将 Cloudinary 集成到 Nextjs 应用程序中

php中文网 2024-10-15 11:54:15

了解 cloudinary 及其定价。

1. 创建一个cloudinary账户

在 cloudinary 注册并创建一个新帐户（如果您没有）。

2.安装cloudinary sdk

您可以使用npm或yarn安装cloudinary sdk：

npm install cloudinary

3. 配置cloudinary

您可以创建一个配置文件来保存您的 cloudinary 凭据。将它们保存在环境变量中是一个很好的做法。

在项目根目录中创建一个 .env.local 文件并添加您的 cloudinary 凭据：

cloudinary_url=cloudinary://<api_key>:<api_secret>@<cloud_name></cloud_name></api_secret></api_key>

4. 在您的应用程序中设置 cloudinary

// utils/cloudinary.js
import { v2 as cloudinary } from 'cloudinary';

cloudinary.config({
  cloud_name: process.env.cloudinary_cloud_name,
  api_key: process.env.cloudinary_api_key,
  api_secret: process.env.cloudinary_api_secret,
});

export const uploadimage = async (file) =&gt; {
  try {
    const result = await cloudinary.uploader.upload(file, {
      folder: 'your_folder_name', // optional
    });
    return result.secure_url; // return the url of the uploaded image
  } catch (error) {
    console.error('cloudinary upload error:', error);
    throw new error('upload failed');
  }
};

5. 使用上传功能

// pages/api/upload.js
import { uploadimage } from '../../utils/cloudinary';

export default async function handler(req, res) {
  if (req.method === 'post') {
    const { file } = req.body; // assume you're sending a file in the body

    try {
      const url = await uploadimage(file);
      res.status(200).json({ url });
    } catch (error) {
      res.status(500).json({ error: error.message });
    }
  } else {
    res.setheader('allow', ['post']);
    res.status(405).end(`method ${req.method} not allowed`);
  }
}

6. 从前端上传

// components/ImageUpload.js
import { useState } from 'react';

const ImageUpload = () =&gt; {
  const [file, setFile] = useState(null);
  const [imageUrl, setImageUrl] = useState('');

  const handleFileChange = (event) =&gt; {
    setFile(event.target.files[0]);
  };

  const handleSubmit = async (event) =&gt; {
    event.preventDefault();
    const formData = new FormData();
    formData.append('file', file);

    const res = await fetch('/api/upload', {
      method: 'POST',
      body: formData,
    });

    const data = await res.json();
    if (data.url) {
      setImageUrl(data.url);
    } else {
      console.error('Upload failed:', data.error);
    }
  };

  return (