# Documentation for WagoAPP:HTTP, JSON; WagoSysCurl

**URL:** <https://www.wago.community/t/documentation-for-wagoapp-http-json-wagosyscurl/2277>\
**Category:** CODESYS\
**Tags:** how-to\
**Created:** [September 9, 2025, 12:19pm UTC](https://www.wago.community/t/documentation-for-wagoapp-http-json-wagosyscurl/2277 "2025-09-09T12:19:21Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Boettcher](https://sea2.discourse-cdn.com/flex016/user_avatar/www.wago.community/boettcher/32/1822_2.png) [@Boettcher](https://www.wago.community/u/Boettcher)\
**Post date:** [September 9, 2025, 12:19pm UTC](https://www.wago.community/t/documentation-for-wagoapp-http-json-wagosyscurl/2277/1 "2025-09-09T12:19:21Z")

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I am working on two projects right now that are a little bit out of my comfort-zone:

-One project needs to have a CC100 establish secure HTTPs communication with our customer’s webserver.

-The second project needs to have an air-gaped PFC200 communicate via HTTP to a sensor that hosts it’s own RESTfull API.

I see there are Wago Libraries for these tasks but I’m not sure if I am using them correctly. I am very much a “RTFM” person but I can not find any more information that what is available in the CODESYS “Library Manager” window. Are there any example projects or high-level documentation for these libraries so I know if I am using the right tool correctly?

At this point I’m not sure if it would be better to use the CODESYS functions through the WAGO libraries or if I should off-load this to NodeRED.

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**Author:** ![WagoDamRud](https://sea2.discourse-cdn.com/flex016/user_avatar/www.wago.community/wagodamrud/32/258_2.png) [@WagoDamRud](https://www.wago.community/u/WagoDamRud)\
**Post date:** [September 10, 2025, 2:14pm UTC](https://www.wago.community/t/documentation-for-wagoapp-http-json-wagosyscurl/2277/2 "2025-09-10T14:14:34Z")

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it depends what do you need to do with this data and what kind of application it is

ofc it’s much easier to parse data and make get/post requests in NodeRED, but if you need to use special modules in PFC200, then you should use Codesys:

- WagoAppHTTP.FbHTTP\_Client\_Curl (WAGO library, easy to use, but response is in STRING, so there are some problems with special characters)
- Web Client SL (from Codesys, but its more complicated)

In CC100 you can also use serial and I/O without problems with NodeRED if you turn off runtime.  
In PFC200 you can also use simple I/O if you disable runtime and run Docker image with [WAGO/pfc-modbus-server: Docker Image to run PFC IO points as Modbus IO](https://www.wago.community/t/wago-pfc-modbus-server-docker-image-to-run-pfc-io-points-as-modbus-io/106) but you can use special modules (called mailbox modules) like DALI/KNX/RS