Immoscout: Real estate type not found

[mxmehl]

I'd like to use your excellent tool for finding an estate. Unfortunately, with Immoscout, I'm running into an error which I don't fully understand:

[2026-01-25 09:53:09] ERROR: Error: Real estate type not found: eigentumswohnung-mit-garten
    at convertWebToMobile (file:///fredy/lib/services/immoscout/immoscout-web-translator.js:155:13)
    at Module.init (file:///fredy/lib/provider/immoscout.js:138:16)
    at file:///fredy/lib/services/jobs/jobExecutionService.js:163:25
    at Array.map (<anonymous>)
    at executeJob (file:///fredy/lib/services/jobs/jobExecutionService.js:161:39)
    at runSingle (file:///fredy/lib/services/jobs/jobExecutionService.js:129:11)
    at EventEmitter.<anonymous> (file:///fredy/lib/services/jobs/jobExecutionService.js:63:5)
    at EventEmitter.emit (node:events:519:28)
    at file:///fredy/lib/api/routes/jobRouter.js:154:9
    at next (/fredy/node_modules/0http/lib/next.js:58:20)

This seems to be referenced here, but I don't quite get the reason:

fredy/lib/services/immoscout/immoscout-web-translator.js

Lines 149 to 157 in e859250

	if (!realType) {
	// Test for seo optimized apartment path (only used on the ImmoScout web app)
	if (WEB_PATH_TO_APARTMENT_EQUIPMENT_MAP[realTypeKey]) {
	additionalParamsFromWebPath = WEB_PATH_TO_APARTMENT_EQUIPMENT_MAP[realTypeKey];
	realType = REAL_ESTATE_TYPE['wohnung-mieten'];
	} else {
	throw new Error(`Real estate type not found: ${realTypeKey}`);
	}
	}

Is it only possible to use it to search for flats for rents and not for buying?

[orangecoding]

Hey,

this is most certainly due to you setting a filter on immoscout which is not yet supported. You know, in order to prevent being blocked, we use the immoscout mobile api, however the requests are very different compared to the web traffic which is why we've introduced a translation layer. Supporting all filters is almost impossible as a single developer and you might have just hit one of the cases where the translation was not implemented.

Can you provide me an immoscout url so that I can check how complicated it is to add this filter?

Side Note: I wasn't aware, Deutsche Bahn is busy in the Open Source Community :)

[mxmehl]

Ah right, I remember there was a crux to it. No worries about the error, I appreciate you supporting others in this jungle called estate market!

The URL (slightly anonymized) is https://www.immobilienscout24.de/Suche/de/niedersachsen/stade-kreis/buxtehude/eigentumswohnung-mit-garten?rented=false&numberofrooms=4.0-

Re Open Source @ DB: We're doing our best, but as you may figure, this issue with Fredy belong to my private space of open source engagement ;)

[orangecoding]

Fixed in 2465514

use the latest Release (which is 19.1.1 as of now)

Edit: Use Release 19.2.0. Contains lot's of ui improvements :)

[mxmehl]

Thanks, that was quick! But unfortunately, the incoming results do not match the expected output (from the website).

I now see flats to be rented in the results, while I searched for those to buy ("eigentumswohnung"). So I guess there needs to be another filter for the conversion?

If you tell me how I can find this out myself without having to have the mobile app installed, I can also try to come up with a PR based on your recent commit.

[orangecoding]

Hu. That's a wild one.

Ok, I'll check on it again. Reverse engineering the correct APIs is not that easy. There's a document explaining it on the top level of this repo

[orangecoding]

@mxmehl This version should finally fix your issue. Dude that was a hard one.. They make it more and more complicated to sniff on the traffic. The setup you need iss... Abenteuerlich as we germans tend to say ;)

https://github.com/orangecoding/fredy/releases/tag/19.2.2

Let me know if the results match your expectations. If so, please close this issue as done. Thanks