My goal is to use the polymerfire
element to send a request to a Firebase endpoint to detect if there is data there and, if so, its content.
Please include in your answer a working demo if possible and extra points if you point to some good documentation as the current documentation is insufficient.
I expect the demo page to look like:
CLICK ME
ornithischia
foo bar baz
And when the CLICK ME button is pressed, the following to appear in the console:
"You clicked me!"
"triceratops"
"{appeared: -68000000, height: 3, length: 8, order: "ornithischia", vanished: -66000000, weight: 11000}"
The the demo page looks like:
CLICK ME
foo bar baz
And when the CLICK ME button is pressed, the following actually appears in the console:
"You clicked me!"
"triceratops"
"{}"
<!doctype html>
<head>
<meta charset="utf-8">
<!-- Source: https://github.com/Download/polymer-cdn -->
<base href="https://cdn.rawgit.com/download/polymer-cdn/1.7.0.2/lib/">
<script src="webcomponentsjs/webcomponents-lite.min.js"></script>
<link rel="import" href="polymerfire/polymerfire.html">
<link rel="import" href="paper-button/paper-button.html">
</head>
<body>
<dom-module id="x-element">
<template>
<style></style>
<firebase-app name="my-app"
auth-domain="dinosaur-facts.firebaseapp.com"
database-url="https://dinosaur-facts.firebaseio.com/"
>
</firebase-app>
<p>
<paper-button on-tap="_onTap">Click Me</paper-button>
</p>
<!---->
<firebase-query
app-name="my-app"
path="https://dinosaur-facts.firebaseio.com/dinosaurs"
data="{{dinosaurs}}"
>
</firebase-query>
<firebase-document
app-name="my-app"
path="https://dinosaur-facts.firebaseio.com/dinosaurs/triceratops"
data="{{triceratops}}"
>
</firebase-document>
[[triceratops.order]]
<br /><br />
<template is="dom-repeat" items="[[dinosaurs]]">
[[item.order]]
</template>
<template is="dom-repeat" items="[[test]]">
[[item]]
</template>
<!---->
</template>
<script>
(function(){
Polymer({
is: "x-element",
properties: {
dinosaurs: Array,
test: {
value: function() {
return ['foo', 'bar', 'baz'];
}
},
},
_onTap: function() {
console.log('You clicked me!');
console.log('triceratops', JSON.stringify(this.triceratops));
}
});
})();
</script>
</dom-module>
<x-element></x-element>
</body>
You first need to include <firebase-app>
to initialize firebase.
<firebase-app
database-url="dinos-89701.firebaseio.com"
api-key="AIzaSyDLkCy3RNC5uFomEjVsLUehpzKFDrfAplU"
auth-domain="dinos-89701.firebaseio.com">
</firebase-app>
Get your api-key here:
https://console.firebase.google.com/project/YOUR_PROJECT/settings/general/