curl --request POST \
  --url https://api.lemlist.com/api/database/personas \
  --header 'Authorization: Basic <encoded-value>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "name": "SaaS founders",
  "mode": "leads",
  "filters": [
    {
      "filterId": "currentTitle",
      "in": [
        "Founder"
      ],
      "out": []
    },
    {
      "filterId": "country",
      "in": [
        "France"
      ],
      "out": []
    }
  ]
}
'

import requests

url = "https://api.lemlist.com/api/database/personas"

payload = {
    "name": "SaaS founders",
    "mode": "leads",
    "filters": [
        {
            "filterId": "currentTitle",
            "in": ["Founder"],
            "out": []
        },
        {
            "filterId": "country",
            "in": ["France"],
            "out": []
        }
    ]
}
headers = {
    "Authorization": "Basic <encoded-value>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Basic <encoded-value>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    name: 'SaaS founders',
    mode: 'leads',
    filters: [
      {filterId: 'currentTitle', in: ['Founder'], out: []},
      {filterId: 'country', in: ['France'], out: []}
    ]
  })
};

fetch('https://api.lemlist.com/api/database/personas', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

require 'uri'
require 'net/http'

url = URI("https://api.lemlist.com/api/database/personas")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Basic <encoded-value>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"name\": \"SaaS founders\",\n  \"mode\": \"leads\",\n  \"filters\": [\n    {\n      \"filterId\": \"currentTitle\",\n      \"in\": [\n        \"Founder\"\n      ],\n      \"out\": []\n    },\n    {\n      \"filterId\": \"country\",\n      \"in\": [\n        \"France\"\n      ],\n      \"out\": []\n    }\n  ]\n}"

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

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.lemlist.com/api/database/personas",
  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([
    'name' => 'SaaS founders',
    'mode' => 'leads',
    'filters' => [
        [
                'filterId' => 'currentTitle',
                'in' => [
                                'Founder'
                ],
                'out' => [
                                
                ]
        ],
        [
                'filterId' => 'country',
                'in' => [
                                'France'
                ],
                'out' => [
                                
                ]
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Basic <encoded-value>",
    "Content-Type: application/json"
  ],
]);

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

curl_close($curl);

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