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

import requests

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

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}/{segmentKey}', 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}/{segmentKey}",
  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}/{segmentKey}"

	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}/{segmentKey}")
  .header("Authorization", "<api-key>")
  .asString();

require 'uri'
require 'net/http'

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

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

{
  "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
}

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

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

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