Passo a passo - Parte 2

nota

O AWS Solutions Constructs é compatível com versões ≥ 1.46.0 do AWS.

Este tutorial mostra como modificar o aplicativo “Hello Constructs” criado emparte 1. Nossa modificação adicionará um contador de visitas ao site usando o padrão AWS Lambda ao DynamoDB de Constructs de soluções da AWS. Modificar o aplicativo Hello Constructs resultará na seguinte solução:

Código do Lambda do contador

Vamos começar escrevendo o código para a função Hit Counter AWS Lambda. Essa função irá:

• incrementar um contador relacionado ao caminho da API em uma tabela do Amazon DynamoDB,

• invocar a função downstream Hello AWS Lambda,

• e retorne a resposta ao usuário final.

TypeScript

Adicionar um arquivo chamadolambda/hitcounter.jscom o seguinte conteúdo:

  const { DynamoDB, Lambda } = require('aws-sdk');

exports.handler = async function(event) {
  console.log("request:", JSON.stringify(event, undefined, 2));

  // create AWS SDK clients
  const dynamo = new DynamoDB();
  const lambda = new Lambda();

  // update dynamo entry for "path" with hits++
  await dynamo.updateItem({
    TableName: process.env.DDB_TABLE_NAME,
    Key: { path: { S: event.path } },
    UpdateExpression: 'ADD hits :incr',
    ExpressionAttributeValues: { ':incr': { N: '1' } }
  }).promise();

  // call downstream function and capture response
  const resp = await lambda.invoke({
    FunctionName: process.env.DOWNSTREAM_FUNCTION_NAME,
    Payload: JSON.stringify(event)
  }).promise();

  console.log('downstream response:', JSON.stringify(resp, undefined, 2));

  // return response back to upstream caller
  return JSON.parse(resp.Payload);
};
          

Python

Adicionar um arquivo chamadolambda/hitcounter.pycom o seguinte conteúdo:

import json
import os
import boto3

ddb = boto3.resource('dynamodb')
table = ddb.Table(os.environ['DDB_TABLE_NAME'])
_lambda = boto3.client('lambda')


def handler(event, context):
    print('request: {}'.format(json.dumps(event)))
    table.update_item(
        Key={'path': event['path']},
        UpdateExpression='ADD hits :incr',
        ExpressionAttributeValues={':incr': 1}
    )

    resp = _lambda.invoke(
        FunctionName=os.environ['DOWNSTREAM_FUNCTION_NAME'],
        Payload=json.dumps(event),
    )

    body = resp['Payload'].read()

    print('downstream response: {}'.format(body))
    return json.loads(body)
          

Instalar as novas dependências

nota

Lembre-se de substituir a versão correta e correspondente a ser usada para construções de soluções da AWS e para o CDK da AWS noVERSION_NUMBERcampos de espaço reservado para cada comando. Isso deve ser idêntico ao número de versão usado para dependências na primeira parte deste passo a passo. Versões incompatíveis entre pacotes podem causar erros.

Como de costume, primeiro precisamos instalar as dependências necessárias para a atualização da nossa solução. Primeiro, precisamos instalar a biblioteca de construção do DynamoDB:

TypeScript

      npm install -s @aws-cdk/aws-dynamodb@VERSION_NUMBER
          

Python

      pip install aws_cdk.aws_dynamodb==VERSION_NUMBER
          

Por fim, instale os Construtos de soluções da AWSaws-lambda-dynamodbe todas as suas dependências em nosso projeto:

TypeScript

      npm install -s @aws-solutions-constructs/aws-lambda-dynamodb@VERSION_NUMBER
          

Python

      pip install aws_solutions_constructs.aws_lambda_dynamodb==VERSION_NUMBER   
          

Defina os recursos

Agora, vamos atualizar nosso código de pilha para acomodar nossa nova arquitetura.

Primeiro, vamos importar nossas novas dependências e mover a função “Olá” para fora doaws-apigateway-lambdapadrão que criamos na parte 1.

