Code Examples

Below you will find code examples in various programming languages that can be used to make an API request to look up an individual User-Agent string. Programming language examples currently include PHP, Python, Nodejs, jQuery, Go and Ruby.

Code Example - PHP

$query = http_build_query([\n  'access_key' => 'YOUR_ACCESS_KEY',\n  'ua' => 'Mozilla/5.0 (iPad; CPU OS 9_3_2 like Mac OS X) AppleWebKit/601.1.46 (KHTML, like Gecko) Version/9.0 Mobile/13F69 Safari/601.1',\n]);\n\n$ch = curl_init('https://api.userstack.com/detect?' . $query);\ncurl_setopt($ch, CURLOPT_RETURNTRANSFER, true);\n\n$json = curl_exec($ch);\ncurl_close($ch);\n\n$api_result = json_decode($json, true);\n\nif ($api_result['device']['type'] === 'tablet') {\n  echo \"It's a tablet\";\n}

Code Example - Python

import requests\n\nparams = {\n  'access_key': 'YOUR_ACCESS_KEY',\n  'ua': 'Mozilla/5.0 (iPad; CPU OS 9_3_2 like Mac OS X) AppleWebKit/601.1.46 (KHTML, like Gecko) Version/9.0 Mobile/13F69 Safari/601.1'\n}\n\napi_result = requests.get('http://api.userstack.com/detect', params)\n\nif api_result.json()['device']['type'] == 'tablet':\n  print \"It's a tablet\";

Code Example - Nodejs

const http = require('http');\nconst querystring = require('querystring');\n\nlet query = {\n  access_key: 'YOUR_ACCESS_KEY',\n  ua: 'Mozilla/5.0 (iPad; CPU OS 9_3_2 like Mac OS X) AppleWebKit/601.1.46 (KHTML, like Gecko) Version/9.0 Mobile/13F69 Safari/601.1'\n};\n\nhttp.get(`http://api.userstack.com/detect?${querystring.stringify(query)}`, response => {\n  let data = '';\n\n  response.on('data', chunk => data += chunk);\n\n  response.on('end', () => {\n    let api_response = JSON.parse(data);\n\n    if(api_response.device && api_response.device.type === 'tablet') {\n      console.log('It\\'s a tablet.');\n    }\n  });\n});

Code Example - jQuery

$.ajax({\n  url: 'https://api.userstack.com/detect',\n  data: {\n    access_key: 'YOUR_ACCESS_KEY',\n    ua: 'Mozilla/5.0 (iPad; CPU OS 9_3_2 like Mac OS X) AppleWebKit/601.1.46 (KHTML, like Gecko) Version/9.0 Mobile/13F69 Safari/601.1'\n  },\n  dataType: 'jsonp',\n  success: function(json) {\n    if (json.device && json.device.type == 'tablet') {\n      console.log(\"It's a tablet.\");\n    }\n  }\n});

Code Example - Go

package main\n\nimport (\n  \"encoding/json\"\n  \"fmt\"\n  \"net/http\"\n)\n\ntype Device struct {\n  Type string\n}\n\ntype Response struct {\n  Success bool\n  Device Device\n}\n\nfunc main() {\n  httpClient := http.Client{}\n\n  req, err := http.NewRequest(\"GET\", \"http://api.userstack.com/detect\", nil)\n  if err != nil {\n    panic(err)\n  }\n\n  q := req.URL.Query()\n  q.Add(\"access_key\", \"YOUR_ACCESS_KEY\")\n  q.Add(\"ua\", \"Mozilla/5.0 (iPad; CPU OS 9_3_2 like Mac OS X) AppleWebKit/601.1.46 (KHTML, like Gecko) Version/9.0 Mobile/13F69 Safari/601.1\")\n  req.URL.RawQuery = q.Encode()\n\n  res, err := httpClient.Do(req)\n  if err != nil {\n    panic(err)\n  }\n  defer res.Body.Close()\n\n  response := Response{}\n  json.NewDecoder(res.Body).Decode(&response)\n\n  if(response.Device.Type == \"tablet\") {\n    fmt.Printf(\"It's a tablet.\")\n  }\n}

Code Example - Ruby

require 'net/http'\nrequire 'json'\n\nparams = {\n  :access_key => \"YOUR_ACCESS_KEY\",\n  :ua => \"Mozilla/5.0 (iPad; CPU OS 9_3_2 like Mac OS X) AppleWebKit/601.1.46 (KHTML, like Gecko) Version/9.0 Mobile/13F69 Safari/601.1\"\n}\nuri = URI('http://api.userstack.com/detect')\nuri.query = URI.encode_www_form(params)\nresponse = Net::HTTP.get(uri)\njson = JSON.parse(response)\nif json['device']['type'] == 'tablet'\n  print(\"It's a tablet.\")\nend

\n\n

\n\n\n\n \n Questions? \n \n Contact Sales\n .\n\n

\n\n\n\n \n Need help? \n \n Contact Support\n .\n\n

\n\n \n\n \n

","contentUpdatedAt","Wed, 05 Nov 2025 15:17:34 GMT","generatorLanguages","SHUBApiDetails","exploreUrl","currentToc",{"_71":406,"_407":434,"_401":435,"_410":436,"_157":513},[],"shubUrl","apiRenderer","TOGGLE","routingSettings",{"_519":520,"_521":17},"routing","browser","credentialsEnabled","isTemplatePreview","metaInfo",{"_525":526,"_194":195,"_401":527},"canonicalUrl","https://docs.apilayer.com/userstack/docs/code-examples","Code Examples | Userstack | APILayer ","actionData","errors"]