Invoking RESTful Web Service using APEX_WEB_SERVICE.MAKE_REST_REQUEST

Hello All,
APEX Version: 4.0.2.00.07
DB: Oracle 11G R2
WebServer: EPG
Wallet info has been configured at APEX Instance Level, so APEX can access SSL enabled sites.
When I run following code in page process, to make SOAP request to our intranet JIRA instance, everything just works fine.
DECLARE
     l_envelope CLOB;
     l_xml XMLTYPE;
     lv_faultcode VARCHAR2(4000);
     lv_faultstring VARCHAR2(4000);     
BEGIN
     l_envelope := '<?xml version="1.0" encoding="UTF-8"?>'
  ||'<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:m0="http://beans.soap.rpc.jira.atlassian.com">'
  ||'<SOAP-ENV:Body>'
  ||'  <m:getIssuesFromFilterWithLimit xmlns:m="http://soap.rpc.jira.atlassian.com" SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">'
  ||'            <in0>'||:F_JIRA_TOKEN||'</in0>'
  ||'         <in1>'||HTF.escape_sc(:P4_IN1)||'</in1>'
  ||'         <in2>'||HTF.escape_sc(:P4_IN2)||'</in2>'
  ||'         <in3>'||HTF.escape_sc(:P4_IN3)||'</in3>'     
  ||'  </m:getIssuesFromFilterWithLimit>'
  ||'  </SOAP-ENV:Body>'
     ||'</SOAP-ENV:Envelope>';
     l_xml := APEX_WEB_SERVICE.MAKE_REQUEST(
                              p_url => 'https://jira.xyz.com/tracker/rpc/soap/jirasoapservice-v2',
                              p_action => 'https://jira.xyz.com/tracker/rpc/soap/jirasoapservice-v2/getIssuesFromFilterWithLimit',
                              p_envelope => l_envelope
END;However If i'm calling a RESTful webserivce using "apex_web_service" API then I always end-up with following error message.
The webservice was unreachable because either the URL you supplied was invalid, your environment requires a valid proxy server address for HTTP requests, or a wallet needs to be configured for HTTPS requests.Code (RESTful call)
DECLARE
     lc_response CLOB;
BEGIN     
     apex_web_service.g_request_headers(1).name := 'Authorization';
     apex_web_service.g_request_headers(1).value := 'Basic '||:F_JIRA_TOKEN_REST;
     lc_response:= APEX_WEB_SERVICE.MAKE_REST_REQUEST(
                                                                 p_url => 'https://jira.xyz.com/tracker/rest/api/2.0.alpha1/search?jql=assignee=John&startAt=1&maxResults=5',
                                                                 p_http_method => 'GET'
END;As you can see, both requests are made to same server. However during SOAP request I'm not getting any error, but during RESTful request I'm getting error. Can anyone tell me what could be wrong?
Best Regards,
Hari

Hi Hari,
this was bug 16212066 - apex_web_service make_rest_request doesn't use instance wallet if not specified
which will be fixed in APEX 4.2.2.
As a workaround you can specify the p_wallet_path and p_wallet_pwd parameter when calling apex_web_service.make_rest_request.
Regards
Patrick
My Blog: http://www.inside-oracle-apex.com
APEX Plug-Ins: http://apex.oracle.com/plugins
Twitter: http://www.twitter.com/patrickwolf

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    Connecting to the database cpdev.
    1
    2
    3
    4
    5
    5.5
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    <xs:element name="id" type="xs:string"/>
    <xs:element name="externalId" type="xs:string"/>
    <xs:element name="revision" type="xs:long"/>
    <xs:element name="platformDateCreated" type="xs:dateTime"/>
    <xs:element name="platformDateUpdated" type="xs:dateTime"/>
    <xs:element name="objectName" type="xs:string"/>
    <xs:element maxOccurs="unbounded" name="extendedAttributes" type="tns:ExtendedAttribute"/>
    </xs:sequence>
    </xs:complexType>

