---
title: "Deploy & Validate Your Tracing"
weight: 79
---

### Deploy your application

```sh
cd ~/environment/serverless-observability-workshop/code/sample-app-tracing
sam build
sam deploy
```

### Test the APIs 

#### Export the stack output variables

To invoke our API's, we first need to fetch the `ApiUrl` output variable that our CloudFormation stack gives us. So let us iterate through our stack and export all output variables as environment variables:

```sh
export ApiUrl=$(aws cloudformation describe-stacks --stack-name monitoring-app-tracing --output json | jq '.Stacks[].Outputs[] | select(.OutputKey=="ApiUrl") | .OutputValue' | sed -e 's/^"//'  -e 's/"$//')
echo "export ApiUrl="$ApiUrl
```

#### Test the `Put Item` operation

```sh
curl -X POST \
  $ApiUrl/items/ \
  -d '{
        "id":"5",  
        "name": "Fifth test item"
  }'

curl -X POST \
  $ApiUrl/items/ \
  -d '{
        "id":"6",  
        "name": "Sixth test item"
  }'
```

#### Test the `Get All Items` operation

```sh
curl -X GET $ApiUrl/items/ | jq
```

#### Test the `Get Item by Id` operation

```sh
curl -X GET $ApiUrl/items/5 | jq
curl -X GET $ApiUrl/items/6 | jq
```

### Validate the result

Go to [ServiceLens Traces](https://console.aws.amazon.com/cloudwatch/home?#servicelens:traces) page.

Scroll to the **Refine query by** dropdown and select **User annotations**. You are now able to visualize the three different annotations we created as additional filters for your traces.

![Service Lens](/images/subsegment_1.png)

To refine your query you can add conditions on user annotations.
For example, to filter only the traces with a **Status** annotation equal to **SUCCESS** you can

- Select **Status** from the list of User annotations.
- Click **Add to query**. This will add the selected annotation as an extra filter in the query textarea.
- Edit the query adding the condition **= "SUCCESS"**.
- Click on **Run query**.

![Service Lens](/images/subsegment_2.png)

- Click one of the traces for **POST** HTTP Method.

![Service Lens](/images/subsegment_3.png)

This time, you will be able to see the additional subsegments we created are now appearing with its respective response times.

![Service Lens](/images/subsegment_4.png)

- Click the **## Handler** subsegment and scroll down to `Segment details` area. You should be able to see the custom annotations you added inside that subsegment.

![Service Lens](/images/subsegment_5.png)

- Click the **## putItemData** subsegment and scroll down to `Segment details` area. You should be able to see the custom metadata you added inside that subsegment.

![Service Lens](/images/subsegment_6.png)

{{% notice tip %}}
Spare a couple minutes to analyze the Service Map and Traces for the **Get Item By Id** and **Get All Items** as well.
{{% /notice %}}