Deploy a Spring Boot Application to AWS Lambda with an API Gateway

In this video, I explain how to deploy a Spring Boot application to AWS Lambda. With Spring Boot, I can create several endpoints, so I need an API Gateway to create a proxy from a single URL to many endpoints inside my AWS Lambda.
This video belongs to a playlist where I show how to deploy Spring Boot applications to several AWS services: studio.youtube...
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[@vasylbielozertsev5861]

Very helpful video! I couldn't run the Lambda function for a long time. I followed the recommendations from the video, and everything started working.

[@TheDevWorldbySergioLema]

I'm so happy it helped you!

[@Jaksteroide]

I came from the "Spring Boot y Java en español" Facebook community... And I have to say that It was a very useful video to give me a brief idea of how aws lambda and spring boot deployment process works. New sub here!

[@TheDevWorldbySergioLema]

Thank you! I try my best

[@fipabrate]

awesome video!

[@TheDevWorldbySergioLema]

Thank you!

[@fipabrate]

@@TheDevWorldbySergioLema i don't know why i get build.gradle when i create maven archtype project :/ Currently I'm trying to test my app with aws toolkit plugin before deploying it. Don;t know what i am doing but here goes nothing 🥲

[@johncerpa3782]

Great video

[@TheDevWorldbySergioLema]

Thanks John!

[@JohnBrosan]

Great video! I am wondering if you have the template file for AWS SAM do you need to create and upload the lambda? SAM should do that for you. I am currently working on a DynamoDB trigger and would like to have the Spring features you mentioned along with AWS SAM to deploy. SAM init, uses the old AWS SDK for Java and not AWS SDK for Java 2.x unless there is something I am doing wrong.

[@TheDevWorldbySergioLema]

The SAM template is available in the Github repository of the project. I didn't use it because I wanted to explain step by step all the services used.

[@JohnBrosan]

@@TheDevWorldbySergioLema Fantastic! Thank you! I look forward to more of your content. :-D

[@perek3226]

Hi man, great video! I have a question, you've created a maven archetype project and using ready dependencies. What if I already have ready Spring Boot project? I don't want recreate whole project with a lot of dependencies, connected DB and other. What I need to do then? Thank you

[@TheDevWorldbySergioLema]

Hi, you need to create the main method according the my project, add the StreamLambdaHandler, and the Maven dependencies to build the JAR or ZIP file

[@perek3226]

@@TheDevWorldbySergioLema will it work if I am using Gradle as my building system?

[@TheDevWorldbySergioLema]

Yes, using Gradle or Maven changes nothing about the application nor the packaging. What you must change is the way the plugins and dependencies are fetch. I remember when building the archetype that both the pom.xml and gradle.build are available.

[@daribo1]

How do you deal with coldstart? Normally the instance is being shutdown after apporox. 5-7 minutes. Is it possible to keep it alive for not having long responses in between?

[@TheDevWorldbySergioLema]

I haven't found a solution for that.

[@darshanmestry9343]

How to run this project locally to test the APIs?

[@TheDevWorldbySergioLema]

It's hard to do it, because, by default, you exclude the Tomcat webserver from Spring Boot. This means that you can't run it in your laptop. What I do, create unit tests that request the endpoints.

[@PorkyPrank]

If I deploy telegram bot using spring boot, the process is the same?

[@TheDevWorldbySergioLema]

I've never tried something like this. I don't know