项目地址

https://github.com/JessicaWin/aws

lambda分支为自动创建API Gateway REST API资源的部署方式
apigateway分支为自定义API Gateway REST API资源的部署方式

创建Lambda Handler

创建父模块

使用idea创建一个maven工程: File->New->Project

在左侧菜单栏中选择Maven,点击Next:

输入groupId和artifactId,点击Next:

最终点击finish创建完成.

修改父模块的pom文件,引入aws lambda, log, json相关的jar包管理:

    <properties><maven.compiler.target>1.8</maven.compiler.target><maven.compiler.source>1.8</maven.compiler.source></properties><dependencyManagement><dependencies><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>3.1.0</version></dependency><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId><version>1.18.12</version></dependency><dependency><groupId>org.slf4j</groupId><artifactId>slf4j-api</artifactId><version>1.7.26</version></dependency><dependency><groupId>org.slf4j</groupId><artifactId>slf4j-log4j12</artifactId><version>1.7.26</version></dependency><dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-core</artifactId><version>2.11.0</version></dependency><dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-databind</artifactId><version>2.11.0</version></dependency></dependencies></dependencyManagement>

创建子模块

首先选中aws project，然后Intellij -> File -> New Module，在弹出的对话框中选择Maven，使用默认配置，然后Next进入下一步配置。

配置项目的group和artifact等信息(可以根据自己需要进行配置)，点击Next进入下一步配置。

Grouop： com.jessica
Artifact：aws-lambda

设置module name为aws-lambda,点击finish完成创建.

修改子模块的pom文件,引入aws lambda, log, json相关的jar包:

<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd"><parent><artifactId>aws</artifactId><groupId>org.example</groupId><version>1.0-SNAPSHOT</version></parent><modelVersion>4.0.0</modelVersion><artifactId>aws-lambda</artifactId><properties><maven.compiler.target>1.8</maven.compiler.target><maven.compiler.source>1.8</maven.compiler.source></properties><dependencies><dependency><groupId>com.amazonaws</groupId><artifactId>aws-lambda-java-core</artifactId></dependency><dependency><groupId>com.amazonaws</groupId><artifactId>aws-lambda-java-events</artifactId></dependency><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId></dependency><dependency><groupId>org.slf4j</groupId><artifactId>slf4j-api</artifactId></dependency><dependency><groupId>org.slf4j</groupId><artifactId>slf4j-log4j12</artifactId></dependency><dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-core</artifactId></dependency><dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-databind</artifactId></dependency></dependencies><build><plugins><plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-shade-plugin</artifactId><configuration><createDependencyReducedPom>false</createDependencyReducedPom></configuration><executions><execution><phase>package</phase><goals><goal>shade</goal></goals><configuration><!-- remove version from package name --><finalName>${project.artifactId}</finalName><createDependencyReducedPom>false</createDependencyReducedPom></configuration></execution></executions></plugin></plugins></build>
</project>

在子模块的src/main/resources目录下添加日志配置文件log4j.properties

log4j.rootLogger=DEBUG,system.out
log4j.appender.system.out=org.apache.log4j.ConsoleAppender
log4j.appender.system.out.layout=org.apache.log4j.PatternLayout
log4j.appender.system.out.layout.ConversionPattern=[%t] %-5p %c %x - %m%n

在子模块中创建lambda函数的request和response

GreetingRequestVo.java

package com.jessica.aws.lambda;import lombok.AllArgsConstructor;
import lombok.Builder;
import lombok.Data;
import lombok.NoArgsConstructor;@Data
@Builder
@NoArgsConstructor
@AllArgsConstructor
public class GreetingRequestVo {private String name;private String time;private String city;private String day;
}

GreetingResponseVo.java

package com.jessica.aws.lambda;import lombok.AllArgsConstructor;
import lombok.Builder;
import lombok.Data;
import lombok.NoArgsConstructor;@Data
@Builder
@NoArgsConstructor
@AllArgsConstructor
public class GreetingResponseVo {private String greeting;
}

