API creator

Installation

Dependencies

Install the dependencies via composer from the project root:

composer install

Run webserver

Using PHP's internal webserver

Go inside the web directory and start PHP's internal webserver.

NOTE: this webserver is single-threaded and is not for production!

cd web
php -S 0.0.0.0:8000

Using Docker

Use the helper-script in the project-directory to spin up the Docker-container

# run docker-compose
docker-compose -f docker-compose.dev.yml up

# using the helper script in the root of the project
./dev up

Change PHP-version

If you want to change the PHP-version to work with, edit the file docker-compose.dev.yml. Comment out the line for the PHP-version you don't want and un-comment the line for the PHP-version you do want. Then start the Docker-containers with one of the commands above like ./dev up.

Setup database

Then install the database (ignore the errors)

./dev exec db mysql -u root -proot api < resources/schema.sql
./dev exec db mysql -u root -proot api < resources/fixtures.sql

If you want to see the version of PHP you're currently using in the PHP-docker container, you can issue the following command:

./dev exec php php -v

PHP 7.1.8-2+ubuntu16.04.1+deb.sury.org+4 (cli) (built: Aug  4 2017 13:04:12) ( NTS )
Copyright (c) 1997-2017 The PHP Group
Zend Engine v3.1.0, Copyright (c) 1998-2017 Zend Technologies
    with Zend OPcache v7.1.8-2+ubuntu16.04.1+deb.sury.org+4, Copyright (c) 1999-2017, by Zend Technologies
    with Xdebug v2.5.5, Copyright (c) 2002-2017, by Derick Rethans

Run tests

There are functional tests to assure the correct working of the API. These tests are created with behat.

Execute the tests with either the helper-script or with behat itself.

# use behat
cd tests/behat
../../vendor/bin/behat

# OR use the helper script in the root of the project
./dev test

Usage

Create call

In order to create a new call, specify the following data:

• website name or alias (will be used in the final URL of your API-request like /api/v1/<name>/)
• website URL (will be used to scrape the information from)
• (one or more) endpoint name(s) (will be used in the url of you API-request like /api/v1/<websitename>/<endpoint>)
• (one or more) type(s) The selector type should one of the following: XPATH, CSS or REGEX. Will default to CSS if not supplied.
• (one or more) selector. The selector that will point to the HTML-element on the website which contains the data you want to be exposed via the API. -- In case of xpath, the format is as followed: /html/body/div/ -- in case of css, simply use the CSS selector. For example: div.class h5 -- in case of regex: 'class="test">([^<]*)<\/a>'. Note that you should always test these calls, because regex is easy to mess up :)
• (one or more) alias. This is the key which will be used to return the content of the above mentioned element. You can see this as providing the property-name. Like 'name' or 'date'.

curl -v -X POST -H "Content-Type: application/json" -d'{
    "website_name": "wecamp",
    "website_url":  "http://weca.mp/2017/",
    "endpoints": [
        {
            "name": "coaches",
            "selectors": [
                { "selector": "h5.center", "alias": "name" },
                { "selector": "span.bio", "alias": "bio" },
                { "selector": "label.card img", "alias": "profile_image" }
            ]
        }
    ]
}
' http://localhost:8020/api/v1/create 

On successful creation, an ID should be returned to you, which can be used to update or delete the call.

Test call

Before submitting a new call, it might be wise to test your call first, to see if the response is retrieved that you might want. To do so, simply call the /test endpoint, with the same parameters as you would the /create endpoint.

curl -v -X POST -H "Content-Type: application/json" -d'{
    "website_name": "wecamp",
    "website_url":  "http://weca.mp/2017/",
    "endpoints": [
        {
            "name": "coaches",
            "selectors": [
                { "selector": "h5.center", "alias": "name" },
                { "selector": "span.bio", "alias": "bio" },
                { "selector": "label.card img", "alias": "profile_image" }
            ]
        }
    ]
}
' http://localhost:8020/api/v1/test 

Info call

You can retrieve information about a call, including the endpoint and selectors, by calling the /info// endpoint.

curl http://localhost:8020/api/v1/info/wecamp/coaches

}

List call

To call the data you created in the create call, simply use the website name and endpoint name in your url as such: