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I usually use PnP JS to make my calls in a SPFx Webpart, this is a great framework, you can expand lookup fields simple and clean. The problem is you cannot use Project Fields in order to query 2 levels, let’s start with an example: In this case you are expanding Title from Workshop and Id from Participant, what about if Workshop have a relation with a City List? in this case you have to use projected fields to query a List from another List Projected Fields From Microsoft, an example I’m exploring a framework CamlJS from Andrei Markeev in order to smooth the user experience in TypeScript in a ReactJs WebPart. This framework was originally developed for JavaScript, so I ended up with some problems. First the result of the Caml Query add a perfix to the Object as you can see here $N_1 is the View and $o_1…

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