Nodejs sets Taobao agent

With the widespread application of Node.js in back-end development, more and more developers are beginning to use it for development and deployment. However, when using npm to install dependencies in a Node.js application, it may be affected by the network environment, resulting in slow or failed dependency downloads. At this time we can use Taobao agent to solve this problem.

This article will introduce how to set up Taobao proxy in Node.js application to quickly download and install dependencies.

1. The principle of Taobao agent

The principle of Taobao agent is to replace the npm source with the Taobao mirror, because the Taobao mirror is a mirror based on npmjs.org, which has complete npmjs.org data, and the network latency is very low, so dependencies can be downloaded and installed quickly.

Npm source is used to store Node.js application dependency packages. npm officially provides a default source, but due to network reasons, the download may be slow or the download may fail. The Taobao mirror is built on this basis. It synchronizes resources from npm's foreign sources to China, so it can increase the speed of npm installation.

2. Set up Taobao proxy

In order to make the Node.js application use Taobao proxy, we need to do the following steps.

1. Install nrm

nrm is a Node.js tool that allows you to manage different npm sources. Using nrm, you can easily switch npm sources and list all available sources. To set up Taobao agent in Node.js application, you need to install nrm first. You can install it through the following command:

npm install -g nrm

2. List the available npm sources

After installing nrm, you can use the following The command lists available npm sources:

nrm ls

By default, the following output will be displayed:

npm ---- https://registry.npmjs.org/
yarn --- https://registry.yarnpkg.com/
tnpm --- http://registry.npm.taobao.org/
cnpm --- http://r.cnpmjs.org/

3. Use Taobao mirror

Use the following command to switch the npm source to Taobao mirror:

nrm use taobao

After setting up, you can use normal npm commands to install and uninstall dependencies. The system will download the corresponding package from the Taobao mirror, which is relatively fast.

4. Restore the default source

When you need to restore the npm source to the default source, you can use the following command:

nrm use npm

Summary

This article is brief Introduces how to set up Taobao proxy in Node.js application. By using Taobao agents, you can increase dependency download speeds and speed up application deployment, making development more efficient.

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