Data model

Any changes in document will be propagated by message structure with action msg:

{
    id: 204551347a1489f70f38ddb5 // document id in hex
    action: "msg"
    op: { // operation structure
        type: ‘i’ // insert (i), remove (r)
        pos: 42 // position in file
        text: ‘f’ // text for insert
    }
}

Download entire document content after load file(subscribe to proper channel) returned in message structure with action doc:

{
    id: 204551347a1489f70f38ddb5 // document id in hex
    action: "doc"
    text: "<p>Ala ma kota...</p>"
}

Message recieved from server after someone has changed document content while being in offline mode (those who are online are replacing their content and are shown a proper message) - action doc:

{
    id: 204551347a1489f70f38ddb5 // document id in hex
    action: "doc"
    text: "<p>Ala ma kota...</p>"
    override_warning: true
}

Download list of documents by message structure with action list:

{
    action: "list"
}

Returned in message structure with action list:

{
    action: "list"
    files: [
        { id: 204551347a1489f70f38ddb5, name: "global" }, // structure representing document with id and name
        { id: 204551347aff29f70f38ddb5, name: "Sample1" }
    ]
}

Document representation in mongo database:

{
     _id: ObjectId("551347a1489f70f38ddb5126") // document id
     last_change: ISODate("2015-04-11T13:08:25.222Z")
     text: "<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras non justo tellus.</p>"
     priv: true // true or false
}

Saving document and creating new document operation is supported by message structure with action save, for creation of new documents, it's needed to pass "<p><br></p>" for text value instead of document content:

{
    action: "save"
    name: "Doc1"
    text: "<p>Ala ma kota...</p>"
    priv: false
}

After successful document save or creation, server will return message with action save:

{
    action: "save"
    name: "Doc1"
    id: 204551347a1489f70f38ddb5 // document id in hex
}