API personalizada Caminho da API inválido

Então, segui este exemplo para criar API personalizada. Mas não tenho certeza se estou chamando de errado ou se meu código não está correto. Aqui está o que eu tenho.

Estrutura de pastas:

Mycompany
    Syncreports
      etc
        api.xml
        wsi.xml
        wsdl.xml
      Model
        Sync
          Api
            V2.php
          Api.php

/app/etc/modules/Mycompany_Syncreports.xml

<?xml version="1.0"?>
<config>
    <modules>
        <Mycompany_Syncreports>
            <active>true</active>
            <codePool>local</codePool>
    <depends>
                <Mage_Api />
            </depends>
        </Mycompany_Syncreports>
    </modules>
</config>

/app/code/local/Mycompany/Syncreports/etc/api.xml

<?xml version="1.0" encoding="UTF-8"?>
<config>
    <modules>
        <Mycompany_Syncreports>
          <version>1.0.0</version>
        </Mycompany_Syncreports>
    </modules>
  <api>
      <resources>
        <syncreports_sync translate="title" module="mycompany_syncreports">
            <title>Synchronization API</title>
            <model>syncreports/sync_api</model>
            <acl>syncreports/sync</acl>
            <methods>
                <info translate="title" module="mycompany_syncreports">
                    <title>Retrieve synchronization info</title>
                    <acl>syncreports/sync/info</acl>
                    <method>info</method>
                </info>
            </methods>
            <faults module="mycompany_syncreports">
                <project_not_exists>
                    <code>101</code>
                    <message>Requested project does not exist.</message>
                </project_not_exists>
                <invalid_data>
                    <code>102</code>
                    <message>Provided data is invalid.</message>
                </invalid_data>
                <save_error>
                    <code>103</code>
                    <message>Error while saving project. Details in error message.</message>
                </save_error>
                <remove_error>
                    <code>104</code>
                    <message>Error while removing project. Details in error message.</message>
                </remove_error>
            </faults>
        </syncreports_sync>
    </resources>
    <resources_alias>
        <sync>syncreports_sync</sync>
    </resources_alias>
    <v2>
        <resources_function_prefix>
            <sync>syncreportsSync</sync>
        </resources_function_prefix>
    </v2>
    <acl>
        <resources>
            <syncreports translate="title" module="mycompany_syncreports">
                <title>SyncReports</title>
                <sync translate="title" module="mycompany_syncreports">
                    <title>Synchronization</title>
                    <sort_order>110</sort_order>
                    <info translate="title" module="mycompany_syncreports">
                        <title>Info</title>
                    </info>
                </sync>
            </syncreports>
        </resources>
    </acl>
  </api>
</config>

/app/code/local/Mycompany/Syncreports/etc/wsi.xml

<?xml version="1.0" encoding="UTF-8"?>
<wsdl:definitions xmlns:typens="urn:{{var wsdl.name}}"
 xmlns:xsd="http://www.w3.org/2001/XMLSchema"
 xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/"
 xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/"
 xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/"
 name="{{var wsdl.name}}"
 targetNamespace="urn:{{var wsdl.name}}">
<wsdl:types>
    <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema" targetNamespace="urn:{{var wsdl.name}}">
        <xsd:complexType name="syncreportsSyncInfoEntity">
            <xsd:sequence>
                <xsd:element name="entity_id" type="xsd:string" />
                <xsd:element name="name" type="xsd:string" />
                <xsd:element name="description" type="xsd:string" />
                <xsd:element name="status" type="xsd:string" />
                <xsd:element name="created_at" type="xsd:string" />
                <xsd:element name="updated_at" type="xsd:string" />
            </xsd:sequence>
        </xsd:complexType>
        <xsd:element name="syncreportsSyncInfoRequestParam">
            <xsd:complexType>
                <xsd:sequence>
                    <xsd:element minOccurs="1" maxOccurs="1" name="sessionId" type="xsd:string" />
                    <xsd:element minOccurs="1" maxOccurs="1" name="projectId" type="xsd:string" />
                </xsd:sequence>
             </xsd:complexType>
        </xsd:element>
        <xsd:element name="syncreportsSyncInfoResponseParam">
            <xsd:complexType>
                <xsd:sequence>
                    <xsd:element minOccurs="1" maxOccurs="1" name="result" type="typens:portfolioProjectInfoEntity" />
                </xsd:sequence>
             </xsd:complexType>
        </xsd:element>
    </xsd:schema>
</wsdl:types>
<wsdl:message name="syncreportsSyncInfoRequest">
    <wsdl:part name="parameters" element="typens:syncreportsSyncInfoRequestParam" />
</wsdl:message>
<wsdl:message name="syncreportsSyncInfoResponse">
    <wsdl:part name="parameters" element="typens:syncreportsSyncInfoResponseParam" />
</wsdl:message>
<wsdl:portType name="{{var wsdl.handler}}PortType">
    <wsdl:operation name="syncreportsSyncInfo">
        <wsdl:documentation>Retrieve project info</wsdl:documentation>
        <wsdl:input message="typens:syncreportsSyncInfoRequest" />
        <wsdl:output message="typens:syncreportsSyncInfoResponse" />
    </wsdl:operation>

