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# BLOB Storing Aws Provider
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BLOB Storing Aws Provider can store BLOBs in [Amazon Simple Storage Service](https://aws.amazon.com/s3/).
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> Read the [BLOB Storing document](Blob-Storing.md) to understand how to use the BLOB storing system. This document only covers how to configure containers to use a Aws BLOB as the storage provider.
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## Installation
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Use the ABP CLI to add [Volo.Abp.BlobStoring.Aws](https://www.nuget.org/packages/Volo.Abp.BlobStoring.Aws) NuGet package to your project:
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* Install the [ABP CLI](https://docs.abp.io/en/abp/latest/CLI) if you haven't installed before.
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* Open a command line (terminal) in the directory of the `.csproj` file you want to add the `Volo.Abp.BlobStoring.Aws` package.
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* Run `abp add-package Volo.Abp.BlobStoring.Aws` command.
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If you want to do it manually, install the [Volo.Abp.BlobStoring.Aws](https://www.nuget.org/packages/Volo.Abp.BlobStoring.Aws) NuGet package to your project and add `[DependsOn(typeof(AbpBlobStoringAwsModule))]` to the [ABP module](Module-Development-Basics.md) class inside your project.
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## Configuration
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Configuration is done in the `ConfigureServices` method of your [module](Module-Development-Basics.md) class, as explained in the [BLOB Storing document](Blob-Storing.md).
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**Example: Configure to use the Aws storage provider by default**
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````csharp
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Configure<AbpBlobStoringOptions>(options =>
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{
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options.Containerscontainer.UseAws(Aws =>
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{
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Aws.AccessKeyId = "your Aws access key id";
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Aws.SecretAccessKey = "your Aws access key secret";
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Aws.UseCredentials = "set true to use credentials";
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Aws.UseTemporaryCredentials = "set true to use temporary credentials";
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Aws.UseTemporaryFederatedCredentials = "set true to use temporary federated credentials";
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Aws.ProfileName = "the name of the profile to get credentials from";
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Aws.ProfilesLocation = "the path to the aws credentials file to look at";
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Aws.Region = "the system name of the service";
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Aws.Name = "the name of the federated user";
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Aws.Policy = "policy";
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Aws.DurationSeconds = "expiration date";
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Aws.ContainerName = "your Aws container name";
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Aws.CreateContainerIfNotExists = false;
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});
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});
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````
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> See the [BLOB Storing document](Blob-Storing.md) to learn how to configure this provider for a specific container.
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### Options
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* **AccessKeyId** (string): AWS Access Key ID.
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* **SecretAccessKey** (string): AWS Secret Access Key.
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* **UseCredentials** (bool): Use [credentials](https://docs.aws.amazon.com/AmazonS3/latest/dev/AuthUsingAcctOrUserCredentials.html) to access AWS services,default : `false`.
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* **UseTemporaryCredentials** (bool): Use [temporary credentials](https://docs.aws.amazon.com/AmazonS3/latest/dev/AuthUsingTempSessionToken.html) to access AWS services,default : `false`.
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* **UseTemporaryFederatedCredentials** (bool): Use [federated user temporary credentials](https://docs.aws.amazon.com/AmazonS3/latest/dev/AuthUsingTempFederationToken.html) to access AWS services, default : `false`.
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* **ProfileName** (string): The [name of the profile]((https://docs.aws.amazon.com/sdk-for-net/v3/developer-guide/net-dg-config-creds.html)) to get credentials from.
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* **ProfilesLocation** (string): The path to the aws credentials file to look at.
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* **Region** (string): The system name of the service.
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* **Policy** (string): An IAM policy in JSON format that you want to use as an inline session policy.
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* **DurationSeconds** (int): Validity period(s) of a temporary access certificate,minimum is 900 and the maximum is 3600. **note**: Using subaccounts operated OSS,if the value is 0.
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* **ContainerName** (string): You can specify the container name in Aws. If this is not specified, it uses the name of the BLOB container defined with the `BlogContainerName` attribute (see the [BLOB storing document](Blob-Storing.md)). Please note that Aws has some **rules for naming containers**. A container name must be a valid DNS name, conforming to the [following naming rules](https://docs.aws.amazon.com/AmazonS3/latest/dev/BucketRestrictions.html):
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* Bucket names must be between **3** and **63** characters long.
