# Core Development **URL:** https://discourse.nodered.org/c/development/8.md?page=44 [Latest](https://discourse.nodered.org/latest.md) · [Categories](https://discourse.nodered.org/categories.md) · [Tags](https://discourse.nodered.org/tags.md) **Page:** 45 --- ## [Allow user-defined node properties on subflows?](https://discourse.nodered.org/t/allow-user-defined-node-properties-on-subflows/2705)
**Author:** [@FezVrasta](https://discourse.nodered.org/u/FezVrasta)\ **Replies:** 4\ **Last updated:** [30 August 2018 15:48 UTC](https://discourse.nodered.org/t/allow-user-defined-node-properties-on-subflows/2705 "2018-08-30T15:48:50Z")
I was wondering if it's on the roadmap the ability to define custom node properties on subflows? Ideally I'd like to be able to add a configuration to my subflows so that they behave like the custom nodes. For instance… --- ## [Inspecting/Capping (per-Node?) memory usage](https://discourse.nodered.org/t/inspecting-capping-per-node-memory-usage/2675)
**Author:** [@iurly](https://discourse.nodered.org/u/iurly)\ **Replies:** 0\ **Last updated:** [29 August 2018 19:21 UTC](https://discourse.nodered.org/t/inspecting-capping-per-node-memory-usage/2675 "2018-08-29T19:21:36Z")
It has happened to me in the past that Node-RED just keeps allocating memory up to the point where the system can longer handle it. I'm talking about a memory-constrained system i.e. the Raspberry Pi. I haven't been abl… --- ## [SQLite - Add (function) editor to node](https://discourse.nodered.org/t/sqlite-add-function-editor-to-node/2576)
**Author:** [@tmdoit](https://discourse.nodered.org/u/tmdoit)\ **Replies:** 20\ **Last updated:** [29 August 2018 08:21 UTC](https://discourse.nodered.org/t/sqlite-add-function-editor-to-node/2576 "2018-08-29T08:21:02Z")
Using database nodes in most cases is related with two additional function nodes, one with SQL query input and second for parsing and routing result msg to different outputs. So for four operations on database you need … --- ## [\[Enhancement\] JSON Node - Add JSON Editor to node](https://discourse.nodered.org/t/enhancement-json-node-add-json-editor-to-node/2575)
**Author:** [@tmdoit](https://discourse.nodered.org/u/tmdoit)\ **Replies:** 6\ **Last updated:** [29 August 2018 03:38 UTC](https://discourse.nodered.org/t/enhancement-json-node-add-json-editor-to-node/2575 "2018-08-29T03:38:26Z")
I propose change to JSON Node, to improve UX: Add checkbox "JSON Validation Schema" - when clicked displays JSON Editor Benefits: Schema validation support is visible from Node Using only one node instead of two… --- ## [SQLite - Add support for mustache in fixed statement](https://discourse.nodered.org/t/sqlite-add-support-for-mustache-in-fixed-statement/2572)
**Author:** [@tmdoit](https://discourse.nodered.org/u/tmdoit)\ **Replies:** 9\ **Last updated:** [28 August 2018 20:09 UTC](https://discourse.nodered.org/t/sqlite-add-support-for-mustache-in-fixed-statement/2572 "2018-08-28T20:09:54Z")
Like in MSSQL node, with this solution there is no need to use additional node for query gluing. --- ## [Map needs less transparency?](https://discourse.nodered.org/t/map-needs-less-transparency/2580)
**Author:** [@TotallyInformation](https://discourse.nodered.org/u/TotallyInformation)\ **Replies:** 4\ **Last updated:** [27 August 2018 06:30 UTC](https://discourse.nodered.org/t/map-needs-less-transparency/2580 "2018-08-27T06:30:16Z")
Hi, just got round to upgrading my "live" HA system so this is the first time that the map overview has been useful. I note that the background is a little too transparent which makes it hard to read: It might be bet… --- ## [File In Node Error Deprecated](https://discourse.nodered.org/t/file-in-node-error-deprecated/2524)
**Author:** [@jmorris644](https://discourse.nodered.org/u/jmorris644)\ **Replies:** 1\ **Last updated:** [23 August 2018 22:20 UTC](https://discourse.nodered.org/t/file-in-node-error-deprecated/2524 "2018-08-23T22:20:21Z")
For the first time I am adding some file manipulation capabilities to one of my flows. I noticed that error notification for the File In node has been deprecated. The information about the node states to use the Catch no… --- ## [\[enhancement\]to Rate limiting in Delay node to work in milliseconds](https://discourse.nodered.org/t/enhancement-to-rate-limiting-in-delay-node-to-work-in-milliseconds/2514)
