Create instance

import requests
import json

url = "http://petstore.swagger.io/v1/instances"
headers = {
  "Content-Type": "application/json"
}

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

const response = await fetch("http://petstore.swagger.io/v1/instances", {
  method: "POST",
  headers: {
  "Content-Type": "application/json"
}
});

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

package main

import (
    "fmt"
    "net/http"
    "bytes"
)

func main() {
    
    req, err := http.NewRequest("POST", "http://petstore.swagger.io/v1/instances", nil)
    if err != nil {
        panic(err)
    }
    
    req.Header.Set("Content-Type", "application/json")

    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('http://petstore.swagger.io/v1/instances')
http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = true

request = Net::HTTP::Post.new(uri)
request['Content-Type'] = 'application/json'

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

{}