curl --request GET \
  --url https://api.reply.io/v3/sequences/{id}/contacts/filter/fields \
  --header 'Authorization: Bearer <token>'

import requests

url = "https://api.reply.io/v3/sequences/{id}/contacts/filter/fields"

headers = {"Authorization": "Bearer <token>"}

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

print(response.text)

const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}};

fetch('https://api.reply.io/v3/sequences/{id}/contacts/filter/fields', 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://api.reply.io/v3/sequences/{id}/contacts/filter/fields",
  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: Bearer <token>"
  ],
]);

$response = curl_exec($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://api.reply.io/v3/sequences/{id}/contacts/filter/fields"

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

	req.Header.Add("Authorization", "Bearer <token>")

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

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

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.get("https://api.reply.io/v3/sequences/{id}/contacts/filter/fields")
  .header("Authorization", "Bearer <token>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.reply.io/v3/sequences/{id}/contacts/filter/fields")

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

request = Net::HTTP::Get.new(url)
request["Authorization"] = 'Bearer <token>'

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

{
  "fields": [
    {
      "field": "statusInSequence",
      "label": "Status in sequence",
      "type": "enum",
      "values": [
        "active",
        "paused",
        "finished",
        "inactive",
        "outOfOffice"
      ],
      "operators": [
        {
          "operator": "equals",
          "valueType": "enum"
        },
        {
          "operator": "notEquals",
          "valueType": "enum"
        }
      ],
      "andOperators": [
        "equals",
        "notEquals"
      ],
      "orOperators": []
    },
    {
      "field": "hasOpened",
      "label": "Opened",
      "type": "boolean",
      "operators": [
        {
          "operator": "equals",
          "valueType": "boolean"
        }
      ],
      "andOperators": [],
      "orOperators": []
    }
  ]
}

{
  "title": "Unauthorized",
  "status": 401,
  "detail": "Authentication credentials are missing or invalid."
}

{
  "title": "Not Found",
  "status": 404,
  "detail": "Sequence 42 not found.",
  "code": "sequenceContact.sequenceNotFound"
}

{
  "title": "Too Many Requests",
  "status": 429,
  "detail": "API calls quota exceeded! maximum admitted 100 per 1m."
}