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GCP client for Google AI platform (#276)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,51 +1,89 @@ | ||
| plugins { | ||
| id(libs.plugins.kotlin.multiplatform.get().pluginId) | ||
| id(libs.plugins.kotlinx.serialization.get().pluginId) | ||
| alias(libs.plugins.spotless) | ||
| alias(libs.plugins.arrow.gradle.publish) | ||
| alias(libs.plugins.semver.gradle) | ||
| id(libs.plugins.kotlin.multiplatform.get().pluginId) | ||
| id(libs.plugins.kotlinx.serialization.get().pluginId) | ||
| alias(libs.plugins.spotless) | ||
| alias(libs.plugins.arrow.gradle.publish) | ||
| alias(libs.plugins.semver.gradle) | ||
| } | ||
|
|
||
| repositories { | ||
| mavenCentral() | ||
| mavenCentral() | ||
| } | ||
|
|
||
| java { | ||
| sourceCompatibility = JavaVersion.VERSION_11 | ||
| targetCompatibility = JavaVersion.VERSION_11 | ||
| toolchain { | ||
| languageVersion = JavaLanguageVersion.of(11) | ||
| } | ||
| sourceCompatibility = JavaVersion.VERSION_11 | ||
| targetCompatibility = JavaVersion.VERSION_11 | ||
| toolchain { | ||
| languageVersion = JavaLanguageVersion.of(11) | ||
| } | ||
| } | ||
|
|
||
| kotlin { | ||
| jvm() | ||
| js(IR) { | ||
| browser() | ||
| nodejs() | ||
| jvm() | ||
| js(IR) { | ||
| browser() | ||
| nodejs() | ||
| } | ||
|
|
||
| linuxX64() | ||
| macosX64() | ||
| macosArm64() | ||
| mingwX64() | ||
|
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| sourceSets { | ||
| val commonMain by getting { | ||
| dependencies { | ||
| api(projects.xefCore) | ||
| implementation(libs.bundles.ktor.client) | ||
| } | ||
| } | ||
|
|
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| val jvmMain by getting { | ||
| dependencies { | ||
| implementation(libs.logback) | ||
| api(libs.ktor.client.cio) | ||
| } | ||
| } | ||
|
|
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| val jsMain by getting { | ||
| dependencies { | ||
| api(libs.ktor.client.js) | ||
| } | ||
| } | ||
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| linuxX64() | ||
| macosX64() | ||
| macosArm64() | ||
| mingwX64() | ||
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| sourceSets { | ||
| val commonMain by getting { | ||
| dependencies { | ||
| api(projects.xefCore) | ||
| } | ||
| } | ||
| val linuxX64Main by getting { | ||
| dependencies { | ||
| api(libs.ktor.client.cio) | ||
| } | ||
| } | ||
|
|
||
| val macosX64Main by getting { | ||
| dependencies { | ||
| api(libs.ktor.client.cio) | ||
| } | ||
| } | ||
|
|
||
| val macosArm64Main by getting { | ||
| dependencies { | ||
| api(libs.ktor.client.cio) | ||
| } | ||
| } | ||
|
|
||
| val mingwX64Main by getting { | ||
| dependencies { | ||
| api(libs.ktor.client.winhttp) | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
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||
| spotless { | ||
| kotlin { | ||
| target("**/*.kt") | ||
| ktfmt().googleStyle() | ||
| } | ||
| kotlin { | ||
| target("**/*.kt") | ||
| ktfmt().googleStyle() | ||
| } | ||
| } | ||
|
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| tasks.withType<AbstractPublishToMaven> { | ||
| dependsOn(tasks.withType<Sign>()) | ||
| dependsOn(tasks.withType<Sign>()) | ||
| } |
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integrations/gcp/src/commonMain/kotlin/com/xebia/functional/xef/gcp/GcpClient.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,116 @@ | ||
| package com.xebia.functional.xef.gcp | ||
|
|
||
| import com.xebia.functional.xef.AIError | ||
| import io.ktor.client.HttpClient | ||
| import io.ktor.client.call.body | ||
| import io.ktor.client.plugins.HttpRequestRetry | ||
| import io.ktor.client.plugins.HttpTimeout | ||
| import io.ktor.client.plugins.contentnegotiation.ContentNegotiation | ||
| import io.ktor.client.request.header | ||
| import io.ktor.client.request.post | ||
| import io.ktor.client.request.setBody | ||
| import io.ktor.client.statement.bodyAsText | ||
| import io.ktor.http.ContentType | ||
| import io.ktor.http.HttpStatusCode | ||
| import io.ktor.http.contentType | ||
| import io.ktor.http.isSuccess | ||
| import io.ktor.serialization.kotlinx.json.json | ||
| import kotlinx.serialization.Serializable | ||
| import kotlinx.serialization.json.Json | ||
|
|
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| @OptIn(ExperimentalStdlibApi::class) | ||
| class GcpClient( | ||
| private val apiEndpoint: String, | ||
| private val projectId: String, | ||
| private val modelId: String, | ||
| private val token: String | ||
| ) : AutoCloseable { | ||
| private val http: HttpClient = HttpClient { | ||
| install(HttpTimeout) | ||
| install(HttpRequestRetry) | ||
| install(ContentNegotiation) { | ||
| json( | ||
| Json { | ||
| encodeDefaults = false | ||
| isLenient = true | ||
| } | ||
| ) | ||
| } | ||
| } | ||
|
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| @Serializable | ||
| private data class Prompt(val instances: List<Instance>, val parameters: Parameters? = null) | ||
|
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| @Serializable | ||
| private data class Instance( | ||
| val context: String? = null, | ||
| val examples: List<Example>? = null, | ||
| val messages: List<Message>, | ||
| ) | ||
|
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| @Serializable data class Example(val input: String, val output: String) | ||
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| @Serializable private data class Message(val author: String, val content: String) | ||
|
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| @Serializable | ||
| private class Parameters( | ||
| val temperature: Double? = null, | ||
| val maxOutputTokens: Int? = null, | ||
| val topK: Int? = null, | ||
| val topP: Double? = null | ||
| ) | ||
|
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| @Serializable data class Response(val predictions: List<Predictions>) | ||
|
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| @Serializable | ||
| data class SafetyAttributes( | ||
| val blocked: Boolean, | ||
| val scores: List<String>, | ||
| val categories: List<String> | ||
| ) | ||
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| @Serializable data class CitationMetadata(val citations: List<String>) | ||
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| @Serializable data class Candidates(val author: String?, val content: String?) | ||
|
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| @Serializable | ||
| data class Predictions( | ||
| val safetyAttributes: List<SafetyAttributes>, | ||
| val citationMetadata: List<CitationMetadata>, | ||
| val candidates: List<Candidates> | ||
| ) | ||
|
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| suspend fun promptMessage( | ||
| prompt: String, | ||
| temperature: Double? = null, | ||
| maxOutputTokens: Int? = null, | ||
| topK: Int? = null, | ||
| topP: Double? = null | ||
| ): String { | ||
| val body = | ||
| Prompt( | ||
| listOf(Instance(messages = listOf(Message(author = "user", content = prompt)))), | ||
| Parameters(temperature, maxOutputTokens, topK, topP) | ||
| ) | ||
| val response = | ||
| http.post( | ||
| "https://$apiEndpoint/v1/projects/$projectId/locations/us-central1/publishers/google/models/$modelId:predict" | ||
| ) { | ||
| header("Authorization", "Bearer $token") | ||
| contentType(ContentType.Application.Json) | ||
| setBody(body) | ||
| } | ||
|
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| return if (response.status.isSuccess()) | ||
| response.body<Response>().predictions.firstOrNull()?.candidates?.firstOrNull()?.content | ||
| ?: throw AIError.NoResponse() | ||
| else throw GcpClientException(response.status, response.bodyAsText()) | ||
| } | ||
|
|
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| class GcpClientException(val httpStatusCode: HttpStatusCode, val error: String) : | ||
| IllegalStateException("$httpStatusCode: $error") | ||
|
|
||
| override fun close() { | ||
| http.close() | ||
| } | ||
| } |