Hi Rohan,

Go through with below documents

Consume API : https://success.outsystems.com/Documentation/11/Extensibility_and_Integration/REST/Consume_REST_APIs

Expose API : https://success.outsystems.com/Documentation/11/Extensibility_and_Integration/REST/Expose_REST_APIs

Additionally

https://www.outsystems.com/training/courses/116/integrating-with-web-services/#:~:text=This%20course%20introduces%20you%20to,well%20as%20consuming%20existing%20ones.

Follow this OutSystems step by step video tutorial and try out the demo.

Thanks, Aadhavan S

Hi Rohan,

I hope you are great mate.

Please find the useful links for your reference,

what does mean API

https://success.outsystems.com/Documentation/11/Reference/OutSystems_APIs

API is the acronym for Application Programming Interface, which is a software intermediary that allows two applications to talk to each other. Each time you use an app like Facebook, send an instant message, or check the weather on your phone, you're using an API

Rest API integration for beginners,

https://www.youtube.com/watch?v=O3sjYSa6Dts

how to consume REST API

https://www.youtube.com/watch?v=i6KFDJ83KSI

how to expose REST API

https://www.youtube.com/watch?v=Hd1p3kTVpP4

hope this helps you.

kind Regards,

Ajit kurane.

Hi,

Also please find the sample OML for your reference.

kind Regards,

Ajit kurane.