**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\ **Replies:** 3\ **Last updated:** [23 August 2018 17:42 UTC](https://discourse.nodered.org/t/enhancement-to-rate-limiting-in-delay-node-to-work-in-milliseconds/2514 "2018-08-23T17:42:29Z")
I was wanting to use the Delay node in rate limiting mode to control a string of leds but it has a minimum rate of 1 msg/sec Could it be changed to allow milliseconds as well as secs/minutes/hours/days as it does in sta… --- ## [TCP Node replacing complete msg object. Not just payload](https://discourse.nodered.org/t/tcp-node-replacing-complete-msg-object-not-just-payload/2516)
**Author:** [@jmorris644](https://discourse.nodered.org/u/jmorris644)\ **Replies:** 7\ **Last updated:** [23 August 2018 17:38 UTC](https://discourse.nodered.org/t/tcp-node-replacing-complete-msg-object-not-just-payload/2516 "2018-08-23T17:38:34Z")
Since I upgraded to 0.19 I had a new bug that I had to track down. It seems as if the TCP Request node is now replacing the complete msg object and not just the payload. I was able to determine this by putting a debug … --- ## [Node-red-contrib-canbus](https://discourse.nodered.org/t/node-red-contrib-canbus/2506)
**Author:** [@Rothhp](https://discourse.nodered.org/u/Rothhp)\ **Replies:** 0\ **Last updated:** [23 August 2018 10:00 UTC](https://discourse.nodered.org/t/node-red-contrib-canbus/2506 "2018-08-23T10:00:07Z")
There are two versions of the CAN frame—CAN 2.0 A and CAN 2.0C B. CAN 2.0 A uses 11-bit identifiers (standard frame), and CAN 2.0 B uses a 29-bit identifier (extended frame). In node-red-contrib-canbus I can read both 1… --- ## [\[core\]\[mqtt-in\] Shared Subscriptions for core node MQTT-In (MQTT v5)](https://discourse.nodered.org/t/core-mqtt-in-shared-subscriptions-for-core-node-mqtt-in-mqtt-v5/2475)
**Author:** [@loldiges](https://discourse.nodered.org/u/loldiges)\ **Replies:** 2\ **Last updated:** [22 August 2018 12:50 UTC](https://discourse.nodered.org/t/core-mqtt-in-shared-subscriptions-for-core-node-mqtt-in-mqtt-v5/2475 "2018-08-22T12:50:21Z")
Hi, this is the first self created topic in this forum, be kind please :stuck\_out\_tongue: : Short: Assuming a MQTT Broker capable of shared subscriptions MQTT.js "supports" shared supscriptions (at least not prevents… --- ## [\[SUGGESTION\] add Append to change node](https://discourse.nodered.org/t/suggestion-add-append-to-change-node/2375)
**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\ **Replies:** 12\ **Last updated:** [18 August 2018 15:59 UTC](https://discourse.nodered.org/t/suggestion-add-append-to-change-node/2375 "2018-08-18T15:59:07Z")
I end up using a (simple) JSONata expression to append text to existing msg.payloads (e.g when sending tweets out) Is there a none JSONata/JS way of doing this? If not, how about adding Append as an option in the chan… --- ## [Variable input on node](https://discourse.nodered.org/t/variable-input-on-node/2189)
**Author:** [@glconceicao](https://discourse.nodered.org/u/glconceicao)\ **Replies:** 21\ **Last updated:** [17 August 2018 18:05 UTC](https://discourse.nodered.org/t/variable-input-on-node/2189 "2018-08-17T18:05:17Z")
I'm try to use one variable input on node. in my case is a URL on websocket. the user set a URL of the websocket on the HMI, and de rapberry take the URL via modbus. How i can create a variable on properties of the nod… --- ## [Where can I find what network access control for the flow is required](https://discourse.nodered.org/t/where-can-i-find-what-network-access-control-for-the-flow-is-required/2246)
**Author:** [@Mohammed](https://discourse.nodered.org/u/Mohammed)\ **Replies:** 5\ **Last updated:** [15 August 2018 06:32 UTC](https://discourse.nodered.org/t/where-can-i-find-what-network-access-control-for-the-flow-is-required/2246 "2018-08-15T06:32:39Z")
I want to apply network access control for Node-Red flows. For example, TCP node clearly express its network access through host and port properties. However, not all nodes express their network IP/Port. For example, "wi… --- ## [Debug node - on/off causing deploy button to get triggered](https://discourse.nodered.org/t/debug-node-on-off-causing-deploy-button-to-get-triggered/2221)
**Author:** [@krambriw](https://discourse.nodered.org/u/krambriw)\ **Replies:** 7\ **Last updated:** [13 August 2018 12:23 UTC](https://discourse.nodered.org/t/debug-node-on-off-causing-deploy-button-to-get-triggered/2221 "2018-08-13T12:23:02Z")
We might use & think about the behavior of the debug node differently - alright, but for me - I have all my debug nodes off by default, and I just turn them on when I need it for some (debug) reason Not a big issue, but… --- ## [Tweaking the Dashboards for non-matched group sizes](https://discourse.nodered.org/t/tweaking-the-dashboards-for-non-matched-group-sizes/2222)
