akka/akka-http

Can we provide implicit to make Marshal JsValue => Message work?

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#2,027 opened on May 22, 2018

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 (1 comment) (3 reactions) (0 assignees)Scala (598 forks)batch import
1 - triagedhelp wantednice-to-have (low-prio)t:http:marshalling

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Description

Likely we could provide another marshaller to make it easier to render TextMessage when one has defined a jsonFormat for a given type.

To enable: val outgoing = Marshal(myMsg).to[Message]

Contributor guide

Research direction
Examine the existing marshaller infrastructure in Akka HTTP, specifically how implicit marshallers for JSON are defined. Then implement a new implicit marshaller that allows converting a JsValue to a Message (e.g., TextMessage) utilizing the existing JSON format.
Tech stack
scala
Domain
backend
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
ScalaAkkaGit
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
60