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Registry

The package is served from this project’s GitLab package registry. It is public - no token is required to install. Point the scope at it in your .npmrc:
One package, one endpoint. The SDK carries everything it needs; nothing else has to be installed or configured to make it resolve.

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Requirements

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Entry points

The primary entry point imports no RxJS, so an application that never imports the second one ships none of it. A pipeline job asserts that on the built bundle.

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Migrating to v0.14.0

evaluateABStream moved out of the client and into the /rxjs entry point:
The observable behaves identically and unsubscribing still aborts the request. evaluateAB - the promise-shaped call - is unchanged and still on the client.

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Your API key

Browser SDKs require a public key (wxp_...). Any other key is rejected when the client is created, with a NexusConfigError that names the option. A public key is safe to ship in a bundle: it cannot read secrets, and the backend’s Double-Gate check ties it to one service host. A secret key (wxs_...) in browser code would be readable by every visitor, which is why there is no configuration that makes one work here. Create one in the Nexus admin console under the service’s API keys, choosing the public key type.

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Verifying the install

If npm reports 404 Not Found, the scope line is missing from .npmrc or the registry URL has the wrong project ID.