How to Use Private Registries with Cargo

Configure your private registry in ~/.cargo/config.toml (or .cargo/config.toml in your project) and add the registry name to your Cargo.toml dependencies.

1. Add your registry configuration to ~/.cargo/config.toml with your registry URL and authentication token.

[registries.my-private-registry]
index = "https://github.com/my-org/my-registry-index.git"

[registry.my-private-registry]
token = "YOUR_AUTH_TOKEN"

2. Specify the registry in your Cargo.toml file for the specific crate you want to pull from it.

[dependencies]
my-private-crate = { version = "1.0", registry = "my-private-registry" }

3. Run cargo build to fetch the crate from your configured private registry.

cargo build

Using private registries with Cargo tells the tool where to find your private code packages instead of the public internet. You define the location and password in a settings file, then tell your project to use that specific source for a library. It's like adding a custom bookshelf to your library system so you can check out books that aren't in the main catalog.