On Thu, Sep 7, 2017 at 5:24 AM, chetan choulwar <[email protected]> wrote:
> Hi All,
>
> I'm calling different REST APIs and getting different kinda JSON responses;
> is there any way to pick particular attribute from different JSON responses
> and map it to a one common property of defined POJO (Resource for my API)
> that can then be sent as a response from the REST API that I've exposed?
>
> For Example:
> By calling REST API "https://xyz.com/resources/resource"; gives me
> {"name":"abc.txt"}
> and calling "https://abc.com/resources/resource"; gives me
> {"title":"idontknow.txt"}
>
> And I have one resource class defined for my APIs to return i.e.
> MyResource
> {
> String fileName;
> }
>
> So is there any way that I can map "name"/"title" to fileName i.e. how can I
> use jackson to deserialize these jsons to MyResource type?
>
> Please let me know if this is valid? and if yes, how?
If you have many different names to use, it may be simpler to just
bind JSON to `Map` or `JsonNode`, and extract value explicitly.
But if there are just couple of values, you can use `@JsonAlias` like:
public class POJO {
@JsonAlias({ "name", "title" })
public String fileName;
}
which would then accept alternate names "name" and "title", but
serialize as "fileName" (which it also accepts).
This annotations was added in Jackson 2.9
-+ Tatu +-
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