在聚合物中是否可以将从铁质ajax获取的数据存储在阵列中？

Question

in my way I ask for a REST-API and I get back a json-array. What can I do to store the data in an array? Is it possible to push the data in an array by using the "responseHandler"-function by on-response?

Here's my code:

<dom-module id="rest-api">
<template>      
    <iron-ajax 
        auto
        url="http://localhost:8080/cockpit/clients"
        handle-as="json"
        on-response="responseHandler" 
        last-response="{{response}}"
    ></iron-ajax>
        <table>
            <tr>
                <th>Client-ID</th>
                <th>Status</th>
            </tr>
            <template is="dom-repeat" items="{{response}}">
                <tr>
                    <td>{{item.id}}</td>
                    <td>{{item.status}}</td>
                </tr>
            </template>
        </table>
</template>
</dom-module>
<script>
  Polymer({
    is: 'rest-api',
    properties: {

    },
    responseHandler: function(e, request) {
        console.log("responseHandler fired!");
        // Can I do anything here?
    }
  });
</script>

Thanks for help!

Answer 1

Yes, you can. For this you need to add some code to your responseHandler func. You get all your data in items and then can store it in place were you need:

var items = e.detail.response;
for (var i=0; i<items.length; i++) {
//store your data
}

Answer 2

It depends what your response type is handled as but the typical use of json ends up going in event.detail.response. There are also other parameters that are returned like the original request sent from iron-request. The event is the first parameter.

From the polymer catalog on handleAs Specifies what data to store in the response property, and to deliver as event.detail.response in response events.

One of:

text: uses XHR.responseText.

xml: uses XHR.responseXML.

json: uses XHR.responseText parsed as JSON.

arraybuffer: uses XHR.response.

blob: uses XHR.response.

document: uses XHR.response.