# Http post request **URL:** \ **Category:** Questions & Help\ **Created:** [December 11, 2024, 7:26am UTC](https://community.homey.app/t/http-post-request/123564 "2024-12-11T07:26:16Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![tlrider](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/tlrider/32/81211_2.png) [@tlrider](https://community.homey.app/u/tlrider)\ **Post date:** [December 11, 2024, 7:26am UTC](https://community.homey.app/t/http-post-request/123564/1 "2024-12-11T07:26:16Z")
Hello everyone, I am trying to read out values, e.g. the water consumption, from a 7 year old Grünbeck SC18. I did this successfully with Openhab before I bought a Homey pro 2023. If I try to make the same http query with a logic card in the flows, I always get the following error ‘request to [http://192.168.10.53/mux\_http](http://192.168.10.53/mux_http) failed, reason: Parse Error: Invalid header value char’. I have also tried it with a JavaScript but get the same error. The web server of the Grünbeck system uses http 1.1. The request is also successful via a REST client in the browser. Do you have any idea what I am doing wrong or why Homey is giving such an error? ![image](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/f/2/f229ae07b911676702d004dd3e79ee79c16af798.png) ![image](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/3/e/3ee330a55bc3170c25a87ca30f51bdd4254a0f73.png) ![image](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/9/a/9a53ff9eb1311aba460eeff1176079b6910d01af.png) ---
**Author:** ![robertklep](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/robertklep/32/160628_2.png) [@robertklep](https://community.homey.app/u/robertklep)\ **Post date:** [December 11, 2024, 8:51am UTC](https://community.homey.app/t/http-post-request/123564/2 "2024-12-11T08:51:49Z")
Your device apparently sends back a header with invalid characters, which Node.js (the system underlying both flows and Homeyscript) doesn’t allow. I don’t think there’s a way to fix this, as it would require starting Node.js with a particular command line option (`--insecure-http-parser`), which isn’t possible with Homey. ---
**Author:** ![Andy\_Henderson](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/andy_henderson/32/80642_2.png) [@Andy\_Henderson](https://community.homey.app/u/Andy_Henderson)\ **Post date:** [December 11, 2024, 2:44pm UTC](https://community.homey.app/t/http-post-request/123564/3 "2024-12-11T14:44:00Z")
Try using a GET instead of a POST? Andy ---
**Author:** ![RonnyW](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/ronnyw/32/10879_2.png) [@RonnyW](https://community.homey.app/u/RonnyW)\ **Post date:** [December 11, 2024, 2:49pm UTC](https://community.homey.app/t/http-post-request/123564/4 "2024-12-11T14:49:28Z")
Why not using the app? > **[Grünbeck](https://homey.app/de-de/app/de.ronnywinkler.homey.gruenbeck/Gr%C3%BCnbeck/)** > > Erleben Sie neue Welten weichen Wassers! ---
**Author:** ![robertklep](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/robertklep/32/160628_2.png) [@robertklep](https://community.homey.app/u/robertklep)\ **Post date:** [December 11, 2024, 2:54pm UTC](https://community.homey.app/t/http-post-request/123564/5 "2024-12-11T14:54:34Z")
That would be too easy 😂 ---
**Author:** ![tlrider](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/tlrider/32/81211_2.png) [@tlrider](https://community.homey.app/u/tlrider)\ **Post date:** [December 12, 2024, 1:13pm UTC](https://community.homey.app/t/http-post-request/123564/6 "2024-12-12T13:13:45Z")
Hi, I couldn’t register my system in the myProduckt app all the time, so I didn’t use your tool. Today the registration worked and now I can also use the app. Thank you very much! ---
**Author:** ![tlrider](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/tlrider/32/81211_2.png) [@tlrider](https://community.homey.app/u/tlrider)\ **Post date:** [December 12, 2024, 1:15pm UTC](https://community.homey.app/t/http-post-request/123564/7 "2024-12-12T13:15:05Z")
You grow with your challenges 😉