TypeScript

Editar o arquivolib/hello-constructs.tscom o seguinte:

import * as cdk from '@aws-cdk/core';
import * as lambda from '@aws-cdk/aws-lambda';
import * as api from '@aws-cdk/aws-apigateway';
import * as dynamodb from '@aws-cdk/aws-dynamodb';
import { ApiGatewayToLambda, ApiGatewayToLambdaProps } from '@aws-solutions-constructs/aws-apigateway-lambda';
import { LambdaToDynamoDB, LambdaToDynamoDBProps } from '@aws-solutions-constructs/aws-lambda-dynamodb';

export class HelloConstructsStack extends cdk.Stack {
  constructor(scope: cdk.Construct, id: string, props?: cdk.StackProps) {
    super(scope, id, props);

    // The code that defines your stack goes here

    const helloFunc = new lambda.Function(this, 'HelloHandler', {
      runtime: lambda.Runtime.NODEJS_12_X,
      code: lambda.Code.fromAsset('lambda'),
      handler: 'hello.handler'
    });

    const api_lambda_props: ApiGatewayToLambdaProps = {
      lambdaFunctionProps: {
        code: lambda.Code.fromAsset('lambda'),
        runtime: lambda.Runtime.NODEJS_12_X,
        handler: 'hello.handler'
      },
      apiGatewayProps: {
        defaultMethodOptions: {
          authorizationType: api.AuthorizationType.NONE
        }
      }
    };

    new ApiGatewayToLambda(this, 'ApiGatewayToLambda', api_lambda_props);
  }
}
          

Python

Editar o arquivohello_constructs/hello_constructs_stack.pycom o seguinte:

from aws_cdk import (
    aws_lambda as _lambda,
    aws_apigateway as apigw,
    aws_dynamodb as ddb,
    core,
)

from aws_solutions_constructs import (
    aws_apigateway_lambda as apigw_lambda,
    aws_lambda_dynamodb as lambda_ddb
)

class HelloConstructsStack(core.Stack):

    def __init__(self, scope: core.Construct, id: str, **kwargs) -> None:
        super().__init__(scope, id, **kwargs)

        # The code that defines your stack goes here

        self._handler = _lambda.Function(
          self, 'HelloHandler',
          runtime=_lambda.Runtime.PYTHON_3_7,
          handler='hello.handler',
          code=_lambda.Code.asset('lambda'),
        )

        apigw_lambda.ApiGatewayToLambda(
            self, 'ApiGatewayToLambda',
            lambda_function_props=_lambda.FunctionProps(
                runtime=_lambda.Runtime.PYTHON_3_7,
                code=_lambda.Code.asset('lambda'),
                handler='hello.handler',
            ),
            api_gateway_props=apigw.RestApiProps(
                default_method_options=apigw.MethodOptions(
                    authorization_type=apigw.AuthorizationType.NONE
                )
            )
        )
          

Em seguida, vamos adicionar oaws-lambda-dynamodbpadrão para construir o serviço de contador de sucesso para nossa arquitetura atualizada.

A próxima atualização abaixo define as propriedades para oaws-lambda-dynamodbdefinindo a função do AWS Lambda com o manipulador Hit Counter. Além disso, a tabela do Amazon DynamoDB é definida com um nome deHitse uma chave de partição dopath.

TypeScript

Editar o arquivolib/hello-constructs.tscom o seguinte:

import * as cdk from '@aws-cdk/core';
import * as lambda from '@aws-cdk/aws-lambda';
import * as api from '@aws-cdk/aws-apigateway';
import * as dynamodb from '@aws-cdk/aws-dynamodb';
import { ApiGatewayToLambda, ApiGatewayToLambdaProps } from '@aws-solutions-constructs/aws-apigateway-lambda';
import { LambdaToDynamoDB, LambdaToDynamoDBProps } from '@aws-solutions-constructs/aws-lambda-dynamodb';

export class HelloConstructsStack extends cdk.Stack {
  constructor(scope: cdk.Construct, id: string, props?: cdk.StackProps) {
    super(scope, id, props);

    // The code that defines your stack goes here

    const helloFunc = new lambda.Function(this, 'HelloHandler', {
      runtime: lambda.Runtime.NODEJS_12_X,
      code: lambda.Code.fromAsset('lambda'),
      handler: 'hello.handler'
    });

