Polymer 1.0 Iron-Ajax
Question
I am trying to get data via a php script that works in Polymer 0.5. I just get null response and no errors in Polymer 1.0, below is the code. I have tried modifying the PHP to echo anything but I get no response. hresponse does fire but at that point only the request information is in ajax the response information is null. I cannot find an example to see where I have gone wrong. Thanks
<iron-ajax
id="ajax"
url=""
params=""
handle-as="json"
on-response="hresponse"
debounce-duration="300">
</iron-ajax>
and the script
setajax: function(){
this.$.ajax.url = "Scripts/getnotes.php";
this.$.ajax.params='{"SN":"VBA056"}';
this.$.ajax.generateRequest();
}
hresponse: function(e) {
console.log(e.detail.response);
console.log(this.$.ajax.lastResponse);
}
2 answers
solution1
25 2015-06-01 19:59:18
When you add the this.$.ajax.params= inside the script, it should be an object. When you look into the place inside iron-ajax.html where the request is generated, you will see why this is the case. You are currently adding it as a String. Try to set the line to this.$.ajax.params={"SN":"VBA056"} and it should work.
The following example works (assuming you are importing all the required elements):
<body>
<my-app></my-app>
<dom-module id="my-app">
<style>
</style>
<template>
<iron-ajax
id="ajax"
url=""
handle-as="json"
on-response="hresponse"
debounce-duration="300">
</iron-ajax>
<button on-click="setajax">Click me</button>
</template>
<script>
Polymer({
is: "my-app",
setajax: function () {
this.$.ajax.url = "http://jsonplaceholder.typicode.com/posts";
this.$.ajax.params = {"userId":"1"};
this.$.ajax.generateRequest();
},
hresponse: function(request) {
console.log(request.detail.response);
console.log(this.$.ajax.lastResponse);
}
});
</script>
</dom-module>
</body>
solution2
0 2015-06-01 17:09:04
My 1st time answering and a newbie to programming, so it is not perfectly correct. But it can help you
There is no property as on-response as per documentation provided in https://elements.polymer-project.org/elements/iron-ajax
Your iron-ajax has to be modified, i too am a newbie, so i wonder if it works, but worth a try.
<iron-ajax
auto
url=""
params=""
handleAs="json"
lastResponse="hresponse"
method='GET'>
</iron-ajax>
Also i wonder if your scripts work like that.
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