Plugin API can not change the proxy, why?

[Fl0pZz]

Version

3.0.0-rc.10

Node and OS info

node 10.7

Steps to reproduce

Plugin API can not change the proxy, why?

vue-cli/packages/@vue/cli-service/lib/commands/serve.js

Line 46 in cf6290f

const projectDevServerOptions = options.devServer || {}

use only proxy settings from vue.config.js

What is expected?

I expect that I can change the proxy settings, through Plugin API and webpack config (chaining or configure)

What is actually happening?

Nothing

[Fl0pZz]

vue inspect | grep devServer has an empty output (but i add devServer config into vue.config.js)

[haoqunjiang]

@Fl0pZz How did you add devServer config? Can't reproduce this issue with the following config.

module.exports = {
  chainWebpack: config => {
    config
      .devServer
      .proxy({
        '/api': 'http://localhost:3000'
      })
  }
}

[Fl0pZz]

https://cli.vuejs.org/config/#devserver-proxy

// vue.config.js
module.exports = {
  devServer: {
    proxy: {
      '/api': {
        target: '<url>',
        ws: true,
        changeOrigin: true
      },
      '/foo': {
        target: '<other_url>'
      }
    }
  }
}

[Fl0pZz]

@sodatea and your code don't work, because https://github.com/vuejs/vue-cli/blob/dev/packages/%40vue/cli-service/lib/util/prepareProxy.js#L116

[Fl0pZz]

Oh, sorry.
vue inspect | grep devServer has an empty output (but I add devServer config into vue.config.js) - my mistake. That's ok

[Fl0pZz]

However, the original question remains open:
Plugin API cannot change the proxy, why?