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Merge pull request #17 from alyssaruth/ktor-1
Ktor 1
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,13 @@ | ||
| package http | ||
|
|
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| interface ApiResponse<T> { | ||
| val statusCode: Int | ||
| } | ||
|
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| data class SuccessResponse<T>(override val statusCode: Int, val body: T) : ApiResponse<T> | ||
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| data class FailureResponse<T>( | ||
| override val statusCode: Int, | ||
| val errorCode: String?, | ||
| val errorMessage: String? | ||
| ) : ApiResponse<T> |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,10 @@ | ||
| package http | ||
|
|
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| import dto.HealthCheckResponse | ||
| import kong.unirest.HttpMethod | ||
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| class HealthCheckApi(private val httpClient: HttpClient) { | ||
| fun doHealthCheck() { | ||
| httpClient.doCall<HealthCheckResponse>(HttpMethod.GET, "/health-check") | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,89 @@ | ||
| package http | ||
|
|
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| import dto.ClientErrorResponse | ||
| import java.util.* | ||
| import kong.unirest.HttpMethod | ||
| import kong.unirest.HttpResponse | ||
| import kong.unirest.JsonObjectMapper | ||
| import kong.unirest.Unirest | ||
| import logging.Severity | ||
| import util.Globals.baseUrl | ||
| import utils.InjectedThings.logger | ||
|
|
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| class HttpClient { | ||
| val jsonObjectMapper = JsonObjectMapper() | ||
|
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| inline fun <reified T : Any?> doCall( | ||
| method: HttpMethod, | ||
| route: String, | ||
| payload: Any? = null, | ||
| ): ApiResponse<T> { | ||
| val requestId = UUID.randomUUID() | ||
| val requestJson = payload?.let { jsonObjectMapper.writeValue(payload) } | ||
|
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| logger.info( | ||
| "http.request", | ||
| "$method $route", | ||
| "requestId" to requestId, | ||
| "requestBody" to requestJson, | ||
| ) | ||
|
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| val request = Unirest.request(method.toString(), "${baseUrl}${route}") | ||
| payload?.let { request.body(requestJson) } | ||
| val response = request.asString() | ||
|
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| if (response.isSuccess) { | ||
| logResponse(Severity.INFO, requestId, route, method, requestJson, response) | ||
| val body = jsonObjectMapper.readValue(response.body, T::class.java) | ||
| return SuccessResponse(response.status, body) | ||
| } else { | ||
| val errorResponse = tryParseErrorResponse(response) | ||
| logResponse( | ||
| Severity.ERROR, | ||
| requestId, | ||
| route, | ||
| method, | ||
| requestJson, | ||
| response, | ||
| errorResponse, | ||
| ) | ||
| return FailureResponse( | ||
| response.status, | ||
| errorResponse?.errorCode, | ||
| errorResponse?.errorMessage, | ||
| ) | ||
| } | ||
| } | ||
|
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| fun tryParseErrorResponse(response: HttpResponse<String>) = | ||
| try { | ||
| jsonObjectMapper.readValue(response.body, ClientErrorResponse::class.java) | ||
| } catch (e: Exception) { | ||
| null | ||
| } | ||
|
|
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| fun logResponse( | ||
| level: Severity, | ||
| requestId: UUID, | ||
| route: String, | ||
| method: HttpMethod, | ||
| requestJson: String?, | ||
| response: HttpResponse<String>, | ||
| errorResponse: ClientErrorResponse? = null, | ||
| ) { | ||
| logger.log( | ||
| level, | ||
| "http.response", | ||
| "Received ${response.status} for $method $route", | ||
| null, | ||
| mapOf( | ||
| "requestId" to requestId, | ||
| "requestBody" to requestJson, | ||
| "responseCode" to response.status, | ||
| "responseBody" to response.body?.toString(), | ||
| "clientErrorCode" to errorResponse?.errorCode, | ||
| "clientErrorMessage" to errorResponse?.errorMessage, | ||
| ), | ||
| ) | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,10 @@ | ||
| package util | ||
|
|
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| import http.HealthCheckApi | ||
| import http.HttpClient | ||
|
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| object Globals { | ||
| private val httpClient = HttpClient() | ||
| val baseUrl = "http://localhost:8080" | ||
| var healthCheckApi = HealthCheckApi(httpClient) | ||
| } |
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