I want to use the AWS SKD v2 of DynamoDB which can accepts the table name dynamically and return all the records and I am creating the Rest API for the same. I have to use the access key and secret key to configure the client for DynamoDB. Please note that I am using the direct AWS resource and have not setup any local DynamoDB. When I call the API I am getting the software.amazon.awssdk.services.dynamodb.model.DynamoDbException: The security token included in the request is invalid.

I have also tried to setup using the aws configure with correct AWS access key and secret key along with region but when I to hit the API I am getting the same.

To verify the keys, I have created basic Python script which can retrieve the records from DynamoDB successfully. So keys are valid.

DynamoDBConfig

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import software.amazon.awssdk.auth.credentials.AwsBasicCredentials;
import software.amazon.awssdk.auth.credentials.StaticCredentialsProvider;
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.dynamodb.DynamoDbClient;

@Configuration
public class DynamoDBConfig {

  @Bean
  public DynamoDbClient dynamoDbClient() {
    return DynamoDbClient.builder()
        .region(Region.EU_WEST_2)
        .credentialsProvider(StaticCredentialsProvider.create(AwsBasicCredentials.create(
            "access key",
            "secret key"
        )))
        .build();
  }

}

DynamoDBService

import software.amazon.awssdk.services.dynamodb.DynamoDbClient;
import software.amazon.awssdk.services.dynamodb.model.AttributeValue;
import software.amazon.awssdk.services.dynamodb.model.GetItemRequest;
import software.amazon.awssdk.services.dynamodb.model.ScanRequest;
import software.amazon.awssdk.services.dynamodb.model.ScanResponse;
import org.springframework.stereotype.Service;

import java.util.Map;

@Service
public class DynamoDBService {

  private final DynamoDbClient dynamoDbClient;

  public DynamoDBService(DynamoDbClient dynamoDbClient) {
    this.dynamoDbClient = dynamoDbClient;
  }

  public ScanResponse getAllItems(String tableName) {
    ScanRequest scanRequest = ScanRequest.builder()
        .tableName(tableName)
        .build();
    return dynamoDbClient.scan(scanRequest);
  }

  public Map<String, AttributeValue> getItem(String tableName, String keyFieldName, String keyFieldValue) {
    GetItemRequest getItemRequest = GetItemRequest.builder()
        .tableName(tableName)
        .key(Map.of(keyFieldName, AttributeValue.builder().s(keyFieldValue).build()))
        .build();
    return dynamoDbClient.getItem(getItemRequest).item();
  }

}

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>3.2.7</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.abc</groupId>
    <artifactId>poc.dynamodb</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>poc.dynamodb</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>17</java.version>
    </properties>
    <dependencies>
        <!-- Spring Boot Starter Web -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <!-- AWS SDK for DynamoDB -->
        <dependency>
            <groupId>software.amazon.awssdk</groupId>
            <artifactId>dynamodb</artifactId>
            <version>2.20.26</version>
        </dependency>

        <dependency>
            <groupId>org.springdoc</groupId>
            <artifactId>springdoc-openapi-starter-webmvc-ui</artifactId>
            <version>2.6.0</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>