Maik van der Gaag • 10/8/2025

Build a Custom Extension for Bicep

This technical article explains how to build a custom local extension for Bicep, Microsoft's infrastructure-as-code language. It details the creation of an HTTP extension that allows Bicep templates to make API calls (GET, POST, PUT, DELETE, PATCH), enabling scenarios like updating a CMDB or fetching external data during deployments. The post walks through the code structure, key components like the Program.cs file and resource identifiers, and provides a practical example based on the author's open-source 'bicep-ext-http' project.

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#Azure #Infrastructure As Code #Dotnet