Processing Google reCaptcha Tokens in ASP.NET Core

Integrating a simple test to help prevent malignant input on your site is as simple as integrating a few lines of code into your website.

Now, if I could I’d pinch myself to make sure I’m not a robot, but I know very well that if I’m smart enough to think of that, they must have also programmed a sense of touch and pain into me as well. So testing to see if a website user is going to be even more daunting, because we can’t even pinch them.

Thankfully, the reCaptcha service offered by Google is free add-on to your site that will help to avoid bad data getting into your site, prevent malicious users from gaining access to your resources, and helping you to avoid unwanted side effects of bots that pile up junk data through your forms.

Read on to see how to get this all wired up in a Razor Pages application in ASP.NET Core. Heck, if you are in an MVC app or are building a Web API (or Azure Function) this would all still serve useful!

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Allocating a Serverless Database in SQL Azure

I’m pretty big on the SQL Azure Serverless SKU. It allows you to scale databases up and down automatically within a band of between 0.75 and 40 vCores on Gen5 hardware. It also supports auto-pausing which can shut down the entire database during periods of inactivity. I’m provisioning a bunch of databases for a client and we’re not sure what performance tier is going to be needed. Eventually we may move to an elastic pool but initially we wanted to allocate the databases in a serverless configuration so we can ascertain a performance envelope. We wanted to allocate the resources in a terraform template but had a little trouble figuring it out.

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Running Stored Procedures Across Databases in Azure

In a previous article I talked about how to run queries across database instances on Azure using ElasticQuery. One of the limitations I talked about was the in ability to update data in the source database. Well that isn’t entirely accurate. You can do it if you make use of stored procedures.

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Azure Processor Limits

Querying Across Databases In SQL Azure

I seem to be picking up a few projects lately which require migrating data up to Azure SQL from an on premise database. One of the things that people tend to do when they have on premise databases is query across databases or link servers together. It is a really tempting prospect to be able to query the orders database from the customers database. There are, of course, numerous problems with taking this approach not the least of which is making it very difficult to change database schema. We have all heard that it is madness to integrate applications at the database level and that’s one of the reasons.

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