conac-session

session plugin for conac

install

Start your conac project, and run

npm i -S conac-session

setup

Add the plugin in the conac constructor. It has dev-sensible defaults, so this will work:

new Conac({
  ...
  plugin: [
    ...
    'conac-session',
    ...
  ],
  ...
});

You will likely want different settings. Instead of passing the string, use:

new Conac({
  ...
  plugin: [
    ...
    {
      pkg: 'conac-session',
      param: {
        cookie: { secure: true },
      },
      field: 'sess',
      initialize: {
        views: 0,
      }
    },
  ]
});

param

The param property is directly passed to express-session, after some undefined values are substituted with defaults.

field

The field property determines under what name the req.session will be added to the accumulator. Default is 'session'

initialize

The initialize property sets additional initial values of the session, so you don't have to do it in the routes. This can be an object, or a function that returns an object, to avoid using the same references. Default is {}

notes

Keep in mind that the defaults are NOT good for production.

You should set param.cookie.secure to true, and select a secret.

For now, the secret is pseudo-randomly generated every time the application starts, which means sessions won't persist between server restarts.

There's a param.trustProxy that calls app.set('trust proxy', 1) if true, which is the default. You might want to set this to false

usage

Here's a full sample application:

const { Conac, affirm } = require('conac');

new Conac({
  plugin: [{
    pkg: 'conac-session',
    field: 'user',
    initialize: {
      counter: 0,
    },
  }],
  routes: {
    'get /': ({ user }) => {
      return user.counter;
    },
    'get /inc': ({ user }) => {
      user.counter += 1;

      return user.counter;
    },
    'get /dec': ({ user }) => {
      user.counter -= 1;

      return user.counter;
    },
    'get /set/:value': ({ user, data }) => {
      user.counter = Number(data.value);

      return user.counter;
    }
  }
});

Every session will have a different counter, initialized at 0. Here's a few examples

USER  PATH    RESPONSE
Ada   /       { success: true, data: 0 }
Ada   /inc    { success: true, data: 1 }
Ada   /inc    { success: true, data: 2 }
Ada   /inc    { success: true, data: 3 }
Ada   /dec    { success: true, data: 2 }
Ada   /dec    { success: true, data: 1 }
Ada   /dec    { success: true, data: 0 }
Ada   /dec    { success: true, data: -1 }
Ada   /       { success: true, data: -1 }
Ada   /set/5  { success: true, data: 5 }
Ada   /inc    { success: true, data: 6 }
Bob   /       { success: true, data: 0 }
Bob   /inc    { success: true, data: 1 }
Ada   /       { success: true, data: 6 }