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Simplify endpoints in example app

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This commit is contained in:
Michael Bull 2018-01-11 19:27:07 +00:00
parent 76870ef78a
commit d2723009df
1 changed files with 36 additions and 37 deletions
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45
example/src/main/kotlin/com/github/michaelbull/result/example/Application.kt
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@ -1,13 +1,11 @@
package com.github.michaelbull.result.example
import com.github.michaelbull.result.andThen
import com.github.michaelbull.result.*
import com.github.michaelbull.result.example.model.domain.Customer
import com.github.michaelbull.result.example.model.domain.CustomerId
import com.github.michaelbull.result.example.model.domain.DomainMessage
import com.github.michaelbull.result.example.model.dto.CustomerDto
import com.github.michaelbull.result.example.service.CustomerService
import com.github.michaelbull.result.mapBoth
import com.github.michaelbull.result.mapError
import io.ktor.application.Application
import io.ktor.application.call
import io.ktor.application.install
@ -22,6 +20,7 @@ import io.ktor.response.respond
import io.ktor.routing.get
import io.ktor.routing.post
import io.ktor.routing.routing
import io.ktor.util.ValuesMap
fun Application.main() {
install(DefaultHeaders)
@ -35,45 +34,45 @@ fun Application.main() {
routing {
get("/customers/{id}") {
val id = call.parameters["id"]?.toLongOrNull()
if (id == null) {
call.respond(HttpStatusCode.BadRequest)
} else {
CustomerId.create(id)
readId(call.parameters)
.andThen(CustomerId.Companion::create)
.andThen(CustomerService::getById)
.mapError(::messageToResponse)
.mapBoth(
success = { call.respond(HttpStatusCode.OK, CustomerDto.from(it)) },
failure = { call.respond(it.first, it.second) }
{ call.respond(HttpStatusCode.OK, CustomerDto.from(it)) },
{ call.respond(it.first, it.second) }
)
}
}
post("/customers/{id}") {
val id = call.parameters["id"]?.toLongOrNull()
if (id == null) {
call.respond(HttpStatusCode.BadRequest)
} else {
readId(call.parameters)
.andThen {
val dto = call.receive<CustomerDto>()
dto.id = id
Customer.from(dto)
dto.id = it
Ok(dto)
}
.andThen(Customer.Companion::from)
.andThen(CustomerService::upsert)
.mapError(::messageToResponse)
.mapBoth(
success = {
if (it == null) {
{ event ->
if (event == null) {
call.respond(HttpStatusCode.NotModified)
} else {
val (status, message) = messageToResponse(it)
val (status, message) = messageToResponse(event)
call.respond(status, message)
}
},
failure = { call.respond(it.first, it.second) }
{ call.respond(it.first, it.second) }
)
}
}
}
}
private fun readId(values: ValuesMap): Result<Long, DomainMessage> {
val id = values["id"]?.toLongOrNull()
return if (id != null) Ok(id) else Err(DomainMessage.CustomerRequired)
}
private fun messageToResponse(message: DomainMessage) = when (message) {