    <xs:complexType name="Location">

    <xs:sequence>
    <xs:element minOccurs="0" name="name" type="xs:string"/>
    <xs:element minOccurs="0" name="description" type="xs:string"/>
    <xs:element minOccurs="0" name="type" type="xs:string"/>
    <xs:element minOccurs="0" name="address" type="tns:Address"/>
    <xs:element minOccurs="0" name="position" type="tns:Position"/>
    <xs:element minOccurs="0" name="geofenceId" type="xs:long"/>
    <xs:element minOccurs="0" name="capcity" type="xs:int"/>
    <xs:element minOccurs="0" name="contact" type="xs:string"/>
    <xs:element minOccurs="0" name="email" type="xs:string"/>
    </xs:sequence>
    </xs:complexType>

    <xs:complexType name="Address">

    <xs:sequence>
    <xs:element minOccurs="0" name="addressLine" type="xs:string"/>
    <xs:element minOccurs="0" name="addressLine2" type="xs:string"/>
    <xs:element minOccurs="0" name="city" type="xs:string"/>
    <xs:element minOccurs="0" name="secondaryCity" type="xs:string"/>
    <xs:element minOccurs="0" name="subdivision" type="xs:string"/>
    <xs:element minOccurs="0" name="postalCode" type="xs:string"/>
    <xs:element minOccurs="0" name="country" type="xs:string"/>
    <xs:element minOccurs="0" name="phone" type="xs:string"/>
    <xs:element minOccurs="0" name="freeform" type="xs:string"/>
    </xs:sequence>
    </xs:complexType>

    <xs:complexType name="Position">

    <xs:sequence>
    <xs:element name="latitude" type="xs:double"/>
    <xs:element name="longitude" type="xs:double"/>
    </xs:sequence>
    </xs:complexType>

    <xs:complexType name="ExtendedAttribute">

    <xs:sequence>
    <xs:element name="name" type="xs:string"/>
    <xs:element name="value" type="xs:anyType"/>
    </xs:sequence>
    </xs:complexType>

    <xs:complexType name="upsertTaskResponse">

    <xs:sequence>
    <xs:element minOccurs="0" name="task" type="tns:Task"/>
    </xs:sequence>
    </xs:complexType>

    <xs:complexType name="Exception">

    <xs:sequence>
    <xs:element minOccurs="0" name="message" type="xs:string"/>
    </xs:sequence>
    </xs:complexType>

    <xs:complexType name="listenForEvents">

    <xs:sequence>
    <xs:element minOccurs="0" name="listenParams" type="tns:ListenParams"/>
    </xs:sequence>
    </xs:complexType>

    <xs:complexType name="ListenParams">

    <xs:sequence>
    <xs:element name="queueName" type="xs:string"/>
    <xs:element name="resendLast" type="xs:boolean"/>
    </xs:sequence>
    </xs:complexType>

    <xs:complexType name="listenForEventsResponse">

    <xs:sequence>
    <xs:element maxOccurs="unbounded" minOccurs="0" name="events" type="tns:Event"/>
    </xs:sequence>
    </xs:complexType>

    <xs:complexType name="Event">

    <xs:sequence>
    <xs:element name="id" type="xs:string"/>
    </xs:sequence>
    </xs:complexType>

    <xs:complexType name="AuthenticationRequestEvent">

    <xs:complexContent>

    <xs:extension base="tns:RequestEvent">

    <xs:sequence>
    <xs:element name="username" type="xs:string"/>
    <xs:element minOccurs="0" name="password" type="xs:string"/>
    </xs:sequence>
    </xs:extension>
    </xs:complexContent>
    </xs:complexType>

    <xs:complexType name="RequestEvent">

    <xs:complexContent>

    <xs:extension base="tns:Event">

    <xs:sequence>
    <xs:element name="correlationId" type="xs:string"/>
    <xs:element name="response" type="tns:Response"/>
    </xs:sequence>
    </xs:extension>
    </xs:complexContent>
    </xs:complexType>

