chatbot-ui/app/api/chat/custom/route.ts

67 lines
2.0 KiB
TypeScript

import { Database } from "@/supabase/types"
import { ChatSettings } from "@/types"
import { createClient } from "@supabase/supabase-js"
import { OpenAIStream, StreamingTextResponse } from "ai"
import { ServerRuntime } from "next"
import OpenAI from "openai"
import { ChatCompletionCreateParamsBase } from "openai/resources/chat/completions.mjs"
export const runtime: ServerRuntime = "edge"
export async function POST(request: Request) {
const json = await request.json()
const { chatSettings, messages, customModelId } = json as {
chatSettings: ChatSettings
messages: any[]
customModelId: string
}
try {
const supabaseAdmin = createClient<Database>(
process.env.NEXT_PUBLIC_SUPABASE_URL!,
process.env.SUPABASE_SERVICE_ROLE_KEY!
)
const { data: customModel, error } = await supabaseAdmin
.from("models")
.select("*")
.eq("id", customModelId)
.single()
if (!customModel) {
throw new Error(error.message)
}
const custom = new OpenAI({
apiKey: customModel.api_key || "",
baseURL: customModel.base_url
})
const response = await custom.chat.completions.create({
model: chatSettings.model as ChatCompletionCreateParamsBase["model"],
messages: messages as ChatCompletionCreateParamsBase["messages"],
temperature: chatSettings.temperature,
stream: true
})
const stream = OpenAIStream(response)
return new StreamingTextResponse(stream)
} catch (error: any) {
let errorMessage = error.message || "An unexpected error occurred"
const errorCode = error.status || 500
if (errorMessage.toLowerCase().includes("api key not found")) {
errorMessage =
"Custom API Key not found. Please set it in your profile settings."
} else if (errorMessage.toLowerCase().includes("incorrect api key")) {
errorMessage =
"Custom API Key is incorrect. Please fix it in your profile settings."
}
return new Response(JSON.stringify({ message: errorMessage }), {
status: errorCode
})
}
}