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An emulator for the Backblaze B2 Cloud Storage service. The goal of the project is to mimic the B2 API to provide a tool that can be used to test applications built to use B2.

Note: This project is currently in an early state. There is little coverage of the B2 API.

• b2_upload_file - "fileInfo" ignored, error codes don't match B2 API
• b2_download_file_by_id - "fileInfo" ignored, error codes don't match B2 API

The latest version is published at the mwelke/b2-emulator Docker repository.

To run the image locally:

docker run --name my-b2-emulator -p 5000:5000 mwelke/b2-emulator:latest

Set the PROVIDER environment variable to choose which provider is loaded at runtime. Options are:

• MEMORY - An in memory provider. Stores the files in a concurrent dictionary data structure in memory until the process exits. Warning: Files will not be persisted once process exits

• The .NET SDK must be installed.

1. Run dotnet build from the project/solution directory.

1. Run dotnet test from the test/B2Emulator.Tests subdirectory.

From the src/B2Emulator subdirectory, run dotnet run with the following environment variables set:

• ASPNETCORE_ENVIRONMENT - Development
• ASPNETCORE_URLS - http://0.0.0.0:DESIRED_PORT
• B2_CLOUD_STORAGE_ACCOUNT_ID - ACCOUNT_ID
• B2_CLOUD_STORAGE_BUCKET_ID - BUCKET_ID

Note that the B2 credentials are used to fake authorization endpoints and bucket behavior. They are not transmitted.