Design tinyurl solution for free#
Design tinyurl solution software#

The HTTP PUT method is used because the PUT is idempotent and the idempotency quality resonates with the given requirement of 1-to-1 mapping between the long and short URL. The client executes an HTTP PUT request to the server to shorten a URL. The tradeoffs of RPC are tight coupling and difficulty to debug 4. Once the services have hardened and performance should be tuned further, switch to RPC for internal communications between services. The best practice to expose public APIs is through REST because of loose coupling and easiness to debug 2, 3. The components in the system expose the Application Programming Interface ( API) endpoints through Representational State Transfer ( REST) or Remote Procedure Call ( RPC). The user sets the visibility of the short URL.The client optionally defines the expiry time of the short URL.The short URL should support analytics (not real-time) such as the number of redirections from the shortened URL.The short URL should be web-crawler friendly ( SEO).The client should be able to choose a custom short URL.The short URL should be non-predictable.Multiple users entering the same long URL must receive the same short URL (1-to-1 mapping).The client visiting the short URL must be redirected to the original long URL.A client (user) enters a long URL into the system and the system returns a shortened URL.URL shortening Service similar to TinyURL, or Bitly.Most of the shortened URLs will be accessed only once after the creation.URL shortening and redirection to the original long URL.What is the reasonable length of a short URL?.Who will use the URL shortener service?.What is the usage pattern of the shortened URL?.What is the anticipated read: write ratio of the system?.How many years should we persist the short URL by default?.What is the amount of Daily Active Users ( DAU) for writes?.Questions to ask the Interviewer Candidate some instant messaging services limit the count of characters on the URL.disguise the underlying URL for affiliates.The reasons to shorten a URL are the following: Figure 1: What is a URL shortening service? Some popular public-facing URL shortening services are and 1. The short URL redirects the client to the URL of the original website. Bloom filter: a memory-efficient probabilistic data structure to check whether an element is present in a setĪ URL shortening service is a website that substantially shortens a Uniform Resource Locator ( URL).Hashing: a one-way summary of data that cannot be reversed and is used to validate the integrity of data.Encryption: secure encoding of data using a key to protect the confidentiality of data.Encoding: the process of converting data from one form to another to preserve the usability of data.

Design tinyurl solution software#

API: a software intermediary that allows two applications or services to talk to each other.CDN: a group of geographically distributed servers that speed up the delivery of web content by bringing the content closer to the users.Service Discovery: the process of automatically detecting devices and services on a network.Microservices: designing software that is made up of small independent services, which have a specific purpose.The following terminology might be useful for you: the server redirects the client to the original long URL against the short URL.the server persists the short URL in the data store.the server encodes the short URL for readability.the server generates a unique short URL for each long URL.

Never miss the feed on posts that get published on the websiteĪt a high level, the URL shortener executes the following operations:

Design tinyurl solution for free#

The powerful template to approach system design for FREE I highly recommend reading the related article to improve your system design skills.īy subscribing to the system design newsletter, you get the following: The system design of the URL shortener is similar to the design of Pastebin. As an Amazon Associate, I earn from qualifying purchases. Some of the linked resources are affiliates. Feel free to share your feedback and ask questions in the comments. This article is written based on the research I have done on the topic and might differ from real-world implementations. This article does not cover an in-depth guide on individual system design components.ĭisclaimer: The system design questions are subjective. The prerequisite to reading this article is fundamental knowledge of system design components. The target audience for this article falls into the following roles: