Like the image shows. I want to chain the msgs that are being sent with a small delay in between them. Currently function just spits out the array with the list and everything gets triggered all at once because of that.
NodeRed Version v1.0.3
Hello @shivam422, welcome to the forum 
It is possible to use a Delay node in Rate Limit mode to send one message every 3 seconds
We have a picture of your flow but not the code, so I don't know why your function node sends 8 messages in parallel rather than just one. What does the function do? There may be a better way to structure it.
I see that you have a trigger node "resend every 3s". Each message produces 8 more, you want each of those at 3 second intervals so it takes 24s to completely process each input message. Whatever queue mechanism you use will eventually be overwhelmed.
Here is a complete look at the process that I am trying to accomplish. And I do think its being overwhelmed because the process is very slow to get data.
So essentially the function node just pushed 8 IPs out at the same time and the flow below will essentially make HTTP request to get the data using those 8 IPs. But all of this is being done in parallel and is very slow. There may be a better way of doing this flow and I will post the code also.
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out","z":"ac84fbfe.787f58","name":"ESS0_IP","links":["bdc4b31b.75d23","4446e954.18dbe8","8e696203.2a38a","8094f947.0920d","b25ad35a.33db8","a3423268.1bfd1","f48916a3.78bc68","b83e5150.d171f"],"x":875,"y":260,"wires":[]},{"id":"62d2e6c4.80b5c8","type":"link out","z":"ac84fbfe.787f58","name":"ESS1_IP","links":["4020a322.82541c","5f705eb.2e2cba","cc5e743f.23a818","7032a317.252134","a5aeedfb.6b6438","f48916a3.78bc68","910b5a46.5b4038"],"x":875,"y":300,"wires":[]},{"id":"c13d462e.870c68","type":"link out","z":"ac84fbfe.787f58","name":"ESS2_IP","links":["2007da4a.1968d6","9ca6f5fb.206cd8","34792eed.67bac2","f2617efa.f1fc1","330d2097.f2de","f48916a3.78bc68","5e19496b.1c09b8"],"x":875,"y":340,"wires":[]},{"id":"575f33ea.0a264c","type":"link out","z":"ac84fbfe.787f58","name":"ESS3_IP","links":["ab9ecd6.329153","fb7b0797.f789f8","b5032a9a.931578","bf2bf7d6.e5f76","9046de32.655d88","f48916a3.78bc68","edbe7355.b3df4"],"x":875,"y":380,"wires":[]},{"id":"a90bc67f.2ae568","type":"trigger","z":"ac84fbfe.787f58","op1":"","op2":"0","op1type":"pay","op2type":"str","duration":"-3","extend":false,"units":"s","reset":"","bytopic":"all","name":"","x":480,"y":400,"wires":[["bfd2dec.4751c2"]]},{"id":"bfd2dec.4751c2","type":"function","z":"ac84fbfe.787f58","name":"Make Array List","func":"var IP_list = [];\nvar numOfESS = global.get(\"NumberofESS\");\n\nIP_list.push(global.get(\"ESS0_IP\"));\nIP_list.push(global.get(\"ESS1_IP\"));\nIP_list.push(global.get(\"ESS2_IP\"));\nIP_list.push(global.get(\"ESS3_IP\"));\nIP_list.push(global.get(\"ESS4_IP\"));\nIP_list.push(global.get(\"ESS5_IP\"));\nIP_list.push(global.get(\"ESS6_IP\"));\nIP_list.push(global.get(\"ESS7_IP\"));\n\n\nvar msgArray = [];\n\nfor(var i = 0; i < numOfESS+1; i++)\n{\n var myvalue = IP_list[i];\n var ESSIP = {\n \"topic\": \"manualConfig\",\n \"payload\": myvalue\n };\n msgArray.push(ESSIP);\n}\nreturn