Node Red client for Redis with pub/sub, list, lua scripting and other commands support.
npm install node-red-contrib-redisConnection Options parameter receives IORedis object or string (https://github.com/luin/ioredis#connect-to-redis).
Now uses same connection per config name and open new if you set block connection option.
Roadmap:
- (ok)Stream Support
- (ok)Flow or Global redis instance injection to use on function Node.
- (wip)Better Validations
- (ok)Custom Commands support(Modules), with instance or Cmd.
See the Sample flow before ask how this module works.
Please test and make feedback.
I need contributors...
Redis Commands:
Payload -> Redis
Redis Queue:
Sample flow:
``javascript`
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tostatus":false,"complete":"false","x":670,"y":660,"wires":[]},{"id":"e42d2b3b.6bb","type":"redis-command","z":"f80412b1.e2ee8","server":"a0efbb89.5e42d8","command":"sadd","name":"","topic":"mySet","params":"[\"memberA\",\"memberB\",\"memberC\"]","paramsType":"json","payloadType":"json","block":false,"x":410,"y":660,"wires":[["e23fbe8.d7505c"]]},{"id":"2163c482.b8a244","type":"redis-command","z":"f80412b1.e2ee8","server":"a0efbb89.5e42d8","command":"get","name":"","topic":"","params":"[]","paramsType":"json","payloadType":"json","block":false,"x":380,"y":480,"wires":[["d2ea99d4.a4c51"]]},{"id":"b5f040ea.800be8","type":"inject","z":"f80412b1.e2ee8","name":"","topic":"key","payload":"[]","payloadType":"json","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":150,"y":480,"wires":[["2163c482.b8a244"]]},{"id":"d2ea99d4.a4c51","type":"debug","z":"f80412b1.e2ee8","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"true","targetType":"full","x":690,"y":480,"wires":[]},{"id":"15f62858.26419","type":"redis-lua-script","z":"f80412b1.e2ee8","server":"a0efbb89.5e42d8","name":"test","keyval":0,"func":"local text = \"Hello World\"\nreturn text","stored":true,"block":false,"x":370,"y":780,"wires":[["4a40fc2d.b70e2c"]]},{"id":"4f1fc69d.539ee","type":"inject","z":"f80412b1.e2ee8","name":"","topic":"","payload":"","payloadType":"date","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":160,"y":780,"wires":[["15f62858.26419"]]},{"id":"4a40fc2d.b70e2c","type":"debug","z":"f80412b1.e2ee8","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"true","targetType":"full","x":690,"y":780,"wires":[]},{"id":"6ebb1fdf.2fce","type":"inject","z":"f80412b1.e2ee8","name":"","topic":"","payload":"false","payloadType":"bool","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":150,"y":720,"wires":[["5a3d77f4.920fd8"]]},{"id":"bac6944e.4e07","type":"debug","z":"f80412b1.e2ee8","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"false","x":670,"y":720,"wires":[]},{"id":"5a3d77f4.920fd8","type":"redis-command","z":"f80412b1.e2ee8","server":"a0efbb89.5e42d8","command":"sismember","name":"","topic":"mySet","params":"[\"memberA\"]","paramsType":"json","payloadType":"json","block":false,"x":430,"y":720,"wires":[["bac6944e.4e07"]]},{"id":"c1c3a5a6.c289f","type":"redis-lua-script","z":"f80412b1.e2ee8","server":"a0efbb89.5e42d8","name":"test2","keyval":0,"func":"local text = \"Hello2222 World2222\"\nreturn