What is the process of utilizing multiple npm registries within Yarn?

Question

What is the process of utilizing multiple npm registries within Yarn?

Currently, I am facing a challenge while setting up Yarn 0.17.9 in our environment due to issues with our registry setup. Our environment involves two registries - the official npmjs registry and our own internal network registry (Sinopia).

The main issue arises when we try to pull packages from either registry using the --registry flag in npm install. However, the problem occurs because the yarn add command does not have a --registry option, making it difficult to set a custom registry globally with fallback to npmjs. I attempted to use the .npmrc file but it only allows one registry for npm/yarn within a project. Additionally, the .yarnrc file does not seem to be effective and is overridden by the .npmrc.

Is there a way to specify two registries, with a fallback to the second registry if the package is not found in the first one? Alternatively, is there a method to define a different npm registry for each individual package?

javascript npm yarnpkg

Answer 1

Answer №1

Creating a .yarnrc file at the project's root directory allows you to specify a custom repository by adding this line:

registry "https://registry.npmjs.org/"

Using this method will establish a project-specific repository for your project.

Answer 2

Creating a .yarnrc file at the project's root directory allows you to specify a custom repository by adding this line:

registry "https://registry.npmjs.org/"

Using this method will establish a project-specific repository for your project.

Answer 3

Answer №2

For anyone stumbling upon this in the year 2021, it's worth noting that yarn has now made advancements in its functionality. It can now handle scopes, private registries, and authentication.

As an illustration, I have successfully published private packages such as

@my-company-private-scope/my-package

to a Verdaccio (which is essentially a fork of Sinopia) server. My configuration in the .npmrc file looks like this:

; Any lines starting with ; are meant for .npmrc file comments
; With yarn 1.22.10, it seems that the default registry is set to https://registry.yarnpkg.com
; regardless of what is specified here
; registry=https://registry.npmjs.com/

@my-company-private-scope:registry=https://npm.my-company.com/
//npm.my-company.com/:_authToken=TOKEN

; Surprisingly, I didn't feel the necessity to include this, as
; yarn was still able to successfully install both public and private packages
; based on the contents of my yarn.lock file
; //npm.my-company.com/:always-auth true

It appears that npm also provides support for scopes. While yarn unpublish may not be available, I found that

npm unpublish @my-company-private-scope/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="a5c8dc88d5c4c6cec4c2c0e5948b958b948890">[email protected]</a>

worked seamlessly.

Although I haven't yet had the need to experiment with multiple scopes across various private servers (though I might consider it in the future, perhaps), there doesn't seem to be any glaring reasons why it wouldn't function just as smoothly.

Answer 4

For anyone stumbling upon this in the year 2021, it's worth noting that yarn has now made advancements in its functionality. It can now handle scopes, private registries, and authentication.

As an illustration, I have successfully published private packages such as

@my-company-private-scope/my-package

to a Verdaccio (which is essentially a fork of Sinopia) server. My configuration in the .npmrc file looks like this:

; Any lines starting with ; are meant for .npmrc file comments
; With yarn 1.22.10, it seems that the default registry is set to https://registry.yarnpkg.com
; regardless of what is specified here
; registry=https://registry.npmjs.com/

@my-company-private-scope:registry=https://npm.my-company.com/
//npm.my-company.com/:_authToken=TOKEN

; Surprisingly, I didn't feel the necessity to include this, as
; yarn was still able to successfully install both public and private packages
; based on the contents of my yarn.lock file
; //npm.my-company.com/:always-auth true

It appears that npm also provides support for scopes. While yarn unpublish may not be available, I found that

npm unpublish @my-company-private-scope/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="a5c8dc88d5c4c6cec4c2c0e5948b958b948890">[email protected]</a>

worked seamlessly.

Although I haven't yet had the need to experiment with multiple scopes across various private servers (though I might consider it in the future, perhaps), there doesn't seem to be any glaring reasons why it wouldn't function just as smoothly.

Answer 5

Answer №3

While Yarn lacks a built-in --registry flag like npm, you have the option to define your registry in the .yarnrc file.

If your .yarnrc settings are not taking effect, you can manually set the registry by copying it from the ~/.yarnrc file using:

yarn config set registry http://custom.registry.com/

Answer 6

While Yarn lacks a built-in --registry flag like npm, you have the option to define your registry in the .yarnrc file.

If your .yarnrc settings are not taking effect, you can manually set the registry by copying it from the ~/.yarnrc file using:

yarn config set registry http://custom.registry.com/

Answer 7

Answer №4

If you're facing issues, consider changing the registry settings in your .npmrc and .yarnrc files.

For instance, in your .npmrc:

registry=https://yourcompany/
virtual/:_authToken=credentials
always-auth=true

It's crucial that always-auth=true is placed as the last line in the file.

And within your .yarnrc:

registry "https://registry.yarnpkg.com"

By making these adjustments, commands like yarn add or npm install should now support both private and public packages.

Answer 8

If you're facing issues, consider changing the registry settings in your .npmrc and .yarnrc files.

For instance, in your .npmrc:

registry=https://yourcompany/
virtual/:_authToken=credentials
always-auth=true

It's crucial that always-auth=true is placed as the last line in the file.

And within your .yarnrc:

registry "https://registry.yarnpkg.com"

By making these adjustments, commands like yarn add or npm install should now support both private and public packages.

Answer 9

Answer №5

In the latest version 3 (3.4.1) of the software, it is now possible to set up multiple repositories by configuring the .yarnrc.yml file, for example including GitHub Packages:

npmScopes: 
  your-organization-or-account:
    npmRegistryServer: "https://npm.pkg.github.com"

To explore additional options, refer to the Yarn documentation under 'npmScopes': yarn-docs

Note that this configuration method remains consistent in version 4 (currently at 4.0.2).

Answer 10

In the latest version 3 (3.4.1) of the software, it is now possible to set up multiple repositories by configuring the .yarnrc.yml file, for example including GitHub Packages:

npmScopes: 
  your-organization-or-account:
    npmRegistryServer: "https://npm.pkg.github.com"

To explore additional options, refer to the Yarn documentation under 'npmScopes': yarn-docs

Note that this configuration method remains consistent in version 4 (currently at 4.0.2).

What is the process of utilizing multiple npm registries within Yarn?

Answer №1

Answer №2

Answer №3

Answer №4

Answer №5

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