在子模块中创建一个Lambda Handler

LambdaProxyHandler.java

package com.jessica.aws.lambda;import com.amazonaws.services.lambda.runtime.Context;
import com.amazonaws.services.lambda.runtime.RequestHandler;
import com.amazonaws.services.lambda.runtime.events.APIGatewayProxyRequestEvent;
import com.amazonaws.services.lambda.runtime.events.APIGatewayProxyResponseEvent;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;public class LambdaProxyHandler implements RequestHandler<APIGatewayProxyRequestEvent, APIGatewayProxyResponseEvent> {private static final Logger LOGGER = LoggerFactory.getLogger(LambdaProxyHandler.class);private static final ObjectMapper mapper = new ObjectMapper();@Overridepublic APIGatewayProxyResponseEvent handleRequest(APIGatewayProxyRequestEvent event, Context context) {GreetingRequestVo greetingRequestVo = null;try {LOGGER.info("api gateway event is: " + event);String requestBody = event.getBody();LOGGER.info("api requestBody: " + event);greetingRequestVo = mapper.readValue(requestBody, GreetingRequestVo.class);String greeting = String.format("Good %s, %s of %s.[ Happy %s!]",greetingRequestVo.getTime(), greetingRequestVo.getName(), greetingRequestVo.getCity(), greetingRequestVo.getDay());LOGGER.info("name is " + greetingRequestVo.getName());GreetingResponseVo response = GreetingResponseVo.builder().greeting(greeting).build();String responseBody = mapper.writeValueAsString(response);APIGatewayProxyResponseEvent responseEvent = new APIGatewayProxyResponseEvent();responseEvent.setBody(responseBody);responseEvent.setStatusCode(200);return responseEvent;} catch (JsonProcessingException e) {APIGatewayProxyResponseEvent responseEvent = new APIGatewayProxyResponseEvent();responseEvent.setStatusCode(500);return responseEvent;}}
}

创建config.yml文件

在aws-lambda子模块中创建config.yml文件,该文件主要用于配置当前service的通用参数设置,同时用于作为lambda函数的环境变量

# Variant of each developer
variant: jessicastage: develop# The region you will deploy your lambda to
region: ap-southeast-1# The bucket your upload your lambda resource(Including jar) to
deploymentBucket: ${self:provider.stage}-social-network-deploy# AWS Account ID
ACCOUNT_ID:Ref: 'AWS::AccountId'versionFunctions: false

创建serverless.yml部署文件

serverless.yml文件用于创建lambda函数, apigateway的相关资源(AWS::ApiGateway::RestApi, AWS::ApiGateway::Resource, AWS::ApiGateway::Method),lambda函数的调用条件,权限等.

自动创建API Gateway REST API资源

在serverless.yml中配置lambda函数,在函数部署时会自动为该函数创建LogGroup,如果指定了http类型的event,则在部署时会自动为该函数创建event对应的apigateway的相关资源(AWS::ApiGateway::RestApi, AWS::ApiGateway::Resource, AWS::ApiGateway::Method),以及apigateway event调用lambda函数的权限.

部署文件

service: aws-lambda
frameworkVersion: ">=1.2.0 <2.0.0"
plugins:- serverless-pseudo-parameterscustom:configFile: ${file(config.yml)}provider:name: awsstage: ${self:custom.configFile.stage}variant: ${self:custom.configFile.variant}runtime: java8region: ${self:custom.configFile.region}timeout: 30 # The default is 6 seconds. Note: API Gateway current maximum is 30 secondsmemorySize: 1024 # Overwrite the default memory size. Default is 1024. Increase by 64.deploymentBucket: ${self:custom.configFile.deploymentBucket}environment: ${file(config.yml)}stackName: ${self:provider.stage}-${self:provider.variant}-${self:service}versionFunctions: ${self:custom.configFile.versionFunctions}package:artifact: target/aws-lambda.jarfunctions:LambdaProxyHandler:# name must have length less than or equal to 64name: ${self:provider.stage}-${self:provider.variant}-LambdaProxyHandlerhandler: com.jessica.aws.lambda.LambdaProxyHandlerrole: arn:aws:iam::#{AWS::AccountId}:role/AdminRoleevents:- http:path: /hellomethod: POST