text","stored":false,"block":false,"x":370,"y":840,"wires":[["d8bd4107.683c08"]]},{"id":"9013d649.88c35","type":"inject","z":"f80412b1.e2ee8","name":"","topic":"","payload":"","payloadType":"date","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":160,"y":840,"wires":[["c1c3a5a6.c289f"]]},{"id":"d8bd4107.683c08","type":"debug","z":"f80412b1.e2ee8","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"true","targetType":"full","x":690,"y":840,"wires":[]},{"id":"cb44db96.c64bb8","type":"redis-in","z":"f80412b1.e2ee8","server":"a0efbb89.5e42d8","command":"psubscribe","name":"","topic":"TOPIC:","timeout":0,"x":460,"y":20,"wires":[["78033f6c.31797"]]},{"id":"78033f6c.31797","type":"debug","z":"f80412b1.e2ee8","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"true","targetType":"full","x":690,"y":20,"wires":[]},{"id":"dac5fcff.4c4cb","type":"redis-in","z":"f80412b1.e2ee8","server":"a0efbb89.5e42d8","command":"subscribe","name":"","topic":"TOPIC:OK","timeout":0,"x":460,"y":80,"wires":[["6f01eb54.501e7c"]]},{"id":"6f01eb54.501e7c","type":"debug","z":"f80412b1.e2ee8","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"true","targetType":"full","x":690,"y":80,"wires":[]},{"id":"e0d2924b.210708","type":"redis-out","z":"f80412b1.e2ee8","server":"a0efbb89.5e42d8","command":"publish","name":"","topic":"TOPIC:OK","x":190,"y":140,"wires":[]},{"id":"d1fc59dc.bd4958","type":"inject","z":"f80412b1.e2ee8","name":"","topic":"","payload":"{\"a\":1,\"b\":2}","payloadType":"json","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":170,"y":40,"wires":[["e0d2924b.210708"]]},{"id":"3e05b777.781bd8","type":"redis-command","z":"f80412b1.e2ee8","server":"a0efbb89.5e42d8","command":"del","name":"","topic":"","params":"[]","paramsType":"json","payloadType":"json","block":false,"x":380,"y":900,"wires":[["fd036d2b.dc6d38"]]},{"id":"6924006.91553","type":"inject","z":"f80412b1.e2ee8","name":"","topic":"key","payload":"[]","payloadType":"json","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":150,"y":900,"wires":[["3e05b777.781bd8"]]},{"id":"fd036d2b.dc6d38","type":"debug","z":"f80412b1.e2ee8","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"true","targetType":"full","x":690,"y":900,"wires":[]},{"id":"a13d2797.8a7ff","type":"redis-instance","z":"f80412b1.e2ee8","server":"a0efbb89.5e42d8","name":"","topic":"redis","location":"flow","block":false,"x":130,"y":960,"wires":[]},{"id":"2a93e7ce.341078","type":"inject","z":"f80412b1.e2ee8","name":"","topic":"","payload":"","payloadType":"date","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":140,"y":1000,"wires":[["d89709ef.fd9368"]]},{"id":"d89709ef.fd9368","type":"function","z":"f80412b1.e2ee8","name":"","func":"let redis = context.flow.get('redis');\n\nredis.info().then((data)=>{\n msg.payload = data\n node.send(msg);\n})\n\n/\nredis.call(\"anycmd\").then((data)=>{\n msg.payload = data\n node.send(msg);\n})*/","outputs":1,"noerr":0,"x":370,"y":1000,"wires":[["f2e9c3a0.8f181"]]},{"id":"f2e9c3a0.8f181","type":"debug","z":"f80412b1.e2ee8","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"true","targetType":"full","x":690,"y":1000,"wires":[]},{"id":"a0efbb89.5e42d8","type":"redis-config","z":"","name":"local","options":"{}","cluster":false,"optionsType":"json"}]
Interact with Redis Lua script sample flow:
`javascript``