    // hit counter, aws-lambda-dynamodb pattern
    const lambda_ddb_props: LambdaToDynamoDBProps = {
      lambdaFunctionProps: {
          code: lambda.Code.asset(`lambda`),
          runtime: lambda.Runtime.NODEJS_12_X,
          handler: 'hitcounter.handler',
          environment: {
              DOWNSTREAM_FUNCTION_NAME: helloFunc.functionName
          }
      },
      dynamoTableProps: {
          tableName: 'Hits',
          partitionKey: { name: 'path', type: dynamodb.AttributeType.STRING }
      }
    };

    const hitcounter = new LambdaToDynamoDB(this, 'LambdaToDynamoDB', lambda_ddb_props);

    const api_lambda_props: ApiGatewayToLambdaProps = {
      lambdaFunctionProps: {
        code: lambda.Code.fromAsset('lambda'),
        runtime: lambda.Runtime.NODEJS_12_X,
        handler: 'hello.handler'
      },
      apiGatewayProps: {
        defaultMethodOptions: {
          authorizationType: api.AuthorizationType.NONE
        }
      }
    };

    new ApiGatewayToLambda(this, 'ApiGatewayToLambda', api_lambda_props);
  }
}
          

Python

Editar o arquivohello_constructs/hello_constructs_stack.pycom o seguinte:

from aws_cdk import (
    aws_lambda as _lambda,
    aws_apigateway as apigw,
    aws_dynamodb as ddb,
    core,
)

from aws_solutions_constructs import (
    aws_apigateway_lambda as apigw_lambda,
    aws_lambda_dynamodb as lambda_ddb
)

class HelloConstructsStack(core.Stack):

    def __init__(self, scope: core.Construct, id: str, **kwargs) -> None:
        super().__init__(scope, id, **kwargs)

        # The code that defines your stack goes here

        self.hello_func = _lambda.Function(
          self, 'HelloHandler',
          runtime=_lambda.Runtime.PYTHON_3_7,
          handler='hello.handler',
          code=_lambda.Code.asset('lambda'),
        )

        #  hit counter, aws-lambda-dynamodb pattern
        self.hit_counter = lambda_ddb.LambdaToDynamoDB(
            self, 'LambdaToDynamoDB',
            lambda_function_props=_lambda.FunctionProps(
                runtime=_lambda.Runtime.PYTHON_3_7,
                code=_lambda.Code.asset('lambda'),
                handler='hitcounter.handler',
                environment={
                    'DOWNSTREAM_FUNCTION_NAME': self.hello_func.function_name
                }
            ),
            dynamo_table_props=ddb.TableProps(
                table_name='Hits',
                partition_key={
                    'name': 'path',
                    'type': ddb.AttributeType.STRING
                }
            )
        )

        apigw_lambda.ApiGatewayToLambda(
            self, 'ApiGatewayToLambda',
            lambda_function_props=_lambda.FunctionProps(
                runtime=_lambda.Runtime.PYTHON_3_7,
                code=_lambda.Code.asset('lambda'),
                handler='hello.handler',
            ),
            api_gateway_props=apigw.RestApiProps(
                default_method_options=apigw.MethodOptions(
                    authorization_type=apigw.AuthorizationType.NONE
                )
            )
        )
          

Em seguida, precisaremos conceder a função Contador de Hits criada a partir doaws-lambda-dynamodbpadrão adicionado acima permissão para invocar nossa função Hello.

TypeScript

Editar o arquivolib/hello-constructs.tscom o seguinte:

  import * as cdk from '@aws-cdk/core';
import * as lambda from '@aws-cdk/aws-lambda';
import * as api from '@aws-cdk/aws-apigateway';
import * as dynamodb from '@aws-cdk/aws-dynamodb';
import { ApiGatewayToLambda, ApiGatewayToLambdaProps } from '@aws-solutions-constructs/aws-apigateway-lambda';
import { LambdaToDynamoDB, LambdaToDynamoDBProps } from '@aws-solutions-constructs/aws-lambda-dynamodb';

export class HelloConstructsStack extends cdk.Stack {
  constructor(scope: cdk.Construct, id: string, props?: cdk.StackProps) {
    super(scope, id, props);

    // The code that defines your stack goes here

    // hello function responding to http requests 
    const helloFunc = new lambda.Function(this, 'HelloHandler', {
      runtime: lambda.Runtime.NODEJS_12_X,
      code: lambda.Code.fromAsset('lambda'),
      handler: 'hello.handler'
    });

