REST-service: data-mapping - json array

[HappyFive]

I use a REST-service to read a JSON from an url.
The JSON contains a huge array containing 250 objects.
How can i get this whole array ?

In this data-mapping screen i can map the array to a local-storage variable or directy to a javascript.
The local-storage variable doesn ́t work because it can only store strings, is that correct ?
But when i map the array to a JavaScript my application crashes (the handy-screen turns black). Even if the javascript is doing nothing else than write the values to the console.
I realized that the javascript is called 250 times, one time for each element in the array, maybe there is a better way of reading this array ??

Thx a lot for help !

[maxkatz]

You can use JSON.stringify() to convert JavaScript object to JSON string.

http://www.json.org/js.html

Instead of mapping, you can run JavaScript on service's success event, get the data and save it into local storage.

http://help.tiggzi.com/documentation/...

[Joseph Yeung]

Hi, Max.

I was trying to do the JavaScript referred in the above, but the link doesn't seem to work anymore.

Could somebody point to the renewed documentation, please?

[maxkatz]

http://docs.tiggzi.com/documentation/...

[Joseph Yeung]

Big thanks, Max.

My question is how can I (1) store the JSON file (returned by REST service) into the storage, and (2) show only the first JSON object (3) and wait until a 'next' button is pressed and then show the second JSON object.

Sorry for requiring such detailed instruction, but I've spent some time fumbling my way yet without results.

Thanks!

[Joseph Yeung]

Sorry.

My bad. There was a typo in the documentation example and I just copied it!

[Joseph Yeung]

Hi, Max.

Now that I have saved a copy of the JSON file (returned by the REST service of Tiggzi Database) in the local storage.

How could I show the objects (rows) one by one from the local storage?

[Kateryna Grynko]

Hello Joseph,

You save Rest Service data to localStorage variable. To use this data run following code:
codevar response = JSON.parse(localStorage.getItem("json_response"));/code
Array of rows will be saved in "response" variable. You'll be able to handle rows using JavaScript code.

[Joseph Yeung]

Hi! Katya.

Thanks for replying. Should I also do something like the following?

for (var i=0, l=localStorage.length; i<l; i++){
var key = localStorage.key(i);
var value = localStorage[key];
}

[Kateryna Grynko]

codefor (var i=0, l=response&#46;length; i<l; i++)
{
var row = response;
&#47;&#47;Now row contains single object from database collection
alert(row&#46;key1);
}/code
"key1" must be replaced with collection column name