I'm having a bit of trouble with using Azure storage. I have an implementation at the moment which is fine but I want to expand it so that I am able to use multiple storage accounts/containers in one solution. I can't get my head around how to do that and still allow for dependency injection. I also need to be able to pass in settings which define the connection string and container name
This is how I'm doing it at the moment:
builder.Services.AddSingleton<IAzureStorageClient, AzureStorageClient>();
builder.Services.Configure<AzureStorageSettings>(configuration.GetSection("AzureStorageSettings"));
and then in the constructor
public AzureStorageClient(IOptions<AzureStorageSettings> options)
{
var azureStorageSettings = options.Value;
var cloudStorageAccount = GetCloudStorageAccount(azureStorageSettings.ConnectionString);
_blobClient = cloudStorageAccount.CreateCloudBlobClient();
_blobContainer = GetBlobContainer(azureStorageSettings.ContainerName);
}
I've read a lot of similar posts which mention using named registrations but I am using the built in IoC container and it doesn't allow for that. I've also seen posts saying to use a factory which looks good but I am hoping to package this logic and share it among different solutions and the factory solution would require a lot of configuration which I would like to avoid to make the package easy to consume.
Update: I made the settings an interface to force it to be implemented each time it is required and I used the generic T to pass that into my storage client as follows:
public sealed class AzureStorageClient<T> : IAzureStorageClient<T> where T : class, IAzureStorageSettings, new()
public AzureStorageClient(IOptions<T> options)
{
var azureStorageSettings = options.Value;
var cloudStorageAccount = GetCloudStorageAccount(azureStorageSettings.ConnectionString);
_blobClient = cloudStorageAccount.CreateCloudBlobClient();
_blobContainer = GetBlobContainer(azureStorageSettings.ContainerName);
}
Then it could be injected like this:
builder.Services.AddSingleton<IAzureStorageClient<SpecificStorageSettings>, AzureStorageClient<SpecificStorageSettings>>();
Just an example, you can use settings like this:
Settings.cs
using System;
using System.Collections.Generic;
using System.Text;
namespace UseDifferentSettings
{
public abstract class Settings
{
public abstract string connectingstring {
get;
}
public abstract string containername {
get;
}
public abstract string blobname {
get;
}
}
}
Setting1.cs
using System;
using System.Collections.Generic;
using System.Text;
namespace UseDifferentSettings
{
class Setting1 : Settings
{
string _connectingstring = "DefaultEndpointsProtocol=https;AccountName=xxx;EndpointSuffix=core.windows.net";
string _containername = "video1";
string _blobname = "test.txt";
public override string connectingstring
{
get { return _connectingstring; }
}
public override string containername
{
get { return _containername; }
}
public override string blobname
{
get { return _blobname; }
}
}
}
Setting2.cs
using System;
using System.Collections.Generic;
using System.Text;
namespace UseDifferentSettings
{
class Setting2 : Settings
{
private string _connectingstring = "DefaultEndpointsProtocol=https;AccountName=xxx;EndpointSuffix=core.windows.net";
private string _containername = "test";
private string _blobname = "test.txt";
public override string connectingstring
{
get { return _connectingstring; }
}
public override string containername
{
get { return _containername; }
}
public override string blobname
{
get { return _blobname; }
}
}
}
UploadToStorage.cs
using Azure.Storage.Blobs;
using System;
using System.Collections.Generic;
using System.IO;
using System.Text;
namespace UseDifferentSettings
{
public class UploadToStorage
{
Settings setting;
public UploadToStorage(Settings setting) {
this.setting = setting;
}
public void GoUpload() {
string connectingstring = setting.connectingstring;
string containername = setting.containername;
string blobname = setting.blobname;
string filecontent = "This is my test file content";
byte[] array = Encoding.ASCII.GetBytes(filecontent);
MemoryStream filestream = new MemoryStream(array);
BlobServiceClient blobServiceClient = new BlobServiceClient(connectingstring);
BlobContainerClient containerClient = blobServiceClient.GetBlobContainerClient(containername);
BlobClient blobClient = containerClient.GetBlobClient(blobname);
blobClient.Upload(filestream);
}
}
}
Program.cs(The main method class)
using System;
namespace UseDifferentSettings
{
class Program
{
static void Main(string[] args)
{
Settings setting1 = new Setting1();
Settings setting2 = new Setting2();
UploadToStorage uploadtostorage = new UploadToStorage(setting1);
uploadtostorage.GoUpload();
Console.WriteLine("Hello World!");
}
}
}
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.