Supabase Swift SDK

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Libraries

Quick Start

Requirements

• iOS 16.0+ / macOS 13.0+ / tvOS 16+ / watchOS 9+ / visionOS 1+
• Xcode 26.0+
• Swift 6.2+

[!IMPORTANT] Check the Support Policy to learn when dropping Xcode, Swift, and platform versions will not be considered a breaking change.

Installation

Add supabase-swift as a Swift Package Manager dependency:

let package = Package(
    ...
    dependencies: [
        .package(
            url: "https://github.com/supabase/supabase-swift.git",
            from: "2.0.0"
        ),
    ],
    targets: [
        .target(
            name: "YourTargetName",
            dependencies: [
                .product(name: "Supabase", package: "supabase-swift")
            ]
        )
    ]
)

If you're using Xcode, use this guide to add supabase-swift to your project. Use https://github.com/supabase/supabase-swift.git for the URL when Xcode asks.

You can also add individual libraries (Auth, Realtime, Storage, PostgREST, Functions) instead of the full Supabase product.

Initialize the client

let client = SupabaseClient(
    supabaseURL: URL(string: "https://xyzcompany.supabase.co")!,
    supabaseKey: "your-publishable-key"
)

Initialize with custom options

let client = SupabaseClient(
    supabaseURL: URL(string: "https://xyzcompany.supabase.co")!,
    supabaseKey: "your-publishable-key",
    options: SupabaseClientOptions(
        db: .init(
            schema: "public"
        ),
        auth: .init(
            storage: MyCustomLocalStorage(),
            flowType: .pkce
        ),
        global: .init(
            headers: ["x-my-custom-header": "my-app-name"],
            http: .init(transport: URLSessionTransport(session: URLSession.myCustomSession))
        )
    )
)

Invoke an Edge Function

struct Answer: Decodable { let text: String }

// JSON in, typed JSON out
let answer: Answer = try await client.functions.invoke("ask", body: .json(["prompt": "hi"]))

// Raw response: status, headers, bytes
let response = try await client.functions.invoke("report", options: .init(method: .get))
print(response.status, response.body.count)

Stream a response

let response = try await client.functions.stream("chat", body: .json(["prompt": "hi"]))
for try await chunk in response.body {
  // chunk boundaries follow the network; frame server-sent events yourself
}

Generate database types

supabase gen types --lang swift writes @Table structs for your schema. It runs the supabase-typegen executable, which ships with each supabase-swift release. The CLI reads your supabase-swift version from Package.resolved and downloads the matching build itself. You need to install it by hand only when the CLI cannot do that, for example without network access. It then uses the supabase-typegen it finds on your PATH. Install the build that matches the supabase-swift version your project uses:

VERSION=2.55.1 # your supabase-swift version
ASSET=supabase-typegen-macos-universal.tar.gz # or supabase-typegen-linux-x86_64.tar.gz
mkdir -p ~/.local/bin
curl -fsSL "https://github.com/supabase/supabase-swift/releases/download/v$VERSION/$ASSET" | tar -xz -C ~/.local/bin
supabase-typegen --version

Put ~/.local/bin on your PATH if it is not there yet. Then generate the file:

supabase gen types --lang swift --local > Sources/App/Database.swift

On macOS, a binary you download with a browser is quarantined, and Gatekeeper blocks it. curl does not set the quarantine flag. To clear it from a browser download, run xattr -d com.apple.quarantine ~/.local/bin/supabase-typegen.

Additional examples are available in the Examples directory.

Support Policy

Xcode

We only support Xcode versions that are currently eligible for submitting apps to the App Store. Once a specific version of Xcode is no longer supported, its removal from Supabase won't be treated as a breaking change and will occur in a minor release.

Swift

The minimum supported Swift version corresponds to the minor version released with the oldest-supported Xcode version. When a Swift version reaches its end of support, it will be dropped in a minor release, and this won't be considered a breaking change.

Platforms

We maintain support for the four latest major versions of each platform, including the current version.

When a platform version is no longer supported, Supabase will drop it in a minor release, and this won't count as a breaking change. For instance, iOS 14 will no longer be supported after the release of iOS 18, allowing its removal in a minor update.

For macOS, the named yearly releases are treated as major versions for this policy, regardless of their version numbers.

[!IMPORTANT] Android, Linux and Windows work but aren't officially supported, and may stop working in future versions of the library.

Contributing

We welcome contributions! Please see the steps below.

1. Fork the repo and clone it locally.
2. Create a feature branch (git checkout -b feature/my-feature).
3. Make your changes and add tests.
4. Run ./scripts/format.sh to format Swift code.
5. Run PLATFORM=IOS XCODEBUILD_ARGUMENT=test ./scripts/xcodebuild.sh to verify tests pass.
6. Commit using Conventional Commits (e.g. feat(auth): add PKCE support).
7. Open a pull request against main.

Support

• Documentation: supabase.com/docs/reference/swift
• Community: GitHub Discussions
• Issues: GitHub Issues
• Discord: Supabase Discord

License

This project is licensed under the MIT License — see the LICENSE file for details.

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