Build scalable services
Optimize code execution time by selecting the memory and vCPU needed for your function. As traffic increases, your service will automatically adapt and scale to deliver seamless performance to your customers.
Serverless Functions
Experience an easy way to run your code on the cloud.
Build applications quicker
Serverless Functions allows the automatic and flexible scaling of your workload, allowing you to focus on building your applications instead of spending time managing your infrastructure.
Multi-cloud compatible
Your functions run on Knative, the open-source serverless framework for Kubernetes. They'll work with any provider, on any machine.
Popular use cases
Automate IT operations
Focus on high added-value activities by automating your infrastructure management operations, such as provisioning, scaling, and cleaning.
Integrate third-party services
Extend the capabilities of application by integrating microservices to control sending confirmation emails, SMSes and triggering payments.
File & data processing
Execute code to process data or transform files stored on Object Storage as scheduled or in response to triggers.
Key features
Usage-based pricing
Billing is dependent on the number of requests and consumed resources (memory). Only pay when your functions are running.
Scalable & No servers
Serverless Functions runs your code without you needing to provision or manage any infrastructure.
Write your code, transfer it to Serverless Functions, and it runs and scales up or down automatically.
Supports various languages
We support Node.js, Go, Python, PHP and Rust. You can choose your programming language to fit your application scenarios.
Custom domains
Choose the domains associated with Serverless Functions and map your services to the domain you need to allocate to your functions.
Triggers
Trigger your function using synchronous HTTP calls to the function URL, Schedule execution using CRON or start your function asynchronously using message queues and event-driven patterns.
Security
Serverless Functions provides a secure-by-default environment by managing all underlying infrastructure, including OS patching and security configurations. Each service runs within a strong sandbox for kernel-level isolation from other workloads. You can use VPC Service Controls to create a security perimeter and use secrets for sensitive data.
Easy start with great UX
Manage your services by making development logic more flexible
Why choose Scaleway?
Our European, multi-cloud & open source DNA
Based in France with builders and customers all over the world, our services are located within the European Union and protected by its regulations.
Sustainable by design
100% of electricity consumed in our data centers comes from renewable energy. Decommissioned hardware are securely reused & recycled.
24/7 Ticket support
Our technical assistance is available 24/7 to answer all your questions and assist you. Upgrade your support plan to reach our assistance team directly by phone.
Transparent & predictable billing
Our services are designed to offer you the best price/performance ratio, with straightforward billing to grow your business and keep your expenses under control.
Changelog
Serverless Functions
- fixed
Improved memory metric accuracy for sandbox v2
We have implemented a fix to improve the accuracy of memory usage metrics for Serverless Functions services. This update resolves a previous reporting inconsistency to ensure that metrics more precisely reflect actual resource consumption.
What changed: We refined the underlying calculation used to report memory usage.
What to expect: You may notice that memory metrics in your dashboards and views appear slightly lower than before. This is an expected result of the improved measurement accuracy, and does not indicate a change in your application's actual performance or resource allocation.
Scope: This fix applies exclusively to services using sandbox
v2.
No action is required on your part.
- changed
Environment variables and secret variables limit increase
The maximum number of environment variables and secret environment variables has been increased from 100 to 200.
- fixed
Improved cold start for Serverless Functions attached to Private Networks
Optimizations have been applied to Serverless Functions connected to Private Networks to address significant cold start latency. Startup times have now been reduced.
- changed
Serverless Functions - Authentication for private resources via IAM
Serverless Functions uses a product-specific authentication method based on JWT to authenticate requests for private endpoints. It is now possible to use the new IAM policy
FunctionsPrivateAccess.Previous authentication method based on JWT will be deprecated gradually. Follow How to migrate from JWT to IAM authentication for private functions.
- changed
Serverless Function Test tab Update
The Testing tab for Serverless Functions has been updated to replace the in-browser test request system with a ready-to-use curl command. This change aims to avoid browser-induced limitations that can cause CORS errors.
Get started with tutorials
Getting started with Serverless FunctionsLearn more
Use Serverless Functions with Private NetworksLearn more
Examples of Serverless FunctionsLearn more
Frequently asked questions
What is Scaleway Serverless Functions?
Serverless Functions is a service which enables you to execute small components (functions, code snippets) in the cloud with no need for server management.
Why should I use Serverless Functions?
If you want to deploy simple functions or components (either in a microservices application, to automate cloud operation, or to connect services) then Serverless Functions is for you!”
What use cases does Scaleway Serverless Functions support?
We recommend using Scaleway Serverless Functions to handle asynchronous tasks such as media or data transformation, infrastructure management automation. If your use case requires low latency, you can provision resources using the minimum scale feature.
Which programming languages and runtimes are supported?
We natively support the most popular languages in the industry, including Python, Node.js, Go, PHP, and Rust. For each language, we provide multiple runtime versions that are regularly updated to ensure security and performance. If your project requires a specific language or a version not natively supported, we recommend using Serverless Containers for total environment flexibility.
Can I securely connect my functions to other Scaleway services?
Yes. Serverless Functions are deeply integrated into the Scaleway ecosystem. You can easily connect your functions to our Managed Databases, Object Storage, or Messaging and Queuing (NATS). Furthermore, you can attach your functions to a VPC (Virtual Private Cloud), allowing them to communicate securely and privately with your other cloud resources.
How does automatic scaling work with Serverless Functions?
One of the greatest advantages of Serverless Functions is its ability to scale instantly and automatically. Your function can scale from "zero to infinity" (within your defined limits) based on the number of incoming requests. If there is no traffic, no instances are active. When a request arrives, an instance is spun up to handle it. You can also configure a minimum number of instances (min-scale) to eliminate "cold starts" for latency-critical services.
Where can I find the SLA (Service Level Agreement) for this product?
You can find the SLA for this product here.
How are Serverless Functions billed compared to a traditional Instance?
Unlike an Instance which is billed by the hour regardless of usage, Serverless Functions are billed by the millisecond of execution time and the number of requests. We also offer a generous Free Tier every month. This is the most cost-effective model for intermittent or unpredictable workloads, as you pay strictly for the compute time used, eliminating any waste of idle resources.