部署

$ sls deploy -v
Serverless: Packaging service...
Serverless: Uploading CloudFormation file to S3...
Serverless: Uploading artifacts...
Serverless: Uploading service .zip file to S3 (4.7 MB)...
Serverless: Validating template...
Serverless: Creating Stack...
Serverless: Checking Stack create progress...
CloudFormation - CREATE_IN_PROGRESS - AWS::CloudFormation::Stack - develop-jessica-aws-lambda
CloudFormation - CREATE_IN_PROGRESS - AWS::Logs::LogGroup - LambdaProxyHandlerLogGroup
CloudFormation - CREATE_IN_PROGRESS - AWS::ApiGateway::RestApi - ApiGatewayRestApi
CloudFormation - CREATE_IN_PROGRESS - AWS::Logs::LogGroup - LambdaProxyHandlerLogGroup
CloudFormation - CREATE_IN_PROGRESS - AWS::ApiGateway::RestApi - ApiGatewayRestApi
CloudFormation - CREATE_COMPLETE - AWS::ApiGateway::RestApi - ApiGatewayRestApi
CloudFormation - CREATE_COMPLETE - AWS::Logs::LogGroup - LambdaProxyHandlerLogGroup
CloudFormation - CREATE_IN_PROGRESS - AWS::ApiGateway::Resource - ApiGatewayResourceHello
CloudFormation - CREATE_IN_PROGRESS - AWS::Lambda::Function - LambdaProxyHandlerLambdaFunction
CloudFormation - CREATE_IN_PROGRESS - AWS::ApiGateway::Resource - ApiGatewayResourceHello
CloudFormation - CREATE_COMPLETE - AWS::ApiGateway::Resource - ApiGatewayResourceHello
CloudFormation - CREATE_IN_PROGRESS - AWS::Lambda::Function - LambdaProxyHandlerLambdaFunction
CloudFormation - CREATE_COMPLETE - AWS::Lambda::Function - LambdaProxyHandlerLambdaFunction
CloudFormation - CREATE_IN_PROGRESS - AWS::Lambda::Permission - LambdaProxyHandlerLambdaPermissionApiGateway
CloudFormation - CREATE_IN_PROGRESS - AWS::ApiGateway::Method - ApiGatewayMethodHelloPost
CloudFormation - CREATE_IN_PROGRESS - AWS::Lambda::Permission - LambdaProxyHandlerLambdaPermissionApiGateway
CloudFormation - CREATE_IN_PROGRESS - AWS::ApiGateway::Method - ApiGatewayMethodHelloPost
CloudFormation - CREATE_COMPLETE - AWS::ApiGateway::Method - ApiGatewayMethodHelloPost
CloudFormation - CREATE_IN_PROGRESS - AWS::ApiGateway::Deployment - ApiGatewayDeployment1592312567124
CloudFormation - CREATE_IN_PROGRESS - AWS::ApiGateway::Deployment - ApiGatewayDeployment1592312567124
CloudFormation - CREATE_COMPLETE - AWS::ApiGateway::Deployment - ApiGatewayDeployment1592312567124
CloudFormation - CREATE_COMPLETE - AWS::Lambda::Permission - LambdaProxyHandlerLambdaPermissionApiGateway
CloudFormation - CREATE_COMPLETE - AWS::CloudFormation::Stack - develop-jessica-aws-lambda
Serverless: Stack create finished...
Service Information
service: aws-lambda
stage: develop
region: ap-southeast-1
stack: develop-jessica-aws-lambda
api keys:None
endpoints:POST - https://********.execute-api.ap-southeast-1.amazonaws.com/develop/hello
functions:LambdaProxyHandler: aws-lambda-develop-LambdaProxyHandler
layers:NoneStack Outputs
ServiceEndpoint: https://********.execute-api.ap-southeast-1.amazonaws.com/develop
ServerlessDeploymentBucketName: develop-social-network-deploy

通过log可以看出，lambda函数部署时一共创建了7个资源：

AWS::ApiGateway::RestApi
AWS::Logs::LogGroup
AWS::ApiGateway::Resource
AWS::Lambda::Function
AWS::ApiGateway::Method
AWS::Lambda::Permission
AWS::ApiGateway::Deployment

测试

打开apigateway的页面：https://ap-southeast-1.console.aws.amazon.com/apigateway/main/apis?region=ap-southeast-1

在api列表中可以找到刚部署的名为 develop-aws-lambda的api:

打开api页面，可以看到api相关信息，点击/hello下面的POST方法，可以看到hello api的完整信息：

击点TEST可以进行测试,测试时输入如下的request body:

{
"name":"jesscia",
"time":"21:00",
"city":"shanghai",
"day":"2020/06/10"
}

自定义API Gateway REST API资源

在aws-lambda的serverless.yml中只配置lambda函数,不指定event.

