node-red

In Node-Red, I would like to be able to send a message and wait for its response using MQTT, in between an HTTP input node and a response one. I think a picture is more relevant to explain this: The problem is an HTTP response node has to be directly linked to an input one somehow, so I thought of saving the whole message in context after receiving an HTTP input, then restore it before sending the response. The problem is that apparently, the structure of the message is circular, hence I can't directly convert it to a string, to store it in context. I've tried different things to solve this

I want to send asynchronous data to the node on configuration. I want to perform a SQL request to list some data in a . On node creation, a server side function is performed When it's done, a callback send data to the node configuration On node configuration, when data is received, the list is created Alternatively, the binary can request database each x minutes and create a cache that each node will use on creation, this will remove the asynchronous part of code, even if it's no longer "live updated". In fact, i'm stuck because i created the query and added it as below : module.exports =

Node-red documentation here gives info on how to embed a single node-red app inside a nodejs app - http://nodered.org/docs/embedding We wanted our site's users to have their own node-red's on different ports for some custom programming. Is it possible to embed multiple node-red apps in a nodejs applicaiton? I tried repeating same steps for embedding by changing settings of each call with different port but only one time it is created. First time, a node-red instance is created based on settings. Next time we call, we get port in use. I assume this has something to do with node require doing

I have a Node-RED application that is bound to an IOT Foundation (iotf) service. I can receive events from devices and handle them appropriately. However, I am now interested in sending commands back to my devices and am having some problems. Nothing is showing up at the device, but by creating an IOTF in node, I can confirm that the command is passing through iotf. I can definitely get commands to pass through iotf using pure python, as the follow code works well: Client code: #!/usr/bin/python import ibmiotf.device from time import sleep options = { "org": "cgmncc", "type": "table", "id":