Creating relationships in AGOL without Arcgis Pro?

[lightpro]

Is it possible to create relationship classes in AGOL without using Arcgis Pro? How does someone do this if they don't have a pro license for example? 

I realise it's possible to use the analysis tool to create a hosted join layer but it's not quite the same and you end up with a separate feature layer for each join. 

[KevinMacLeodCAI]

Not that I can see. Hopefully it's on the road map.

https://community.esri.com/t5/arcgis-online-questions/adding-related-table-to-arcgis-online-feature-...

I think it was an Idea but you could vote for it here. I tried searching and it did not come up.

https://community.esri.com/t5/arcgis-online-ideas/ability-to-create-new-relationship-in-arcgis-onlin...

[lightpro]

Done!

[PaulSweeney3]

You can do it by adding to the definition . You need to build the relationship in json and the layer you want to add to the feature service and add it to your feature service definition. I have done it before but you need to be careful as it's not a supported workflow . I have a document describing it in more detail I ll share it with you next time i am at my desktop. Some links below as well

https://developers.arcgis.com/rest/services-reference/online/add-to-definition-feature-service-.htm 

https://community.esri.com/t5/arcgis-rest-api-questions/how-to-modify-relationships-of-hosted-servic... 

[lightpro]

That would be great thanks. I found this article which mentions the ability to add or delete relationships through the REST API but it says that's it's not recommended.

https://support.esri.com/en/technical-article/000025302

[AndreasB]

Hi Paul,

Could you possible send me the more detailed document as well? I'm really interested! 

Thanks in advance,

Andreas