Deploy NestJS Serverless Apps to Azure Functions (2023)

FAQs

How do I deploy NestJS app to Azure? ›

During scale-out, there's currently a limit of 500 instances per subscription per hour for Linux apps on a Consumption plan. In some regions, Linux apps on a Premium plan can scale to 100 instances. For more information, see the Premium plan article.

For JavaScript, Python, and PowerShell apps, Durable timers are limited to six days. To work around this limitation, you can use the timer APIs in a while loop to simulate a longer delay.

Navigate to your app in the Azure portal and select Deployment Center under Deployment. Follow the instructions to select your repository and branch. This will configure a DevOps build and release pipeline to automatically build, tag, and deploy your container when new commits are pushed to your selected branch.

Importantly, Azure Functions is not designed to carry out multiple tasks. The service was created to perform one or very few tasks as fast as possible. Azure Functions is not recommended for infrequent, time-sensitive or long and computationally intensive tasks.

Functions in a Consumption plan are limited to 10 minutes for a single execution. In the Premium plan, the run duration defaults to 30 minutes to prevent runaway executions. However, you can modify the host.

A single function app only scales out to a maximum of 200 instances.

What is the maximum execution time for serverless? ›

If you work on a serverless project, you have probably run into the issue of AWS Lambda timeouts handling. Lambda functions are short lived; the Lambda max timeout is 900 seconds (15 minutes).

You can configure the functionTimeout in the host. json file to change the maximum duration of the execution time. In the Azure Portal, you can select you Function App, which contains your functions and under App Files, you can see the host. json file, which allows you to add or change properties.

Do not use NestJS if: You are building micro-services. The level of abstraction is too generic with overly simple examples in the documentation and it does not allow for the level of granular control needed.

NestJS will run on any generic-purpose hosting (Heroku, Vercel, AWS, etc). In your bootstrap function ( main. ts ) use the PORT env var: await app.

Use Azure Pipelines to automatically deploy your web app to Azure App Service on every successful build. Azure Pipelines lets you build, test, and deploy with continuous integration (CI) and continuous delivery (CD) using Azure DevOps. YAML pipelines are defined using a YAML file in your repository.

Right-click the console app project in Solution Explorer, and then select Publish as Azure WebJob. The Add Azure WebJob dialog box appears, with the project selected in the Project name box. Complete the Add Azure WebJob dialog box, and then select OK.

Functions and Logic Apps are Azure services that enable serverless workloads. Azure Functions is a serverless compute service, whereas Azure Logic Apps is a serverless workflow integration platform. Both can create complex orchestrations.

How do I deploy Azure function pipeline? ›

To create a build pipeline in Azure, use the az functionapp devops-pipeline create command. The build pipeline is created to build and release any code changes that are made in your repo. The command generates a new YAML file that defines the build and release pipeline and then commits it to your repo.

Azure Functions is a serverless solution that allows you to write less code, maintain less infrastructure, and save on costs. Instead of worrying about deploying and maintaining servers, the cloud infrastructure provides all the up-to-date resources needed to keep your applications running.

Azure Functions are best suited for smaller apps have events that can work independently of other websites. Some of the common azure functions are sending emails, starting backup, order processing, task scheduling such as database cleanup, sending notifications, messages, and IoT data processing.

But the way they create Azure Functions could be better. First off, they create one file per Azure Function in your solution. That's not an issue if you only have one Azure Function, but it can be problematic if you have many. However, you can get around this by putting multiple Azure Functions in the same file.

Azure Functions in the Consumption plan have a default timeout of 5 minutes and an upper limit of 10 minutes. If you need a longer timeout, you need to switch to a different plan, such as the Premium plan, which provides longer timeouts and dedicated resources.

Azure DNS and Azure Private DNS have a throttle limit of 500 read (GET) operations per 5 minutes.

Memory used by a function is measured by rounding up to the nearest 128 MB, up to the maximum memory size of 1,536 MB, with execution time calculated by rounding up to the nearest 1 ms. The minimum execution time and memory for a single function execution is 100 ms and 128 mb respectively.

Each instance of the function app, whether the app runs on the Consumption hosting plan or a regular App Service hosting plan, might process concurrent function invocations in parallel using multiple threads.

These functions are often combined into a single function app, but they can also run in separate function apps. In Premium and Dedicated (App Service) hosting plans, multiple function apps can also share the same resources by running in the same plan.

I understand that the limit is maximum 59 characters. When you put 59 characters in the function app name, it deploys successfully.

Is Azure obsolete? ›

This functionality will be fully retired on September 1, 2023. Today, about 90 percent of the IaaS VMs are using Azure Resource Manager.

Multiple apps in the same plan

Function apps in a given plan are all scaled together, so any issues with scaling can affect all apps in the plan.

Azure Functions are cheap. While most cloud services will send a monthly invoice based on how many resources you've provisioned, Azure Functions only bill you for the resources you actively consume. Cost is based on execution time and memory usage for each function invocation.

This is because Serverless Functions have a payload limit of 4.5mb for request and response bodies.

The TimerInfo object is passed into the function. The following example function triggers and executes every five minutes. The @TimerTrigger annotation on the function defines the schedule using the same string format as CRON expressions.

For some reason, 1 function takes between 2 to 20 minutes to deploy.

How to deploy NestJS API free? ›

Cons for using the NestJS framework

At some point, most NestJS projects will encounter circular dependencies. This problem is well-documented by both Nest and the community package nestjs-spelunker, which focuses on the overall dependency injection tree.

js is a minimalistic framework that contains all the necessary features to create an application using React. On the other hand, Nest. js is not just a framework but an entire platform for building server-side applications using TypeScript and Node. js.

The native version is 42% faster. In my experience, the difference in real applications is even greater. But that also has to do with the fact that we can optimize the application structure better than with Nest.

How do I deploy a NodeJS app on Azure DevOps? ›

You can also deploy the VM application to currently running VMs. Select the Extensions + applications option under Settings in the left menu when viewing the VM details in the portal. Choose VM applications and then select Add application to add your VM application.

Should I use npm install or npm CI? ›

json file, ensuring a clean and consistent installation. In conclusion, npm ci is a command that developers should consider using instead of npm install for their Node. js projects. It provides consistency, speed, predictability, and automation benefits, making it a valuable tool for any development team.