# Show firebase realtimedb object properties in listviewer **URL:** \ **Category:** Questions about Thunkable X\ **Tags:** listviewer, realtimedb\ **Created:** [April 4, 2019, 8:29am UTC](https://community.thunkable.com/t/show-firebase-realtimedb-object-properties-in-listviewer/73999 "2019-04-04T08:29:32Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![William\_T.Spears](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/william_t.spears/32/31230_2.png) [@William\_T.Spears](https://community.thunkable.com/u/William_T.Spears)\ **Post date:** [April 4, 2019, 8:29am UTC](https://community.thunkable.com/t/show-firebase-realtimedb-object-properties-in-listviewer/73999/1 "2019-04-04T08:29:32Z")
Hi all, i’m new to thunkable so sorry if i missed something from docs. I’ve a firebase realtime db which stores some basic infos about users, categories and devices. My db looks like this – root ---- users ----- idUser0 ------- nameFull = “User Name0” ------- nameAlias = “User0” ----- idUser1 ------- nameFull = “User Name1” ------- nameAlias = “User2” ---- categories ----- idCategory0 ------- name = “Category 1” ------- description = “Description for category 1” ----- idCategory1 ------- name = “Category 1” ------- description = “Description for category 1” ---- devices ----- idDevice0 ------- brand = “Brand” ------- model = “Model” ------- name = “Personal Phone” ------- carrier = “No Carrier” ------- user = /users/idUser0 ----- idDevice1 ------- brand = “Brand 2” ------- model = “Model 2” ------- name = “Work Phone” ------- carrier = “Business carrier” ------- user = /users/idUser1 In the screen “ScreenMain” i placed a block on screen open which gets /users, if error is true i show the error details in an alert, so far i’m fine. If i don’t have error, i’ll get a json object as reply inside value block, how can i show all the nested items (isUser0 and idUser1) inside a listviewer? Thanks in advance to all ---
**Author:** ![domhnallohanlon](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/domhnallohanlon/32/29554_2.png) [@domhnallohanlon](https://community.thunkable.com/u/domhnallohanlon)\ **Post date:** [April 5, 2019, 3:32pm UTC](https://community.thunkable.com/t/show-firebase-realtimedb-object-properties-in-listviewer/73999/2 "2019-04-05T15:32:28Z")
Hi @William_T.Spears, We have a lot of resources about this, but admittedly they are pretty dispersed. I’ll try collect a few of them and do a bit of an FAQ next week. In the meantime, does this help you with your question? > [@API results into a List Viewer](http://community.thunkable.com/t/api-results-into-a-list-viewer/51051/5): > > @Mark, Thanks for your response. I got it working now! The issue is the 'get object from JSON' block will not connect to the 'for each item j in list' block as depicted here: [Not%20Connecting] However if I save the 'get object from JSON - response' block in a list variable 1st, I am then able to connect the variable to the 'for each item j in list' block. Glad to have this working, and I’ve added my final solution below. Thanks, Darren The following shows how to loop through a JSON List… ---
**Author:** ![William\_T.Spears](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/william_t.spears/32/31230_2.png) [@William\_T.Spears](https://community.thunkable.com/u/William_T.Spears)\ **Post date:** [April 8, 2019, 12:31pm UTC](https://community.thunkable.com/t/show-firebase-realtimedb-object-properties-in-listviewer/73999/3 "2019-04-08T12:31:20Z")
Hi @domhnallohanlon, i tried the blocks you mentioned but it didn’t work… or at least i coulnd’t make it work. FirebaseDB will expose data as nested JSON Objects so i can’t cast it directly to list as i would do with a custom API which returns data stored as JSON Array. Is there a way to “extract” all the first level keys? ---
**Author:** ![domhnallohanlon](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/domhnallohanlon/32/29554_2.png) [@domhnallohanlon](https://community.thunkable.com/u/domhnallohanlon)\ **Post date:** [April 11, 2019, 9:12am UTC](https://community.thunkable.com/t/show-firebase-realtimedb-object-properties-in-listviewer/73999/4 "2019-04-11T09:12:20Z")
Hi @William_T.Spears - I’m going to start working on a larger series of tutorials on working with JSON. Keep an eye on #thunkable-cross-tutorials for new posts. Thanks. ---
**Author:** ![William\_T.Spears](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/william_t.spears/32/31230_2.png) [@William\_T.Spears](https://community.thunkable.com/u/William_T.Spears)\ **Post date:** [April 11, 2019, 11:07am UTC](https://community.thunkable.com/t/show-firebase-realtimedb-object-properties-in-listviewer/73999/5 "2019-04-11T11:07:56Z")
@domhnallohanlon many thanks! ---
**Author:** ![ioannis](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/ioannis/32/146956_2.png) [@ioannis](https://community.thunkable.com/u/ioannis)\ **Post date:** [November 8, 2024, 12:15pm UTC](https://community.thunkable.com/t/show-firebase-realtimedb-object-properties-in-listviewer/73999/6 "2024-11-08T12:15:23Z")