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* Bucket names can consist only of **lowercase** letters, numbers, dots (.), and hyphens (-).
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* Bucket names must begin and end with a letter or number.
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* Bucket names must not be formatted as an IP address (for example, 192.168.5.4).
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* Bucket names can't begin with **xn--** (for buckets created after February 2020).
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* Bucket names must be unique within a partition.
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* Buckets used with Amazon S3 Transfer Acceleration can't have dots (.) in their names. For more information about transfer acceleration, see Amazon S3 Transfer Acceleration.
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* **CreateContainerIfNotExists** (bool): Default value is `false`, If a container does not exist in Aws, `AwsBlobProvider` will try to create it.
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## Aws Blob Name Calculator
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Aws Blob Provider organizes BLOB name and implements some conventions. The full name of a BLOB is determined by the following rules by default:
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* Appends `host` string if [current tenant](Multi-Tenancy.md) is `null` (or multi-tenancy is disabled for the container - see the [BLOB Storing document](Blob-Storing.md) to learn how to disable multi-tenancy for a container).
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* Appends `tenants/<tenant-id>` string if current tenant is not `null`.
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* Appends the BLOB name.
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## Other Services
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* `AwsBlobProvider` is the main service that implements the Aws BLOB storage provider, if you want to override/replace it via [dependency injection](Dependency-Injection.md) (don't replace `IBlobProvider` interface, but replace `AwsBlobProvider` class).
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* `IAwsBlobNameCalculator` is used to calculate the full BLOB name (that is explained above). It is implemented by the `DefaultAwsBlobNameCalculator` by default.
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* `IAmazonS3ClientFactory` is used create OSS client. It is implemented by the `DefaultAmazonS3ClientFactory` by default. You can override/replace it,if you want customize.
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# BLOB Storing Aws提供程序
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BLOB存储Aws提供程序可以将BLOB存储在[Amazon Simple Storage Service](https://aws.amazon.com/cn/s3/)中.
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> 阅读[BLOB存储文档](Blob-Storing.md)了解如何使用BLOB存储系统. 本文档仅介绍如何为容器配置Aws提供程序.
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## 安装
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使用ABP CLI添加[Volo.Abp.BlobStoring.Aws](https://www.nuget.org/packages/Volo.Abp.BlobStoring.Aws)NuGet包到你的项目:
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* 安装 [ABP CLI](https://docs.abp.io/en/abp/latest/CLI), 如果你还没有安装.
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* 在要添加 `Volo.Abp.BlobStoring.Aws` 包的 `.csproj` 文件目录打开命令行.
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* 运行 `Volo.Abp.BlobStoring.Aws` 命令.
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如果要手动安装,在你的项目中安装 `Volo.Abp.BlobStoring.Aws` NuGet包然后将`[DependsOn(typeof(AbpBlobStoringAwsModule))]`添加到项目内的[ABP模块](Module-Development-Basics.md)类中.
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## 配置
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如同[BLOB存储文档](Blob-Storing.md)所述,配置是在[模块](Module-Development-Basics.md)类的 `ConfigureServices` 方法完成的.
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**示例: 配置为默认使用Aws存储提供程序**
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````csharp
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Configure<AbpBlobStoringOptions>(options =>
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{
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options.Containerscontainer.UseAws(Aws =>
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{
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Aws.AccessKeyId = "your Aws access key id";
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Aws.SecretAccessKey = "your Aws access key secret";
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Aws.UseCredentials = "set true to use credentials";
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Aws.UseTemporaryCredentials = "set true to use temporary credentials";
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Aws.UseTemporaryFederatedCredentials = "set true to use temporary federated credentials";
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Aws.ProfileName = "the name of the profile to get credentials from";
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Aws.ProfilesLocation = "the path to the aws credentials file to look at";
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Aws.Region = "the system name of the service";
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Aws.Name = "the name of the federated user";
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Aws.Policy = "policy";
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Aws.DurationSeconds = "expiration date";
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Aws.ContainerName = "your Aws container name";
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Aws.CreateContainerIfNotExists = false;
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});
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});
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````
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> 参阅[BLOB存储文档](Blob-Storing.md) 学习如何为指定容器配置提供程序.