    <xs:complexType name="Response">

    <xs:sequence>
    <xs:element name="correlationId" type="xs:string"/>
    </xs:sequence>
    </xs:complexType>

    <xs:complexType name="AuthenticationResponse">

    <xs:complexContent>

    <xs:extension base="tns:Response">

    <xs:sequence>
    <xs:element name="success" type="xs:boolean"/>
    <xs:element name="username" type="xs:string"/>
    <xs:element minOccurs="0" name="password" type="xs:string"/>
    <xs:element minOccurs="0" name="firstName" type="xs:string"/>
    <xs:element minOccurs="0" name="lastName" type="xs:string"/>
    <xs:element minOccurs="0" name="email" type="xs:string"/>
    <xs:element minOccurs="0" name="active" type="xs:boolean"/>
    <xs:element minOccurs="0" name="timeZone" type="xs:string"/>
    <xs:element minOccurs="0" name="group" type="xs:string"/>
    <xs:element minOccurs="0" name="role" type="xs:string"/>
    <xs:element minOccurs="0" name="errorCode" type="xs:string"/>
    <xs:element minOccurs="0" name="errorMessage" type="xs:string"/>
    </xs:sequence>
    </xs:extension>
    </xs:complexContent>
    </xs:complexType>

    <xs:complexType name="DispatchEvent">

    <xs:complexContent>

    <xs:extension base="tns:Event">

    <xs:sequence>
    <xs:element name="type" type="tns:eventType"/>
    <xs:element minOccurs="0" name="previousTask" type="tns:Task"/>
    <xs:element name="changeTask" type="tns:Task"/>
    <xs:element minOccurs="0" name="newTask" type="tns:Task"/>
    </xs:sequence>
    </xs:extension>
    </xs:complexContent>
    </xs:complexType>

    <xs:complexType name="sendAuthenticationResponse">

    <xs:sequence>
    <xs:element minOccurs="0" name="authenticationResponse" type="tns:AuthenticationResponse"/>
    </xs:sequence>
    </xs:complexType>

    <xs:complexType name="sendAuthenticationResponseResponse">
    <xs:sequence/>
    </xs:complexType>

    <xs:simpleType name="status">

    <xs:restriction base="xs:string">
    <xs:enumeration value="NULL"/>
    <xs:enumeration value="UNASSIGNED"/>
    <xs:enumeration value="ASSIGNED"/>
    <xs:enumeration value="RECEIVED"/>
    <xs:enumeration value="ACCEPTED"/>
    <xs:enumeration value="REJECTED"/>
    <xs:enumeration value="IN_PROGRESS"/>
    <xs:enumeration value="POSTPONED"/>
    <xs:enumeration value="COMPLETED"/>
    <xs:enumeration value="CANCELED"/>
    <xs:enumeration value="CLEARED"/>
    <xs:enumeration value="EXPIRED"/>
    </xs:restriction>
    </xs:simpleType>

    <xs:simpleType name="source">

    <xs:restriction base="xs:string">
    <xs:enumeration value="NULL"/>
    <xs:enumeration value="DISPATCH"/>
    <xs:enumeration value="SYSTEM"/>
    <xs:enumeration value="ENDUSER"/>
    </xs:restriction>
    </xs:simpleType>

    <xs:simpleType name="eventType">

    <xs:restriction base="xs:string">
    <xs:enumeration value="TaskCreated"/>
    <xs:enumeration value="TaskUpdated"/>
    <xs:enumeration value="TaskAssigned"/>
    <xs:enumeration value="TaskDeleted"/>
    <xs:enumeration value="TaskStatusChanged"/>
    <xs:enumeration value="TaskConflicted"/>
    </xs:restriction>
    </xs:simpleType>
    </xs:schema>
    </types>

    <message name="Webservice_listenForEvents">
    <part element="tns:listenForEvents" name="listenForEvents"/>
    </message>

