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yaml-server

v1.10.0

Published

A command line tool that creates a REST server from a YAML file that you specify

Downloads

23

Readme

Build Status Coverage npm version npm downloads The MIT License

Table of Contents

About

Recognition, this project wouldn't be here with out the great json-server. I thought to myself that JSON was a little verbose. So I created yaml-server so you can have a Mock REST API based on a YAML file instead.

yaml-server is a command line tool that create a REST server based on a YAML file.

Application running

Features

  • RESTful API Do HTTP requests towards a Mock API using GET, PUT, POST and DELETE created off of a db.yml file.

  • Filter your GET calls with query parameters page and pageSize, example:

    /products?page=1&pageSize=10
  • JSON support, yes you can have your database in JSON as well. All you need is to specify the --dialect argument like so:

    npx yaml-server --dialect=json

    The above will look after a db.json file at the root. You override where it looks for this if you specify --database like for example:

    npx yaml-server --dialect=json --database ./db/db.json

    Above you need to ensure the db.json is located in sub directory db as seen from the root.

  • Create new resource, make a POST call with the following format /<new resource>/new, example:

    /kittens/new

    Ensure you have a payload as well, looking like for example { title: 'paw paw' }

  • Sorting, by order and key, you can sort a resource response using query parameters sortOrder and sortKey. Assume we have the resource /kittens where one kitten object looks like so { id: 1, name: 'paws' } and the entire resource looks like so:

    [{
      id: 1,
      name: 'paws'
    }, {
      id: 2,
      name: 'alpha paw'
    }]

    Use sorting by appending sortOrder and sortKey like below:

    /kittens?sortOrder=ASC&sortKey=name

    This would give the response:

    [{
      id: 2,
      name: 'alpha paw'
    }, {
      id: 1,
      name: 'paws'
    }]
  • browser autostart, the Browser auto starts at http://locallhost:<selected port>/info. Should you not wish to have that behavior, you can shut it off like so:

    npx yaml-server --autoStart=off
  • Static file server

    By default a static file server is starting up to host your files at root directory. You can change that by specifying --static. Here's how you would do that:

    npx yaml-server --static=public

    The above would start a static file server from the sub folder public.

  • Hot reload

    The server will restart if you make changes to your database file. No need for closing and starting the server after a database change. Should you not wish that behavior, you can shut it off with:

    npx yaml-server --hotReload=off

Install

Either install it globally with:

npm install -g yaml-server

OR use NPX

npx yaml-server --port 3000 --database ./db.yml

Run

  1. Create a db.yml.

  2. Give db.yml an example content, for example:

    products:
      - id: 1
        name: tomato
      - id: 2
        name: lettuce
    orders:
     - id: 1
       name: order1
     - id: 2
       name: order2
  3. There are two ways to start:

    1. Quick start, run npx yaml-server, this will start a server on http://localhost:3000 and base it off a db.yml at the project root that you created.
    2. With parameters, You can also configure like so npx yaml-server --port 8000 --database ./db/mydb.yml (If you place db file under ./db/mydb.yml)

See your routes

Open up a browser and navigate to http://localhost:<your port>/info. Default port is 3000, if you specified port use that as port instead.

The page at route http://localhost:<port>/info will tell you what routes and operations are available. Here's a typical response for the default page:

Welcome to YAML Server

Routes available are:

 GET /products
 GET /products/:id
 PUT /products
 DELETE /products/:id

 GET /orders
 GET /orders/:id
 PUT /orders
 DELETE /orders/:id

Routes

Routes are created from a YAML file. The default value is db.yml. You can name it whatever you want though.

Routes are first level elements. Consider the following example file:

# db.yml
products:
  - id: 1
    name: tomato
  - id: 2
    name: lettuce
orders:
  - id: 1
    name: order1
  - id: 2
    name: order2

This will produce routes /products, /orders. Below is a table of supported operations with products as example resource. The same operations are also supports for orders/.

| VERB |Route | Input | Output | |----------|---------------|------------|--------------------| | GET | /products | None | Array | | GET | /products/:id | e.g 3 | Object | | POST | /products | object | Created object | | PUT | /products | object | Updated object | | DELETE | /products/:id | e.g 3 | Deleted object |