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@elijahjcobb/hydrogen

v0.2.0

Published

Hydrogen is a custom HTTP server builder that is easy to use and has powerful functionality.

Downloads

15

Readme

hydrogen

Welcome to the hydrogen wiki! This is a work in progress and will be constantly updated. Below you will find pages to this wiki but also feel free to view some nice features and information about the package.

Pages

Features

Runtime Type Checking

This project uses typit which is a runtime type checker written by a close friend of mine. I have exported typit in the package so you do not have to worry about importing it or depending on it in your package.json. By defining types in your endpoint hydrogen will automatically parse the body of the response and verify that the types match, if they do not match and error will be returned and your handler will not even be called!

Errors

All errors are handled with hydrogen if you use an HError or err(code?: HErrorStatusCode, msg?: string, show: boolean = true): void it will be handled. You can also throw errors in a handler and hydrogen will handle them for you. If they are of type HError then errors codes and messages can be send to your client, if not, a 500 - Internal Server Error will be sent.

Coders

Requests and responses are automatically encoded and decoded for you however you still have the option to send raw Buffer objects through the TCP socket that is open with your client.

File Managers

You can send files or streams to your client but you can also receive file uploads from your client. To do this all you have to do is define a upload object on your endpoint you can limit things like mime, size, and where you want the file.

Low Level yet High Level

You can handle everything down on the binary level if you like by using the write(b: Buffer) and writeEnd() methods on HResponse but you also have helper methods like res.send(o: object), res.sendFile(path: string), res.sendString(s: string) and many many more. They are just sugar on top as everything ends up calling write() and writeEnd()

Modular

I use this package with another package of mine called @elijahjcobb/maria which is a package for communicating with MariaDB databases. It is very easy to use and I built it to sort of replicate what Parse used to be. In hydrogen I provide an interface called HObject that requires just one method with the signature bond(): object. On HResponse you can use sendHObject(obj: HObject) and it will take the object you provide and then use the object returned by bond() and send it using res.send(). This is helpful if you have properties that you may not want to send to the client all the time yet still provide a super fast way to send an object to your client.

Protocols

Everything revolves around HEndpointGroup objects. Once you have created an endpoint group you can either instantiate a HHTTPServer or HHTTPSServer (forgive me on the names lol). When you create a new server you must pass in an endpoint group to be used as the root endpoint group of your server. If you want an HTTPS server, simply use an HHTTPSServer, you will also have to pass in a key and certificate with the signature: new HHTTPSServer(endpointGroup: HEndpointGroup, key: Buffer, cert: Buffer) and voila you have HTTPS instead of :shit:y ol' HTTP.

About

Language

All of hydrogen is written in TypeScript. If you do not know how to use TypeScript don't worry. It is completely compatible with JavaScript.

Why?

I started this package to use in all my different projects. This is sort of a V2 to a package I wrote in 2018. I took everything I learned from the original package and used it. I named it hydrogen because I think element names are cool and hydrogen is kind of a building block for different bonds.

Author/Maintainer

My name is Elijah Cobb. I am a computer science student at Michigan Technological University. I have worked for a few start ups, one right out of high school. I am now the back-end developer for a few small projects and so this package is sort of the base of all my projects. When I need a feature I add it to this package.