# About

Trikoder Trim is user interface framework for building headless content management systems that connect to JSON API powered backend. Craft responsive single page applications that work on all devices.

Content management systems built on top of Trikoder Trim are decoupled from server side technology stack. UI framework works nicely with any server side technology that can process and render json api dataset compliant with json:api specification.

Trim enables you to quickly build administration CRUD (create, read, update, delete) interface for your application resources. Resulting CMS is responsive and fast - all styles and behavior for standard use cases come included - programmers job is only to define how each application resource is listed and edited.

Sensible dependency on standardized backend api enables us to create CMS domain specific language or api in javascript that is pretty much decoupled from JS libraries and frameworks that are used underneath. Any capable programmer should be able to define complete interface for resource in need of administration.

# Technology and tooling

Trikoder Trim is built on following open source stack:

• Vue, Vue Router and Vuex are used for application views, routing and store management.
• Axios is used as http client
• JSON api resource is used for querying and persisting resources
• Webpack is used for module bundling and code splitting

# Code sneek peek

Lets assume your application has a simple "tag" resource and backend api for this resource is ready. You want to show list of tags that can be filtered by title. Additionally you want to setup create and edit interface with input for setting tag title. Your code should end up looking something like this:

export default {

    resourceName: 'tag',

    setupList: function({list}) {

        this.addCreateControl('Create new tag');

        list.addFilter('TextFormElement', {
            name: 'title',
            label: 'Title'
        });

        list.addItem('TextListItem', {
            caption: 'ID',
            mapTo: 'id'
        });

        list.addItem('LinkListItem', {
            caption: 'Title',
            mapTo: 'title',
            action: 'editItem'
        });

    },

    setupEdit: function({edit}) {

        this.addToIndexControl().addSaveControl();

        edit.addField('TextFormElement', {
            label: 'Title',
            name: 'title'
        });

    }

};

# Demo application

Visit demo application to get a feeling how CMS built with Trikoder CMF looks and behaves. Is is completely safe to browse, edit and delete items - backend api on demo pages is running on client json api server that stores data in browser memory - so no harm can be done. Dataset can be reset by clicking "reset demo data" control in lower left corner of administration UI. Examine how everything is composed in demo codebase.

Feel free to browse, cut and paste from demo codebase for your CMS needs and use it as reference.