在aws-lambda的根目录下创建一个api目录,并在其中创建一个serverless.yml用于对apigateway的相关资源(AWS::ApiGateway::RestApi, AWS::ApiGateway::Resource, AWS::ApiGateway::Method)以及调用lambda函数的权限进行配置.

lambda配置文件aws-lambda/serverless.yml

service: aws-apigateway-lambda
frameworkVersion: ">=1.2.0 <2.0.0"
plugins:- serverless-pseudo-parameterscustom:configFile: ${file(config.yml)}provider:name: awsstage: ${self:custom.configFile.stage}variant: ${self:custom.configFile.variant}runtime: java8region: ${self:custom.configFile.region}timeout: 30 # The default is 6 seconds. Note: API Gateway current maximum is 30 secondsmemorySize: 1024 # Overwrite the default memory size. Default is 1024. Increase by 64.deploymentBucket: ${self:custom.configFile.deploymentBucket}environment: ${file(config.yml)}stackName: ${self:provider.stage}-${self:provider.variant}-${self:service}versionFunctions: ${self:custom.configFile.versionFunctions}package:artifact: target/aws-lambda.jarfunctions:LambdaProxyHelloHandler:# name must have length less than or equal to 64name: ${self:provider.stage}-${self:provider.variant}-LambdaProxyHelloHandlerhandler: com.jessica.aws.lambda.LambdaProxyHandlerrole: arn:aws:iam::#{AWS::AccountId}:role/AdminRoleresources:Outputs:LambdaProxyHelloHandlerArn:Description: The ARN for the hello functionValue:# the first param must be:  string.contact(functionId, LambdaFunction)Fn::GetAtt:- LambdaProxyHelloHandlerLambdaFunction- ArnExport:Name: ${self:provider.stage}-${self:provider.variant}-LambdaProxyHelloHandlerArn

apigateway配置文件aws-lambda/api/serverless.yml

service: aws-apigateway-api
frameworkVersion: ">=1.2.0 <2.0.0"
plugins:- serverless-pseudo-parameterscustom:configFile: ${file(../config.yml)}provider:name: awsstage: ${self:custom.configFile.stage}variant: ${self:custom.configFile.variant}region: ${self:custom.configFile.region}deploymentBucket: ${self:custom.configFile.deploymentBucket}stackName: ${self:provider.stage}-${self:provider.variant}-${self:service}helloFunctionArn:Fn::ImportValue: ${self:provider.stage}-${self:provider.variant}-LambdaProxyHelloHandlerArnresources:Resources:# api gateway rootApiGatewayRestApi:Type: AWS::ApiGateway::RestApiProperties:Name: ${self:provider.stage}_${self:provider.variant}_ApiGatewayRootRestApiEndpointConfiguration:Types:- REGIONAL# /helloApiGatewayResourceHello:Type: AWS::ApiGateway::ResourceProperties:RestApiId:Ref: ApiGatewayRestApiParentId:Fn::GetAtt:- ApiGatewayRestApi- RootResourceIdPathPart: helloRootMethod:Type: AWS::ApiGateway::MethodProperties:ResourceId:Fn::GetAtt:- ApiGatewayRestApi- RootResourceIdRestApiId:Ref: ApiGatewayRestApiHttpMethod: GETAuthorizationType: NONEMethodResponses:- StatusCode: 302ResponseParameters:method.response.header.Location: trueIntegration:Type: MOCKRequestTemplates:'application/json': '{"statusCode":200}'IntegrationResponses:- StatusCode: 302ApiGatewayMethodHelloPost:Type: AWS::ApiGateway::MethodProperties:HttpMethod: POSTRequestParameters: {}ResourceId:Ref: ApiGatewayResourceHelloRestApiId:Ref: ApiGatewayRestApiApiKeyRequired: falseAuthorizationType: NONEIntegration:IntegrationHttpMethod: POSTType: AWS_PROXYUri:# Fn::Join object requires two parameters, (1) a string delimiter and (2) a list of strings to be joinedFn::Join:- ''- - 'arn:'- Ref: 'AWS::Partition'- ':apigateway:'- Ref: 'AWS::Region'- ':lambda:path/2015-03-31/functions/'- ${self:provider.helloFunctionArn}- /invocationsMethodResponses: []LambdaProxyHandlerLambdaPermissionApiGateway:Type: AWS::Lambda::PermissionProperties:FunctionName: ${self:provider.helloFunctionArn}Action: lambda:InvokeFunctionPrincipal: apigateway.amazonaws.comSourceArn:Fn::Join:- ''- - 'arn:'- Ref: 'AWS::Partition'- ':execute-api:'- Ref: 'AWS::Region'- ':'- Ref: 'AWS::AccountId'- ':'- Ref: ApiGatewayRestApi- /*/*Outputs:ApiGatewayRestApiId:Value:Ref: ApiGatewayRestApiExport:Name: ${self:provider.stage}-${self:provider.variant}-ApiGatewayRootRestApiIdApiGatewayRootResourceId:Value:Fn::GetAtt:- ApiGatewayRestApi- RootResourceIdExport:Name: ${self:provider.stage}-${self:provider.variant}-ApiGatewayRootResourceIdApiGatewayResourceIdHello:Value:Ref: ApiGatewayResourceHelloExport:Name: ${self:provider.stage}-${self:provider.variant}-ApiGatewayResourceId-helloServiceEndpoint:Description: 'URL of the service endpoint'Value:Fn::Join:- ''- - 'https://'- Ref: ApiGatewayRestApi- '.execute-api.'- Ref: 'AWS::Region'- '.'- Ref: 'AWS::URLSuffix'- '/'- ${self:provider.stage}

