44.14 MAKE_REST_REQUEST_B Function

Use this function to invoke a RESTful style Web service supplying either name value pairs, a character based payload or a binary payload and returning the response in a BLOB.

Syntax

APEX_WEB_SERVICE.MAKE_REST_REQUEST_B(
    p_url                  IN VARCHAR2,
    p_http_method          IN VARCHAR2,
    p_username             IN VARCHAR2 DEFAULT NULL,
    p_password             IN VARCHAR2 DEFAULT NULL,
    p_scheme               IN VARCHAR2 DEFAULT 'Basic',
    p_proxy_override       IN VARCHAR2 DEFAULT NULL,
    p_transfer_timeout     IN NUMBER   DEFAULT 180,
    p_body                 IN CLOB     DEFAULT EMPTY_CLOB(),
    p_body_blob            IN BLOB     DEFAULT EMPTY_BLOB(),
    p_parm_name            IN apex_application_global.VC_ARR2 DEFAULT empty_vc_arr,
    p_parm_value           IN apex_application_global.VC_ARR2 DEFAULT empty_vc_arr,
    p_wallet_path          IN VARCHAR2 DEFAULT NULL,
    p_wallet_pwd           IN VARCHAR2 DEFAULT NULL, 
    p_https_host           IN VARCHAR2 DEFAULT NULL, 
    p_credential_static_id IN VARCHAR2 DEFAULT NULL,
    p_token_url            IN VARCHAR2 DEFAULT NULL ) 
RETURN BLOB;

Parameters

Table 44-8 MAKE_REST_REQUEST_B Function Parameters

Parameter	Description
p_url	The URL endpoint of the Web service.
p_http_method	The HTTP method to use, PUT, POST, GET, HEAD, or DELETE.
p_username	The username if basic authentication is required for this service.
p_password	The password if basic authentication is required for this service
p_scheme	The authentication scheme, Basic (default) or AWS or Digest or OAUTH_CLIENT_CREDif supported by your database release.
p_proxy_override	The proxy to use for the request. The proxy supplied overrides the proxy defined in the application attributes.
p_transfer_timeout	The amount of time in seconds to wait for a response.
p_body	The HTTP payload to be sent as CLOB.
p_body_blob	The HTTP payload to be sent as binary BLOB. For example, posting a file.
p_parm_name	The name of the parameters to be used in name/value pairs.
p_parm_value	The value of the parameters to be used in name/value pairs.
p_wallet_path	The file system path to a wallet if the URL endpoint is https. For example, file:/usr/home/oracle/WALLETS. The wallet path provided overrides the wallet defined in the instance settings.
p_wallet_pwd	The password to access the wallet.
p_https_host	The host name to be matched against the common name (CN) of the remote server's certificate for an HTTPS request.
p_credential_static_id	The name of a Web Credential (configured in Shared Components) to be used.
p_token_url	For token-based authentication flows (like OAuth2): The URL where to get the token from.

Example

The following example calls a RESTful style Web service using the make_rest_request function passing the parameters to the service as name/value pairs. The response from the service is stored in a locally declared BLOB.

declare
    l_blob 	BLOB;
BEGIN
 
    l_blob := apex_web_service.make_rest_request_b(
        p_url => 'http://us.music.yahooapis.com/ video/v1/list/published/popular',
        p_http_method => 'GET',
        p_parm_name => apex_util.string_to_table('appid:format'),
        p_parm_value => apex_util.string_to_table('xyz:xml'));
 
END;