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Astronauts in Space

Astronauts in Space

Sep 27 2018, 2:05 AM PST

This code sample uses HttpService’s GetAsync to make a request to Open Notify, a web service that provides data from NASA. The request is made to an endpoint that provides information on how many astronauts are currently in space. The response is provided in JSON format, so it is parsed using JSONDecode. Finally, the response data is then processed and printed to the Output.

Test this script by pasting the source code into a Script (HttpService cannot be used by LocalScripts). Also, be sure to enable HTTP Requests in your Game Settings (Home > Game Settings).

local HttpService = game:GetService("HttpService")

local URL_ASTROS = "http://api.open-notify.org/astros.json"

-- Make the request to our endpoint URL
local response = HttpService:GetAsync(URL_ASTROS)

-- Parse the JSON response
local data = HttpService:JSONDecode(response)

-- Information in the data table is dependent on the response JSON
if data.message == "success" then
	print("There are currently " .. data.number .. " astronauts in space:")
	for i, person in pairs(data.people) do
		print(i .. ": " .. person.name .. " is on " .. person.craft)
	end
end