Send data from NR to HA

[Stephen_Tittel]

Hi, I’m a noob, just starting with NR. I’m not a programmer at all, but ready to learn.

I read the community portal to look for what I’m wondering about.

I’m playing around with data which is retrieved by NR by using the http request and json nodes.

I wonder how I can send this information to Home Assistant? (Maybe sending data is not the correct word). For example: I like to retrieve the Formula 1 drivers standings, and like to send the top 3 drivers to Home Assistant after each race. The current standing will be a schedule which check if a race has been done.

Retrieving the F1 drivers standings via the API-call is already been achieved.

Below is the response of the API call.

And the node-red flow so far to retrieve the information via de API call.

The json parsing has been done. Now I wonder how to address the individual parts (position, driver number, driver name, points) of the json structure and “translate” it to a sensor which I can present in HA.

There is of course the alternative way: directly use the REST option in configuration.yaml. But I’m too curious if it is possible to push this kind of information from NR to HA.

[sheminasalam]

There are a number of options for you to sent data to HA from NR,.

• The best is the following custom integration which will allow you to make sensors in NR and update the values to HA. It is easy and you check it out.

zachowj/hass-node-red

• Another method is to use mqtt, You can create mqtt sensors in HA and send data to it from NR using mqtt publish node.
• Yet another way is to create input_text entities in HA and update values to it from NR using the set value service.

There may be more methods also

[AlmostSerious (Marcus Peters)]

Another method is to make a HTTP Call to the HA API.
However, I agree the hass-node-red custom component is really awesome.

Additionally this:

Create and update state of entity ID with node red

Instead of using the API (this creates only temporary entities that are gone after a reload/restart, simply use the entity node. This allows you to create a persistant entitiy based on the values from the messages. entity Creates an entity in Home Assistant which can be manipulated from this node. node-red-contrib-home-assistant-websocket : ha-entity

[Stephen_Tittel]

Hi,

I finally have the time to check your 1st option, the HACS integration. I’ll let you know how I progress.

Update:

1. Installed the HACS part (restart HA)
2. Installed the Node Red companion via Configuration, Integration, Add Integration

Lets see what I find.

[Stephen_Tittel]

Yes! After a good search, reading and trying out I succeed to catch data into sensors with the MultiScrape option.

First you have to install Multiscrape Via HACS, and add the integration under Configuration.

Then I figure out the structure of the web-page, in my case Formula one (Standings).

I used Chrome together with an extension to select the right classes out of the html code.

. With the help of the CSS Selector Tester I figured out the right selects.

So my goal was to capture the driverstanding for the first three drivers and store them in a sensor.

The following code I used to achieve the capturing of the first driver.

After restart HA I searched for one of the sensors, and voila, there it is!

Next step is to show the first three drivers. A couple of questions pops up:

1. is there a Custom card already available to show a competition ranking?
2. Or modify custom card code to show the drivers standings?

Besides I still like to understand how I could show the results from an API goal, from within HA, but also via Node Red towards HA. Yesterday, I installed the code to build send information from Node Red to HA.