Question

有一个API网关使用lambda代理调用lambda函数。

下面的方法可以很好地记录正文并将正文发送回去：

package com.dapper.cloud.function;

import java.util.Map;

import com.amazonaws.services.lambda.runtime.Context;
import com.amazonaws.services.lambda.runtime.RequestHandler;
import com.amazonaws.services.lambda.runtime.events.APIGatewayProxyResponseEvent;

public class GrantJwt implements RequestHandler<Map<String, Object>, APIGatewayProxyResponseEvent>{ 
    @Override
    public APIGatewayProxyResponseEvent handleRequest(Map<String, Object> input, Context context){

        System.out.println(input.get("body").toString());

        return new APIGatewayProxyResponseEvent().withStatusCode(200).withBody(input.get("body").toString());
    }
}

当我更新它以像这样使用ObjectMapper时：

package com.dapper.cloud.function;

import java.util.Map;

import com.amazonaws.services.lambda.runtime.Context;
import com.amazonaws.services.lambda.runtime.RequestHandler;
import com.amazonaws.services.lambda.runtime.events.APIGatewayProxyResponseEvent;
import com.fasterxml.jackson.databind.ObjectMapper;

public class GrantJwt implements RequestHandler<Map<String, Object>, APIGatewayProxyResponseEvent>{ 
    @Override
    public APIGatewayProxyResponseEvent handleRequest(Map<String, Object> input, Context context){
        ObjectMapper m = new ObjectMapper();
        System.out.println(input.get("body").toString());

        return new APIGatewayProxyResponseEvent().withStatusCode(200).withBody(input.get("body").toString());
    }
}

日志不显示正文，响应为：

{
    "message": "Internal server error"
}

我可以在AWS Lambda中使用Jackson吗？

父POM

<dependencies>
    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>4.12</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>com.amazonaws</groupId>
        <artifactId>aws-lambda-java-core</artifactId>
        <version>1.2.0</version>
    </dependency>
    <dependency>
        <groupId>com.amazonaws</groupId>
        <artifactId>aws-lambda-java-events</artifactId>
        <version>2.2.6</version>
    </dependency>
    <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-databind</artifactId>
        <version>2.9.9</version>
    </dependency>
</dependencies>

儿童建物

<build>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-shade-plugin</artifactId>
            <version>3.0.0</version>
            <configuration>
                <createDependencyReducedPom>false</createDependencyReducedPom>
            </configuration>
            <executions>
                <execution>
                    <phase>package</phase>
                    <goals>
                        <goal>shade</goal>
                    </goals>
                </execution>
            </executions>
        </plugin>
    </plugins>
</build>

Answer 1

愚蠢，但是如果这可以帮助任何人，我会很高兴。

ObjectMapper不是问题。我使用travis-ci进行了几次部署，显然，如果未设置memory_size和timeout，则默认情况下会发生这种情况，默认使用128 mb且使用3秒。这与新的lambda的默认值（512 mb and 15秒）不同。

我在travis论坛上提出了更改此要求的请求。

ObjectMapper通过API网关打破AWS Lambda

1 个答案: