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#!/usr/bin/env lua
--[[
Example of websocket client usage
- Connects to the gdax market data feed.
Documentation of feed: https://docs.gdax.com/#websocket-feed
- Sends a subscribe message
- Prints off 5 messages
- Close the socket and clean up.
]]
local websocket = require "http.websocket"
local ws = websocket.new_from_uri("wss://ws-feed.gdax.com")
assert(ws:connect())
assert(ws:send([[{"type": "subscribe", "product_id": "BTC-USD"}]]))
for _=1, 5 do
local data = assert(ws:receive())
print(data)
end
assert(ws:close())
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