Couchdb Design doc to be used on json-ld database with Schema.org

schemaorg-validate-doc-update.js

function(newDoc, oldDoc, userCtx){

    if(newDoc._id.startsWith("_design/")){
        return
    }
    
    if(newDoc._deleted){
        return;
    }
    
    var context = newDoc["@context"]

    if(!context || (context != "http://schema.org/" && context[0] != "http://schema.org/")){
        throw({forbidden: "json-ld: Main context MUST be \"http://schema.org/\""})
    }

    function checkTypes(obj, name = "."){

        if(obj["@type"] && obj["@type"].startsWith("http://schema.org/")){
            throw({forbidden: `json-ld: @type of object "${name}@type" MUST NOT start with \"http://schema.org/\"`})
        }

        for(key in obj){
            if(typeof obj[key] == "object"){
                checkTypes(obj[key], name+""+key+".");
            }
        }
    }

    checkTypes(newDoc);

}