[{"id":"db136c5d713d3cd0","type":"inject","z":"1a15e2364209aeb3","name":"","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"","payloadType":"date","x":220,"y":200,"wires":[["5f41ce33e1d008a9"]]},{"id":"4948edd4b85e148f","type":"inject","z":"1a15e2364209aeb3","name":"zadd 1","props":[{"p":"payload"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"[\"device:96a4:1a87:04\", 1, \"{\\\"test\\\":1,\\\"hello\\\":\\\"world1\\\", \\\"hexstr\\\": \\\"000102\\\"}\"]","payloadType":"json","x":210,"y":380,"wires":[["f9ccc3e1983f8ec7"]]},{"id":"89734db2e2b504d9","type":"inject","z":"1a15e2364209aeb3","name":"","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"","payloadType":"date","x":220,"y":580,"wires":[["ad21bea98339b79e"]]},{"id":"5f41ce33e1d008a9","type":"redis-lua-script","z":"1a15e2364209aeb3","server":"08ae710220cd5170","name":"redis lua: hello world","keyval":0,"func":"\nreturn \"hello world\"","stored":false,"block":false,"x":600,"y":200,"wires":[["44f2c4e99a1e521d"]]},{"id":"44f2c4e99a1e521d","type":"debug","z":"1a15e2364209aeb3","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"true","targetType":"full","statusVal":"","statusType":"auto","x":870,"y":520,"wires":[]},{"id":"29035e2612073aa9","type":"redis-lua-script","z":"1a15e2364209aeb3","server":"08ae710220cd5170","name":"redis lua: ping pong","keyval":0,"func":"local foo = redis.call('ping')\nreturn foo","stored":false,"block":false,"x":590,"y":260,"wires":[["44f2c4e99a1e521d"]]},{"id":"b9f91d2f3fceb024","type":"redis-lua-script","z":"1a15e2364209aeb3","server":"08ae710220cd5170","name":"redis lua: set","keyval":"1","func":"local foo = redis.call('SET', KEYS[1], ARGV[1])\nreturn foo","stored":false,"block":false,"x":570,"y":320,"wires":[["44f2c4e99a1e521d"]]},{"id":"cfb9a1d9d6235c96","type":"inject","z":"1a15e2364209aeb3","name":"set key value","props":[{"p":"payload"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"[\"key\", \"value\"]","payloadType":"json","x":230,"y":320,"wires":[["b9f91d2f3fceb024"]]},{"id":"f9ccc3e1983f8ec7","type":"redis-lua-script","z":"1a15e2364209aeb3","server":"08ae710220cd5170","name":"redis lua: zadd","keyval":"1","func":"local foo = redis.call('ZADD', KEYS[1], ARGV[1], ARGV[2])\nreturn foo","stored":false,"block":false,"x":580,"y":380,"wires":[["44f2c4e99a1e521d"]]},{"id":"75a5d81a80da3959","type":"inject","z":"1a15e2364209aeb3","name":"zadd 2","props":[{"p":"payload"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"[\"device:96a4:1a87:04\", 2, \"{\\\"test\\\":2,\\\"hello\\\":\\\"world2\\\", \\\"hexstr\\\": \\\"030405\\\"}\"]","payloadType":"json","x":210,"y":420,"wires":[["f9ccc3e1983f8ec7"]]},{"id":"c32955b956a9c79a","type":"redis-lua-script","z":"1a15e2364209aeb3","server":"08ae710220cd5170","name":"redis lua: cjson decode","keyval":"1","func":"local foo = cjson.decode(ARGV[2])\n\nreturn foo.test","stored":false,"block":false,"x":600,"y":520,"wires":[["44f2c4e99a1e521d"]]},{"id":"84bd8bb2222e0517","type":"inject","z":"1a15e2364209aeb3","name":"cjson","props":[{"p":"payload"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"[\"device:96a4:1a87:04\", 3, \"{\\\"test\\\":3,\\\"hello\\\":\\\"world3\\\", \\\"hexstr\\\": \\\"060708\\\"}\"]","payloadType":"json","x":210,"y":520,"wires":[["c32955b956a9c79a"]]},{"id":"8d8b9d844348773c","type":"inject","z":"1a15e2364209aeb3","name":"","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"","payloadType":"date","x":220,"y":260,"wires":[["29035e2612073aa9"]]},{"id":"15959eedb0e32c26","type":"redis-lua-script","z":"1a15e2364209aeb3","server":"08ae710220cd5170","name":"redis lua: substring","keyval":"1","func":"local foo = tonumber(string.sub(KEYS[1], -2, -1))\n\nreturn