Fetch a single variable definition by its key.

curl --request GET \
     --url https://api.optimizely.com/flags/v1//projects/{project_id}/flags/{flag_key}/variable_definitions/{variable_definition_key} \
     --header 'accept: application/json'

var myHeaders = new Headers();
myHeaders.append("accept", "application/json");
myHeaders.append("content-type", "application/json");

var requestOptions = {
   method: 'GET',
   headers: myHeaders,
   redirect: 'follow'
};

fetch("https://api.optimizely.com/flags/v1//projects/{project_id}/flags/{flag_key}/variable_definitions/{variable_definition_key}", requestOptions)
   .then(response => response.text())
   .then(result => console.log(result))
   .catch(error => console.log('error', error));

require "uri"
require "json"
require "net/http"

url = URI("https://api.optimizely.com/flags/v1//projects/{project_id}/flags/{flag_key}/variable_definitions/{variable_definition_key}")

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

request = Net::HTTP::Get.new(url)
request["accept"] = "application/json"
request["content-type"] = "application/json"

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

import requests
import json

url = "https://api.optimizely.com/flags/v1//projects/{project_id}/flags/{flag_key}/variable_definitions/{variable_definition_key}"

payload = {}
headers = {
   'accept': 'application/json',
   'content-type': 'application/json'
}

response = requests.request("GET", url, headers=headers, data=payload)

print(response.text)

// Successful retrieval of a single of Variable Definition for a Flag, and Variable Definition Key.
{
  "default_value": "0.0",
  "description": "This variable is used to configure the amount used for computing the discount",
  "key": "amount",
  "revision": 0,
  "role": "admin",
  "type": "double"
}

// Malformed requests and invalid parameter names and types

// Invalid credentials

// Do not have permission to perform the operation