# Latest

**URL:** https://discourse.nodered.org/latest.md?page=1359

[Latest](https://discourse.nodered.org/latest.md) · [Categories](https://discourse.nodered.org/categories.md) · [Tags](https://discourse.nodered.org/tags.md)

**Page:** 1360

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## [Esri Map Services](https://discourse.nodered.org/t/esri-map-services/3604)

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**Author:** [@smulberry](https://discourse.nodered.org/u/smulberry)\
**Replies:** 5\
**Last updated:** [2 October 2018 13:47 UTC](https://discourse.nodered.org/t/esri-map-services/3604 "2018-10-02T13:47:01Z")

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New to Node-RED and am tooling around with the WorldMap Node. I'm interested to see if I can overlay this map service: https://nowcoast.noaa.gov/arcgis/rest/services/nowcoast/radar\_meteo\_imagery\_nexrad\_time/MapServer Th…

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## [SNMP-SET not showing during an SNMPWalk](https://discourse.nodered.org/t/snmp-set-not-showing-during-an-snmpwalk/1339)

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**Author:** [@desertadmin](https://discourse.nodered.org/u/desertadmin)\
**Replies:** 0\
**Last updated:** [4 July 2018 23:31 UTC](https://discourse.nodered.org/t/snmp-set-not-showing-during-an-snmpwalk/1339 "2018-07-04T23:31:02Z")

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So we are using the SNMP-SET but it does not appear to open the SNMP server service on our Raspberry Pi 3. So we started the local SNMP and that works when we do a SNMPWalk but… I am not sure how to see our OID or how t…

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## [Can I control the multiple gpio pins of range pi through the internet?](https://discourse.nodered.org/t/can-i-control-the-multiple-gpio-pins-of-range-pi-through-the-internet/3621)

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**Author:** [@vincitygialam](https://discourse.nodered.org/u/vincitygialam)\
**Replies:** 1\
**Last updated:** [2 October 2018 10:25 UTC](https://discourse.nodered.org/t/can-i-control-the-multiple-gpio-pins-of-range-pi-through-the-internet/3621 "2018-10-02T10:25:32Z")

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Can I control the multiple gpio pins of range pi through the internet?

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## [Stop actors at night](https://discourse.nodered.org/t/stop-actors-at-night/3616)

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**Author:** [@SirNoob](https://discourse.nodered.org/u/SirNoob)\
**Replies:** 4\
**Last updated:** [2 October 2018 10:06 UTC](https://discourse.nodered.org/t/stop-actors-at-night/3616 "2018-10-02T10:06:58Z")

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Hi, I want to make a flow which turns on the light when it gets too dark. But only at the day, in the night I want to make a node, which stops the light to turn on. But the sensor should still gather the lux data. So…

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## [Gridview with CRUD Options (MySQL)](https://discourse.nodered.org/t/gridview-with-crud-options-mysql/2244)

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**Author:** [@rishanaziz](https://discourse.nodered.org/u/rishanaziz)\
**Replies:** 28\
**Last updated:** [2 October 2018 09:43 UTC](https://discourse.nodered.org/t/gridview-with-crud-options-mysql/2244 "2018-10-02T09:43:50Z")

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Hi, I'm creating a grid view with CRUD options using MySQL. The following link consists of the example: https://flows.nodered.org/flow/e32f2b942bce77ef6079c0642b93c036 I had tried a part of it here and I'm unable to d…

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## [TCP In/TCP out and char "§"](https://discourse.nodered.org/t/tcp-in-tcp-out-and-char/3582)

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**Author:** [@node-guy](https://discourse.nodered.org/u/node-guy)\
**Replies:** 9\
**Last updated:** [2 October 2018 07:53 UTC](https://discourse.nodered.org/t/tcp-in-tcp-out-and-char/3582 "2018-10-02T07:53:12Z")

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Good morning together, I have a question about TCP IN/OUT node. As my Node-Red program receives the "§" character it's output as debug on console is a not printable character. I use the String.charCodeAt(...) function a…

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## [Problem after clean install nodered all modules erased](https://discourse.nodered.org/t/problem-after-clean-install-nodered-all-modules-erased/3600)

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**Author:** [@Giaitzoglou](https://discourse.nodered.org/u/Giaitzoglou)\
**Replies:** 2\
**Last updated:** [2 October 2018 07:51 UTC](https://discourse.nodered.org/t/problem-after-clean-install-nodered-all-modules-erased/3600 "2018-10-02T07:51:19Z")

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Hi so I have been using nodered with Jessie on my raspberry pi 3 for almost a year now no problem but I decided to make a new install using stretch so I did I firstly downloaded raspbian and after dietpi .At my first att…

