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Informations about the package url-shortener-bundle

UrlShortenerBundle

Latest Version on Packagist Build Status

Getting started

Folder structure

Feature & Update & Note

Algorithm

Get "short-url" process

  1. Insert "long-url" into database then return row-id
  2. Encode row-id then save it

Redirect "short-url" process

  1. Decode incoming "short-url" then we get row-id
  2. Return item in that row-id

Reason behind "row-id" approach

Short url: produce shortened version of url

  1. Generate: produce a shortened version of the URL submitted
  2. Lookup: when the shortened version is called, look up this reference in database then return it

And the challenge is

  1. Lookup time
  2. Allow very very large number of unique ids and at the same time
  3. Keep the ID length as small as possible
  4. ID should be sort of user friendly and possibly a memorable (if possible)
  5. Scale with multiple instances (Sharding)
  6. What happens when ID reach the maximum value e.g. (if the length is 7 containing [A-Z, a-z, 0-9], we can serve 62^7 (~35k billion) urls)
  7. Replication, database can be crashed by many problems, how to replicate instances, recover fast ?, keep read / write consistent ?

In this bundle, we will focus on point 1. How we can reduce loop-up time.

So, In this project decide to using "Attemp 4" by using Hashids for hash function (Hashids will generate unique code from difference id)

Reference && Tool

Algorithm

All versions of url-shortener-bundle with dependencies

PHP Build Version
Package Version
Requires php Version ~5.6|~7.0
symfony/framework-bundle Version ~2.6|~3.0
doctrine/orm Version ^2.5
doctrine/doctrine-bundle Version ^1.6
hashids/hashids Version ^2.0
jms/serializer-bundle Version ^1.3
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The package leopardd/url-shortener-bundle contains the following files

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