Just a quick note to say that another minor update to DynamoDB.SQL has been release, you can view the release notes here. The latest update adds support for a TSQL style WITH keyword for specifying optional parameters for tweaking the query/scan operation. For queries, you can specify the NoConsistentRead and PageSize options to use …
Hi, just a quick to say that my talk with .Net Rocks is now available on their web site. In this talk I shared some insights into how F# is used in our stack to help us build the backend for our social games, specifically in the areas of: implementation of a slots engine which …
The series so far: Hello World example Beyond Hello World Within a workflow, not all activities have to be performed sequentially. In fact, to increase throughput and/or reduce the overall time required to finish a workflow, you might want to perform several activities in parallel provided that they don’t have any inter-dependencies and can …
Introduction to AWS SimpleWorkflow Extensions Part 3 – Parallelizing activities Read More »
The series so far: 1. Hello World example 3. Parallelizing activities In this post we’re going to go beyond the previous Hello World example and show you how to use the SWF extensions library to model workflows with multiple steps and allow data to flow naturally from one step to the next. When using …
Introduction to AWS SimpleWorkflow Extensions Part 2 – Beyond Hello World Read More »
Series so far: 2. Beyond Hello World 3. Parallelizing activities In my previous post I mentioned some of the shortcomings with Amazon SimpleWorkflow (SWF) which drove me to create an extension library on top of the standard .Net SDK to make it easier to model workflows and business processes using SWF. In this series …
Introduction to AWS SimpleWorkflow Extensions Part 1 – Hello World example Read More »
Amazon SimpleWorkflow (abbreviated to SWF from here on) is a workflow service provided by Amazon which allows you to model business processes as workflows using a task based programming model. The service provides reliable task dispatch and state management so that you can focus on developing ‘workers’ to perform the tasks that are required to …
Making Amazon SimpleWorkflow simpler to work with Read More »
Just a quick note to say that I have made some minor changes to DynamoDb.SQL and released version 1.0.7 of the library to Nuget, here’s a list of the changes: fixed a bug with LIMIT when there is insufficient number of elements using the DynamoDBContext. added support for counting the number of matching items with …
Just a quick note to say that I have made some minor changes to DynamoDb.SQL to: Add support for specifying the ScanIndexForward option(see DynamoDB API doc here for detail) in a Query operation using an optional “ORDER” clause Fixed a bug where when querying using the extension methods on the DynamoDBContext class, the LIMIT clause …
Amazon’s DynamoDB is a wonderful product – scalable, durable, fast, with predictable latency numbers unlike SimpleDB. However, the only gripe I have with DynamoDB is that there is no built-in support for a query language, which makes life rather difficult when you want to perform a query or a scan against the data you have …
DynamoDb.SQL – a SQL-like external DSL for Amazon DynamoDB Read More »
If you’ve been using S3 client in the AWS SDK for .Net you might have noticed that there are no methods that let you interact with the folders in a bucket. As it turns out, S3 does not support folders in the conventional sense*, everything is still a key value pair, but tools such as …
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