**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\ **Replies:** 4\ **Last updated:** [12 August 2018 01:09 UTC](https://discourse.nodered.org/t/tweaking-the-dashboards-for-non-matched-group-sizes/2222 "2018-08-12T01:09:19Z")
The default settings for the "widgets" (buttons?) in the SITE part. There are settings for the 1x1 widget, Widget spacing, Group spacing, Group padding. If "you" edit the size of some/any of these, it can cause ali… --- ## [\[minor\]Default Debug to show just current flow](https://discourse.nodered.org/t/minor-default-debug-to-show-just-current-flow/2210)
**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\ **Replies:** 1\ **Last updated:** [10 August 2018 16:47 UTC](https://discourse.nodered.org/t/minor-default-debug-to-show-just-current-flow/2210 "2018-08-10T16:47:05Z")
This might just be me but I've been doing a lot of start/stopping Node-RED and refreshing my browser window and when I do that - the debug defaults to showing debug output from all flows when I always just want the curre… --- ## [Add blue square when delay node is rate limiting](https://discourse.nodered.org/t/add-blue-square-when-delay-node-is-rate-limiting/2186)
**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\ **Replies:** 1\ **Last updated:** [10 August 2018 06:49 UTC](https://discourse.nodered.org/t/add-blue-square-when-delay-node-is-rate-limiting/2186 "2018-08-10T06:49:32Z")
The default mode of the Delay node adds a blue status square when its been triggered but when in rate limiting mode, it doesn't I add a dummy delay node below the rate limiting node so I can tell when the rate limit per… --- ## [development in node-red](https://discourse.nodered.org/t/development-in-node-red/2106)
**Author:** [@tinsoft](https://discourse.nodered.org/u/tinsoft)\ **Replies:** 4\ **Last updated:** [7 August 2018 01:21 UTC](https://discourse.nodered.org/t/development-in-node-red/2106 "2018-08-07T01:21:41Z")
Good afternoon. I would like to know if with node-red I can develop the application in windows and then load it into a rapsberry pi with linux and if you can as it would be done. Regards, and thank you very much. --- ## [A feature request for dashboards](https://discourse.nodered.org/t/a-feature-request-for-dashboards/2088)
**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\ **Replies:** 10\ **Last updated:** [6 August 2018 09:29 UTC](https://discourse.nodered.org/t/a-feature-request-for-dashboards/2088 "2018-08-06T09:29:59Z")
I am still learning about this part of it and I know some of you could do this with one hand tied behind your back. Although you can add pictures to the BACKGROUND of a web page, when you make a group for buttons, text,… --- ## [Password Change and Profile Facility and User Accounts](https://discourse.nodered.org/t/password-change-and-profile-facility-and-user-accounts/1974)
**Author:** [@anwarbashir](https://discourse.nodered.org/u/anwarbashir)\ **Replies:** 0\ **Last updated:** [1 August 2018 15:18 UTC](https://discourse.nodered.org/t/password-change-and-profile-facility-and-user-accounts/1974 "2018-08-01T15:18:11Z")
I have Node-RED applications on CF Bluemix. I can create additional applications using ToolChain and Git. At the moment I create an application and then run it to configure with username and password. To change the pass… --- ## [Before and after values for rbe node](https://discourse.nodered.org/t/before-and-after-values-for-rbe-node/1923)
**Author:** [@chainhead](https://discourse.nodered.org/u/chainhead)\ **Replies:** 2\ **Last updated:** [31 July 2018 10:06 UTC](https://discourse.nodered.org/t/before-and-after-values-for-rbe-node/1923 "2018-07-31T10:06:14Z")
For the Report by Exception node, I get the message that caused a change. However, I would like to know the previous message also so that I can handle the 'nature' of the change. Currently, before every node.send(msg) t… --- ## [Topic-wise delay in Delay node?](https://discourse.nodered.org/t/topic-wise-delay-in-delay-node/1856)
