Created
February 23, 2015 22:08
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TCP request example
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| [{"id":"718554ed.8e7aac","type":"inject","name":"","topic":"","payload":"hello","payloadType":"string","repeat":"","crontab":"","once":false,"x":151,"y":457,"z":"6b5c7d92.94a384","wires":[["31a4d6ce.ce5b2a"]]},{"id":"31a4d6ce.ce5b2a","type":"tcp request","server":"192.168.1.10","port":"55555","out":"time","splitc":"100","name":"","x":353,"y":507,"z":"6b5c7d92.94a384","wires":[["4e62b5b1.b19d4c"]]},{"id":"4e62b5b1.b19d4c","type":"function","name":"only pass changes","func":"\ncontext.old = context.old || \"\";\nmsg.payload = msg.payload.toString();\n\nif (msg.payload !== context.old) {\n context.old = msg.payload;\n return msg;\n}\nreturn null;","outputs":1,"valid":true,"x":551,"y":566,"z":"6b5c7d92.94a384","wires":[["f43c9e61.0bc36"]]},{"id":"253b6ef0.dac492","type":"inject","name":"","topic":"","payload":"goodbye","payloadType":"string","repeat":"","crontab":"","once":true,"x":151,"y":532,"z":"6b5c7d92.94a384","wires":[["31a4d6ce.ce5b2a"]]},{"id":"f43c9e61.0bc36","type":"debug","name":"","active":true,"console":"false","complete":"payload","x":705.5,"y":487,"z":"6b5c7d92.94a384","wires":[]}] |
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This was just hitting against a tcp echo server on another machine. the response (echo) is then checked in the function node to see if it was different than previous and if so passes the message on...