Serverless Developer Guide
Connect to functions with Function URLs
A function URL is a dedicated HTTP(S) endpoint for your Lambda function. You can create and 
conﬁgure a function URL through the Lambda console or the Lambda API. When you create a 
function URL, Lambda automatically generates a unique URL endpoint for you. Once you create a 
function URL, its URL endpoint never changes. Function URL endpoints have the following format:
https://<url-id>.lambda-url.<region>.on.aws
After you conﬁgure a function URL for your function, you can invoke your function through its 
HTTP(S) endpoint with a web browser, curl, Postman, or any HTTP client.
Related resources:
• Function URLs - oﬃcial documentation
Additional resources
Oﬃcial AWS documentation:
• AWS Lambda Developer Guide - extensive and complete documentation for Lambda
Next steps
Learn serverless techniques in an online workshop
Learn by doing in the Serverless Patterns Workshop. The ﬁrst module introduces a 
serverless microservice to retrieve data from DynamoDB with Lambda and API Gateway. 
Additional modules provide practical examples of unit and integration testing, using 
infrastructure as code to deploy resources, and how to build common architectural patterns 
used in serverless solutions.
Additional resources 60