53 lines
1.1 KiB
Lua
53 lines
1.1 KiB
Lua
package.path = package.path .. ';./controller-host/?/init.lua;./controller-host/?.lua'
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local mqtt = require("mqtt")
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local client
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function printTable(table, indentation)
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indentation = indentation or ""
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for name, value in pairs(table) do
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print(indentation .. tostring(name) .. ": " .. tostring(value))
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end
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end
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local count = 0
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local function onMessage(data)
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--print("Got payload on topic " .. data.topic)
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local fh = io.open("spider-image.bin", "wb")
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fh:write(data.payload)
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fh:close()
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count = count + 1
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print("Wrote image " .. count .. " of length " .. #data.payload)
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end
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local function onConnect(connack)
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print("Connected")
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if connack.rc ~= 0 then
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print("Connection to broker failed:", connack:reason_string())
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os.exit(1)
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end
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assert(client:subscribe{
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topic = "spider/telemetry/#"
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})
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print("Subscribed")
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end
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client = mqtt.client {
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uri = "mqtt.seeseepuff.be",
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username = "tool-get-image",
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id = true,
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reconnect = 5,
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version = mqtt.v311,
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}
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client:on {
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connect = onConnect,
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message = onMessage,
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error = function(err)
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print("MQTT client error:", err)
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end,
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}
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mqtt.run_ioloop(client)
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