82 lines
3.2 KiB
Markdown
82 lines
3.2 KiB
Markdown
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## 快速入门
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微信小程序 SDK for [腾讯云对象存储服务](https://cloud.tencent.com/product/cos)
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### 一、前期准备
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1. 到 (COS对象存储控制台)[https://console.cloud.tencent.com/cos4] 创建存储桶,得到 Bucket(存储桶名称) 和 Region(地域名称)
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2. 到 (控制台密钥管理)[https://console.cloud.tencent.com/capi] 获取您的项目 SecretId 和 SecretKey
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### 二、计算签名
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由于签名计算放在前端会暴露 SecretId 和 SecretKey,我们把签名计算过程放在后端实现,前段通过 ajax 向后端获取签名结果,正式部署时请再后端加一层自己网站本身的权限检验。
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这里提供 [PHP 和 NodeJS 的签名例子](https://github.com/tencentyun/cos-js-sdk-v5/blob/master/server/),其他语言,请参照对应的 [XML SDK](https://cloud.tencent.com/document/product/436/6474)
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### 三、上传例子
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1. 把 demo/lib/cos-wx-sdk-v5.js 复制到自己小程序项目代码里,在需要上传文件的地方贴以下代码
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```javascript
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// 存储桶名称,由bucketname-appid 组成,appid必须填入,可以在COS控制台查看存储桶名称。 https://console.cloud.tencent.com/cos5/bucket
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var Bucket = 'test-1250000000';
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// 存储桶Region可以在COS控制台指定存储桶的概览页查看 https://console.cloud.tencent.com/cos5/bucket/
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// 关于地域的详情见 https://cloud.tencent.com/document/product/436/6224
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var Region = 'ap-guangzhou';
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// 初始化实例
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var cos = new COS({
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getAuthorization: function (options, callback) {
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// 异步获取签名
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wx.request({
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url: 'https://example.com/sts.php', // 步骤二提供的签名接口
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data: {
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Method: options.Method,
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Key: options.Key
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},
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dataType: 'text',
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success: function (result) {
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var data = result.data;
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callback({
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TmpSecretId: data.credentials && data.credentials.tmpSecretId,
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TmpSecretKey: data.credentials && data.credentials.tmpSecretKey,
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XCosSecurityToken: data.credentials && data.credentials.sessionToken,
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ExpiredTime: data.expiredTime,
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});
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}
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});
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}
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});
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// 选择文件
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wx.chooseImage({
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count: 1, // 默认9
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sizeType: ['original'], // 可以指定是原图还是压缩图,默认用原图
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sourceType: ['album', 'camera'], // 可以指定来源是相册还是相机,默认二者都有
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success: function (res) {
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var filePath = res.tempFiles[0].path;
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var filename = filePath.substr(filePath.lastIndexOf('/') + 1);
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cos.postObject({
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Bucket: Bucket,
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Region: Region,
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Key: filename,
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FilePath: filePath,
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onProgress: function (info) {
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console.log(JSON.stringify(info));
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}
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}, function (err, data) {
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console.log(err || data);
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});
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}
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});
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```
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## 说明文档
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[使用例子](demo/demo-sdk.js)
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[快速入门](https://cloud.tencent.com/document/product/436/31953)
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[接口文档](https://cloud.tencent.com/document/product/436/31953)
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