What is Serverless?

Build applications comprised of microservices that run in response to events, auto-scale for you, and only charge you when they run. This lowers the total cost of maintaining your apps, enabling you to build more logic, faster. The Framework uses new event-driven compute services, like AWS Lambda, Google CloudFunctions, and more.
Serverless is a tool in the Serverless / Task Processing category of a tech stack.
Serverless is an open source tool with 30.5K GitHub stars and 3.4K GitHub forks. Here’s a link to Serverless's open source repository on GitHub

Who uses Serverless?

Companies
112 companies use Serverless in their tech stacks, including Droplr, Plista GmbH, and Hammerhead.

Developers
43 developers use Serverless.

Serverless Integrations

AWS Lambda, Amazon API Gateway, Azure Functions, Chromeless, and MoonMail are some of the popular tools that integrate with Serverless. Here's a list of all 8 tools that integrate with Serverless.

Why developers like Serverless?

Here’s a list of reasons why companies and developers use Serverless
Serverless Reviews

Here are some stack decisions, common use cases and reviews by companies and developers who chose Serverless in their tech stack.

Nitzan Shapira
Nitzan Shapira
at Epsagon · | 9 upvotes · 36.7K views
atEpsagon
AWS Lambda
GitHub
Java
Go
Node.js
npm
Serverless
Python

At Epsagon, we use hundreds of AWS Lambda functions, most of them are written in Python, and the Serverless Framework to pack and deploy them. One of the issues we've encountered is the difficulty to package external libraries into the Lambda environment using the Serverless Framework. This limitation is probably by design since the external code your Lambda needs can be usually included with a package manager.

In order to overcome this issue, we've developed a tool, which we also published as open-source (see link below), which automatically packs these libraries using a simple npm package and a YAML configuration file. Support for Node.js, Go, and Java will be available soon.

The GitHub respoitory: https://github.com/epsagon/serverless-package-external

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Michal Nowak
Michal Nowak
Co-founder at Evojam · | 6 upvotes · 21.4K views
atEvojam
Azure Functions
Firebase
AWS Lambda
Serverless

In a couple of recent projects we had an opportunity to try out the new Serverless approach to building web applications. It wasn't necessarily a question if we should use any particular vendor but rather "if" we can consider serverless a viable option for building apps. Obviously our goal was also to get a feel for this technology and gain some hands-on experience.

We did consider AWS Lambda, Firebase from Google as well as Azure Functions. Eventually we went with AWS Lambdas.

PROS
  • No servers to manage (obviously!)
  • Limited fixed costs – you pay only for used time
  • Automated scaling and balancing
  • Automatic failover (or, at this level of abstraction, no failover problem at all)
  • Security easier to provide and audit
  • Low overhead at the start (with the certain level of knowledge)
  • Short time to market
  • Easy handover - deployment coupled with code
  • Perfect choice for lean startups with fast-paced iterations
  • Augmentation for the classic cloud, server(full) approach
CONS
  • Not much know-how and best practices available about structuring the code and projects on the market
  • Not suitable for complex business logic due to the risk of producing highly coupled code
  • Cost difficult to estimate (helpful tools: serverlesscalc.com)
  • Difficulty in migration to other platforms (Vendor lock⚠️)
  • Little engineers with experience in serverless on the job market
  • Steep learning curve for engineers without any cloud experience

More details are on our blog: https://evojam.com/blog/2018/12/5/should-you-go-serverless-meet-the-benefits-and-flaws-of-new-wave-of-cloud-solutions I hope it helps 🙌 & I'm curious of your experiences.

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Dan Fesp
Dan Fesp
at aliadoc.com · | 5 upvotes · 19.5K views
atAliadoc
Bitbucket
Visual Studio Code
Serverless
Google Cloud Storage
Google App Engine
Cloud Functions for Firebase
Firebase
CloudFlare
Create React App
React
#Aliadoc

In #Aliadoc, we're exploring the crowdfunding option to get traction before launch. We are building a SaaS platform for website design customization.

