0860d7b8c2
后端接口是 POST /files/complete，不是 confirm-upload Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
63 lines
2.0 KiB
Swift
63 lines
2.0 KiB
Swift
import Foundation
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import UIKit
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@MainActor
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class FileUploadService {
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static let shared = FileUploadService()
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private let client = APIClient.shared
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/// 上传图片到 COS 并返回文件 ID
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func uploadImage(_ image: UIImage, filename: String = "avatar.jpg") async throws -> String {
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// 压缩为 JPEG，最大 512KB
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guard let imageData = image.jpegData(compressionQuality: 0.7) else {
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throw FileUploadError.compressFailed
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}
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// 请求预签名上传 URL
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let urlReq = FileUploadUrlRequest(
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filename: filename,
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mimeType: "image/jpeg",
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sizeBytes: imageData.count
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)
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let urlResp: FileUploadUrlResponse = try await client.request(
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"/files/upload-url", method: "POST", body: urlReq
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)
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// 直接 PUT 到 COS
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var request = URLRequest(url: URL(string: urlResp.uploadUrl)!)
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request.httpMethod = "PUT"
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request.setValue("image/jpeg", forHTTPHeaderField: "Content-Type")
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request.httpBody = imageData
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let (_, response) = try await URLSession.shared.data(for: request)
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guard let httpResp = response as? HTTPURLResponse, httpResp.statusCode == 200 else {
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throw FileUploadError.uploadFailed
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}
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// 确认上传
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let confirmResp: FileConfirmUploadResponse = try await client.request(
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"/files/complete", method: "POST",
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body: FileConfirmUploadRequest(objectKey: urlResp.objectKey, checksum: nil)
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)
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return confirmResp.id
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}
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/// 获取文件下载 URL
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func getDownloadUrl(fileId: String) async throws -> String {
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let detail: FileDetailResponse = try await client.request("/files/\(fileId)")
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return detail.downloadUrl
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}
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}
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enum FileUploadError: LocalizedError {
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case compressFailed
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case uploadFailed
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var errorDescription: String? {
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switch self {
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case .compressFailed: return "图片压缩失败"
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case .uploadFailed: return "上传失败，请重试"
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}
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}
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}
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