    // hit counter, aws-lambda-dynamodb pattern
    const lambda_ddb_props: LambdaToDynamoDBProps = {
      lambdaFunctionProps: {
          code: lambda.Code.asset(`lambda`),
          runtime: lambda.Runtime.NODEJS_12_X,
          handler: 'hitcounter.handler',
          environment: {
              DOWNSTREAM_FUNCTION_NAME: helloFunc.functionName
          }
      },
      dynamoTableProps: {
          tableName: 'Hits',
          partitionKey: { name: 'path', type: dynamodb.AttributeType.STRING }
      }
    };

    const hitcounter = new LambdaToDynamoDB(this, 'LambdaToDynamoDB', lambda_ddb_props);

    // grant the hitcounter lambda role invoke permissions to the hello function
    helloFunc.grantInvoke(hitcounter.lambdaFunction);

    const api_lambda_props: ApiGatewayToLambdaProps = {
      lambdaFunctionProps: {
        code: lambda.Code.fromAsset('lambda'),
        runtime: lambda.Runtime.NODEJS_12_X,
        handler: 'hello.handler'
      },
      apiGatewayProps: {
        defaultMethodOptions: {
          authorizationType: api.AuthorizationType.NONE
        }
      }
    };

    new ApiGatewayToLambda(this, 'ApiGatewayToLambda', api_lambda_props);
  }
}
          

Python

Editar o arquivohello_constructs/hello_constructs_stack.pycom o seguinte:

from aws_cdk import (
    aws_lambda as _lambda,
    aws_apigateway as apigw,
    aws_dynamodb as ddb,
    core,
)

from aws_solutions_constructs import (
    aws_apigateway_lambda as apigw_lambda,
    aws_lambda_dynamodb as lambda_ddb
)

class HelloConstructsStack(core.Stack):

    def __init__(self, scope: core.Construct, id: str, **kwargs) -> None:
        super().__init__(scope, id, **kwargs)

        # The code that defines your stack goes here

        self.hello_func = _lambda.Function(
          self, 'HelloHandler',
          runtime=_lambda.Runtime.PYTHON_3_7,
          handler='hello.handler',
          code=_lambda.Code.asset('lambda'),
        )

        #  hit counter, aws-lambda-dynamodb pattern
        self.hit_counter = lambda_ddb.LambdaToDynamoDB(
            self, 'LambdaToDynamoDB',
            lambda_function_props=_lambda.FunctionProps(
                runtime=_lambda.Runtime.PYTHON_3_7,
                code=_lambda.Code.asset('lambda'),
                handler='hitcounter.handler',
                environment={
                    'DOWNSTREAM_FUNCTION_NAME': self.hello_func.function_name
                }
            ),
            dynamo_table_props=ddb.TableProps(
                table_name='Hits',
                partition_key={
                    'name': 'path',
                    'type': ddb.AttributeType.STRING
                }
            )
        )

        # grant the hitcounter lambda role invoke permissions to the hello function
        self.hello_func.grant_invoke(self.hit_counter.lambda_function)

        apigw_lambda.ApiGatewayToLambda(
            self, 'ApiGatewayToLambda',
            lambda_function_props=_lambda.FunctionProps(
                runtime=_lambda.Runtime.PYTHON_3_7,
                code=_lambda.Code.asset('lambda'),
                handler='hello.handler',
            ),
            api_gateway_props=apigw.RestApiProps(
                default_method_options=apigw.MethodOptions(
                    authorization_type=apigw.AuthorizationType.NONE
                )
            )
        )
          

Finalmente, precisamos atualizar nosso originalaws-apigateway-lambdapara utilizar nossa nova função Hit Counter que foi provisionada com oaws-lambda-dynamodbPadrão acima.

TypeScript

Editar o arquivolib/hello-constructs.tscom o seguinte:

  import * as cdk from '@aws-cdk/core';
import * as lambda from '@aws-cdk/aws-lambda';
import * as api from '@aws-cdk/aws-apigateway';
import * as dynamodb from '@aws-cdk/aws-dynamodb';
import { ApiGatewayToLambda, ApiGatewayToLambdaProps } from '@aws-solutions-constructs/aws-apigateway-lambda';
import { LambdaToDynamoDB, LambdaToDynamoDBProps } from '@aws-solutions-constructs/aws-lambda-dynamodb';

export class HelloConstructsStack extends cdk.Stack {
  constructor(scope: cdk.Construct, id: string, props?: cdk.StackProps) {
    super(scope, id, props);

    // The code that defines your stack goes here

    // hello function responding to http requests 
    const helloFunc = new lambda.Function(this, 'HelloHandler', {
      runtime: lambda.Runtime.NODEJS_12_X,
      code: lambda.Code.fromAsset('lambda'),
      handler: 'hello.handler'
    });

