Observability Glossary

Azure Functions

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Azure Functions are a serverless computing service provided by Microsoft Azure, enabling developers to run event-triggered code without the need to manage infrastructure.

For example, you can create a function that is triggered by changes in a specific database table. When a new record is added to the table, the function is automatically executed, processing the new data without the need to provision or manage servers.

One of the key benefits of Azure Functions is their ability to scale automatically based on demand. As more events occur, additional instances of the function can be spun up to handle the workload, ensuring that the application remains responsive without any manual intervention. This scalability is especially useful for applications with unpredictable or fluctuating workloads, as it helps to optimize resource utilization and minimize costs.

Here's an example of a simple Azure Function written in JavaScript that responds to an HTTP request:

module.exports = async function (context, req) {
  context.log(`Http function processed request for url "${request.url}"`);

  return {
    status: 200,
    jsonBody: {
        env: process.env
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