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## [ThankYou ThankYou ThankYou for extra function](https://discourse.nodered.org/t/thankyou-thankyou-thankyou-for-extra-function/3602)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 0\
**Last updated:** [1 October 2018 23:49 UTC](https://discourse.nodered.org/t/thankyou-thankyou-thankyou-for-extra-function/3602 "2018-10-01T23:49:20Z")

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I know it has been out for a while and I maybe should have seen it sooner. But thanks very much for the extra "function" that when you are editing code in a node (say Function node) there is the little button to maximis…

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## [Function node: output labels](https://discourse.nodered.org/t/function-node-output-labels/3598)

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**Author:** [@Sineos](https://discourse.nodered.org/u/Sineos)\
**Replies:** 1\
**Last updated:** [1 October 2018 21:33 UTC](https://discourse.nodered.org/t/function-node-output-labels/3598 "2018-10-01T21:33:40Z")

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Is it possible to dynamically assign labels for (multiple) outputs in a functions node?

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## [Catch node not catching](https://discourse.nodered.org/t/catch-node-not-catching/3414)

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**Author:** [@wb666greene](https://discourse.nodered.org/u/wb666greene)\
**Replies:** 17\
**Last updated:** [1 October 2018 19:05 UTC](https://discourse.nodered.org/t/catch-node-not-catching/3414 "2018-10-01T19:05:04Z")

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This is still the ongoing issue I raised here: Memory leak, what am I doing wrong? Basically my node-red flow uses all the memory and my instance is terminated by the OOM killer. The "will" message to the MQTT server …

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## [Node-red-contrib-ttn wont install](https://discourse.nodered.org/t/node-red-contrib-ttn-wont-install/3588)

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**Author:** [@Gert-Jan](https://discourse.nodered.org/u/Gert-Jan)\
**Replies:** 1\
**Last updated:** [1 October 2018 18:38 UTC](https://discourse.nodered.org/t/node-red-contrib-ttn-wont-install/3588 "2018-10-01T18:38:00Z")

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When i whant to install the node-red-contrib-ttn library bye the pallet i get the an error. It seems there is now library at this path? npm ERR! Error while executing: npm ERR! undefined ls-remote -h -t https://github…

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## [Running on windows server 2012 r2](https://discourse.nodered.org/t/running-on-windows-server-2012-r2/3586)

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**Author:** [@Andres](https://discourse.nodered.org/u/Andres)\
**Replies:** 8\
**Last updated:** [1 October 2018 14:32 UTC](https://discourse.nodered.org/t/running-on-windows-server-2012-r2/3586 "2018-10-01T14:32:55Z")

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Hi everyone, so as the title suggest, i'm running node-red on windows server. The server reboots it self every night at some fixed time, and when it "comes back" does not start the session, but it starts all the services…

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## [Convert date time to readable date time](https://discourse.nodered.org/t/convert-date-time-to-readable-date-time/3573)

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**Author:** [@RogierQ](https://discourse.nodered.org/u/RogierQ)\
**Replies:** 3\
**Last updated:** [1 October 2018 13:21 UTC](https://discourse.nodered.org/t/convert-date-time-to-readable-date-time/3573 "2018-10-01T13:21:32Z")

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from my database i get to the date and time like this : 2018-09-30T20:36:41.000Z but i want to to it nice and sexy in a html email like 30 september 2018, 20.36 i tried the format node and some examples from google lik…

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## [Is Changing Node-RED starter app name not allowed on IBM Cloud?](https://discourse.nodered.org/t/is-changing-node-red-starter-app-name-not-allowed-on-ibm-cloud/3584)

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**Author:** [@kenta\_okumura](https://discourse.nodered.org/u/kenta_okumura)\
**Replies:** 8\
**Last updated:** [1 October 2018 10:48 UTC](https://discourse.nodered.org/t/is-changing-node-red-starter-app-name-not-allowed-on-ibm-cloud/3584 "2018-10-01T10:48:48Z")

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I created Node-RED starter app and created the flow by flow editor. I could access the flow editor and URL defined in the app correctly. But after I changed Node-RED starter app name on IBM Cloud and restarted, the ap…

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## [See HTTP request in browser inspector or other way of verbose debug](https://discourse.nodered.org/t/see-http-request-in-browser-inspector-or-other-way-of-verbose-debug/3535)

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**Author:** [@Marooned](https://discourse.nodered.org/u/Marooned)\
**Replies:** 3\
**Last updated:** [28 September 2018 16:23 UTC](https://discourse.nodered.org/t/see-http-request-in-browser-inspector-or-other-way-of-verbose-debug/3535 "2018-09-28T16:23:57Z")

