npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2024 – Pkg Stats / Ryan Hefner

cs558-db

v1.0.0

Published

CS558 Database Module.

Downloads

4

Readme

cs558-db

This module exposes a constructor to the ClassDB object, which handles all of the reading/writing entries in the db. It is built ontop of level.

Usage:

var classdb = require("cs558-db");

//create new ClassDB instance
var db = new classdb(pathToDataBase);

//add a new student to the database with name "name", "password", and a 
//callback function that is called after the student database operations.
//callback will be called with at most one argument -- an error string.
db.addNewStudent("name", "password", function(err){
  if(err){
    //failed to add student to database
  }else{
    //successfully added student to database
  }
});

//Store student submission sources for each attempt. The callback function 
//is called with at most one argument -- an error string. Src should be a 
//Buffer. It is similar usage for putAssignmentScore. 
db.putAssignmentSrc("name", "password", assignmentNum, src, function(err){
  if(err){
    //error storing src
  }else{
    //successfully store src
  }
});

//Similarly we can use db to acccess assignment scores and sources, with
//db.getAssignmentScore and db.getAssignmentSrc respectively. Takes a 
//call back as argument, and will be passed an error string as the first 
//argument if there is an error, otherwise the second argument passed will be
//the score(or source for getAssignmentSrc). db.getMaxAssignmentScore is
//similar but doesn't take an attempt argument.
db.getAssignmentScore("name", "password", "attempt", function(err, val){
  if(err){
    //error getting score
  }else{
    //score is read and passed as val
  }
});

//db.verifyStudent takes a name, password and callback and verifies the 
//the password name combination, and passes an error to callback if there 
//is an error. 
db.verifyStudent("name", "password", function(err){
  if(err){
    //error, maybe non existent student or bad password
  }else{
    //Student identity is verified.
  }
});