TosClient 在向服务端发起请求时,默认会在请求 header 里包含签名。SDK 也支持构造带签名的 URL,您可以直接用该 URL 发起 HTTP 请求,也可以将该 URL 共享给第三方实现访问授权。
以下代码展示如何生成用于上传对象的预签名 URL。
import { TosClient, TosClientError, TosServerError } from '@volcengine/tos_harmonyos_sdk'; // 创建客户端 const client = new TosClient({ accessKeyId: "Provide your ak", accessKeySecret: "Provide your sk", securityToken: 'Provide your securityToken', region: "Provide your region", // 填写 Bucket 所在地域。以华北2(北京)为例,"Provide your region" 填写为 cn-beijing。 endpoint: "Provide your endpoint", // 填写域名地址 }); function handleError(error) { if (error instanceof TosClientError) { console.log('Client Err Msg:', error.message); console.log('Client Err Stack:', error.stack); } else if (error instanceof TosServerError) { console.log('Request ID:', error.requestId); console.log('Response Status Code:', error.statusCode); console.log('Response Header:', error.headers); console.log('Response Err Code:', error.code); console.log('Response Err Msg:', error.message); } else { console.log('unexpected exception, message: ', error); } } async function main() { try { // 存储桶名称 const bucketName = 'harmonyos-sdk-test-bucket'; const objectName = 'harmonyos-sdk-test-object'; const res = await client.preSignedURL({ Bucket: bucketName, Key: objectName, }) console.log('PreSignedUrl:', res.SignedUrl); await axios.put<string, AxiosResponse<string, Any>>(res.SignedUrl, 'put-content'); const res2 = await client.headObject({ Bucket: bucketName, Key: objectName, }); console.log('date length: ', res2.ContentLength) } catch (error) { handleError(error); } } main();
以下代码展示如何生成用于下载对象的预签名 URL 。
import { TosClient, TosClientError, TosServerError } from '@volcengine/tos_harmonyos_sdk'; // 创建客户端 const client = new TosClient({ accessKeyId: "Provide your ak", accessKeySecret: "Provide your sk", securityToken: 'Provide your securityToken', region: "Provide your region", // 填写 Bucket 所在地域。以华北2(北京)为例,"Provide your region" 填写为 cn-beijing。 endpoint: "Provide your endpoint", // 填写域名地址 }); function handleError(error) { if (error instanceof TosClientError) { console.log('Client Err Msg:', error.message); console.log('Client Err Stack:', error.stack); } else if (error instanceof TosServerError) { console.log('Request ID:', error.requestId); console.log('Response Status Code:', error.statusCode); console.log('Response Header:', error.headers); console.log('Response Err Code:', error.code); console.log('Response Err Msg:', error.message); } else { console.log('unexpected exception, message: ', error); } } async function main() { try { // 存储桶名称 const bucketName = 'harmonyos-sdk-test-bucket'; const objectName = 'harmonyos-sdk-test-object'; const res = await client.preSignedURL({ Bucket: bucketName, Key: objectName, HttpMethod: 'GET', }) console.log('PreSignedUrl:', res.SignedUrl); const res2 = await axios.get<string, AxiosResponse<string, Any>>(res.SignedUrl); console.log('date length: ', res2.data) } catch (error) { handleError(error); } } main();