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From "Balazs Szeti (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CAMEL-11622) Rest-dsl doesn't support post() endpoints with different request body types
Date Wed, 02 Aug 2017 14:44:00 GMT

    [ https://issues.apache.org/jira/browse/CAMEL-11622?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16111042#comment-16111042
] 

Balazs Szeti commented on CAMEL-11622:
--------------------------------------

Thanks for looking into this.

I modified the sample above to make clear that the two post URIs are different: /api/user/employee
vs. /api/country/origin, the problem is still there. The root cause I think is that there
can be used only one DataFormat instance ("json-jackson" by default) and it can unmarshal
to one type only. This means that all post() endpoints in a CamelContext must accept the same
type json object in request body.

I couldn't find a way to build a CamelContext providing two post() endpoints (on different
URIs) with different type().

> Rest-dsl doesn't support post() endpoints with different request body types
> ---------------------------------------------------------------------------
>
>                 Key: CAMEL-11622
>                 URL: https://issues.apache.org/jira/browse/CAMEL-11622
>             Project: Camel
>          Issue Type: Wish
>          Components: rest
>    Affects Versions: 2.18.1
>         Environment: Spring-Boot with Tomcat8 container
>            Reporter: Balazs Szeti
>
> The rest-dsl doesn't support two post() endpoints with different request body types.
> {code:java}
> restConfiguration()
>   .component("servlet")
>   .contextPath("/api")
>   .bindingMode(RestBindingMode.json)
> ;
> rest("/user")
>   .post("/employee").type(UserPojo.class)
>       .route()
>       .log("Name: ${body.name}")
>       .endRest()
> ;
> rest("/country")
>   .post("/origin").type(CountryPojo.class)
>       .route()
>       .log("Name: ${body.country}")
>       .endRest()
> ;
> {code}
> Both endpoints (/api/user/employee, /api/country/origin) tries to unmarshal the post
body to CountryPojo and a JsonProcessingException is thrown when a UserPojo json is sent to
/user/employee.
> The problem is that they share one JascksonDataFormat instance registered with name "json-jackson"
and the RestDefinition.type() sets the JascksonDataFormat.unmarshalType so at the end both
post() endpoints will try to unmarshal to the same class.



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