ObjectMapper 通过 API 网关破坏 AWS Lambda

Question

有一个 API 网关使用 lambda 代理调用 lambda 函数。

以下工作正常的正文已记录并发回：

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>

儿童建筑

<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

虽然愚蠢，但如果这对任何人有帮助，我会很高兴。

ObjectMapper 不是问题所在。我用 travis-ci 进行了几次部署，显然，如果 memory_size 并且未设置超时，则发生这种情况时使用默认的 128 mb 和 3 秒。这不同于 512 mb 和 15 秒的新 lambda 的默认值。

我在 travis 论坛上提出了更改此设置的请求。

ObjectMapper 通过 API 网关破坏 AWS Lambda

ObjectMapper breaking AWS Lambda via API Gateway

java

amazon-web-services

aws-sdk

aws-lambda