Cloud Application Integration (On-Premises) : Administering CloudStreams : Virtual Services : Important Considerations for REST Virtual Services : Changing the HTTP Method of a REST Virtual Service : Implications of Changing HTTP Methods
Implications of Changing HTTP Methods
Note the following.
When changing from...
To...
Note that...
GET
POST
*The Content-Type of the changed request is sent as application/xml or application/json, and the charset is UTF-8.
*Depending on the structure of the native service, be aware that the native service might not be expecting the same payload structure that is being sent. In this case, you would need to transform the request message into the format required by the native service before CloudStreams sends the requests to the native service. For more information, see Sample XSLT Transformation for GET-to-POST or GET-to-PUT.
GET
PUT
Identical to GET-to-POST, except that CloudStreams changes the request's HTTP method from GET to PUT.
GET
DELETE
No comment.
POST
GET
*CloudStreams will translate the POSTed request elements into query string parameters, in a root element. An incoming POST or PUT request cannot be translated into a GET or DELETE if the request has nested elements. For example:
(this is correct)
<person>
<lastName>Smith</lastName>
</person>
(this is incorrect)
<person>
<name>
<last>Smith</last>
</name>
</person>
*If you want to send additional parameters as part of the request URL, you can transform this payload. To do this, you can use an XSLT file or a webMethods IS service call to add parameters before the request is sent to the native service. For more information, see The "In Sequence" Step (REST).
POST
DELETE
Identical to POST-to-GET, except that CloudStreams changes the request's HTTP method from POST to DELETE.
POST
PUT
The Content-Type of the changed request is sent as application/xml or application/json, and the charset is UTF-8.
PUT
GET
Identical to POST-to-GET, except that CloudStreams changes the request's HTTP method from PUT to GET.
PUT
POST
The Content-Type of the changed request is sent as application/xml or application/json, and the charset is UTF-8.
PUT
DELETE
Identical to POST-to-DELETE, except that CloudStreams changes the request's HTTP method from PUT to DELETE.
DELETE
GET
No comment.
DELETE
POST
Identical to GET-to-POST, except that CloudStreams changes the request's HTTP method from DELETE to POST.
DELETE
PUT
Identical to GET-to-PUT, except that CloudStreams changes the request's HTTP method from DELETE to PUT.
GET, POST, PUT or DELETE
CUSTOM
GET or DELETE
POST or PUT
Note that the query parameters will be picked off the URL and stored as top-level elements when the message is sent to the native service. The query parameters are ignored on the endpoint URL and lost when we POST to the native provider (that is, do not change the protocol method).
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