[JAMES-2889] Implement jmap protocol POJO and serialization

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Component/s: JMAP
• Assignee: Antoine Duprat
• Reporter: Benoit Tellier
• Created: 18/Sep/19 02:47
• Updated: 27/Mar/20 02:07
• Resolved: 27/Mar/20 02:07

Description

The idea would be to deserialize the invocation data-type [1] as well as the request object [2] for the echo method using *play-json* library.

 {
 "using": [ "urn:ietf:params:jmap:core"],
 "methodCalls": [
 [ "Core/echo",
{ "arg1": "arg1data", "arg2": "arg2data" }
, "c1" ]
 ]
 }

[1] https://jmap.io/spec-core.html#the-invocation-data-type
[2] https://jmap.io/spec-core.html#the-request-object

The *MethodArguments* will be a sealed trait.

Deserialisation of Requestobject will be done with pattern matching:
`JsArray(Seq(JsString(methodName), JsObject, JsString(methodCallId))`

Also we will need to serialize the response object [3]:

 {
 "methodResponses": [
 [ "Core/echo",

{ "arg1": "arg1data", "arg2": "arg2data" }

, "c1" ]
 ],
 "sessionState": "75128aab4b1b"
 }

[3] https://jmap.io/spec-core.html#the-response-object

*DOD* demonstrate serialization / deserialization in unit tests in `jmap-rfc-8620` maven module