</wsdl:portType>
<wsdl:binding name="{{var wsdl.handler}}Binding" type="typens:{{var wsdl.handler}}PortType">
    <soap:binding style="document" transport="http://schemas.xmlsoap.org/soap/http" />
    <wsdl:operation name="syncreportsSyncInfo">
        <soap:operation soapAction="" />
        <wsdl:input>
            <soap:body use="literal" />
        </wsdl:input>
        <wsdl:output>
            <soap:body use="literal" />
        </wsdl:output>
    </wsdl:operation>
</wsdl:binding>
<wsdl:service name="{{var wsdl.name}}Service">
    <wsdl:port name="{{var wsdl.handler}}Port" binding="typens:{{var wsdl.handler}}Binding">
        <soap:address location="{{var wsdl.url}}" />
    </wsdl:port>
  </wsdl:service>
</wsdl:definitions>

/app/code/local/Mycompany/Syncreports/etc/wsdl.xml

<?xml version="1.0" encoding="UTF-8"?>
<definitions xmlns:typens="urn:{{var wsdl.name}}" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/"
xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" xmlns="http://schemas.xmlsoap.org/wsdl/"
name="{{var wsdl.name}}" targetNamespace="urn:{{var wsdl.name}}">
<types>
    <schema xmlns="http://www.w3.org/2001/XMLSchema" targetNamespace="urn:Magento">
        <import namespace="http://schemas.xmlsoap.org/soap/encoding/" schemaLocation="http://schemas.xmlsoap.org/soap/encoding/" />
        <complexType name="syncreportsSyncInfoEntity"><!-- define type for retrieve info -->
            <all>
                <element name="entity_id" type="xsd:string" minOccurs="1" />
                <element name="name" type="xsd:string" minOccurs="1" />
                <element name="description" type="xsd:string" minOccurs="0" />
                <element name="status" type="xsd:string" minOccurs="0" />

                <element name="created_at" type="xsd:string" minOccurs="1" />
                <element name="updated_at" type="xsd:string" minOccurs="1" />
            </all>
        </complexType>
    </schema>
</types>
<message name="syncreportsSyncInfoRequest">
    <part name="sessionId" type="xsd:string" />
    <part name="projectId" type="xsd:string" />
</message>
<message name="syncreportsSyncInfoResponse">
    <part name="result" type="typens:syncreportsSyncInfoEntity" />
</message>
<portType name="{{var wsdl.handler}}PortType">
    <operation name="syncreportsSyncInfo">
        <documentation>Retrieve project info</documentation>
        <input message="typens:syncreportsSyncInfoRequest" />
        <output message="typens:syncreportsSyncInfoResponse" />
    </operation>
</portType>
<binding name="{{var wsdl.handler}}Binding" type="typens:{{var wsdl.handler}}PortType">
    <soap:binding style="rpc" transport="http://schemas.xmlsoap.org/soap/http" />
    <operation name="syncreportsSyncInfo">
        <soap:operation soapAction="urn:{{var wsdl.handler}}Action" />
        <input>
            <soap:body namespace="urn:{{var wsdl.name}}" use="encoded" encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" />
        </input>
        <output>
            <soap:body namespace="urn:{{var wsdl.name}}" use="encoded" encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" />
        </output>
    </operation>
</binding>
<service name="{{var wsdl.name}}Service">
    <port name="{{var wsdl.handler}}Port" binding="typens:{{var wsdl.handler}}Binding">
        <soap:address location="{{var wsdl.url}}" />
    </port>
  </service>
</definitions>

/app/code/local/Mycompany/Syncreports/Model/Sync/Api.php

<?php
  class Mycompany_Syncreports_Model_Sync_Api extends Mage_Api_Model_Resource_Abstract
  {
      public function info($projectId){
    return "This is the message: ".$projectId;
      }
}

/app/code/local/Mycompany/Syncreports/Model/Sync/Api/V2.php

<?php
class Mycompany_Syncreports_Model_Sync_Api_V2 extends Mycompany_Syncreports_Model_Sync_Api{

  public function info($projectId){
    return "This is the message: ".$projectId;
  }
}

E é assim que estou chamando minha API:

<?php
$host = "127.0.0.1/magento/index.php";
$client = new SoapClient("http://".$host. "/api/soap/?wsdl");
$apiuser= "user";
$apikey = "123456";
$action = "syncreports.info";

try { 
    $session_id= $client->login($apiuser, $apikey);
$result = array();

$result= $client->call($session_id, $action, array("test"));
    var_dump($result);
}
catch (Exception $e){
    echo var_dump($e);
    throw $e;
}
?>

Usando este coad, estou recebendo erro: Erro fatal: exceção não detectada do SoapFault: [3] caminho de API inválido

Alguma idéia de como eu deveria resolver isso?

