Joining messages delivers different results

[bigmadgaga]

Hi,

i am confused. Here i present two flows. They look similar. The only difference is, how they are wired from the html request node to the change node. I changed the order of the wires.

In the first case i get the expected result.

[{"id":"3c1ba8de.b834c8","type":"inject","z":"66a867b9.5d77d8","name":"","props":[{"p":"payload"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"","payloadType":"date","x":100,"y":1360,"wires":[["4fad8f0c.d0f44"]]},{"id":"4fad8f0c.d0f44","type":"http request","z":"66a867b9.5d77d8","name":"","method":"GET","ret":"txt","paytoqs":"ignore","url":"https://synekt.de/karriere/aktuelle-projekte-projektangebote/","tls":"","persist":false,"proxy":"","authType":"","x":270,"y":1360,"wires":[["e1db8854.974808","c3531162.06cbe"]]},{"id":"c3531162.06cbe","type":"change","z":"66a867b9.5d77d8","name":"set topic","rules":[{"t":"set","p":"topic","pt":"msg","to":"title","tot":"str"}],"action":"","property":"","from":"","to":"","reg":false,"x":460,"y":1340,"wires":[["8b46d09.8cb5e3"]]},{"id":"8b46d09.8cb5e3","type":"html","z":"66a867b9.5d77d8","name":"get inner HTML","property":"payload","outproperty":"payload","tag":"tbody>tr>td:nth-child(2)","ret":"html","as":"multi","x":620,"y":1340,"wires":[["28cd10ac.d6604"]]},{"id":"e1db8854.974808","type":"change","z":"66a867b9.5d77d8","name":"set topic","rules":[{"t":"set","p":"topic","pt":"msg","to":"link","tot":"str"}],"action":"","property":"","from":"","to":"","reg":false,"x":460,"y":1380,"wires":[["9ce930eb.70594"]]},{"id":"9ce930eb.70594","type":"html","z":"66a867b9.5d77d8","name":"get inner HTML","property":"payload","outproperty":"payload","tag":"tbody>tr>td:nth-child(1)","ret":"html","as":"multi","x":620,"y":1380,"wires":[["28cd10ac.d6604"]]},{"id":"28cd10ac.d6604","type":"join","z":"66a867b9.5d77d8","name":"","mode":"custom","build":"object","property":"payload","propertyType":"msg","key":"topic","joiner":"\\n","joinerType":"str","accumulate":true,"timeout":"","count":"2","reduceRight":false,"reduceExp":"","reduceInit":"","reduceInitType":"","reduceFixup":"","x":810,"y":1360,"wires":[["4433f9e0.ead378"]]},{"id":"4433f9e0.ead378","type":"debug","z":"66a867b9.5d77d8","name":"right","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"payload","targetType":"msg","statusVal":"","statusType":"auto","x":950,"y":1360,"wires":[]}]

In the second case the result is unexpected.

[{"id":"bb13adf1.e7f2e","type":"inject","z":"66a867b9.5d77d8","name":"","props":[{"p":"payload"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"","payloadType":"date","x":100,"y":1540,"wires":[["8c241cc.45c43e"]]},{"id":"8c241cc.45c43e","type":"http request","z":"66a867b9.5d77d8","name":"","method":"GET","ret":"txt","paytoqs":"ignore","url":"https://synekt.de/karriere/aktuelle-projekte-projektangebote/","tls":"","persist":false,"proxy":"","authType":"","x":270,"y":1540,"wires":[["41a789e5.aad0d8","9d9ba2a6.34ff"]]},{"id":"41a789e5.aad0d8","type":"change","z":"66a867b9.5d77d8","name":"set topic","rules":[{"t":"set","p":"topic","pt":"msg","to":"title","tot":"str"}],"action":"","property":"","from":"","to":"","reg":false,"x":460,"y":1520,"wires":[["8ed5018f.d305"]]},{"id":"8ed5018f.d305","type":"html","z":"66a867b9.5d77d8","name":"get inner HTML","property":"payload","outproperty":"payload","tag":"tbody>tr>td:nth-child(2)","ret":"html","as":"multi","x":620,"y":1520,"wires":[["a060a656.0eca98"]]},{"id":"9d9ba2a6.34ff","type":"change","z":"66a867b9.5d77d8","name":"set topic","rules":[{"t":"set","p":"topic","pt":"msg","to":"link","tot":"str"}],"action":"","property":"","from":"","to":"","reg":false,"x":460,"y":1560,"wires":[["172cd409.add06c"]]},{"id":"172cd409.add06c","type":"html","z":"66a867b9.5d77d8","name":"get inner HTML","property":"payload","outproperty":"payload","tag":"tbody>tr>td:nth-child(1)","ret":"html","as":"multi","x":620,"y":1560,"wires":[["a060a656.0eca98"]]},{"id":"a060a656.0eca98","type":"join","z":"66a867b9.5d77d8","name":"","mode":"custom","build":"object","property":"payload","propertyType":"msg","key":"topic","joiner":"\\n","joinerType":"str","accumulate":true,"timeout":"","count":"2","reduceRight":false,"reduceExp":"","reduceInit":"","reduceInitType":"","reduceFixup":"","x":810,"y":1540,"wires":[["d51062c4.e385c"]]},{"id":"d51062c4.e385c","type":"debug","z":"66a867b9.5d77d8","name":"mistake","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"payload","targetType":"msg","statusVal":"","statusType":"auto","x":960,"y":1540,"wires":[]}]

Does anyone have an idea, why i get different results. Thanks in advance.

bigmadgaga

[UnborN]

I see no difference between the two flows you posted .. unless im missing something.

Why do you try to join ("After a message parts 2") after the HTML nodes .. since the html nodes produce more than 2 messages?

Why don't you just put the result of your HTML nodes in an array to have a clean result (in an array) so the join node can more easily do their job which is joining the Title arrays and the Link arrays results.

change HTML nodes to "as single message containing an array" :

[EDIT] and also uncheck from Join node "and every subsequent message"