Centeva.ObjectStorage.GCP 4.0.0

Centeva Object Storage Library

Centeva.ObjectStorage is a .NET 6+ / .NET Standard library that provides a generic interface to local or cloud-hosted object ("blob") storage providers.

Supported providers are:

• Amazon AWS S3 (and anything compatible with its API such as MinIO
• Google Cloud Storage
• Azure Blob Storage
• Local disk

Built With

• .NET 8

Getting Started

Import the Centeva.ObjectStorage package to your projects where needed, along with the desired provider sub-packages:

• Centeva.ObjectStorage.GCP
• Centeva.ObjectStorage.AWS
• Centeva.ObjectStorage.Azure.Blob

Create an instance of StorageFactory and register the providers you require, then build an instance of IObjectStorage using a connection string:

var factory = new StorageFactory()
    .UseAwsS3Storage()
    .UseAzureBlobStorage()
    .UseGoogleCloudStorage();

var storage = factory.GetConnection("provider://key1=value1;key2=value2");

In modern .NET applications, you will likely do this as part of service registration in Program.cs, obtaining the connection string from configuration.

In some cases you may prefer to instantiate storage providers directly rather than using connection strings. Each provider's constructor allows the needed parameters to be provided.

Examples

// Local Disk
var storageFromConnectionString = factory.GetConnection("disk://path=C:\\temp\\files");
var storageFromConstructor = new DiskObjectStorage("C:\\temp\\files");

// AWS S3
var storageFromConnectionString = factory.GetConnection("aws.s3://bucket=myfiles;accessKey=mykey;secretKey=secret");
var storageFromConstructor = new AwsS3ObjectStorage("myfiles", "regionName", "endpointUrl", "accessKey", "secret");

// Azure Blob Storage
var storageFromConnectionString = factory.GetConnection("azure.blob://container=myfiles;accountName=myaccount;accountKey=myAccountKey");
var storageFromConstructor = new AzureBlobObjectStorage("accountName", "accountKey", "containerName");

// Google Cloud Storage
var storageFromConnectionString = factory.GetConnection("google.storage://bucket=myfiles;credentialsFilePath=/path/to/creds.json");
var storageFromConnectionString2 = factory.GetConnection("google.storage://bucket=myfiles;credentials=base64EncodedCredentialsJson");
var storageFromConstructor = GoogleObjectStorage.CreateFromCredentialsFile("bucketName", "/path/to/creds.json");
var storageFromConstructor2 = GoogleObjectStorage.CreateFromCredentialsJson("bucketName", "credentialsJsonString");

// MinIO (using AWS S3 provider)
var storageFromConnectionString = factory.GetConnection("aws.s3://endpoint=http://localhost:9000;region=us-east-1;bucket=myfiles;accessKey=myAccount;secretKey=myPassword");
var storageFromConstructor = new AwsS3ObjectStorage("myfiles", "us-east-1", "http://localhost:9000", "myAccount", "myPassword");

TODO: Write API documentation

Contributing

Please use a Pull Request to suggest changes to this library. As this is a shared library, strict semantic versioning rules should be followed to avoid unexpected breaking changes.

Running Tests

From Windows, use the dotnet test command, or your Visual Studio Test Explorer.

Deployment

This library is versioned by GitVersion. Create a Git tag for an official release (e.g., "v1.0.0"). Version numbers can be incremented via commit message using the GitVersion approaches.