/app/code/local/Mycompany/Syncreports/etc/config.xml

<?xml version="1.0" ?>
<config>
  <modules>
    <Mycompany_Syncreports>
        <version>1.0.0</version>
    </Mycompany_Syncreports>
</modules>
<global>
    <helpers>
        <mycompany_syncreports>
            <class>Mycompany_Syncreports_Helper</class>
        </mycompany_syncreports>
    </helpers>
</global>   
<admin>
    <routers>
        <adminhtml>
            <args>
                <modules>
                    <foo_bar before="Mage_Adminhtml">Mycompany_Syncreports_Adminhtml</foo_bar>
                </modules>
            </args>
        </adminhtml>
    </routers>
</admin>

<frontend>
    <routers>
        <syncreports>
            <use>standard</use>
            <args>
                <module>Mycompany_Syncreports</module>
                <frontName>syncreports</frontName>
            </args>
        </syncreports>
    </routers>
</frontend>

<adminhtml>
    <layout>
        <updates>
            <syncreports>
                <file>mycompany/syncreports.xml</file>
            </syncreports>
        </updates>
    </layout>
</adminhtml>    
</config>

O nome da sua ação deve ser

$action = 'syncreports_sync.info';

Em geral, aqui está a aparência de um nome de método da API v1.

entity_alias.method
   |           |
   |           |------------the name of the method to call.Child of the `<methods>` tag in the `api.xml` file
   |  
   |--- the tag name you specified in `api.xml` inside the `<resources>` tag

[EDIT]
Seu outro problema é causado pelo fato de você não ter as declarações do modelo config.xml.
Adicione isso dentro da <global>tag

<models>
    <syncreports>
        <class>Mycompany_Syncreports_Model</class>
    </syncreports>
</models>

Se você deseja usar mycompany_syncreportscomo alias de modelo, da mesma forma que faz com os ajudantes, coloque esse xml em vez do acima

<models>
    <mycompany_syncreports>
        <class>Mycompany_Syncreports_Model</class>
    </mycompany_syncreports>
</models>

Mas, neste caso, você precisa modificar o seu api.xml.
Mude esta linha:

<model>syncreports/sync_api</model>

Para este

<model>mycompany_syncreports/sync_api</model>

Também estou tendo o mesmo problema (caminho de API inválido). Por favor, alguém sabe, deixe-me responder .. Aqui está o meu código O que eu fiz?

api.xml

<resources>

  <arb translate="title" module="mymodule">

    <title>Chiragdodia module</title>

    <model>mymodule/api</model>

    <methods>

      <storesList translate="title" module="mymodule">
        <title>Retrieve list of installed stores</title>
        <acl>arb/storesList</acl>
      </storesList>

    </methods>


  </arb>
</resources>
<acl>
  <resources>
    <arb translate="title" module="mymodule">
      <title>arb</title>
      <create translate="title" module="mymodule">
        <title>Create product</title>
      </create>

    </arb>
  </resources>
</acl>
  <v2>
  <resources_function_prefix>
    <arb>arb</arb>
  </resources_function_prefix>
</v2>

config.xml

1.1.65

<global>
    <helpers>
        <mymodule>
            <class>Chiragdodia_Mymodule_Helper</class>
        </mymodule>
    </helpers>
    <models>
        <catalog>
            <rewrite>
                <category_api>Chiragdodia_Mymodule_Model_Category_Api</category_api>
                <product_api>Chiragdodia_Mymodule_Model_Product_Api</product_api>
                <product_attribute_api>Chiragdodia_Mymodule_Model_Product_Attribute_Api</product_attribute_api>
                <product_attribute_media_api>Chiragdodia_Mymodule_Model_Product_Attribute_Media_Api</product_attribute_media_api>
                <product_link_api>Chiragdodia_Mymodule_Model_Product_Link_Api</product_link_api>
            </rewrite>
        </catalog>
        <core>
            <rewrite>
                <url>Chiragdodia_Mymodule_Model_Core_Url</url>
                <store>Chiragdodia_Mymodule_Model_Core_Store</store>
            </rewrite>
        </core>
        <mymodule>
            <class>Chiragdodia_Mymodule_Model</class>
        </mymodule> 
    </models>
</global>

resourcename não deve ser igual ao api.xml a seguir

<rescustomapi>é meu nome de recurso, enquanto customapi é meu nome de módulo. Pode ser que você tenha os dois nomes iguais.

<?xml version="1.0"?>
<config>
    <api>
        <resources>
            <rescustomapi translate="title" module="customapi">
                <model>customapi/helloworld_api</model>
                <title>Custom HelloWorld API</title>
                <methods>
                   <setddapi translate="title" module="customapi">
                        <title>Mydons HelloWorld API</title>
                   </setddapi>
                </methods>
                <faults module="customapi">
                    <data_invalid>
                        <code>100</code>
                        <message>Invalid data</message>
                    </data_invalid>
                </faults>
            </rescustomapi>
          </resources>
      </api>
</config>