Json output (strategy?)

[Marko78]

Hi,

I'm creating an app, which outputs json but I'm not very successful with it.

In my module.php I have tried to register JsonStrategy, but the examples
I have found seems to have old code...

Does anyone have updated example on this subject?
I'm using the latest RC.

br, Marko

[Jurian Sluiman-3]

2012/8/10 Marko78 <[hidden email]>

> Hi,
>
> I'm creating an app, which outputs json but I'm not very successful with
> it.
>
> In my module.php I have tried to register JsonStrategy, but the examples
> I have found seems to have old code...
>
> Does anyone have updated example on this subject?
> I'm using the latest RC.
>
> br, Marko
>

Recently I tried this out too. I have blogged about my findings, which you
can read here:
http://juriansluiman.nl/en/article/119/attach-a-view-strategy-for-specific-modules

Hope that helps.
--
Jurian Sluiman

[Marko78]

Thanks, it helped one step further. =)

Now is still tries to render stuff with PhpRenderer:

'Zend\View\Renderer\PhpRenderer::render: Unable to render template "application/user/index"'

br, Marko

[Marko78]

hmm, when i test the controller with curl:

curl -H 'Accept: application/json' http://mydomain/user/1

I get following:

{"content":{"content":"Placeholder page"}}

Where is this coming from?

br, Marko

[Jurian Sluiman-3]

2012/8/10 Marko78 <[hidden email]>

> hmm, when i test the controller with curl:
>
> curl -H 'Accept: application/json' http://mydomain/user/1
>
> I get following:
>
> {"content":{"content":"Placeholder page"}}
>
> Where is this coming from?
>
> br, Marko
>

Marko,

This is the the intended behaviour from the JSON strategy. You should read
the manual about alternative rendering strategies. Check this link under
the section "Creating and Registering Alternate Rendering and Response
Strategies":
http://zf2.readthedocs.org/en/latest/modules/zend.view.quick-start.html

The JSON strategy basically returns JSON when you

   1. Return a Zend\View\Model\ViewModel in your controller and have a
   request which contains an accept header with application/json
   2. Explicitly return a Zend\View\Model\JsonModel

If you want to return JSON without looking at the accept http header, you
should return a JsonModel instead of a ViewModel.
--
Jurian Sluiman

[Marko78]

Hi,

is it possible to make whole application output json?
so i would not need to do this in every module.

br, Marko

[Jurian Sluiman-3]

2012/8/10 Marko78 <[hidden email]>

> Hi,
>
> is it possible to make whole application output json?
> so i would not need to do this in every module.
>
> br, Marko
>

Rob Allen has also an excellent article:
http://akrabat.com/zend-framework-2/returning-json-from-a-zf2-controller-action/
--
Jurian Sluiman

[Marko78]

Cool,

with that link and with this:
http://jacekonthings.blogspot.fi/2012/05/how-to-create-restful-api-in-zend.html

I was able to get it working =)

br, Marko

[weierophinney]

-- Marko78 <[hidden email]> wrote
(on Friday, 10 August 2012, 01:45 AM -0700):
> is it possible to make whole application output json?
> so i would not need to do this in every module.

JSON all the time, or under certain conditions? You can definitely
register the JsonStrategy at the application level so that it can be
utilized by any module -- but the rules as noted in previous emails in
this thread still apply: it will only trigger if the Accept header
indicates an application/json content-type is allowed, or if you return
a JsonModel from your actions.

If you want JSON _all_ the time -- as in, no HTML, ever, you would need
to create a view listener that returns the JsonRenderer in all cases --
look at the PhpRendererStrategy as an example.

--
Matthew Weier O'Phinney
Project Lead            | [hidden email]
Zend Framework          | http://framework.zend.com/
PGP key: http://framework.zend.com/zf-matthew-pgp-key.asc

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