Is there a way to mount sub routers context Lets say I want

Question

Is there a way to mount sub routers context Lets say I want to make an OrderService and a UserService both of them will return a router route object or something and in main I want to mount them onto my main router is that possible

tipsy · Answer

You can pass the Javalin instance into your service there is no support for adding a group

tipsy · Answer

Javalin encourages you to keep all your routes in the same file

asad.awadia · Answer

How do i allow multiple devs to work on independent services and export a router to be mounted in that one same file You know Like microservices but still in one app

asad.awadia · Answer

Where each service returns routes to be mounted to the base

tipsy · Answer

that sounds a bit contradictory thinking face

tipsy · Answer

what is the reason for not wanting all the routes in one file if it is in fact one service

asad.awadia · Answer

No i am not saying it wont be in one file i want them in one file I m asking how can I organise it such that when you read that file the routes are grouped by services rather than this route goes to this handler that route goes to this handler etc

asad.awadia · Answer

Like a modular sub router design

tipsy · Answer

i m not sure if i understand could you write pseudo code for what you want to achieve

asad.awadia · Answer

<https www devcon5 ch en blog 2017 09 15 vertx modular router design |https www devcon5 ch en blog 2017 09 15 vertx modular router design > This one is more geared towards vertx but same thought Iterate over all services subrouters and mount them to a single global main router

tipsy · Answer

it looks like they re just doing this ```fun main val app = Javalin val userService = UserService deps val smsService = SmsService deps userService addRoutes app smsService addRoutes app ```

tipsy · Answer

since the `ApiBuilder` class in javalin uses a temporary static variable which is only valid inside the scope of a `routes` call you could potentially build your own fancy DSL for this although i don t really recommend it

asad.awadia · Answer

Beautiful that s what I was looking for thanks

asad.awadia · Answer

So the javalin instance can be passed around np

tipsy · Answer

sure it s just an object pass it wherever you want

tipsy · Answer

i ve seen people use that pattern before

tipsy · Answer

this tutorial does something similar <https javalin io tutorials javalin java 10 google guice>

tipsy · Answer

but i have never actually read the whole thing sweat smile

asad.awadia · Answer

Is the pattern same if one service is exporting routes and one is exporting websocket handlers

tipsy · Answer

yes they re both functions that basically add a lambda to a list of lambdas in the router

tipsy · Answer

the signature for the websocket handler is ```fun handleWs ws WsHandler ws onConnect ws onClose ```

tipsy · Answer

so you could make something like ```class MyService fun addRoutes app Javalin app get path myGetHandler <http app ws|app ws> path myWsHandler ```

asad.awadia · Answer

Oh beautiful

asad.awadia · Answer

Dude thank you so much pray

tipsy · Answer

No problem