For the Admin UI and website editor we use React and we're currently transitioning from a Create React App setup to a custom one because our needs have become more specific. We use CloudFlare as much as possible, it's a great service.

For routing dynamic resources and proxy tasks to feed websites to the editor we leverage CloudFlare Workers for improved responsiveness. We use Firebase for our hosting needs and user authentication while also using several Cloud Functions for Firebase to interact with other services along with Google App Engine and Google Cloud Storage, but also the Real Time Database is on the radar for collaborative website editing.

We generally hate configuration but honestly because of the stage of our project we lack resources for doing heavy sysops work. So we are basically just relying on Serverless technologies as much as we can to do all server side processing.

Visual Studio Code definitively makes programming a much easier and enjoyable task, we just love it. We combine it with Bitbucket for our source code control needs.

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Aviad Mor
Aviad Mor
CTO & Co-Founder at Lumigo · | 5 upvotes · 3.9K views
atLumigo
Serverless
CircleCI
AWS Lambda

Our backend is serverless based, with many AWS Lambda , with CI/CD, using CircleCI and Serverless. This allows to develop with awesome agility and move fast. Since we update our lambdas daily, we needed a way to make sure we did not run into AWS's max limit of versions per lambda. We use the open source in link below to clear them out and stay clear of the limit.

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Julien DeFrance
Julien DeFrance
Full Stack Engineering Manager at ValiMail · | 2 upvotes · 5.3K views
atSmartZip
Amazon SageMaker
Amazon Machine Learning
AWS Lambda
Serverless
#FaaS
#GCP
#PaaS

Which #IaaS / #PaaS to chose? Not all #Cloud providers are created equal. As you start to use one or the other, you'll build around very specific services that don't have their equivalent elsewhere.

Back in 2014/2015, this decision I made for SmartZip was a no-brainer and #AWS won. AWS has been a leader, and over the years demonstrated their capacity to innovate, and reducing toil. Like no other.

Year after year, this kept on being confirmed, as they rolled out new (managed) services, got into Serverless with AWS Lambda / FaaS And allowed domains such as #AI / #MachineLearning to be put into the hands of every developers thanks to Amazon Machine Learning or Amazon SageMaker for instance.

Should you compare with #GCP for instance, it's not quite there yet. Building around these managed services, #AWS allowed me to get my developers on a whole new level. Where they know what's under the hood. Where they know they have these services available and can build around them. Where they care and are responsible for operations and security and deployment of what they've worked on.

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Greg Ratner
Greg Ratner
Co-Founder, CTO at Troops · | 2 upvotes · 4.1K views
atTroops
Serverless
Amazon EC2
Kubernetes
Amazon EKS

We are moving all of our infrastructure to Amazon EKS on Kubernetes from our our Amazon EC2 hosts. This gives less management overhead, host security and networking and aides a lot of compliance headaches since it's a Serverless architecture.

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Serverless Alternatives & Comparisons

What are some alternatives to Serverless?
AWS Lambda
AWS Lambda is a compute service that runs your code in response to events and automatically manages the underlying compute resources for you. You can use AWS Lambda to extend other AWS services with custom logic, or create your own back-end services that operate at AWS scale, performance, and security.
Zappa
Zappa makes it super easy to deploy all Python WSGI applications on AWS Lambda + API Gateway. Think of it as "serverless" web hosting for your Python web apps. That means infinite scaling, zero downtime, zero maintenance - and at a fraction of the cost of your current deployments!
Cloud Functions for Firebase
Cloud Functions for Firebase lets you create functions that are triggered by Firebase products, such as changes to data in the Realtime Database, uploads to Cloud Storage, new user sign ups via Authentication, and conversion events in Analytics.
Google Cloud Functions
Construct applications from bite-sized business logic billed to the nearest 100 milliseconds, only while your code is running
Azure Functions
Azure Functions is an event driven, compute-on-demand experience that extends the existing Azure application platform with capabilities to implement code triggered by events occurring in virtually any Azure or 3rd party service as well as on-premises systems.
See all alternatives

Serverless's Stats