    // hit counter, aws-lambda-dynamodb pattern
    const lambda_ddb_props: LambdaToDynamoDBProps = {
      lambdaFunctionProps: {
          code: lambda.Code.asset(`lambda`),
          runtime: lambda.Runtime.NODEJS_12_X,
          handler: 'hitcounter.handler',
          environment: {
              DOWNSTREAM_FUNCTION_NAME: helloFunc.functionName
          }
      },
      dynamoTableProps: {
          tableName: 'Hits',
          partitionKey: { name: 'path', type: dynamodb.AttributeType.STRING }
      }
    };

    const hitcounter = new LambdaToDynamoDB(this, 'LambdaToDynamoDB', lambda_ddb_props);

    // grant the hitcounter lambda role invoke permissions to the hello function
    helloFunc.grantInvoke(hitcounter.lambdaFunction);

    const api_lambda_props: ApiGatewayToLambdaProps = {
      existingLambdaObj: hitcounter.lambdaFunction,
      apiGatewayProps: {
        defaultMethodOptions: {
          authorizationType: api.AuthorizationType.NONE
        }
      }
    };

    new ApiGatewayToLambda(this, 'ApiGatewayToLambda', api_lambda_props);
  }
}
          

Python

Editar o arquivohello_constructs/hello_constructs_stack.pycom o seguinte:

from aws_cdk import (
    aws_lambda as _lambda,
    aws_apigateway as apigw,
    aws_dynamodb as ddb,
    core,
)

from aws_solutions_constructs import (
    aws_apigateway_lambda as apigw_lambda,
    aws_lambda_dynamodb as lambda_ddb
)

class HelloConstructsStack(core.Stack):

    def __init__(self, scope: core.Construct, id: str, **kwargs) -> None:
        super().__init__(scope, id, **kwargs)

        # The code that defines your stack goes here

        self.hello_func = _lambda.Function(
          self, 'HelloHandler',
          runtime=_lambda.Runtime.PYTHON_3_7,
          handler='hello.handler',
          code=_lambda.Code.asset('lambda'),
        )

        #  hit counter, aws-lambda-dynamodb pattern
        self.hit_counter = lambda_ddb.LambdaToDynamoDB(
            self, 'LambdaToDynamoDB',
            lambda_function_props=_lambda.FunctionProps(
                runtime=_lambda.Runtime.PYTHON_3_7,
                code=_lambda.Code.asset('lambda'),
                handler='hitcounter.handler',
                environment={
                    'DOWNSTREAM_FUNCTION_NAME': self.hello_func.function_name
                }
            ),
            dynamo_table_props=ddb.TableProps(
                table_name='Hits',
                partition_key={
                    'name': 'path',
                    'type': ddb.AttributeType.STRING
                }
            )
        )

        # grant the hitcounter lambda role invoke permissions to the hello function
        self.hello_func.grant_invoke(self.hit_counter.lambda_function)

        apigw_lambda.ApiGatewayToLambda(
            self, 'ApiGatewayToLambda',
            existing_lambda_obj=self.hit_counter.lambda_function,
            api_gateway_props=apigw.RestApiProps(
                default_method_options=apigw.MethodOptions(
                    authorization_type=apigw.AuthorizationType.NONE
                )
            )
        )
          

Review as alterações

Vamos construir nosso projeto e revisar as alterações em nossos recursos que acontecerão quando implantarmos isso:

npm run build
cdk diff

Nossa saída deve ser semelhante a esta:

