WSO2 guaranteed delivery message In memory store - wso2

Question

Trying to make workable solution for guaranteed delivery In memory.
Create InMemoryStore InMemMessageStore, create and point InsertInvoice
create API so code looking like this :
Sequence:
<?xml version="1.0" encoding="UTF-8"?> <sequence name="InMMSsequence" xmlns="http://ws.apache.org/ns/synapse">
<log level="custom">
<property name="STATE" value="message is sent to InMemMessageStore"/>
</log>
<property name="FORCE_SC_ACCEPTED" scope="axis2" type="STRING" value="True"/>
<axis2ns12:store messageStore="InMemMessageStore" xmlns:axis2ns12="http://ws.apache.org/ns/synapse"/> </sequence>
my API looks like :
<resource methods="POST" uri-template="/sendMessage">
<inSequence>
<sequence key="InMMSsequence"/>
</inSequence>
<outSequence/>
<faultSequence/>
</resource>
Message Processor :
<messageProcessor name="MySMessageProcessor" class="org.apache.synapse.message.processor.impl.forwarder.ScheduledMessageForwardingProcessor" targetEndpoint="InsertInvoice" messageStore="InMemMessageStore" xmlns="http://ws.apache.org/ns/synapse">
<parameter name="interval">1000</parameter>
<parameter name="client.retry.interval">1000</parameter>
<parameter name="max.delivery.attempts">4</parameter>
<parameter name="is.active">true</parameter>
<parameter name="max.delivery.drop">Disabled</parameter>
<parameter name="member.count">1</parameter>
</messageProcessor>
And point :
<endpoint xmlns="http://ws.apache.org/ns/synapse"
name="InsertInvoice">
<http uri-template="http://xxxx.xxx.xxx.xxx/InsertInvoiceVehicleList"
method="post">
<suspendOnFailure>
<progressionFactor>1.0</progressionFactor>
</suspendOnFailure>
<markForSuspension>
<retriesBeforeSuspension>0</retriesBeforeSuspension>
<retryDelay>0</retryDelay>
</markForSuspension> </http> </endpoint>
PROBLEMS:
over PostMan I'm sending the request in JSON format but when I open InMemMessageStore message is in XML ?!? Why?
Endpoint expecting message in JSON format. Probably this is the reason of failure BUT on log I see something like
Failed to send the message through the fault sequence. Sequence name does not Exist.
Is the fault sequence mandatory or it is complaining because I don't have any default error sequence defines at all ?
also
Unable to sendViaPost to url[http://xxx.xxx.xx.xx/InsertInvoiceVehicleList/sendMessage]
Why the 'sendMessage' (This is uritemplate that is defined in API is added on endpoint url ?!?!)
so : Biggest issue here is how to keep message in JSON format and how to keep endpoint url intact ...

Answer 1

I found the problem and I wanted to share it with others ...
1. call end point from API adds postfix on end gives the error
By default, URI template 'sendMessage' will get appended to the target URL when sending messages out. You need to use following property in your sequence to remove URI template from target URL
<property action="remove" name="REST_URL_POSTFIX" scope="axis2"/>.
2. message processor fails to send message to end point
My end point was api .net web service and issue was with HTTP 1.1 chunking,had to disable it since .NET service doesn’t support it.
This setting is in axis2_blocking_client.xml and axis2_client.xml
<parameter name="Transfer-Encoding">chunked</parameter>
3. message processor fails to send message to end point
my seccond End point was servicestack web service and I used end point like
http://xxxx.xxx.xxx.xxx/TMSALSvc/UpdateStatus
but problem was that I needed to specify the reponce format. Once when I put a EndPoint delaration like
http://xxx.xxx.xxx.xx/TMSALSvc/json/reply/UpdateStatus
everything forked
I hope that this can same some times for other facing the same issues