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Hi there I'm trying to get some data from API endpoint that is not well documented but it has been reverse engineered. I can easily make proper call using any known tool as curl or browser inspector. However, when I'm …

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## [Node-Red Dashboard Graph](https://discourse.nodered.org/t/node-red-dashboard-graph/3553)

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**Author:** [@podi62](https://discourse.nodered.org/u/podi62)\
**Replies:** 15\
**Last updated:** [1 October 2018 02:48 UTC](https://discourse.nodered.org/t/node-red-dashboard-graph/3553 "2018-10-01T02:48:45Z")

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Hi there, I'm trying to send a payload that contains a number, a label and a timestamp to a graph object but nothing at all gets displayed. If I just send the number as payload the graph gets populated. I've read the do…

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## [Create flow on Win10, send to Raspberry Pi](https://discourse.nodered.org/t/create-flow-on-win10-send-to-raspberry-pi/3571)

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**Author:** [@EskiDad1](https://discourse.nodered.org/u/EskiDad1)\
**Replies:** 3\
**Last updated:** [30 September 2018 21:29 UTC](https://discourse.nodered.org/t/create-flow-on-win10-send-to-raspberry-pi/3571 "2018-09-30T21:29:11Z")

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Hi Everyone, I am just starting to learn Node Red. I would like to develop a flow on my Win10 PC and transfer the flow to a Raspberry Pi. Is that possible? If so, is there a good place to look up the procedure? Than…

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## [Function extract value help](https://discourse.nodered.org/t/function-extract-value-help/3563)

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**Author:** [@cismarine](https://discourse.nodered.org/u/cismarine)\
**Replies:** 13\
**Last updated:** [30 September 2018 17:26 UTC](https://discourse.nodered.org/t/function-extract-value-help/3563 "2018-09-30T17:26:39Z")

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hi guys, I have simple question. working on some rough data and want to extract just the value in function node: {"topic":"xiaomi/lounge/th","payload":{"cmd":"report","model":"weather.v1","sid":"158d000201b16a","short…

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## [Telegram bot to channel](https://discourse.nodered.org/t/telegram-bot-to-channel/3547)

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**Author:** [@mshaz](https://discourse.nodered.org/u/mshaz)\
**Replies:** 3\
**Last updated:** [30 September 2018 14:29 UTC](https://discourse.nodered.org/t/telegram-bot-to-channel/3547 "2018-09-30T14:29:04Z")

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Hi I managed to post to telegram using telegram node but how to post in channel or group? I tried adding bot to channel but nothing happens? Do i set to post to channel from nodered? Thank you.

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## [Rate Limit questions and Midi question](https://discourse.nodered.org/t/rate-limit-questions-and-midi-question/3557)

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**Author:** [@johncohn](https://discourse.nodered.org/u/johncohn)\
**Replies:** 8\
**Last updated:** [30 September 2018 09:08 UTC](https://discourse.nodered.org/t/rate-limit-questions-and-midi-question/3557 "2018-09-30T09:08:19Z")

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Hi friends.. I'm in need of a quick solution. I'm trying to change the tempo of MIDI music programmatically . The idea is to queue up all the midi notes from a fast playing input midi node and then rate limit them to sl…

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## [Advice needed on mysql / for loop](https://discourse.nodered.org/t/advice-needed-on-mysql-for-loop/3526)

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**Author:** [@RogierQ](https://discourse.nodered.org/u/RogierQ)\
**Replies:** 5\
**Last updated:** [29 September 2018 16:16 UTC](https://discourse.nodered.org/t/advice-needed-on-mysql-for-loop/3526 "2018-09-29T16:16:32Z")

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I need some advice how to handle the data in the best way i get reservations from a xml, then i loop trough it with a for loop. then on every step i use node.send to output the values. these values i want to check wit…

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## [Data from file to html chart](https://discourse.nodered.org/t/data-from-file-to-html-chart/3523)

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**Author:** [@S.rajab9797](https://discourse.nodered.org/u/S.rajab9797)\
**Replies:** 13\
**Last updated:** [29 September 2018 15:51 UTC](https://discourse.nodered.org/t/data-from-file-to-html-chart/3523 "2018-09-29T15:51:31Z")

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Hi everybody! frist sorry about english. im new in node red. i want to show data in html chart from file.(file = saved data from chart in dashboard).it is log of my device .i dont know what can i do.

