I'm trying to join a JSON with a GeoJSON on a name field. The JSON without the coordinates contains real-time data about the occupation of a parking lot. The only useful field of the GeoJSON with coordinates file is logically the geometry field. See figure 1 for the service model. Figure 2 shows the output. You can see that fields of the external GeoJSON aren't added. Figure 3 shows the settings for the Field Enricher (FEF). Figure 4 shows the settings for the Field Mapper, just in case.
If there are still some additional questions, please notify me.