#鸿蒙通关秘籍#HarmonyOS Next中处理文件上传成功后的回调机制是怎样的？

处理文件上传成功的回调信息，用于后续的业务逻辑，比如显示上传结果或者存储上传的文件URL：

1. 上传中，实时获取上传进度。
2. 上传成功，处理服务器返回的响应。
3. 上传失败，给予用户提示信息。

async function uploadImage(filePath) {
    const uri = `internal://cache/${filePath}`;
    const uploadConfig = {
        url: 'http://your-upload-url.com',
        method: "POST",
        files: [{ filename: filePath, name: "file", uri, type: "image/jpeg" }],
        data: []
    };

    const uploadTask = await request.uploadFile(this.context, uploadConfig);

    uploadTask.on('progress', (size, total) => {
        console.log(`Upload progress: ${size}/${total}`);
    });

    uploadTask.on('headerReceive', (data) => {
        console.info(`Upload success: ${JSON.stringify(data)}`);
    });

    uploadTask.on('complete', (taskStates) => {
        console.info(`Upload completed`);
    });

    uploadTask.on('fail', (taskStates) => {
        console.error(`Upload failed: ${JSON.stringify(taskStates)}`);
    });
}