HTTP binding - manual GET of Thing

[wars (Ward)]

I have a HTTP binding which grabs an image from the internet every 5 minutes and stores it in an Image item. This is working fine.
Now I also want to be able to grab this image on a manual way, eg by clicking on a button in a widget. Is this possible by calling this http Thing in a rule (DSL)?
Or what is the best approach?

[rlkoshak (Rich Koshak)]

No, but you can use the sendHttpXRequest actions. Actions | openHAB

[J-N-K (Jan N. Klug)]

Did you try sending a REFRESH command to the channel?

[rlkoshak (Rich Koshak)]

I always forget about the REFRESH command. We should probably mention that in the add-on readme. Not all binding support REFRESH (nor does it make sense in all cases).

[wars (Ward)]

@rlkoshak

No, but you can use the sendHttpXRequest actions. Actions | openHAB

Already tried this, but was struggling how-to store the image in a Image item.

@J-N-K

Did you try sending a REFRESH command to the channel?

Never heard of this possibility. How does this work? Although it’s the thing which needs a refresh, no?

[rlkoshak (Rich Koshak)]

@wars

Already tried this, but was struggling how-to store the image in a Image item.

You’ll have to Base64 encode the retrieved binary. There are tutorials on the forum.

@wars

Never heard of this possibility. How does this work? Although it’s the thing which needs a refresh, no?

Send the Item linked to the Channel the REFRESH command:

MyItem.sendCommand(REFRESH)