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In this video, we are going to understand how rest API triggered a lambda with even an object.

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And after that we will develop our lambda function with incoming event from the rest API.

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So we will in this stage we will get the event JSON object from rest API to a lambda with different

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active methods, get product, get product, buy ID, post product, delayed product ID.

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We will get all these events, objects and the loop are a lambda function.

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So let's get started.

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In order to do that, I'm going to create an EVE lecture folder into our visual code.

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So as you can see that we will send these requests to our API, Gateway Rest API and we will call this

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event get get py ID and post JSON document.

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So let's get started.

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In order to do that, in the last video we have invoke our API, we digital copy this URL, you can

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copy from the API gateway.

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Also go to API Gateway and get the ID from here.

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Let me show copy product API.

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If you go to the product and get you can get the ID from in here.

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Let me go to the stage under the plot, under the product, in the get method, you can see the inaugural

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copy this URL and go to the postman.

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So we will perform a HTTP, get operation to the product and click the send button.

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So this will respond back to us.

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Hello from Lambda because we didn't implement Lambda function yet, but it is we will collect the incoming

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event JSON.

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So go to lambda function to get this HTTP, get product method log information for that purpose, go

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to lambda function and go to monitoring v cloud watch looks.

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And go to the latest lucid dream and come here as remember that we are put to console log operation

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into our lambda function.

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So that's why we can copy incoming event and pass to our.

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We used to do code event, get JSON file, go on top of this page, remove the first line and save this

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JSON file.

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As you can see that this is the get product operation from rest API to Lambda function and see that

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the parameters are really different from the HTTP API.

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This time we have resource, PID and HTTP method that we can understand.

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This is the gate product method and if you scroll down, you can see different and additional delays

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in here.

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For example, query parameters, request context.

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If you scroll down by the information and so on, this is a bit different from triggering the HTTP API.

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This time we will take it from the rest API and we will consider about these important parameters which

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are the HTP method, pet parameters and setting parameters, resource, PET and so on.

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So let's continue to our test to complete all JSON files.

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So let me go back to Postman and copy this URL, create any request.

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And this time I'm going to send, for example, different ID information if I get the query string,

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for example, category equal form.

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Let's see how it is triggered to our lambda function.

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Eat the send button.

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So as you can set this, return the same text message.

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And now let's see the latest looks for the purpose.

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Go to cloud voice logs, go to product function, open the latest log stream and copy from the last

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log stream.

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Copy from here and open the our visitor code and paste in here.

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Get by ID.

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On top of this page, remove the first line, save this file.

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So as you can see that this time I have in tested product get product by ID so resource and pet is seems

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different way and this time if you scroll down we can see create setting parameters and if you scroll

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down we can also see pet parameters.

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So we understand how the trigger from the rest API and how we can get these parameters from these events

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and file.

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Let's continue to our test.

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So if you check the command text, we will follow these two one and now I am going to send a post payload

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for that purpose.

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Go to our postman copy URL from here, create new request and paste in here.

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This will be post method, so change the method as a post.

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And now we are going to set body information, body roll, JSON and copy from our payload in here.

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We can put the run on payload.

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Also, it is not important since we didn't develop the product lambda function OC just sent the HTTP

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post request to the product domain.

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Yes, the text message comes successfully.

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That means lambda function invoke successfully.

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Go to cloud watch logs and come to latest look.

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Copy from the latest look and taste to the hour, which is the code to the event post JSON, go on top

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and remove design.

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This time you can see the method is post and the resource is product.

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If you scroll down this time you will see the body information in here we will.

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These body parts, this information and use this information when using post operation into the product

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domain.

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Okay, very good.

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As you can see that we have sent different parameters and different ways to our application lambda function

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and see incoming event json object.

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So the important parameter is in here resource pet and estimated and we can also check the parameters

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in the get by ID and we can also check the information when we send the post information.

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So if there is a post request, we should pass the information in order to get payload and insert product

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record.

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As you can see that we have understood how this API triggered the lambda function with even JSON object.

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Now it is time to develop our lambda function with these payloads.