foo","stored":false,"block":false,"x":590,"y":640,"wires":[["44f2c4e99a1e521d"]]},{"id":"b66f5d8e92e9fbbf","type":"inject","z":"1a15e2364209aeb3","name":"substring","props":[{"p":"payload"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"[\"device:96a4:1a87:04\", 3, \"{\\\"test\\\":3,\\\"hello\\\":\\\"world3\\\", \\\"hexstr\\\": \\\"060708\\\"}\"]","payloadType":"json","x":220,"y":640,"wires":[["15959eedb0e32c26"]]},{"id":"2a7fac1573b38b98","type":"inject","z":"1a15e2364209aeb3","name":"zadd 3","props":[{"p":"payload"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"[\"device:96a4:1a87:04\", 3, \"{\\\"test\\\":3,\\\"hello\\\":\\\"world3\\\", \\\"hexstr\\\": \\\"060708\\\"}\"]","payloadType":"json","x":210,"y":460,"wires":[["f9ccc3e1983f8ec7"]]},{"id":"ad21bea98339b79e","type":"redis-lua-script","z":"1a15e2364209aeb3","server":"08ae710220cd5170","name":"redis lua: cjson encode","keyval":"0","func":"local foo = {}\n\nfoo.field1 = 1\nfoo.field2 = \"hello world\"\nfoo.field3 = {}\nfoo.field3.name = \"paul\"\n\nreturn cjson.encode(foo)","stored":false,"block":false,"x":600,"y":580,"wires":[["41d9477be860b123"]]},{"id":"41d9477be860b123","type":"json","z":"1a15e2364209aeb3","name":"","property":"payload","action":"","pretty":false,"x":790,"y":580,"wires":[["44f2c4e99a1e521d"]]},{"id":"b6378268209d3f41","type":"redis-lua-script","z":"1a15e2364209aeb3","server":"08ae710220cd5170","name":"redis lua: zcount","keyval":"1","func":"local elementCount = redis.call('ZCOUNT', KEYS[1], \"-inf\", \"+inf\")\n\nreturn elementCount","stored":false,"block":false,"x":580,"y":700,"wires":[["44f2c4e99a1e521d"]]},{"id":"1efddadd63d15077","type":"inject","z":"1a15e2364209aeb3","name":"zcount","props":[{"p":"payload"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"[\"device:96a4:1a87:04\", 4, \"{\\\"test\\\":4,\\\"hello\\\":\\\"world4\\\", \\\"hexstr\\\": \\\"090a0b\\\"}\"]","payloadType":"json","x":210,"y":700,"wires":[["b6378268209d3f41"]]},{"id":"e49699a6dde3b6de","type":"redis-lua-script","z":"1a15e2364209aeb3","server":"08ae710220cd5170","name":"redis lua: zrange","keyval":"1","func":"local elementCount = redis.call('ZRANGE', KEYS[1], 0, 3)\n\nreturn elementCount","stored":false,"block":false,"x":580,"y":760,"wires":[["44f2c4e99a1e521d"]]},{"id":"5da7c2d8aea3b596","type":"inject","z":"1a15e2364209aeb3","name":"zrange","props":[{"p":"payload"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"[\"device:96a4:1a87:04\", 4, \"{\\\"test\\\":4,\\\"hello\\\":\\\"world4\\\", \\\"hexstr\\\": \\\"090a0b\\\"}\"]","payloadType":"json","x":210,"y":760,"wires":[["e49699a6dde3b6de"]]},{"id":"e9aa29233106c2c8","type":"inject","z":"1a15e2364209aeb3","name":"concat","props":[{"p":"payload"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"[\"device:96a4:1a87:04\", 4, \"{\\\"test\\\":4,\\\"hello\\\":\\\"world4\\\", \\\"hexstr\\\": \\\"090a0b\\\"}\"]","payloadType":"json","x":210,"y":820,"wires":[["f513666fe9a2c2ca"]]},{"id":"f513666fe9a2c2ca","type":"redis-lua-script","z":"1a15e2364209aeb3","server":"08ae710220cd5170","name":"redis lua: complex","keyval":"1","func":"local response = \"\"\nlocal elementCount = redis.call('ZRANGE', KEYS[1], 0, 3)\n\nfor i=1,3,1\ndo\n response = response .. cjson.decode(elementCount[i]).hexstr\nend\n\nreturn response","stored":false,"block":false,"x":590,"y":820,"wires":[["44f2c4e99a1e521d"]]},{"id":"08ae710220cd5170","type":"redis-config","name":"Local","options":"{}","cluster":false,"optionsType":"json"}]
