Firebase Realtime Database For Web Tutorial - Server Side : Part 2

A Beginner friendly guide to learn the basics of Firebase Realtime Database so you can implement it in your next web apps projects.

You will learn how data is structured, what are listeners and events, what is a query composed of, how to query the database and some examples of how to implement all that stuff.
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Client side vs server side database operations
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Timestamps
00:00 Saving data
08:02 Updating data
13:53 Deleting data
15:41 Reading data
23:27 Querying the database

[markrusso]

For updating and deleting the data, i'm getting the following message in the terminal "Error: Reference.child failed: First argument was an invalid path = "undefined". Paths must be non-empty strings and can't contain ".", "#", "$", "[", or "]". Any ideas how to fix this? Thanks.

[nikkirosemagnaye]

Hi, can you make a video about fetching those data in html page?

[hammadaassia]

Hi, what is save you dont have file called save min =1:06 plz

[anshdixit]

Bro How to redirect to different page when data is successfully uploaded??

[anjalibharti]

nodemon app.js isn't working in my terminal there is some error & error is nodemon : The term 'nodemon' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of
the name, or if a path was included, verify that the path is correct and try again.
At line:1 char:1
+ nodemon app.js
+
+ CategoryInfo : ObjectNotFound: (nodemon:String) [], CommandNotFoundException
+ FullyQualifiedErrorId : CommandNotFoundException
how i can resolve this and localhost:3000 is also not working