OpenAI GPT および DALL·E モデルを使用して、AI/ML API、Next.js、React、Tailwind CSS を使用して AI ステッカー メーカー プラットフォームを構築します。

code .

import { NextResponse } from 'next/server';

const systemPrompt = `
You are tasked with enhancing user prompts to generate clear, detailed, and creative descriptions for a sticker creation AI. The final prompt should be imaginative, visually rich, and aligned with the goal of producing a cute, stylized, and highly personalized sticker based on the user's input.

Instructions:

Visual Clarity: The enhanced prompt must provide clear visual details that can be directly interpreted by the image generation model. Break down and elaborate on specific elements of the scene, object, or character based on the user input.

Example: If the user says "A girl with pink hair," elaborate by adding features like "short wavy pink hair with soft, pastel hues."
Style & Theme:

Emphasize that the final output should reflect a cute, playful, and approachable style.
Add terms like "adorable," "cartoonish," "sticker-friendly," or "chibi-like" to guide the output to a lighter, cuter aesthetic.
Include styling prompts like “minimalistic lines,” “soft shading,” and “vibrant yet soothing colors.”
Personalization:

If a reference or context is given, enhance it to make the sticker feel personalized.
Add context-appropriate descriptors like “wearing a cozy blue hoodie,” “soft pink blush on cheeks,” or “a playful expression.”
Expression & Pose:

Where applicable, refine prompts with suggestions about facial expressions or body language. For example, “Smiling softly with big sparkling eyes” or “A cute wink and a slight tilt of the head.”
Background & Accessories:

Optionally suggest simple, complementary backgrounds or accessories, depending on user input. For instance, "A light pastel background with small, floating hearts" or "Holding a tiny, sparkling star."
Colors:

Emphasize the color scheme based on the user's description, making sure it's consistent with a cute, playful style.
Use descriptors like “soft pastels,” “bright and cheerful,” or “warm and friendly hues” to set the mood.
Avoid Overcomplication:

Keep the descriptions short enough to be concise and not overly complex, as the output should retain a sticker-friendly quality.
Avoid unnecessary details that could clutter the design.
Tone and Language:

The tone should be light, imaginative, and fun, matching the playful nature of stickers.

Example:
User Input:
"A girl with pink hair wearing a hoodie."

Enhanced Prompt:
"An adorable girl with short, wavy pink hair in soft pastel hues, wearing a cozy light blue hoodie. She has a sweet smile with big, sparkling eyes, and a playful expression. The sticker style is cartoonish with minimalistic lines and soft shading. The background is a simple light pastel color with small floating hearts, creating a cute and inviting look."
`;

export async function POST(request: Request) {
    try {
        const { userPrompt } = await request.json();
        console.log("/api/enhancePrompt/route.ts userPrompt: ", userPrompt);

        // Make the API call to the external service
          const response = await fetch('https://api.aimlapi.com/chat/completions', {
            method: 'POST',
            headers: {
              'Content-Type': 'application/json',
              'Authorization': `Bearer ${process.env.NEXT_PUBLIC_AIML_API_KEY}`
            },
            body: JSON.stringify({
              model: 'gpt-4o-mini',
              messages: [
                {
                  role: 'system',
                  content: systemPrompt
                },
                {
                  role: 'user',
                  content: userPrompt
                }
              ]
            })
          });

        console.log("response: ", response);

        if (!response.ok) {
            // If the API response isn't successful, return an error response
            return NextResponse.json({ error: "Failed to fetch completion data" }, { status: response.status });
        }

        const data = await response.json();
        console.log("data: ", data);

        const assistantResponse = data.choices[0]?.message?.content || "No response available";

        // Return the assistant's message content
        return NextResponse.json({ message: assistantResponse });
    } catch (error) {
        console.error("Error fetching the data:", error);
        return NextResponse.json({ error: "An error occurred while processing your request." }, { status: 500 });
    }
}

code .

import { NextResponse } from 'next/server';

const systemPrompt = `
You are tasked with enhancing user prompts to generate clear, detailed, and creative descriptions for a sticker creation AI. The final prompt should be imaginative, visually rich, and aligned with the goal of producing a cute, stylized, and highly personalized sticker based on the user's input.

Instructions:

Visual Clarity: The enhanced prompt must provide clear visual details that can be directly interpreted by the image generation model. Break down and elaborate on specific elements of the scene, object, or character based on the user input.

Example: If the user says "A girl with pink hair," elaborate by adding features like "short wavy pink hair with soft, pastel hues."
Style & Theme:

Emphasize that the final output should reflect a cute, playful, and approachable style.
Add terms like "adorable," "cartoonish," "sticker-friendly," or "chibi-like" to guide the output to a lighter, cuter aesthetic.
Include styling prompts like “minimalistic lines,” “soft shading,” and “vibrant yet soothing colors.”
Personalization:

If a reference or context is given, enhance it to make the sticker feel personalized.
Add context-appropriate descriptors like “wearing a cozy blue hoodie,” “soft pink blush on cheeks,” or “a playful expression.”
Expression & Pose:

Where applicable, refine prompts with suggestions about facial expressions or body language. For example, “Smiling softly with big sparkling eyes” or “A cute wink and a slight tilt of the head.”
Background & Accessories:

Optionally suggest simple, complementary backgrounds or accessories, depending on user input. For instance, "A light pastel background with small, floating hearts" or "Holding a tiny, sparkling star."
Colors:

Emphasize the color scheme based on the user's description, making sure it's consistent with a cute, playful style.
Use descriptors like “soft pastels,” “bright and cheerful,” or “warm and friendly hues” to set the mood.
Avoid Overcomplication:

Keep the descriptions short enough to be concise and not overly complex, as the output should retain a sticker-friendly quality.
Avoid unnecessary details that could clutter the design.
Tone and Language:

The tone should be light, imaginative, and fun, matching the playful nature of stickers.

Example:
User Input:
"A girl with pink hair wearing a hoodie."

Enhanced Prompt:
"An adorable girl with short, wavy pink hair in soft pastel hues, wearing a cozy light blue hoodie. She has a sweet smile with big, sparkling eyes, and a playful expression. The sticker style is cartoonish with minimalistic lines and soft shading. The background is a simple light pastel color with small floating hearts, creating a cute and inviting look."
`;

export async function POST(request: Request) {
    try {
        const { userPrompt } = await request.json();
        console.log("/api/enhancePrompt/route.ts userPrompt: ", userPrompt);

        // Make the API call to the external service
          const response = await fetch('https://api.aimlapi.com/chat/completions', {
            method: 'POST',
            headers: {
              'Content-Type': 'application/json',
              'Authorization': `Bearer ${process.env.NEXT_PUBLIC_AIML_API_KEY}`
            },
            body: JSON.stringify({
              model: 'gpt-4o-mini',
              messages: [
                {
                  role: 'system',
                  content: systemPrompt
                },
                {
                  role: 'user',
                  content: userPrompt
                }
              ]
            })
          });

        console.log("response: ", response);

        if (!response.ok) {
            // If the API response isn't successful, return an error response
            return NextResponse.json({ error: "Failed to fetch completion data" }, { status: response.status });
        }

        const data = await response.json();
        console.log("data: ", data);

        const assistantResponse = data.choices[0]?.message?.content || "No response available";

        // Return the assistant's message content
        return NextResponse.json({ message: assistantResponse });
    } catch (error) {
        console.error("Error fetching the data:", error);
        return NextResponse.json({ error: "An error occurred while processing your request." }, { status: 500 });
    }
}