Hi I just start with node red. What I want is basically to combie the result of two flows in one string.
My Flow is here. Joined val does not output anything
[{"id":"6642db4d.a294f4","type":"tab","label":"Flow 2","disabled":false,"info":""},{"id":"58c50cd5.3a2584","type":"html","z":"6642db4d.a294f4","name":"Lra ffb covid zahlen","property":"payload","outproperty":"payload","tag":".contenttable li","ret":"text","as":"multi","x":190,"y":320,"wires":[["38468fac.0db4e","2f30e56e.1c5c2a"]]},{"id":"5b418e99.f9c01","type":"http request","z":"6642db4d.a294f4","name":"","method":"GET","ret":"txt","paytoqs":"ignore","url":"https://www.lra-ffb.de/aktuelles/corona-informationen/corona-statistik-infizierte-genesene-verstorbene-und-geimpfte-im-landkreis","tls":"","persist":false,"proxy":"","authType":"","x":150,"y":240,"wires":[["58c50cd5.3a2584"]]},{"id":"c2d4e182.ddef5","type":"inject","z":"6642db4d.a294f4","name":"","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"","payloadType":"date","x":100,"y":160,"wires":[["5b418e99.f9c01"]]},{"id":"2f30e56e.1c5c2a","type":"change","z":"6642db4d.a294f4","name":"cov val","rules":[{"t":"set","p":"cov_val","pt":"msg","to":"$split(payload,\": \")[1]","tot":"jsonata"}],"action":"","property":"","from":"","to":"","reg":false,"x":420,"y":380,"wires":[["a12ef084.f558e"]]},{"id":"38468fac.0db4e","type":"change","z":"6642db4d.a294f4","name":"cov date","rules":[{"t":"set","p":"topic","pt":"msg","to":"$split(payload,\": \")[0]","tot":"jsonata"}],"action":"","property":"","from":"","to":"","reg":false,"x":420,"y":300,"wires":[["4a3d55b6.fbce2c"]]},{"id":"a958977c.b49378","type":"join","z":"6642db4d.a294f4","name":"joined date","mode":"custom","build":"string","property":"cov_date","propertyType":"msg","key":"topic","joiner":",","joinerType":"str","accumulate":false,"timeout":"","count":"","reduceRight":false,"reduceExp":"","reduceInit":"","reduceInitType":"","reduceFixup":"","x":830,"y":300,"wires":[["d1f1ec75.f287d"]]},{"id":"4a3d55b6.fbce2c","type":"change","z":"6642db4d.a294f4","name":"","rules":[{"t":"set","p":"cov_date","pt":"msg","to":"\"'\"&topic&\"'\"","tot":"jsonata"}],"action":"","property":"","from":"","to":"","reg":false,"x":620,"y":300,"wires":[["a958977c.b49378"]]},{"id":"a12ef084.f558e","type":"change","z":"6642db4d.a294f4","name":"","rules":[{"t":"change","p":"cov_val","pt":"msg","from":",","fromt":"str","to":".","tot":"str"}],"action":"","property":"","from":"","to":"","reg":false,"x":620,"y":380,"wires":[["31714c84.2b5f04"]]},{"id":"d1f1ec75.f287d","type":"change","z":"6642db4d.a294f4","name":"","rules":[{"t":"set","p":"payload","pt":"msg","to":"\"https://quickchart.io/chart?c={type:'bar',data:{labels:[\"&cov_date&\"}}}], datasets:[{label:'Covid',data:[\"&cov_val&\"]}]}}\"","tot":"jsonata"}],"action":"","property":"","from":"","to":"","reg":false,"x":1030,"y":300,"wires":[["bcee2d94.c9c4"]]},{"id":"31714c84.2b5f04","type":"join","z":"6642db4d.a294f4","name":"joined val","mode":"custom","build":"string","property":"cov_val","propertyType":"msg","key":"topic","joiner":",","joinerType":"str","accumulate":false,"timeout":"","count":"","reduceRight":false,"reduceExp":"","reduceInit":"","reduceInitType":"","reduceFixup":"","x":820,"y":380,"wires":[["bcee2d94.c9c4","47dc034f.71cbdc"]]},{"id":"47dc034f.71cbdc","type":"debug","z":"6642db4d.a294f4","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"cov_val","targetType":"msg","statusVal":"","statusType":"auto","x":1260,"y":440,"wires":[]},{"id":"bcee2d94.c9c4","type":"change","z":"6642db4d.a294f4","name":"","rules":[{"t":"set","p":"payload","pt":"msg","to":"\"blabla?c={type:'bar',data:{labels:[\"&cov_date&\"}}}], datasets:[{label:'Covid',data:[\"&cov_val&\"]}]}}\"","tot":"jsonata"}],"action":"","property":"","from":"","to":"","reg":false,"x":1250,"y":360,"wires":[[]]}]