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## [Can i run two instance of NR on the one machine?](https://discourse.nodered.org/t/can-i-run-two-instance-of-nr-on-the-one-machine/3500)

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**Author:** [@craigcurtin](https://discourse.nodered.org/u/craigcurtin)\
**Replies:** 12\
**Last updated:** [28 September 2018 16:01 UTC](https://discourse.nodered.org/t/can-i-run-two-instance-of-nr-on-the-one-machine/3500 "2018-09-28T16:01:30Z")

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Guys, Starting to get quite a lot of stuff on my dashboard now (not exacrtly asthetic yet !) but lets say i want to give access to only a certain portion of the dashboard to someone else (for instance the control of the…

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## [Delete is affecting the flow.variables](https://discourse.nodered.org/t/delete-is-affecting-the-flow-variables/3539)

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**Author:** [@JoseGodinho](https://discourse.nodered.org/u/JoseGodinho)\
**Replies:** 4\
**Last updated:** [28 September 2018 15:43 UTC](https://discourse.nodered.org/t/delete-is-affecting-the-flow-variables/3539 "2018-09-28T15:43:28Z")

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Hello All I have this following conundrum Consider that I have the following flow variable and the following function node Tudo =flow.get('firstFloorState'); delete Tudo\["temp.guest"\]; delete Tudo\["temp.girl"\]; …

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## [IoT Node-red AutoStart](https://discourse.nodered.org/t/iot-node-red-autostart/3527)

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**Author:** [@qwerty](https://discourse.nodered.org/u/qwerty)\
**Replies:** 1\
**Last updated:** [28 September 2018 14:53 UTC](https://discourse.nodered.org/t/iot-node-red-autostart/3527 "2018-09-28T14:53:52Z")

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have a Siemens IoT where I installed Node-RED. I'm following a project that is based on receiving data and save them in a db via Node-RED and must be active 24h every day. I wanted to know if there was an auto-run in ca…

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## [Export functionality clears node properties](https://discourse.nodered.org/t/export-functionality-clears-node-properties/3470)

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**Author:** [@jewendt](https://discourse.nodered.org/u/jewendt)\
**Replies:** 4\
**Last updated:** [28 September 2018 12:47 UTC](https://discourse.nodered.org/t/export-functionality-clears-node-properties/3470 "2018-09-28T12:47:33Z")

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When exporting certain nodes. For example Azure Documents, some of the key properties are not exported. I understand the security concerns about exporting keys and such but there should be an option to export everythin…

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## [Dashboard visitor counter](https://discourse.nodered.org/t/dashboard-visitor-counter/3463)

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**Author:** [@b35b5dad43ea282b65d0](https://discourse.nodered.org/u/b35b5dad43ea282b65d0)\
**Replies:** 13\
**Last updated:** [28 September 2018 08:59 UTC](https://discourse.nodered.org/t/dashboard-visitor-counter/3463 "2018-09-28T08:59:56Z")

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Hi, I want to ask if you know a way how to make a counter for the Dashboard. So every user who visits the dashboard counts up. Thanks

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## [How do you set a 'node' context variable?](https://discourse.nodered.org/t/how-do-you-set-a-node-context-variable/3519)

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**Author:** [@zenofmud](https://discourse.nodered.org/u/zenofmud)\
**Replies:** 4\
**Last updated:** [28 September 2018 06:17 UTC](https://discourse.nodered.org/t/how-do-you-set-a-node-context-variable/3519 "2018-09-28T06:17:47Z")

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In the documentation it talks about the 'scope' of a particular context. Global and flow I understand, but not node. To set a flow context variable you use something like flow.set("myData", msg.payload, "storeInFile"); …

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## [If a flow works in one case, it should work in the second case -shouldn't it?](https://discourse.nodered.org/t/if-a-flow-works-in-one-case-it-should-work-in-the-second-case-shouldnt-it/3293)

<div class="topic-metadata">

**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 10\
**Last updated:** [28 September 2018 05:06 UTC](https://discourse.nodered.org/t/if-a-flow-works-in-one-case-it-should-work-in-the-second-case-shouldnt-it/3293 "2018-09-28T05:06:53Z")

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As I have said before, I need to discuss the problem because until I do, I can't seem to move on. Be it the best, worst, or what ever: I have a few nodes in a flow which work and do what they should do. I have just go…

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## [Logout option when user is not authorized](https://discourse.nodered.org/t/logout-option-when-user-is-not-authorized/3494)

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**Author:** [@dheerajjoshim](https://discourse.nodered.org/u/dheerajjoshim)\
**Replies:** 0\
**Last updated:** [27 September 2018 13:22 UTC](https://discourse.nodered.org/t/logout-option-when-user-is-not-authorized/3494 "2018-09-27T13:22:28Z")

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I am integrating Node-RED with Keycloak WebSSO for authentication. I am able to get most of it to work apart from below problem When I try to login to Node-RED using a user who do not have any permission (Like flows.re…

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