How to Create an API in AWS | API Gateway | Lambda | DynamoDB | Java

In this tutorial, we will create a serverless API that creates, reads, updates, and deletes items from a DynamoDB table.
DynamoDB is a fully managed NoSQL database service that provides fast and predictable performance with seamless scalability. This tutorial takes approximately 55 minutes to complete, and you can do it within the AWS Free Tier.
First, we create a Lambda function using the AWS Lambda console. Then we create a DynamoDB table using the DynamoDB console. Next, we create REST API using the API Gateway console. Lastly, we test the API.
When we invoke our REST API, API Gateway routes the request to your Lambda function. The Lambda function interacts with DynamoDB, and returns a response to API Gateway. API Gateway then returns a response to the user.
#aws #awstutorial #java

[@user-zc4jk7uo4h]

One of the best tutorial with complete in-depth knowledge. Thanks Mir for making things simple and crisp .

[@sudhakartadepalli2523]

One of the best tutorials. Thank you so much!!

[@TVrook]

Amazing tutorial, really well explained. Understood everything!! Thank you :)

[@aspaksharif4376]

This is a hidden #Gem....thank you, keep up the good work.

[@petertaylor9763]

Video cover lotta different items that I wanted to learn thanks so much!

[@pwm.]

Glad it was helpful!

[@fidelvillanueva6422]

Amazing tutorial, please continue upload more videos with AWS and Java. Spring boot.

[@vimalv6341]

A very good Tutorial for a beginner. Keep it up. God bless you. 🙂

[@borispustilnik8900]

Thank you! It's very helpful!

[@pwm.]

Glad it was helpful!

[@Confusedcapybara8772]

I dig the note style approach

[@John-ug3il]

Thank you, very help full.

[@pwm.]

Glad it helped

[@juanpablodavilabedoya5025]

that's a great tutorial, thanks u very much

[@AjayRam-ts5iv]

Thanks for this video it is very useful for my project

[@pwm.]

Most welcome 😊

[@pwm.]

Thanks for watching. If you liked this video, make sure to subscribe for more!

[@thevagabond85yt]

I think to handle GET,POST,PUT different methods... we dont need to create as many times uber-jar.
We need to create 1 handlre per methods i.e differnt handler for PUT and diff for GET..... but jars need not be complied separately every time . there can be 1 jar with all lambda functions in one.

[@stephenlflf3871]

Gold!

[@mdlwlmdd2dwd30]

It would be nice, if you show how to debug locally as you go. There is none in production will just go straight deploying code without checking the progress

[@leonardolopezlarraquy1403]

Excellent tutorial @ankit!!
I understand that the method being call of the Java class is being done through reflection. I does not make any sense to me the use of the interface with this signature
public interface RequestStreamHandler {
/**
* Handles a Lambda Function request
* @param input The Lambda Function input stream
* @param output The Lambda function output stream
* @param context The Lambda execution environment context object.
* @throws IOException
*/
public void handleRequest(InputStream input, OutputStream output, Context context) throws IOException;
}
Am I correct?

[@avinashshrivastava1512]

In infra module you created something else could you please provide link?

[@nolediganamimadre5714]

you have to add audio...I think. Great Tutorial!

[@pwm.]

Noted!

[@subashkc2470]

@@pwm. Yes, this is a great Tutorial. Plzz add audio coz this great videos deserve more likes and support.

[@himanshusingh9050]

Great video, just have small question do we need to create separate lambda for all the request methods , can we do it using only one lambda?

[@pwm.]

You can use one lambda but then you have to use spark for aws.

[@rohinit6249]

@Programming with Mir Could you please help me with tutorial text file u wrote on the notepad

[@carlellis9647]

I don't know why he doesn't use the APIGatewayProxyRequestEvent as the input for the handler function. It would save a huge amount of coding in terms of not having to go through the InputStream and do all that work to get the data and the headers.

[@varunvijaywargi5497]

Agree @Carl.

[@avinashshrivastava1512]

Hello bro need help on aws lamda productApi code it's not here

[@rajeevtripathi8607]

Excellent Video. Would it be possible to share the code ?

[@richasingh3424]

Could you please share the git url for the code base, would be a great help

[@pwm.]

github.com/programmingwithmir/pwm-crud-api

[@uyenthanh3794]

@@pwm. thank you .

[@user-tv2sl5se4o]

Can you share us github url of your code base

[@PankajVLOGZZz]

Can we do with one lambda function?

[@pwm.]

Yes, you can but its best practice to keep things seperate. As your code grow and add more routes, your Lambda function grows in size and deployments of new versions replace the entire function. It becomes harder for multiple developers to work on the same project.

[@PankajVLOGZZz]

@@pwm. And how to generate id automatically

[@pwm.]

@@PankajVLOGZZz You can use UUID as your key - possibly time based UUID which makes it unique
or
Use randomly generated number + timestamp

[@PankajVLOGZZz]

Actually I tried with one lambda with one handler method but when I am doing get product it's getting the product then deleting it as I merge everything into one method.. do I need switch case to implement?
Can you help with that !?

[@pwm.]

@@PankajVLOGZZz you need to differentiate the calls. You can check the request method and work accordingly. For example, if the request method is GET then only return the product, if POST then add the product etc. Hope this help

[@pramodbasu7732]

getting no class found exception

[@pwm.]

Make sure function handler name is correct in aws

[@user-tv2sl5se4o]

git hub url please

[@berkcan3475]

youtuber still couldnt understand importance of sharing github repository of the video, hilarious

[@juliodeveloper.]

Indeed!

[@pss6957]

Good but no explanation.

[@jerin4492]

[@shivampal8449]

Bhai lambda function me code test me error aa rii h , not invoking api. Apna contact number do.