compressimg / index.js
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Update index.js
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const express = require('express');
const fetch = require('node-fetch');
const FormData = require('form-data');
const sharp = require('sharp');
const app = express();
app.get('/resize', async (req, res) => {
const imageUrl = req.query.q;
const size = parseInt(req.query.s, 10) || 100; // 默认值为 100
if (!imageUrl) {
console.error('没有提供图像 URL');
return res.status(400).send('没有提供图像 URL');
}
if (isNaN(size) || size <= 0) {
console.error('无效的大小参数');
return res.status(400).send('无效的大小参数');
}
try {
const response = await fetch(imageUrl);
if (!response.ok) {
throw new Error(`获取图像失败: ${response.statusText}`);
}
const imageBuffer = await response.buffer();
console.log('原始图像大小:', imageBuffer.byteLength);
// 使用 sharp 库来调整图像大小
const resizedImageBuffer = await sharp(imageBuffer).resize(size).toBuffer();
console.log('压缩后的图像大小:', resizedImageBuffer.byteLength);
// 将压缩后的图像转换为 Base64 编码的数据
const base64Image = resizedImageBuffer.toString('base64');
// 创建一个 FormData 对象并添加压缩后的图像
// const formData = new FormData();
// formData.append('file', resizedImageBuffer, { filename: 'compressed.jpg', contentType: 'image/jpeg' });
// 使用新的 API 地址和方法上传文件
// const uploadResponse = await fetch('https://ours.pages.dev/upload', {
// method: 'POST',
// body: formData
// });
// if (!uploadResponse.ok) {
// throw new Error(`上传图像失败: ${uploadResponse.statusText}`);
// }
// const uploadResult = await uploadResponse.text();
// console.log('上传结果:', uploadResult);
// Parse the JSON response and construct the full URL
// const uploadResultJson = JSON.parse(uploadResult);
// const fullUrl = `https://ours.pages.dev${uploadResultJson[0].src}`;
res.setHeader('Content-Type', 'text/plain');
res.setHeader('Access-Control-Allow-Origin', '*');
res.setHeader('Access-Control-Allow-Methods', 'GET, POST, OPTIONS');
res.setHeader('Access-Control-Allow-Headers', 'Content-Type');
res.setHeader('Access-Control-Max-Age', '86400');
res.send(base64Image);
} catch (error) {
console.error('压缩图像时出错:', error);
res.status(500).send('压缩图像时出错');
}
});
const PORT = process.env.PORT || 7860;
app.listen(PORT, () => {
console.log(`Server is running on port ${PORT}`);
});