elaunira-r2index 0.4.0

Python library for uploading files to R2 and registering them with the r2index API

elaunira-r2index

Python library for uploading and downloading files to/from Cloudflare R2 with the r2index API.

Installation

pip install elaunira-r2index

Usage

Sync Client

from elaunira.r2index import R2IndexClient

client = R2IndexClient(
    index_api_url="https://r2index.example.com",
    index_api_token="your-bearer-token",
    r2_access_key_id="your-r2-access-key-id",
    r2_secret_access_key="your-r2-secret-access-key",
    r2_endpoint_url="https://your-account-id.r2.cloudflarestorage.com",
)

# Upload and register a file
record = client.upload(
    bucket="my-bucket",
    local_path="./myfile.zip",
    category="software",
    entity="myapp",
    remote_path="/releases/myapp",
    remote_filename="myapp.zip",
    remote_version="v1",
    tags=["release", "stable"],
)

# Download a file and record the download
# IP address is auto-detected, user agent defaults to "elaunira-r2index/<version>"
path, record = client.download(
    bucket="my-bucket",
    object_id="/releases/myapp/v1/myapp.zip",
    destination="./downloads/myfile.zip",
)

Async Client

from elaunira.r2index import AsyncR2IndexClient

async with AsyncR2IndexClient(
    index_api_url="https://r2index.example.com",
    index_api_token="your-bearer-token",
    r2_access_key_id="your-r2-access-key-id",
    r2_secret_access_key="your-r2-secret-access-key",
    r2_endpoint_url="https://your-account-id.r2.cloudflarestorage.com",
) as client:
    # Upload
    record = await client.upload(
        bucket="my-bucket",
        local_path="./myfile.zip",
        category="software",
        entity="myapp",
        remote_path="/releases/myapp",
        remote_filename="myapp.zip",
        remote_version="v1",
        tags=["release", "stable"],
    )

    # Download
    path, record = await client.download(
        bucket="my-bucket",
        object_id="/releases/myapp/v1/myapp.zip",
        destination="./downloads/myfile.zip",
    )

Transfer Configuration

Control multipart transfer settings with R2TransferConfig:

from elaunira.r2index import R2IndexClient, R2TransferConfig

client = R2IndexClient(
    index_api_url="https://r2index.example.com",
    index_api_token="your-bearer-token",
    r2_access_key_id="your-r2-access-key-id",
    r2_secret_access_key="your-r2-secret-access-key",
    r2_endpoint_url="https://your-account-id.r2.cloudflarestorage.com",
)

# Custom transfer settings
transfer_config = R2TransferConfig(
    multipart_threshold=100 * 1024 * 1024,  # 100MB (default)
    multipart_chunksize=32 * 1024 * 1024,   # 32MB chunks
    max_concurrency=64,                      # 64 parallel threads
    use_threads=True,                        # Enable threading (default)
)

path, record = client.download(
    bucket="my-bucket",
    object_id="/data/files/v2/largefile.zip",
    destination="./downloads/largefile.zip",
    transfer_config=transfer_config,
)

Default max_concurrency is 2x the number of CPU cores (minimum 4).

Progress Tracking

def on_progress(bytes_transferred: int) -> None:
    print(f"Downloaded: {bytes_transferred / 1024 / 1024:.1f} MB")

path, record = client.download(
    bucket="my-bucket",
    object_id="/releases/myapp/v1/myapp.zip",
    destination="./downloads/myfile.zip",
    progress_callback=on_progress,
)

License

MIT