部署lambda函数

$ $ sls deploy -v
Serverless: Packaging service...
Serverless: Uploading CloudFormation file to S3...
Serverless: Uploading artifacts...
Serverless: Uploading service .zip file to S3 (4.7 MB)...
Serverless: Validating template...
Serverless: Creating Stack...
Serverless: Checking Stack create progress...
CloudFormation - CREATE_IN_PROGRESS - AWS::CloudFormation::Stack - develop-jessica-aws-apigateway-lambda
CloudFormation - CREATE_IN_PROGRESS - AWS::Logs::LogGroup - LambdaProxyHelloHandlerLogGroup
CloudFormation - CREATE_IN_PROGRESS - AWS::Logs::LogGroup - LambdaProxyHelloHandlerLogGroup
CloudFormation - CREATE_COMPLETE - AWS::Logs::LogGroup - LambdaProxyHelloHandlerLogGroup
CloudFormation - CREATE_IN_PROGRESS - AWS::Lambda::Function - LambdaProxyHelloHandlerLambdaFunction
CloudFormation - CREATE_IN_PROGRESS - AWS::Lambda::Function - LambdaProxyHelloHandlerLambdaFunction
CloudFormation - CREATE_COMPLETE - AWS::Lambda::Function - LambdaProxyHelloHandlerLambdaFunction
CloudFormation - CREATE_COMPLETE - AWS::CloudFormation::Stack - develop-jessica-aws-apigateway-lambda
Serverless: Stack create finished...
Service Information
service: aws-apigateway-lambda
stage: develop
region: ap-southeast-1
stack: develop-jessica-aws-apigateway-lambda
api keys:None
endpoints:None
functions:LambdaProxyHelloHandler: aws-apigateway-lambda-develop-LambdaProxyHelloHandler
layers:NoneStack Outputs
LambdaProxyHelloHandlerArn: arn:aws:lambda:ap-southeast-1:*********:function:develop-jessica-LambdaProxyHelloHandler
ServerlessDeploymentBucketName: develop-social-network-deploy

