LRANGE command

[lliendo]

I'm trying to issue an LRANGE command (syntax is LRANGE "KEY" START STOP, where START and STOP are integer values).

These are the things that I have tried:

1 - Create the node. I set the "Topic/Key" input to the desired key (in this case "collectedImages"). Then I set the START and STOP arguments as: [0, 9] in the "Params" box. I get an error reporting: "ReplyError: ERR wrong number of arguments for 'lrange' command".

2 - Create the node. I set the "Topic/Key" input to the desired key (in this case "collectedImages"). Then I set the KEY, START and STOP arguments as: ["collectedImages", 0, 9] in the "Params" box. I get an error reporting: "ReplyError: ERR wrong number of arguments for 'lrange' command".

It is super confusing how to correctly pass arguments for each command. Wouldn't it be much better and easier to let the user to completely construct the command from a function or set a string with the full command to run?

Thanks for your help!

[innoagg]

What are you injecting into the redis cmd node? Check your payload.

[pauldeng]

I agree, it is confusing.

But there is workaround: do NOT use the Topic/Key and Params fields in the redis cmd node.

Try this, hope it will be helpful to you:

[{"id":"a920473f2fb295af","type":"redis-command","z":"2c71e369871e1bf1","server":"a0efbb89.5e42d8","command":"LRANGE","name":"","topic":"","params":"[]","paramsType":"json","payloadType":"json","block":false,"x":420,"y":1280,"wires":[["4c9bf2a5755c6dfe"]]},{"id":"57d9021027774fc6","type":"inject","z":"2c71e369871e1bf1","name":"","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"[\"lkey\",\"0\", \"9\"]","payloadType":"json","x":190,"y":1280,"wires":[["a920473f2fb295af"]]},{"id":"4c9bf2a5755c6dfe","type":"debug","z":"2c71e369871e1bf1","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"false","x":650,"y":1280,"wires":[]},{"id":"a0efbb89.5e42d8","type":"redis-config","name":"local","options":"{}","cluster":false,"optionsType":"json"}]

This is opensource software, you are welcome to fork to fix it and PR back.

Cheers mate.