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eBay Tech Blog

To support the world’s largest internet marketplace, eBay tackles technical challenges at a scale that few others have. With this blog, we share our experiences working on those challenges with the technical community.

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Two Years Later: APIs are the Destination
By: Tanya Vlahovic

eBay speaks API! Two years ago, we started a journey to deliver a new, modern family of APIs to expose marketplace capabilities to sellers and buyers.

Featured Blog Posts

Browse eBay with Style and Speed
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Announcing Kylin: Extreme OLAP Engine for Big Data
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Statistical Anomaly Detection
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Effective Front-End Code Review
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The Web Push Checklist
By: Senthil Padmanabhan

eCommerce sites are ideal candidates for push notifications and eBay is no exception. Timely notifications can help users track the status of items that they have purchased or watching or bidding, without effectively being on the site. But we are also aware that push notifications can end up being a double-edged sword. At eBay, we recently launched web push notifications for a subset of desktop users and want to share that experience.

Most Commented

Event Sourcing in Action with eBay's Continuous Delivery Team (Part 2)
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Caching HTTP POST Requests and Responses
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Optimization Study on Processing Order of NetScaler Load Balancer Layer 7 Policies
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Your Own Spring Test Context
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Large-Scale Product Image Recognition with Cloud TPUs
By: Shuai (Kyle) Zheng

Customers all over the world use eBay to buy and sell all kinds of products. With more than one billion product listings on eBay, it is essential for eBay to use cutting-edge AI to help everyone find the products that they want. And visual search is increasingly important—with cameras on every smartphone, eBay customers want to be able to snap a photo to find exactly what they see.

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Managing HTTP Header Size on NetScaler Load Balancers
By: Charles Li

The way that the NetScaler load balancer handles oversized HTTP header is not quite straightforward when combined with layer 7 policies and may result in unexpected consequences and bad user experiences if overlooked. This article explains how the header limit works and offers our recommendations on how to manage it properly.

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Event Sourcing in Action with eBay's Continuous Delivery Team (Part 2)
By: John Long and Nataraj Sundar

In our first article, we introduced the concept and some of the benefits of event sourcing. For this article, we are going to get very specific about how we implemented event sourcing for the Enterprise Continuous Delivery (ECD) project here at eBay.

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Event Sourcing: Connecting the Dots for a Better Future (Part 1)
By: John Long and Nataraj Sundar

Using an Event-centric approach has enabled our team at eBay to scale to handle millions of events with the resiliency to recover from failures as quickly and reliably as possible. Though similar approaches have been widely adopted to augment large-scale data applications, for eBay's Continuous Delivery team, Event Sourcing is at the heart of decision-making and application development. To that end, we've built a system that continuously scales and tests our ability to handle an increasing volume of events and an ever growing list of external data sources and partner integrations.

spring featured5
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Your Own Spring Test Context
By: Tony Da Silva Bernardino

When applications become big and complex, we are presented with a whole new set of challenges. As engineers, we have to find ways to overcome them. Read how we addressed one of those challenges: Spring integration tests performance.

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