    <message name="Webservice_sendAuthenticationResponseResponse">
    <part element="tns:sendAuthenticationResponseResponse" name="sendAuthenticationResponseResponse"/>
    </message>

    <message name="Webservice_sendAuthenticationResponse">
    <part element="tns:sendAuthenticationResponse" name="sendAuthenticationResponse"/>
    </message>

    <message name="Webservice_upsertTaskResponse">
    <part element="tns:upsertTaskResponse" name="upsertTaskResponse"/>
    </message>

    <message name="Exception">
    <part element="tns:Exception" name="Exception"/>
    </message>

    <message name="Webservice_upsertTask">
    <part element="tns:upsertTask" name="upsertTask"/>
    </message>

    <message name="Webservice_listenForEventsResponse">
    <part element="tns:listenForEventsResponse" name="listenForEventsResponse"/>
    </message>

    <portType name="Webservice">

    <operation name="listenForEvents" parameterOrder="listenForEvents">
    <input message="tns:Webservice_listenForEvents"/>
    <output message="tns:Webservice_listenForEventsResponse"/>
    <fault message="tns:Exception" name="Exception"/>
    </operation>

    <operation name="sendAuthenticationResponse" parameterOrder="sendAuthenticationResponse">
    <input message="tns:Webservice_sendAuthenticationResponse"/>
    <output message="tns:Webservice_sendAuthenticationResponseResponse"/>
    <fault message="tns:Exception" name="Exception"/>
    </operation>

    <operation name="upsertTask" parameterOrder="upsertTask">
    <input message="tns:Webservice_upsertTask"/>
    <output message="tns:Webservice_upsertTaskResponse"/>
    <fault message="tns:Exception" name="Exception"/>
    </operation>
    </portType>

    <binding name="WebserviceBinding" type="tns:Webservice">
    <soap:binding style="document" transport="http://schemas.xmlsoap.org/soap/http"/>

    <operation name="listenForEvents">
    <soap:operation soapAction=""/>

    <input>
    <soap:body use="literal"/>
    </input>

    <output>
    <soap:body use="literal"/>
    </output>

    <fault name="Exception">
    <soap:fault name="Exception" use="literal"/>
    </fault>
    </operation>

    <operation name="sendAuthenticationResponse">
    <soap:operation soapAction=""/>

    <input>
    <soap:body use="literal"/>
    </input>

    <output>
    <soap:body use="literal"/>
    </output>

    <fault name="Exception">
    <soap:fault name="Exception" use="literal"/>
    </fault>
    </operation>

    <operation name="upsertTask">
    <soap:operation soapAction=""/>

    <input>
    <soap:body use="literal"/>
    </input>

    <output>
    <soap:body use="literal"/>
    </output>

    <fault name="Exception">
    <soap:fault name="Exception" use="literal"/>
    </fault>
    </operation>
    </binding>

    <service name="Webservice">

    <port binding="tns:WebserviceBinding" name="WebservicePort">
    <soap:address location="https://webservice.mp.b.airclic.com:443/webservice/product/fieldservice/v1/Webservice"/>
    </port>
    </service>
    </definitions>
    Following is the pl/sql code using UTL_DBWS
    DECLARE
    l_service UTL_DBWS.service;
    l_call UTL_DBWS.call;
    l_wsdl_url VARCHAR2(32767);
    l_namespace VARCHAR2(32767);
    l_service_qname UTL_DBWS.qname;
    l_port_qname UTL_DBWS.qname;
    l_operation_qname UTL_DBWS.qname;
    l_input_params UTL_DBWS.anydata_list;
    soap_request xmltype;
    l_result xmltype;
    result_output VARCHAR2(32767);
    BEGIN
    l_wsdl_url := 'https://webservice.mp.b.airclic.com/webservice/product/fieldservice/v1/Webservice?WSDL';
    l_namespace := 'http://webservice.airclic.com/';
    dbms_output.put_line ('1');
    l_service_qname := UTL_DBWS.to_qname(l_namespace, 'Webservice');
    dbms_output.put_line ('2');
    l_port_qname := UTL_DBWS.to_qname(l_namespace, 'WebservicePort');
    dbms_output.put_line ('3');
    l_operation_qname := UTL_DBWS.to_qname(l_namespace, 'sendAuthenticationResponse');
    dbms_output.put_line ('4');
    l_service := UTL_DBWS.create_service (
    wsdl_document_location => URIFACTORY.getURI(l_wsdl_url),
    service_name => l_service_qname);
    dbms_output.put_line ('5');
    l_call := UTL_DBWS.create_call (
    service_handle => l_service,
    port_name => l_port_qname,
    operation_name => l_operation_qname);
    dbms_output.put_line ('6');
    UTL_DBWS.SET_PROPERTY(l_call,'USERNAME',<username to access wsdl>);
    dbms_output.put_line ('7');
    UTL_DBWS.SET_PROPERTY(l_call,'PASSWORD',<password>);
    dbms_output.put_line ('8');
    utl_dbws.set_property(l_call,'OPERATION_STYLE', 'document');
    dbms_output.put_line ('9');
    soap_request := xmltype.createxml('<?xml version="1.0" encoding="UTF-8"?>
    <S:Envelope xmlns:S="http://schemas.xmlsoap.org/soap/envelope/">
    <S:Body>
    <ns2:sendAuthenticationResponse xmlns:ns2="http://webservice.airclic.com/">
    <authenticationResponse>
    <correlationId>4646735802698040711:[email protected]</correlationId>
    <success>true</success>
    <username>changlanih</username>
    <password>abcd1234</password>
    <firstName>hero</firstName>
    <lastName>changlani</lastName>
    <email>[email protected]</email>
    <active>true</active>
    <timeZone>eastern</timeZone>
    <group>Northeast</group>
    <role>Service Manager</role>
    </authenticationResponse>
    </ns2:sendAuthenticationResponse>
    </S:Body>
    </S:Envelope>');
    l_result := UTL_DBWS.invoke ( l_call,soap_request);
    UTL_DBWS.release_call (call_handle => l_call);
    UTL_DBWS.release_service (service_handle => l_service);
    result_output := l_result.getstringval;
    dbms_output.put_line('web svc output ===> ' || result_output);
    END;
    Following is the error from pl/sql code
    1
    2
    3
    4
    DECLARE
    ERROR at line 1:
    ORA-29532: Java call terminated by uncaught Java exception: java.lang.IllegalAccessException: error.build.wsdl.model: oracle.j2ee.ws.common.tools.api.WsdlValidationException:
    Failed to read WSDL from https://webservice.mp.b.airclic.com/webservice/product/fieldservice/v1/Webservice?WSDL:
    HTTP connection error code is 401
    ORA-06512: at "SYS.UTL_DBWS", line 193
    ORA-06512: at "SYS.UTL_DBWS", line 190
    ORA-06512: at line 20
    Notes
    The program fails at following line of code -
    l_service := UTL_DBWS.create_service (
    wsdl_document_location => URIFACTORY.getURI(l_wsdl_url),
    service_name => l_service_qname);
    Web services are SSL.
    The WSDL is at https location and needs username/password for access. The username/password to access WSDL are set using UTL_DBWS.SET_PROPERTY
    To access the SSL site, I have imported the CA in Oracle Wallet, JVM home and JDK home.
    Can anyone tell me what am I doing wrong here. I am not able to even establish connection to web service host.
    This is very frustrating - Oracle has no examples on how to access a SSL Web Service (that needs authentication) from Database.
    This is effecting our project deadlines ......... any help would be greatly appreciated.
    Thanks.

