Embedded Files
firebase mini skills project
firebase mini skills project
Introduction
Introduction
These firebase mini skills assume you have undertaken our 12COMP class.
These firebase mini skills assume you have undertaken our 12COMP class.
NOTE: The videos are made for year 12 and so there are references to 12COMP as opposed to 13COMP
NOTE: The videos are made for year 12 and so there are references to 12COMP as opposed to 13COMP
create a firebase realtime database
create a firebase realtime database
naming it 13COMP-2025-firstname-lastname
read all firebase records in the path
read all firebase records in the path
a) Add code to:
Read all firebase records in the path.
Display the records on the screen.
Run the program
read all records in a path - part 1
read all records in a path - part 2
process different record types
process different record types
a) Add code to:
Pass the read record & read all functions the name of the function to process the data.
Modify the read record & read all functions to call a function to process the data.
Define your process data functions.
Run the program
firebase realtime rules
firebase realtime rules
Watch the videos and use the rules playground to try out various rules
CLICK IMAGE BELOW FOR NEW VIDEO EXPLAINING FIREBASE RULES
CLICK IMAGE BELOW FOR NEW VIDEO EXPLAINING FIREBASE RULES
rules - part 2
rules - part 3; role base authorisation
validation
"first_name": {".validate": "newData.isString()"}
"first_name": {
".validate": "newData.isString() &&
newData.val().length < 100"
}
"age": {".validate":
"newData.isNumber() && newData.val() >= 18 && newData.val() <= 65"
}
"angle": {".validate": "newData.isNumber() &&
(newData.val() == 0 ||
newData.val() == 90 ||
newData.val() == 180 ||
newData.val() == 270)"
}
first_name must be a string
first_name must be a string and its length must not exceed 100 characters
age must be a number between 18 and 65
angle must be a number and can only be one of the values specified (0,90,180 or 270).
readon or Listeners
readon or Listeners
To remove the readon or listener use the .off command:
database.ref(_path + '/' + _key).off();
NOTE: you can also label your readon/listener and then use that to remove the readon/listener:
?????.off();
Address lookup
Address lookup
Running your firebase program from your editor
Running your firebase program from your editor
point to the firebase modules in the cloud:
point to the firebase modules in the cloud:
Page updated
Report abuse