msgArray;","outputs":"8","noerr":0,"x":680,"y":400,"wires":[["b4cbef22.dc361","dd0bebb4.f47388"],["62d2e6c4.80b5c8"],["c13d462e.870c68"],["575f33ea.0a264c"],["d28b3d7c.798e7"],["262ef82d.2f0e98"],["926bb0ce.09b3d"],["b7e8cc07.a3d4f"]]},{"id":"7ee8bbb8.bd19e4","type":"hmi-tag 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success?","property":"statusCode","propertyType":"msg","rules":[{"t":"eq","v":"200","vt":"num"},{"t":"else"}],"checkall":"true","outputs":2,"x":660,"y":680,"wires":[["afa587f8.0cb5e8"],[]]},{"id":"e915a370.1241a","type":"switch","z":"ac84fbfe.787f58","name":"200 success?","property":"statusCode","propertyType":"msg","rules":[{"t":"eq","v":"200","vt":"num"},{"t":"else"}],"checkall":"true","outputs":2,"x":660,"y":720,"wires":[["950a02.3367a6"],[]]},{"id":"42c0785f.5990d8","type":"switch","z":"ac84fbfe.787f58","name":"200 success?","property":"statusCode","propertyType":"msg","rules":[{"t":"eq","v":"200","vt":"num"},{"t":"else"}],"checkall":"true","outputs":2,"x":660,"y":760,"wires":[["80104bec.ad1838"],[]]},{"id":"ad20300e.3e5d5","type":"switch","z":"ac84fbfe.787f58","name":"200 success?","property":"statusCode","propertyType":"msg","rules":[{"t":"eq","v":"200","vt":"num"},{"t":"else"}],"checkall":"true","outputs":2,"x":660,"y":800,"wires":[["f6ebfca7.db298"],[]]},{"id":"19a48ded.6fc032","type":"switch","z":"ac84fbfe.787f58","name":"200 success?","property":"statusCode","propertyType":"msg","rules":[{"t":"eq","v":"200","vt":"num"},{"t":"else"}],"checkall":"true","outputs":2,"x":660,"y":840,"wires":[["a4f05c16.bebfb"],[]]},{"id":"46c453e5.3aa42c","type":"switch","z":"ac84fbfe.787f58","name":"200 success?","property":"statusCode","propertyType":"msg","rules":[{"t":"eq","v":"200","vt":"num"},{"t":"else"}],"checkall":"true","outputs":2,"x":660,"y":880,"wires":[["34e3ee87.3691b2"],[]]},{"id":"9f599780.d372b8","type":"switch","z":"ac84fbfe.787f58","name":"200 success?","property":"statusCode","propertyType":"msg","rules":[{"t":"eq","v":"200","vt":"num"},{"t":"else"}],"checkall":"true","outputs":2,"x":660,"y":920,"wires":[["c44a5354.f4a4d"],[]]},{"id":"6d77eb6a.670fd4","type":"switch","z":"ac84fbfe.787f58","name":"200 success?","property":"statusCode","propertyType":"msg","rules":[{"t":"eq","v":"200","vt":"num"},{"t":"else"}],"checkall":"true","outputs":2,"x":660,"y":960,"wires":[["cbdf4f3c.8e62f"],[]]},{"id":"cc6ec10f.48f47","type":"comment","z":"ac84fbfe.787f58","name":"All 8 IPs send HTTP request","info":"","x":240,"y":640,"wires":[]},{"id":"24756f76.fd7be","type":"comment","z":"ac84fbfe.787f58","name":"Parse out and Send it to other flows","info":"","x":900,"y":640,"wires":[]},{"id":"4ed039a6.814638","type":"hmi-sse","z":"","name":"JMobile","host":"127.0.0.1","port":"80","period":"100"}]
Seems to be a lot of duplication
I would create the array of ip's, then split them into separte messages. Then rate limit msg's, run each http request. Once request responds flush next msg from rate limit, then rejoin the array splits. Once all split msg's have rejoined delay a few seconds and repeat. You can break the loop with simple gate or something similar. I have added an inject you can break the loop by injecting when 5 second delay is running.
e.g.
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Untested as do not have your devices to test.
1 Like
Thank you! I was able to implement this
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