curl --request POST \
  --url https://backstage.example.com/api/soundcheck/campaigns/entities \
  --header 'Content-Type: application/json' \
  --data '
{
  "campaignId": "<string>",
  "campaignName": "<string>",
  "checkId": "<string>",
  "checkName": "<string>",
  "checkStates": [],
  "entityFilter": {},
  "entityFields": [
    "<string>"
  ],
  "metadataAnnotations": [
    "<string>"
  ],
  "first": 123,
  "after": "<string>"
}
'

import requests

url = "https://backstage.example.com/api/soundcheck/campaigns/entities"

payload = {
    "campaignId": "<string>",
    "campaignName": "<string>",
    "checkId": "<string>",
    "checkName": "<string>",
    "checkStates": [],
    "entityFilter": {},
    "entityFields": ["<string>"],
    "metadataAnnotations": ["<string>"],
    "first": 123,
    "after": "<string>"
}
headers = {"Content-Type": "application/json"}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {'Content-Type': 'application/json'},
  body: JSON.stringify({
    campaignId: '<string>',
    campaignName: '<string>',
    checkId: '<string>',
    checkName: '<string>',
    checkStates: [],
    entityFilter: {},
    entityFields: ['<string>'],
    metadataAnnotations: ['<string>'],
    first: 123,
    after: '<string>'
  })
};

fetch('https://backstage.example.com/api/soundcheck/campaigns/entities', 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://backstage.example.com/api/soundcheck/campaigns/entities",
  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([
    'campaignId' => '<string>',
    'campaignName' => '<string>',
    'checkId' => '<string>',
    'checkName' => '<string>',
    'checkStates' => [
        
    ],
    'entityFilter' => [
        
    ],
    'entityFields' => [
        '<string>'
    ],
    'metadataAnnotations' => [
        '<string>'
    ],
    'first' => 123,
    'after' => '<string>'
  ]),
  CURLOPT_HTTPHEADER => [
    "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://backstage.example.com/api/soundcheck/campaigns/entities"

	payload := strings.NewReader("{\n  \"campaignId\": \"<string>\",\n  \"campaignName\": \"<string>\",\n  \"checkId\": \"<string>\",\n  \"checkName\": \"<string>\",\n  \"checkStates\": [],\n  \"entityFilter\": {},\n  \"entityFields\": [\n    \"<string>\"\n  ],\n  \"metadataAnnotations\": [\n    \"<string>\"\n  ],\n  \"first\": 123,\n  \"after\": \"<string>\"\n}")

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

	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://backstage.example.com/api/soundcheck/campaigns/entities")
  .header("Content-Type", "application/json")
  .body("{\n  \"campaignId\": \"<string>\",\n  \"campaignName\": \"<string>\",\n  \"checkId\": \"<string>\",\n  \"checkName\": \"<string>\",\n  \"checkStates\": [],\n  \"entityFilter\": {},\n  \"entityFields\": [\n    \"<string>\"\n  ],\n  \"metadataAnnotations\": [\n    \"<string>\"\n  ],\n  \"first\": 123,\n  \"after\": \"<string>\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://backstage.example.com/api/soundcheck/campaigns/entities")

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

request = Net::HTTP::Post.new(url)
request["Content-Type"] = 'application/json'
request.body = "{\n  \"campaignId\": \"<string>\",\n  \"campaignName\": \"<string>\",\n  \"checkId\": \"<string>\",\n  \"checkName\": \"<string>\",\n  \"checkStates\": [],\n  \"entityFilter\": {},\n  \"entityFields\": [\n    \"<string>\"\n  ],\n  \"metadataAnnotations\": [\n    \"<string>\"\n  ],\n  \"first\": 123,\n  \"after\": \"<string>\"\n}"

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

{
  "totalCount": 123,
  "pageInfo": {
    "hasNextPage": true,
    "hasPreviousPage": true,
    "startCursor": "<string>",
    "endCursor": "<string>"
  },
  "edges": [
    {
      "node": {
        "entityRef": "<string>",
        "certified": true,
        "checkStates": [
          {
            "checkId": "<string>",
            "checkName": "<string>"
          }
        ],
        "entity": {}
      }
    }
  ]
}

{
  "error": {
    "name": "<string>",
    "message": "<string>"
  },
  "response": {
    "statusCode": 123
  },
  "request": {
    "method": "<string>",
    "url": "<string>"
  }
}