Stack HelloConstructsStack
IAM Statement Changes
┌───┬───────────────────────────────────┬────────┬───────────────────────────────────┬────────────────────────────────────┬───────────┐
│   │ Resource                          │ Effect │ Action                            │ Principal                          │ Condition │
├───┼───────────────────────────────────┼────────┼───────────────────────────────────┼────────────────────────────────────┼───────────┤
│ + │ ${HelloHandler.Arn}               │ Allow  │ lambda:InvokeFunction             │ AWS:${LambdaFunctionServiceRole}   │           │
├───┼───────────────────────────────────┼────────┼───────────────────────────────────┼────────────────────────────────────┼───────────┤
│ + │ ${HelloHandler/ServiceRole.Arn}   │ Allow  │ sts:AssumeRole                    │ Service:lambda.amazonaws.com       │           │
├───┼───────────────────────────────────┼────────┼───────────────────────────────────┼────────────────────────────────────┼───────────┤
│ + │ ${LambdaToDynamoDB/DynamoTable.Ar │ Allow  │ dynamodb:BatchGetItem             │ AWS:${LambdaFunctionServiceRole}   │           │
│   │ n}                                │        │ dynamodb:BatchWriteItem           │                                    │           │
│   │                                   │        │ dynamodb:DeleteItem               │                                    │           │
│   │                                   │        │ dynamodb:GetItem                  │                                    │           │
│   │                                   │        │ dynamodb:GetRecords               │                                    │           │
│   │                                   │        │ dynamodb:GetShardIterator         │                                    │           │
│   │                                   │        │ dynamodb:PutItem                  │                                    │           │
│   │                                   │        │ dynamodb:Query                    │                                    │           │
│   │                                   │        │ dynamodb:Scan                     │                                    │           │
│   │                                   │        │ dynamodb:UpdateItem               │                                    │           │
└───┴───────────────────────────────────┴────────┴───────────────────────────────────┴────────────────────────────────────┴───────────┘
IAM Policy Changes
┌───┬─────────────────────────────┬────────────────────────────────────────────────────────────────────────────────┐
│   │ Resource                    │ Managed Policy ARN                                                             │
├───┼─────────────────────────────┼────────────────────────────────────────────────────────────────────────────────┤
│ + │ ${HelloHandler/ServiceRole} │ arn:${AWS::Partition}:iam::aws:policy/service-role/AWSLambdaBasicExecutionRole │
└───┴─────────────────────────────┴────────────────────────────────────────────────────────────────────────────────┘
(NOTE: There may be security-related changes not in this list. See https://github.com/aws/aws-cdk/issues/1299)

Resources
[+] AWS::IAM::Role HelloHandler/ServiceRole HelloHandlerServiceRole11EF7C63 
[+] AWS::Lambda::Function HelloHandler HelloHandler2E4FBA4D 
[+] AWS::DynamoDB::Table LambdaToDynamoDB/DynamoTable LambdaToDynamoDBDynamoTable53C1442D 
[+] AWS::IAM::Policy LambdaFunctionServiceRole/DefaultPolicy LambdaFunctionServiceRoleDefaultPolicy126C8897 
[~] AWS::Lambda::Function LambdaFunction LambdaFunctionBF21E41F 
 ├─ [+] Environment
 │   └─ {"Variables":{"DOWNSTREAM_FUNCTION_NAME":{"Ref":"HelloHandler2E4FBA4D"},"DDB_TABLE_NAME":{"Ref":"LambdaToDynamoDBDynamoTable53C1442D"}}}
 ├─ [~] Handler
 │   ├─ [-] hello.handler
 │   └─ [+] hitcounter.handler
 └─ [~] DependsOn
     └─ @@ -1,3 +1,4 @@
        [ ] [
        [+]   "LambdaFunctionServiceRoleDefaultPolicy126C8897",
        [ ]   "LambdaFunctionServiceRole0C4CDE0B"
        [ ] ]

Implantação cdk

Pronto para implantar?

cdk deploy

Saídas da pilha

Quando a implantação estiver concluída, você notará esta linha:

Outputs:
HelloConstructsStack.RestApiEndpoint0551178A = https://xxxxxxxxxx.execute-api.us-east-1.amazonaws.com/prod/

Testar seu aplicativo

Vamos tentar acertar este ponto final com curl. Copie o URL e execute (seu prefixo e região provavelmente serão diferentes).

curl https://xxxxxxxxxx.execute-api.us-east-1.amazonaws.com/prod/

O resultado deve ser semelhante ao seguinte:

Hello, AWS Solutions Constructs! You've hit /

Agora, vamos revisar oHitsTabela do Amazon DynamoDB.

1. Acesse o console do DynamoDB.

2. Verifique se você está na Região onde criou a tabela.

3. SelectTabelasno painel de navegação e selecione a caixa de seleçãoHitsTabela INTO.

4. Abra a tabela e selecione “Itens”.

5. Você deve ver quantos hits você tem para cada caminho.

   

6. Tente acertar um novo caminho e atualize a exibição Itens. Você verá um novo item com umhitscontagem de um.

Se esta é a saída que você recebeu, seu aplicativo funciona!