I did a bit of digging and it paid off.
(extract from code used:)
if (typeof msg.delay === "undefined")
{
const id = env.get("NR_NODE_PATH");
const ids = id.split("/");
const errr = `msg.delay not set in message going into ${ids[1]}`;
node.error(errr, msg);
msg.source = ids[1];
return;
}
Which is all well and good for THAT instance and THAT error.
So it now begs the question to me:
How do I catch errors in a subflow and pass on the error to the parent flow so the *parent flow's error message points to the subflow node.
I'm not sure how it will work with this node already managing it's own errors.
Could I just negate this part and handle all errors with the catch node in the subflow?
Would make it easier.
I've kinda done it, but the formatting is not the best and I just get a message with the dummy error message and the node's number all in one line.
How would I format it so the node number is per real error messages?
And maybe pass on the whole error message too?
(Trying ITMT)
Update:
This is a test flow I made to check.
Thoughts?
[{"id":"089874d72f82b238","type":"subflow","name":"Error handler for subflows","info":"2024 06 17\n==========\n\nBasic overview.\n`TEST node` causes an error.\n(any input)\n\n`Upsend error message` relays the\nerror message to the parent flow.\n`error.source` -> subflow with error\n`_error.source.name` -> name of node that\ncaused the error.\n`_error.message` -> the error message\n\nSuggestion:\n-----------\nThe `catch` node should only catch\nerrors from `function` nodes.\n","category":"","in":[{"x":230,"y":70,"wires":[{"id":"18bb902b0b89f912"}]}],"out":[{"x":360,"y":190,"wires":[{"id":"830e5e8780badf3b","port":0}]}],"env":[],"meta":{},"color":"#DDAA99"},{"id":"18bb902b0b89f912","type":"function","z":"089874d72f82b238","name":"TEST node","func":"node.error(\"Error\",msg)","outputs":1,"timeout":0,"noerr":0,"initialize":"","finalize":"","libs":[],"x":410,"y":70,"wires":[[]]},{"id":"830e5e8780badf3b","type":"catch","z":"089874d72f82b238","name":"","scope":["18bb902b0b89f912"],"uncaught":false,"x":200,"y":190,"wires":[["06b515199b7eb047"]]},{"id":"06b515199b7eb047","type":"function","z":"089874d72f82b238","name":"Upsend error message","func":"const id = env.get(\"NR_NODE_PATH\");\nconst ids = id.split(\"/\");\nconst errr = `Something went wrong in subflow (See source number below).\\nopen the _error.source object (below) to get more details`;\nmsg.source = ids[1];\nnode.error(errr, msg);\n \n","outputs":1,"timeout":0,"noerr":0,"initialize":"","finalize":"","libs":[],"x":440,"y":240,"wires":[[]]},{"id":"52cc9476d774b429","type":"subflow:089874d72f82b238","z":"7e987ddf260bdf0d","name":"","x":420,"y":3410,"wires":[["58bd64507cef17b7"]]},{"id":"897d573b21452c75","type":"inject","z":"7e987ddf260bdf0d","name":"","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"","payloadType":"date","x":170,"y":3410,"wires":[["52cc9476d774b429"]]},{"id":"58bd64507cef17b7","type":"debug","z":"7e987ddf260bdf0d","name":"Used for testing.","active":false,"tosidebar":true,"console":false,"tostatus":false,"complete":"true","targetType":"full","statusVal":"","statusType":"auto","x":860,"y":3410,"wires":[]},{"id":"a28a91a006a4fee5","type":"catch","z":"7e987ddf260bdf0d","name":"","scope":["52cc9476d774b429"],"uncaught":false,"x":360,"y":3510,"wires":[["2257c395145111bb","ffcfe59eeec7ec81"]]},{"id":"2257c395145111bb","type":"debug","z":"7e987ddf260bdf0d","name":"Ok error message","active":false,"tosidebar":true,"console":false,"tostatus":false,"complete":"true","targetType":"full","statusVal":"","statusType":"auto","x":870,"y":3450,"wires":[]},{"id":"ffcfe59eeec7ec81","type":"change","z":"7e987ddf260bdf0d","name":"","rules":[{"t":"move","p":"_error.source","pt":"msg","to":"error.source","tot":"msg"}],"action":"","property":"","from":"","to":"","reg":false,"x":600,"y":3510,"wires":[["2acd17e7327bb6bc"]]},{"id":"2acd17e7327bb6bc","type":"debug","z":"7e987ddf260bdf0d","name":"Better error message","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"true","targetType":"full","statusVal":"","statusType":"auto","x":880,"y":3510,"wires":[]}]
