#s3 #s3-compatible #amazon-s3 #object-storage #wasabi #gcp #minio

rust-s3-async

Rust library for working with AWS S3 and compatible object storage APIs

2 unstable releases

0.35.0 Jun 5, 2023
0.34.0 Jun 5, 2023

#7 in #wasabi

27 downloads per month

MIT license

180KB
3.5K SLoC

MIT licensed

Note: This repository is a fork of rust-s3 but with a lot of simplifications like only tokio support with async, no blocking implementations, and next to zero macro usage. The only reason this fork exists is because the macro expansions are fairly inaccurate and make development frustrating for me. Plus, its pretty common to use async code when consuming an S3 API, so I don't feel the need of carrying all the "mutual exclusive macro" dead weights around for every minor feature.

rust-s3-async docs

Rust library for working with Amazon S3 or arbitrary S3 compatible APIs, fully compatible with async/await and futures ^0.3.

Intro

Modest interface towards Amazon S3, as well as S3 compatible object storage APIs such as Backblaze B2, Wasabi, Yandex, Minio or Google Cloud Storage. Supports: put, get, list, delete, operations on tags and location, as well as head.

Additionally, a dedicated presign_get Bucket method is available. This means you can upload to S3, and give the link to select people without having to worry about publicly accessible files on S3. This also means that you can give people a PUT presigned URL, meaning they can upload to a specific key in S3 for the duration of the presigned URL.

Quick Start

Read and run examples from the examples folder, make sure you have valid credentials for the variant you're running.

# tokio, default
cargo run --example tokio

# minio
# First, start Minio on port 9000.
AWS_ACCESS_KEY_ID="minioadmin" \
AWS_SECRET_ACCESS_KEY="minioadmin" \
    cargo run --example minio

# r2
cargo run --example r2

# google cloud
cargo run --example google-cloud

Features

There are a lot of various features that enable a wide variety of use cases, refer to s3/Cargo.toml for an exhaustive list. Below is a table of various useful features as well as a short description for each.

  • default - tokio runtime and a native-tls implementation
  • fail-on-err - panic on any error
  • no-verify-ssl - disable SSL verification for endpoints, useful for custom regions

Path or subdomain style URLs and headers

Bucket struct provides constructors for path-style paths, subdomain style is the default. Bucket exposes methods for configuring and accessing path-style configuration.

Buckets

create async
delete async
list async
exists async

Presign

POST presign_put
PUT presign_put
GET presign_get
DELETE presign_delete

GET

There are a few different options for getting an object and methods are generic over tokio::io::AsyncWriteExt.

async/sync/async-blocking get_object
async/sync/async-blocking get_object_stream
async/sync/async-blocking get_object_to_writer

PUT

Each GET method has a PUT companion, and tokio methods are generic over tokio::io::AsyncReadExt.

async/sync/async-blocking put_object
async/sync/async-blocking put_object_with_content_type
async/sync/async-blocking put_object_stream

List

async/sync/async-blocking list

DELETE

async/sync/async-blocking delete_object

Location

async/sync/async-blocking location

Tagging

async/sync/async-blocking put_object_tagging
async/sync/async-blocking get_object_tagging

Head

async/sync/async-blocking head_object

Usage (in Cargo.toml)

[dependencies]
rust-s3-async = "0.34.0"

Dependencies

~14–29MB
~441K SLoC