**Author:** [@chainhead](https://discourse.nodered.org/u/chainhead)\ **Replies:** 3\ **Last updated:** [31 July 2018 09:38 UTC](https://discourse.nodered.org/t/topic-wise-delay-in-delay-node/1856 "2018-07-31T09:38:37Z")
Suppose the Delay node is set to delay messages topic wise (Rate limit, msg.topic instead of all messages). When a msg.reset is sent with msg.topic set, will the delay be cleared for that topic? I want to clear the delay… --- ## [Node-red-node-email tls check](https://discourse.nodered.org/t/node-red-node-email-tls-check/1853)
**Author:** [@Schreck](https://discourse.nodered.org/u/Schreck)\ **Replies:** 2\ **Last updated:** [30 July 2018 05:54 UTC](https://discourse.nodered.org/t/node-red-node-email-tls-check/1853 "2018-07-30T05:54:04Z")
Hello, we are trying to send notificiation mails inside our company. For that, we have an internal SMTP we can contact. While trying to send a new mail, node-red complains about not getting the local issuer certificate. … --- ## [Could we use Nuttx + iot.js as headless platform infrastructure?](https://discourse.nodered.org/t/could-we-use-nuttx-iot-js-as-headless-platform-infrastructure/1888)
**Author:** [@einzeln00](https://discourse.nodered.org/u/einzeln00)\ **Replies:** 3\ **Last updated:** [29 July 2018 20:32 UTC](https://discourse.nodered.org/t/could-we-use-nuttx-iot-js-as-headless-platform-infrastructure/1888 "2018-07-29T20:32:17Z")
Hi, Node-RED community: I have been looking for a platform like this for some time but got hooked when the first time knowing it. (or you just want to know what's related to the topic, jump to the bold line) I had som… --- ## [Proposal: allow the change node to display status objects](https://discourse.nodered.org/t/proposal-allow-the-change-node-to-display-status-objects/1643)
**Author:** [@drmibell](https://discourse.nodered.org/u/drmibell)\ **Replies:** 12\ **Last updated:** [29 July 2018 14:54 UTC](https://discourse.nodered.org/t/proposal-allow-the-change-node-to-display-status-objects/1643 "2018-07-29T14:54:16Z")
All, This suggestion may seem a bit odd, but please bear with me. I have a couple of projects that make heavy use of node.status displays in the editor and status messages caught by status nodes and shown in the dashboa… --- ## [API - Flows stopped due to missing node types](https://discourse.nodered.org/t/api-flows-stopped-due-to-missing-node-types/1780)
**Author:** [@gekko68](https://discourse.nodered.org/u/gekko68)\ **Replies:** 1\ **Last updated:** [24 July 2018 12:21 UTC](https://discourse.nodered.org/t/api-flows-stopped-due-to-missing-node-types/1780 "2018-07-24T12:21:39Z")
Guys, we have hundreds of nodes developed . Sometimes the installation doesn't work out of the box. As our application depends on a working system we need to do some smoke tests. Therefore the questions is whether there… --- ## [Whether have BLE mesh node](https://discourse.nodered.org/t/whether-have-ble-mesh-node/1769)
**Author:** [@Chris](https://discourse.nodered.org/u/Chris)\ **Replies:** 0\ **Last updated:** [24 July 2018 03:56 UTC](https://discourse.nodered.org/t/whether-have-ble-mesh-node/1769 "2018-07-24T03:56:07Z")
Not sure whether the noble node support BLE mesh follow SIG standard feature ? I want to use related node implement mesh application for home automation. Do you have any suggestion..? --- ## [How to test bug fix on local Node-Red installation?](https://discourse.nodered.org/t/how-to-test-bug-fix-on-local-node-red-installation/1345)
**Author:** [@igrowing](https://discourse.nodered.org/u/igrowing)\ **Replies:** 7\ **Last updated:** [23 July 2018 14:55 UTC](https://discourse.nodered.org/t/how-to-test-bug-fix-on-local-node-red-installation/1345 "2018-07-23T14:55:54Z")
Hi, I want to fix a bug and i cloned node-red from github. Once I think the bug is fixed i want to test it first on my node-red installation. However, I can’t find relevant file(s) in the installation. It’s spoken abo… --- ## [Possible improvements for link nodes](https://discourse.nodered.org/t/possible-improvements-for-link-nodes/1739)
**Author:** [@michaelblight](https://discourse.nodered.org/u/michaelblight)\ **Replies:** 0\ **Last updated:** [22 July 2018 13:46 UTC](https://discourse.nodered.org/t/possible-improvements-for-link-nodes/1739 "2018-07-22T13:46:30Z")
Originally I posted a feature request to make the layout of nodes more flexible ("handles at top and bottom"). For the record, I now abhor linkages going to the left, and love the link nodes. It forces me to break the fl… [Previous page](https://discourse.nodered.org/c/development/8.md?page=43) [Next page](https://discourse.nodered.org/c/development/8.md?page=45)