Set a contact custom field

import requests
import json

url = "https://app.bualpro.com/api/contacts/123/custom_fields/example_string"
headers = {
  "Content-Type": "application/x-www-form-urlencoded",
  "X-ACCESS-TOKEN": "YOUR_API_KEY"
}
data = {
  "value": "example_string"
}

response = requests.post(url, headers=headers, data=data)
print(response.json())

const params = new URLSearchParams();
params.append("value", "example_string");

const response = await fetch("https://app.bualpro.com/api/contacts/123/custom_fields/example_string", {
  method: "POST",
  headers: {
  "Content-Type": "application/x-www-form-urlencoded",
  "X-ACCESS-TOKEN": "YOUR_API_KEY"
},
  body: params
});

const data = await response.json();
console.log(data);

package main

import (
    "fmt"
    "net/http"
    "net/url"
    "strings"
)

func main() {
    data := url.Values{}
    data.Set("value", "example_string")

    req, err := http.NewRequest("POST", "https://app.bualpro.com/api/contacts/123/custom_fields/example_string", strings.NewReader(data.Encode()))
    if err != nil {
        panic(err)
    }

    req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
    req.Header.Set("X-ACCESS-TOKEN", "YOUR_API_KEY")

    client := &http.Client{}
    resp, err := client.Do(req)
    if err != nil {
        panic(err)
    }
    defer resp.Body.Close()

    fmt.Println("Response Status:", resp.Status)
}

require 'net/http'
require 'json'

uri = URI('https://app.bualpro.com/api/contacts/123/custom_fields/example_string')
http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = true

request = Net::HTTP::Post.new(uri)
request['Content-Type'] = 'application/x-www-form-urlencoded'
request['X-ACCESS-TOKEN'] = 'YOUR_API_KEY'
request.set_form([
  ["value", "example_string"]
], 'application/x-www-form-urlencoded')

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