Can't return scalar values from RPC services

[edipoReboucas]

Today I try return a integer from my rpc service and apigility return a html page without a error.

I see that top level parser is different from deep level parser, for example:

this code
return array(array(1));
return this json
{"0":[1]}

Maybe the problem has something relative to this, sometime that top leve parser try convert everthing to a object.

[TomHAnderson]

use ZF\ContentNegotiation\ViewModel;

return new ViewModel([0 => 1]);

[edipoReboucas]

This return a object, not a array like expected.
this code
return new \ZF\ContentNegotiation\ViewModel(array(0 => 1))

return this json
{"0":1}

I expected this
[1]

Using a integer:

return new \ZF\ContentNegotiation\ViewModel(1)

I receive this error:

... "detail":"Zend\\View\\Model\\ViewModel::setVariables: expects an array, or Traversable argument; received \"integer\""}

This is the projected behavior?

[TomHAnderson]

The error is correct. If your calling process needs a scalar value and cannot process the json you could, and I'm not recommending you do this, put a die(1); at the end of your procedure.

[edipoReboucas]

I guess that a better behavior is if the array is a hashmap use the current top level parser, in another cases use the deep level parser. Is very ugly the current behavior.

[edipoReboucas]

By now I using this solution to not break the flow of the framework.

return $this->getResponse()->setContent(Json::encode($result));

[weierophinney]

This repository has been closed and moved to laminas-api-tools/api-tools-rpc; a new issue has been opened at laminas-api-tools/api-tools-rpc#3.