curl --request POST \
  --url https://services.meetchase.ai/api/v1/campaigns/{campaign_id}/contacts/upload-and-start \
  --header 'Content-Type: application/json' \
  --header 'X-API-Key: <api-key>' \
  --data '
{
  "city": "London",
  "country": "United Kingdom",
  "custom_data": {
    "age": 26,
    "role": "Sales Manager"
  },
  "email": "tara@example.com",
  "first_name": "Tara",
  "last_name": "Williams",
  "tags": [
    "finance",
    "manager"
  ]
}
'

import requests

url = "https://services.meetchase.ai/api/v1/campaigns/{campaign_id}/contacts/upload-and-start"

payload = {
    "city": "London",
    "country": "United Kingdom",
    "custom_data": {
        "age": 26,
        "role": "Sales Manager"
    },
    "email": "tara@example.com",
    "first_name": "Tara",
    "last_name": "Williams",
    "tags": ["finance", "manager"]
}
headers = {
    "X-API-Key": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {'X-API-Key': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    city: 'London',
    country: 'United Kingdom',
    custom_data: {age: 26, role: 'Sales Manager'},
    email: 'tara@example.com',
    first_name: 'Tara',
    last_name: 'Williams',
    tags: ['finance', 'manager']
  })
};

fetch('https://services.meetchase.ai/api/v1/campaigns/{campaign_id}/contacts/upload-and-start', 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://services.meetchase.ai/api/v1/campaigns/{campaign_id}/contacts/upload-and-start",
  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([
    'city' => 'London',
    'country' => 'United Kingdom',
    'custom_data' => [
        'age' => 26,
        'role' => 'Sales Manager'
    ],
    'email' => 'tara@example.com',
    'first_name' => 'Tara',
    'last_name' => 'Williams',
    'tags' => [
        'finance',
        'manager'
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "X-API-Key: <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"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://services.meetchase.ai/api/v1/campaigns/{campaign_id}/contacts/upload-and-start"

	payload := strings.NewReader("{\n  \"city\": \"London\",\n  \"country\": \"United Kingdom\",\n  \"custom_data\": {\n    \"age\": 26,\n    \"role\": \"Sales Manager\"\n  },\n  \"email\": \"tara@example.com\",\n  \"first_name\": \"Tara\",\n  \"last_name\": \"Williams\",\n  \"tags\": [\n    \"finance\",\n    \"manager\"\n  ]\n}")

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

	req.Header.Add("X-API-Key", "<api-key>")
	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://services.meetchase.ai/api/v1/campaigns/{campaign_id}/contacts/upload-and-start")
  .header("X-API-Key", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"city\": \"London\",\n  \"country\": \"United Kingdom\",\n  \"custom_data\": {\n    \"age\": 26,\n    \"role\": \"Sales Manager\"\n  },\n  \"email\": \"tara@example.com\",\n  \"first_name\": \"Tara\",\n  \"last_name\": \"Williams\",\n  \"tags\": [\n    \"finance\",\n    \"manager\"\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://services.meetchase.ai/api/v1/campaigns/{campaign_id}/contacts/upload-and-start")

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

request = Net::HTTP::Post.new(url)
request["X-API-Key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"city\": \"London\",\n  \"country\": \"United Kingdom\",\n  \"custom_data\": {\n    \"age\": 26,\n    \"role\": \"Sales Manager\"\n  },\n  \"email\": \"tara@example.com\",\n  \"first_name\": \"Tara\",\n  \"last_name\": \"Williams\",\n  \"tags\": [\n    \"finance\",\n    \"manager\"\n  ]\n}"

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

{
  "id": 123
}

{
  "detail": [
    {
      "loc": [
        "<string>"
      ],
      "msg": "<string>",
      "type": "<string>"
    }
  ]
}