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### 选项
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* **AccessKeyId** (string): AWS Access Key ID.
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* **SecretAccessKey** (string): AWS Secret Access Key.
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* **UseCredentials** (bool): 使用[本地凭证](https://docs.aws.amazon.com/zh_cn/AmazonS3/latest/dev/AuthUsingAcctOrUserCredentials.html)访问AWS服务,默认: `false`.
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* **UseTemporaryCredentials** (bool): 使用[临时凭证](https://docs.aws.amazon.com/zh_cn/AmazonS3/latest/dev/AuthUsingTempSessionToken.html)访问AWS服务,默认: `false`.
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* **UseTemporaryFederatedCredentials** (bool): 使用[联合身份用户临时凭证](https://docs.aws.amazon.com/zh_cn/AmazonS3/latest/dev/AuthUsingTempFederationToken.html)访问AWS服务, 默认: `false`.
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* **ProfileName** (string): [本地凭证配置文件](https://docs.aws.amazon.com/zh_cn/sdk-for-net/v3/developer-guide/net-dg-config-creds.html)名称.
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* **ProfilesLocation** (string): 本地配置文件位置.
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* **Region** (string): 服务的地区名称.
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* **Policy** (string): JSON格式的IAM策略.
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* **DurationSeconds** (int): 设置临时访问凭证的有效期,单位是s,最小为900,最大为129600.
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* **ContainerName** (string): 你可以在Aws中指定容器名称. 如果没有指定它将使用 `BlogContainerName` 属性定义的BLOB容器的名称(请参阅[BLOB存储文档](Blob-Storing.md)). 请注意Aws有一些**命名容器的规则**,容器名称必须是有效的DNS名称,[符合以下命名规则](https://docs.aws.amazon.com/AmazonS3/latest/dev/BucketRestrictions.html):
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* Bucket名称必须介于 3 到 63 个字符之间.
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* Bucket名称只能由小写字母、数字、句点 (.) 和连字符 (-) 组成.
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* Bucket名称必须以字母或数字开头和结尾.
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* Bucket名称不能是ip (例如, 192.168.5.4).
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* Bucket名称不能以 **xn--** 开头, (对于2020年2月以后创建的 Bucket).
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* Bucket名称在分区中必须唯一 .
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* Bucket 与 Amazon S3 Transfer Acceleration 一起使用时名称中不能有句点 (.).
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* **CreateContainerIfNotExists** (bool): 默认值为 `false`, 如果Aws中不存在容器, `AwsBlobProvider` 将尝试创建它.
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## Aws BLOB 名称计算器
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Aws BLOB提供程序组织BLOB名称并实现一些约定. 默认情况下BLOB的全名由以下规则确定:
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* 如果当前租户为 `null`(或容器禁用多租户 - 请参阅[BLOB存储文档](Blob-Storing.md) 了解如何禁用容器的多租户),则追加 `host` 字符串.
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* 如果当前租户不为 `null`,则追加 `tenants/<tenant-id>` 字符串.
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* 追加 BLOB 名称.
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## 其他服务
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* `AwsBlobProvider` 是实现Aws BLOB存储提供程序的主要服务,如果你想要通过[依赖注入](Dependency-Injection.md)覆盖/替换它(不要替换 `IBlobProvider` 接口,而是替换 `AwsBlobProvider` 类).
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* `IAwsBlobNameCalculator` 服务用于计算文件路径. 默认实现是 `DefaultAwsBlobNameCalculator`. 如果你想自定义文件路径计算,可以替换/覆盖它.
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* `IAmazonS3ClientFactory` 服务用于生成AWS S3客户端. 默认实现是 `DefaultAmazonS3ClientFactory` . 如果你想自定义AWS S3客户端生成,可以替换/覆盖它.
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