[OH3] Cannot get the HTTP Binding to work

Setup, Configuration and Use Beginners
1

I have several ESP-controlled smart home devices that I’d like to get integrated in my newly installed openHAB, however I can’t get it to work.

For example, I have an LED-Light Strip. To turn it on I can call:

http://{ip}/on

And I can turn it off by calling

http://{ip}/off

How can I integrate this in an item? I created the following Item:

Switch ledStrip “LED Strip Schrank” { http=“>[ON:GET:http://192.168.178.181/on] >[OFF:GET:http://192.168.178.181/off]” }

I added this in my HAPPanel, but calling this doesn’t do anything. What am I missing?

I also checked /var/log/openhab/openhab.log but it didn’t show any errors.

2

That item definition is for OH2 (1.x binding) and will not work on OH3. You need to define channels for your HTTP Thing which will control the ON/OFF states.

The Add-on documentation should help with this:

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3

That’s a bummer.

I also tried to set up my thing using the web GUI - Without any success:

Unbenannt
Unbenannt856×1410 97.9 KB

What am I missing?
Is it a problem that I do not have one url for toggeling my ledStrip? Would it be better to have something like http://192.168.178.181/getStatus?set=[on|off]?

4

what happens if you add the slash to your command extension?

PS: did you add the state transfomation? why?

5

hi Jan

for OH3, these should (hopefully) work…

Things file

items file

6

try to add %2$s to the Command URL Extension.

The state URL extension seems to be wrong as well. must be something like
/getState or /status. You can find this in the reference material of your device. Try to test it in the browser first, if you get a proper JSON reply from the device, then it is correct.

7

I can’t get this simple PUT method to work using the OH3 http binding configured via the ui.

The following curl command works from a shell.
“curl -v -X PUT http://192.168.1.22:8080/api/v1/setpoint/discharge/588”

However the following does not work (from OH3 log trace)
“Sending to ‘http://192.168.1.22:8080/api/v1/setpoint/discharge/’: Method = {PUT}, Headers = {Accept-Encoding: gzip, User-Agent: Jetty/9.4.20.v20190813, Content-Type: text/html}, Content = {580}”

I am expecting the Content value of 580 to be appended to the http://192.168.1.22:8080/api/v1/setpoint/discharge/ url.
Is there anyway to view the fully posted url?

Not having any issues with the GET status values from the same base url.

8

The URL is different. As mentioned above: add %2$s to the commandURL to Use the value in the URL.

9

Thanks, I finally got it to work :+1:
I prefer the files anyway. However one small thing for everyone in the future: The quotes have to be changed to " in order to work.

I figured this’d be used for evaluating the response, but I guess it’s the endpoint called to get the status (which makes much more sense).

Thank you all so much, I spend hours figuring out how to get this to work =0

One last question:

The HTTP-Doc has the following example JSON for the JSONPATH-Example:

{device: {status: { temperature: 23.2 }}}

Shouldn’t that be

{"device": {"status": { "temperature": 23.2 }}}

in order to be a correct JSON notation?

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10

Yes.

11

May I ask you for your working things file?
I am struggling with the same issue

My OH2 item looks like:

Switch ALL4176_Relais1        "SRV-Proxmox"      <switchoffice>   (gKE_Technikraum)    { http=">[ON:POST:http://192.168.100.229/xml/jsonswitch.php?id=1&set=1{Authorization=Basic aaaaaaaaaaaaaaaaaaaa=}] >[OFF:POST:http://192.168.100.229/xml/jsonswitch.php?id=1&set=0{Authorization=Basic aaaaaaaaaaaaaaaaaaaa=}]" }
Switch ALL4176_Relais1Status  "Relais 1 [%s]"               { http="<[ALL4176_StatusCache:1000:JS(ALL4176switch_1.js)]" }

My first unsuccessful approach is this:

 Thing http:url:all4167 "Multisteckdose ALL4167" [ baseURL="http://192.168.100.229/xml/jsonswitch.php"] {
   Channels:
      Type switch : all4176_relais1        [ commandExtension="?id=1&set=", onValue="1{Authorization=Basic aaaaaaaaaaaaaaaaaaaa=}", offValue="0{Authorization=Basic aG9tZXI6Y2RlM1ZGUiQ=}", commandMethod="POST" ]
      Type switch : all4176_relais1status  [ stateExtension="", ????????]

Are I am on the right way? How to do the js transformation?

12

For me, the solution in Post #5 Worked:

Thing http:url:ledStrip “ledStrip label” @ “Room” [ baseURL=“http://192.168.178.181/”, refresh=60] {
Channels:
Type switch : ledStripOnOff “On-Off switch” [ commandExtension="%2$s", onValue=“on”, offValue=“off”, commandMethod=“GET” ]
}

But I am using OH3

But I guess you should upgrade from OH2 to OH3 anyway.

13

I just realised your command extension is missing the variable. I think it needs to look something like this:

commandExtension="?id=1&set=%2$s"

FYI: I think it’s best to open up a new thread for your issue. This thread has been marked solved (for “my” problem anyways…)

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