": "flag-key-123abc",
          "_links": {},
          "_site": {
            "href": "<string>",
            "type": "<string>"
          }
        }
      ],
      "unbounded": false,
      "unboundedContextKind": "<string>",
      "_unboundedMetadata": {
        "envId": "<string>",
        "segmentId": "<string>",
        "version": 123,
        "includedCount": 123,
        "excludedCount": 123,
        "lastModified": 123,
        "deleted": true
      },
      "_external": "amplitude",
      "_externalLink": "https://analytics.amplitude.com/org/1234/cohort/123abc",
      "_importInProgress": false
    }
  ],
  "_links": {},
  "totalCount": 123
}

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

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