    Hi,
    I presume your Web Service needs HTTP (BASIC?) Authentication.
    All this needs is setting the following 2 properties, which as can be seen, you are setting....
    UTL_DBWS.set_property(l_call, 'USERNAME', '<username>');
    UTL_DBWS.set_property(l_call, 'PASSWORD', '<pwd>');
    This should work as long as your DBWS Callout Utility was downloaded from OTN after June 2008, and it's version is atleast 10.1.3.1.
    Following is a sample code snippet that was tested successfully for this :
    Declare
    l_service UTL_DBWS.service;
    l_call UTL_DBWS.call;
    l_result sys.XMLTYPE;
    l_request sys.XMLTYPE;
    BEGIN
    l_service := UTL_DBWS.create_service(null);
    l_call := UTL_DBWS.create_call(l_service);
    UTL_DBWS.set_target_endpoint_address(l_call, 'http://xxx.oracle.com:8888/basic/MyWebService1SoapHttpPort');
    UTL_DBWS.set_property(l_call, 'USERNAME', 'username');
    UTL_DBWS.set_property(l_call, 'PASSWORD', 'pwd');
    UTL_DBWS.set_property(l_call, 'OPERATION_STYLE', 'document');
    UTL_DBWS.set_property(l_call, 'SOAPACTION_USE', 'true');
    UTL_DBWS.set_property(l_call, 'SOAPACTION_URI', 'http://xxx.oracle.com:8888/basic/MyWebService1SoapHttpPort');
    l_request := XMLTYPE('<Z_CENTRICITY_GET_DOCLIST
    xmlns:urn="urn:sap-com:document:sap:rfc:functions">' ||
    '<I_INCLUDE_OLD_VERSIONS></I_INCLUDE_OLD_VERSIONS>' ||
    '<I_INSTITUTION>0001</I_INSTITUTION>' ||
    '<I_PATIENT_NR>0000000181</I_PATIENT_NR>' ||
    '</Z_CENTRICITY_GET_DOCLIST>');
    l_result := UTL_DBWS.invoke(l_call, l_request);
    UTL_DBWS.release_call (call_handle => l_call);
    UTL_DBWS.release_service (service_handle => l_service);
    EXCEPTION
    WHEN OTHERS THEN
    dbms_output.put_line(sqlcode || ' ' || sqlerrm);
    END;
    Hope this helps,
    Yogesh

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    Edited by: SantoshV Singh on Apr 29, 2013 10:09 PM

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    +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
    2 3 5                                             
    ERROR                                             
    6                                             
    Cache Accesss
    7                                             
    8                                             
    9 While trying to retrieve the URL: 10 http://IP ADDRESS :PORT /invoke/crm_sms/send_crm_sms?
    11
    12 The following error was encountered:
    13                              
    14
    15 16 Cache Access Denied. 17 18
    19
    20 21
    Sorry, you are not currently allowed to request: 22
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    25 26
    27 You need to use Netscape version 2.0 or greater, or Microsoft Internet 28 Explorer 3.0, or an HTTP/1.1 compliant browser for this to work. Please 29 contact the cache administrator if you have 30 difficulties authenticating yourself or
    31 change your default password.
    32                    
    33
    34                                             
    35                                             
    36 Generated Thu, 26 Jun 2008 11:18:54 GMT by ProxyServer.VakolaProxy (Squid/2.4.STABLE7) 37                                                                                
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    With Regards,
    Rajesh C

    slen = strlen( user ).
    call 'AB_RFC_X_SCRAMBLE_STRING'
      id 'SOURCE'      field user        id 'KEY'         field key
      id 'SCR'         field 'X'         id 'DESTINATION' field user
      id 'DSTLEN'      field slen.
    slen = strlen( password ).
    call 'AB_RFC_X_SCRAMBLE_STRING'
      id 'SOURCE'      field password    id 'KEY'         field key
      id 'SCR'         field 'X'         id 'DESTINATION' field password
      id 'DSTLEN'      field slen.

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    Edited by: 903915 on Dec 21, 2011 9:51 PM
    Edited by: 903915 on Dec 21, 2011 10:11 PM

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