npm-search | Electron app to search | Runtime Evironment library

The purpose of this effort is to be able to test whether a package version exists in a private registry, without having to touch the filesystem / config files. For packages in public registries this is perfectly straightforward: npm view lpad@2.0.1 produces some information about that published version, but (as of this writing) npm view lpad@201.0.0 does not have any information or output. I'm using this to infer the existence of packages.

I can also pass a private registry URL to npm view , as in npm view --registry https://private.registry/path/. This seems to hit the private registry even though it isn't explicitly mentioned in the npm-view documentation (but it's described in the npm-search documentation, so I take this to mean it's a documented API feature).

To be able to talk to private registries at all, I can use an authentication token in the query according to these npm instructions for doing it in a CI/CD workflow: put it into the .npmrc file like this: