sync_gateway_config.json

{
  "log": [
    "CRUD+",
    "REST+",
    "Changes+",
    "Attach+"
  ],
  "databases": {
    "couchbase-connect": {
      "server": "http://localhost:8091",
      "sync":
      `
      function(doc, oldDoc){

        log("processing " + doc._id);

        if (doc.type == "contact") {
            // Users can't assign their contact document to another user.
            if (oldDoc != null && oldDoc.userId != doc.userId) throw({forbidden: "Can't change userId."});            
            // Users can only change their own contact.
            requireUser(oldDoc == null ? doc.userId : oldDoc.userId);

        } else if (doc.type == "contactexchange") {
            // Can't modify a contact exchange document.
            if (oldDoc != null) throw({forbidden: "Can't modify a contact exchange document."});                      
            // Issuing user must be the local user.
            requireUser(doc.localUserId);

        } else if (doc.type == "surveyresult") {
            // Can't modify a conference survey document.
            if (oldDoc != null) throw({forbidden: "Can't modify a conference survey document."});                      
            // Extract the userId from the document _id (the format of _id is "surveyresult-USER-ID").
            var userId = doc._id.substring(13);
            // Users can only create their own conference survey.
            requireUser(userId);

        } else if (doc.type == "ratingresult") {
            // Extract the userId from the document _id (the format of _id is "sessionrating-session-XXXX-USER-ID").
            var userId = doc._id.substring(27);
            // Users can only change their own session ratings.
            requireUser(userId);

        } else if (doc.type == "scavengerhuntcapture") {
            // Extract the userId from the document _id (the format of _id is "scavenger-hunt-item-XXX-USER-ID").
            var userId = doc._id.substring(24);
            // Users can only change their own scavenger hunt pictures.
            requireUser(userId);

        } else if (doc.type == "agenda") {
            // Extract the userId from the document _id (the format of _id is "agenda-USER-ID").
            var userId = doc._id.substring(7);
            // Users can only change their own agenda.
            requireUser(userId);

        } else {
            // The 'admin' user can change any document.
            requireUser("admin");
        }

        if (doc.type == "contact") {
          // give user access to it's contact channel
          access(doc.userId, "contact-" + doc.userId);
          // add doc to user's contact channel
          channel("contact-" + doc.userId);
        }

        if (doc.type == "contactexchange") {
          // trade access to each user's contact channel
          access(doc.userId, "contact-" + doc.localUserId);
          access(doc.localUserId, "contact-" + doc.userId);
        }

        if (doc.type == "session" || 
            doc.type == "speaker" || 
            doc.type == "schedule" || 
            doc.type == "appconfig" ||
            doc.type == "scavengerhuntitem" ) {

          // everyone can sync these documents
          channel("public")
        }
      }
      `,
      "users": {
        "GUEST": {
          "disabled": true
        }
      }
    }
  }
}