I have designed an itinerary as below:
Receive a request
Transform the request
Send the transformed message to service1 and get a response
It works Perfectly, but I want to invoke another service for the same request.
Where should I do the second transformation and service invocation?
Related
I need to create a middleware app that provides an api and consumes two apis. I am currently taking data from API A and creating data to send to API B via the HttpFoundation Request class. However, before I take the response from API B and send it back to API A; I would like to make sure that the HTTP Status Code is 200.
I don't see the ability to check for the status code when using the Request class.
I implemented a grpc server in Golang. This server has multiple endpoints, but for one of the endpoints I want to implement an interceptor that will check the validity of an authentication token before proceeding with the request. I know how to implement an interceptor that will run when a request reaches any of the grpc endpoints, but how can I make so that my interceptor only runs for one specific endpoint?
For those interested, I was able to find the method of the request by inspecting the grpc.UnaryServerInfo param of the interceptor. There is an attribute called FullMethod that gives you the the endpoint of the request.
You can get the method name and compare when you are getting a request through your interceptor. Your custom interceptor will have one component called ServerInfo which will help you to filter from which method you are getting called. Based on that, you can filter out your authentication endpoint
I'm trying to understand OSB and i have the situation shown in figure.
JMSProducer is a Business Service that produce a message (request) that is put in RequestQueue
JMSConsumer is a proxy consume the message request
JMSReplyProducer is a Business Service JMSReplyProducer generate a response
JMSReplyConsumer is a proxy that consume the response.
I have problem to set the flow. I'm using OEPE to setup the Oracle Service BUS. I've already create a JMSProducer that send a request to JMSconsume and I let
JMSConsumer to consume the request. In JMSConsumer i have a pipeline pair and in the request pipeline a node stage with a log.
I don't understand, as shown in Figure, how to put in comunication the JMSConsumer with JMSReplyProducer and let JMSReplyCOnsume to consume the response.
Set up the queues first
The OSB cluster on the left has a proxy service (represented by the circle at the top left)
That proxy routes to a JMS-transport business service with URL pointing to RequestQueue, and Is Response Required checked, and using the default correlation ID to pull from ResponseQueue
On the cluster on the right, create a JMS-transport proxy that reads from RequestQueue, has Is Response Required checked, and outputs back to ResponseQueue. You can then fill out that proxy to do whatever you want.
As usual, we surf the internet using http protocol with firefox,chrome browser,such as we visit stackoverlow by https://stackoverflow.com/questions/ask, we get the rendered page, stackoverflow is process A, and our browser is process B.is this the RPC call?
RPC means giving the illusion of calling a procedure (method) whose implementation is in a process distinct from the caller. HTTP itself does not provide that illusion. The typical case of a browser requesting HTML from a server is not an RPC call.
However, RPC technologies can be built atop HTTP, where a remote method invocation is implemented as an HTTP request, and returning the method's results is implemented via the HTTP response.
Your example describes not a RPC call it describes a REST call.
The URI https://stackoverflow.com/questions/ask (unfortunately the name of the resource was not a good choice) is the resource (not a process) and through a HTTP method your are manipulate or request the resource. So REST is all about resources whereas RPC is about operations/procedures/methods.
A RPC call is also possible with HTTP. Always when you are using a HTTP to call an operation it's RPC. This is called
WYGOPIAO: What You GET Or POST Is An Operation
JSON-RPC uses The HTTP methods GET or POST to call an method/operation/procedure by sending an JSON encoded string. The example below shows the JSON-RPC object to call the method echo.
{"jsonrpc": "2.0", "method": "echo", "params": ["hello world"], "id": 0}
Dears,
I developed my first datapower b2b solution, it must handle soap messages, the sender is sending soap message and the b2b service must retrieve soap also.
and I did the following :
I created an external Profile ExternalParter_hub and internal Partner IntrenalPartner_hub.
I set the destination for IntrenalPartner_hub to soap web service as a back-end.
IntrenalPartner_hub I made the response type SOAP.
I created B2BGW service and i added the Profiles above and i created HTTP Front Side handler for it.
In the B2BGW service that i created , i used the Document Routing Preprocessor in Advanced tab and I set the xsl document to assign sender and reciever data.
I created MPGW service and routes to the B2BGW service.
I tested the service using soapui by calling MPGW url as endpoint,
the soapui response panel is empty and the header section tells me that everything is ok. When Opening debug probe it tells that the soap service returns success soap message...
but MPGW service doesn't recieves any response from B2BGW service!!
and B2B Transaction Viewer show that message result is success ??
what is the missing part !!!!
The B2BGW in DataPower can't return any Response data other than its own "signals", eg. AS2 MDN or ebMS receipts.
You have to either create/fetch your Response data in the MPGW "proxy" and attach that as the Result to the HTTP 200 Response from the B2BGW or use a url-open() (XSLT or GWS) in the Response (server-to-client) rule of the internal B2B partner.
So, there is no missing part, only a limitation in DataPower B2BGW...