通过log可以看出，lambda函数部署时一共创建了2个资源：

AWS::Logs::LogGroup
AWS::Lambda::Function

部署apigateway

$  sls deploy -v
Serverless: Packaging service...
Serverless: Uploading CloudFormation file to S3...
Serverless: Uploading artifacts...
Serverless: Validating template...
Serverless: Creating Stack...
Serverless: Checking Stack create progress...
CloudFormation - CREATE_IN_PROGRESS - AWS::CloudFormation::Stack - develop-jessica-aws-apigateway-api
CloudFormation - CREATE_IN_PROGRESS - AWS::ApiGateway::RestApi - ApiGatewayRestApi
CloudFormation - CREATE_IN_PROGRESS - AWS::ApiGateway::RestApi - ApiGatewayRestApi
CloudFormation - CREATE_COMPLETE - AWS::ApiGateway::RestApi - ApiGatewayRestApi
CloudFormation - CREATE_IN_PROGRESS - AWS::ApiGateway::Resource - ApiGatewayResourceHello
CloudFormation - CREATE_IN_PROGRESS - AWS::ApiGateway::Method - RootMethod
CloudFormation - CREATE_IN_PROGRESS - AWS::Lambda::Permission - LambdaProxyHandlerLambdaPermissionApiGateway
CloudFormation - CREATE_IN_PROGRESS - AWS::ApiGateway::Resource - ApiGatewayResourceHello
CloudFormation - CREATE_IN_PROGRESS - AWS::ApiGateway::Method - RootMethod
CloudFormation - CREATE_IN_PROGRESS - AWS::Lambda::Permission - LambdaProxyHandlerLambdaPermissionApiGateway
CloudFormation - CREATE_COMPLETE - AWS::ApiGateway::Resource - ApiGatewayResourceHello
CloudFormation - CREATE_COMPLETE - AWS::ApiGateway::Method - RootMethod
CloudFormation - CREATE_IN_PROGRESS - AWS::ApiGateway::Method - ApiGatewayMethodHelloPost
CloudFormation - CREATE_IN_PROGRESS - AWS::ApiGateway::Method - ApiGatewayMethodHelloPost
CloudFormation - CREATE_COMPLETE - AWS::ApiGateway::Method - ApiGatewayMethodHelloPost
CloudFormation - CREATE_COMPLETE - AWS::Lambda::Permission - LambdaProxyHandlerLambdaPermissionApiGateway
CloudFormation - CREATE_COMPLETE - AWS::CloudFormation::Stack - develop-jessica-aws-apigateway-api
Serverless: Stack create finished...
Service Information
service: aws-apigateway-api
stage: develop
region: ap-southeast-1
stack: develop-jessica-aws-apigateway-api
api keys:None
endpoints:
functions:None
layers:NoneStack Outputs
ApiGatewayRestApiId: ******
ApiGatewayRootResourceId: ******
ApiGatewayResourceIdHello: ******
ServiceEndpoint: https://******.execute-api.ap-southeast-1.amazonaws.com/develop
ServerlessDeploymentBucketName: develop-social-network-deploy

通过log可以看出，lambda函数部署时一共创建了5个资源：

AWS::ApiGateway::RestApi
AWS::ApiGateway::Resource
AWS::ApiGateway::Method - RootMethod
AWS::ApiGateway::Method - ApiGatewayMethodHelloPost
AWS::Lambda::Permission

测试

打开apigateway的页面：https://ap-southeast-1.console.aws.amazon.com/apigateway/main/apis?region=ap-southeast-1

在api列表中可以找到刚部署的名为 develop_jessica_ApiGatewayRootRestApi的api:

打开api页面，可以看到api相关信息，点击/hello下面的POST方法，可以看到hello api的完整信息：

点击 TEST可以对api进行测试，输入图示的request body进行测试，可以得到正确的返回结果：

{
"name":"jesscia",
"time":"21:00",
"city":"shanghai",
"day":"2020/06/10"
}

参考

https://www.serverless.com/framework/docs/providers/aws/guide/functions/

https://www.serverless.com/framework/docs/providers/aws/events/apigateway/#lambda-integration

https://www.gorillastack.com/news/splitting-your-serverless-framework-api-on-aws/

https://docs.aws.amazon.com/zh_cn/AWSCloudFormation/latest/UserGuide/intrinsic-function-reference-join.html

https://docs.aws.amazon.com/zh_cn/AWSCloudFormation/latest/UserGuide/intrinsic-function-reference-getatt.html

https://docs.aws.amazon.com/zh_cn/AWSCloudFormation/latest/UserGuide/intrinsic-function-reference-ref.html

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