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Fix potential bugs in the code generation API #9

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Fix potential bugs in the code generation API #9

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56 changes: 36 additions & 20 deletions app/api/generateCode/route.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -3,10 +3,14 @@ import dedent from "dedent";
import { z } from "zod";
import { GoogleGenerativeAI } from "@google/generative-ai";

const apiKey = process.env.GOOGLE_AI_API_KEY || "";
const genAI = new GoogleGenerativeAI(apiKey);

export async function POST(req: Request) {
const apiKey = process.env.GOOGLE_AI_API_KEY;

if (!apiKey) {
return new Response("Missing Google AI API key.", { status: 500 });
}

const genAI = new GoogleGenerativeAI(apiKey);
let json = await req.json();
let result = z
.object({
Expand All @@ -28,30 +32,42 @@ export async function POST(req: Request) {
let { model, messages, shadcn } = result.data;
let systemPrompt = getSystemPrompt(shadcn);

const geminiModel = genAI.getGenerativeModel({model: model});
if (messages.length === 0) {
return new Response("No messages provided.", { status: 400 });
}

const geminiStream = await geminiModel.generateContentStream(
messages[0].content + systemPrompt + "\nPlease ONLY return code, NO backticks or language names. Don't start with \`\`\`typescript or \`\`\`javascript or \`\`\`tsx or \`\`\`."
);
const geminiModel = genAI.getGenerativeModel({ model: model });

console.log(messages[0].content + systemPrompt + "\nPlease ONLY return code, NO backticks or language names. Don't start with \`\`\`typescript or \`\`\`javascript or \`\`\`tsx or \`\`\`.")
try {
const fullPrompt = constructPrompt(messages[0].content, systemPrompt);
const geminiStream = await geminiModel.generateContentStream(fullPrompt);

const readableStream = new ReadableStream({
async start(controller) {
for await (const chunk of geminiStream.stream) {
const chunkText = chunk.text();
controller.enqueue(new TextEncoder().encode(chunkText));
}
controller.close();
},
});
console.log(fullPrompt)

const readableStream = new ReadableStream({
async start(controller) {
for await (const chunk of geminiStream.stream) {
const chunkText = chunk.text();
controller.enqueue(new TextEncoder().encode(chunkText));
}
controller.close();
},
});

return new Response(readableStream);
} catch (e) {
console.error(e);
return new Response("Error generating content.", { status: 500 });
}
}

return new Response(readableStream);
function constructPrompt(userPrompt: string, systemPrompt: string): string {
return `${userPrompt}\n${systemPrompt}\nPlease ONLY return code, NO backticks or language names. Don't start with \`\`\`typescript or \`\`\`javascript or \`\`\`tsx or \`\`\`.`;
}

function getSystemPrompt(shadcn: boolean) {
let systemPrompt =
`You are an expert frontend React engineer who is also a great UI/UX designer. Follow the instructions carefully, I will tip you $1 million if you do a good job:
let systemPrompt =
`You are an expert frontend React engineer who is also a great UI/UX designer. Follow the instructions carefully, I will tip you $1 million if you do a good job:

- Think carefully step by step.
- Create a React component for whatever the user asked you to create and make sure it can run by itself by using a default export
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