difference between qrs and engine and json api qlik sense ?

[sasikumar]

Hi Qlikers,

                  What is different between qrs and engine and json api in qlik sense ?

                  What we can do, what we cant do ?

                  Any working examples or links would be helpful...

Thanks,

Sasikumar

[cpomeren003 · Accepted solution]

QRS API:
https://help.qlik.com/en-US/sense-developer/June2019/Subsystems/RepositoryServiceAPI/Content/Sense_R...
https://help.qlik.com/en-US/sense-developer/June2019/APIs/repositoryserviceapi/index.html

Basically everything you can do in the QMC

Engine JSON API:
https://help.qlik.com/en-US/sense-developer/June2019/Subsystems/EngineAPI/Content/Sense_EngineAPI/in...
https://help.qlik.com/en-US/sense-developer/June2019/APIs/EngineAPI/index.html

Basically everything you can do in the Qlik Sense Desktop/Server

Best to check out the links and then see if anything is unclear.

[LDR]

Hi @cpomeren003 

So according your answer if we need to see the script for any app we have to use Engine JSON API instead of QRS API, isn't it?

Thanks

[alex_colombo]

Correct

[LDR]

Thanks @cpomeren003 

[stefanstoichev123]

Just to add a little bit more info:

- QRS api - anything that can be done in the QMC (streams operations, reload task operations, virtual proxies, app upload/delete etc).

- Engine json api - anything you can do with specific app in the Hub - script operations, reload app, add/remove sheets, add/remove/update objects, make selections, bookmarks, session objects, "interrogate" the app to get  data from it etc

And conceptual difference - QRS API is REST based; communication with Engine JSON API is web socket based

Regards!

Stefan