Stuck on an issue?

Lightrun Answers was designed to reduce the constant googling that comes with debugging 3rd party libraries. It collects links to all the places you might be looking at while hunting down a tough bug.

And, if you’re still stuck at the end, we’re happy to hop on a call to see how we can help out.

Exception when to create request via aws lambda invoke

See original GitHub issue

Framework version: XX
Implementations: Jersey / Spring / Spring Boot / Spark

Scenario

Using
aws lambda invoke
–invocation-type RequestResponse
–function-name SomeFunction
–region us-east-1
–payload file://file-path/input.txt
–profile adminuser
outputfile.txt

Expected behavior

Mapping the request which is NOT from API gateway proxy mode to Spring Request

Actual behavior

Exception

Steps to reproduce

Full log output

com.amazonaws.serverless.proxy.internal.LambdaContainerHandler
stack_trace : "com.fasterxml.jackson.databind.exc.MismatchedInputException: Cannot deserialize instance of `java.lang.String` out of START_OBJECT token^@ 
 at [Source: (lambdainternal.util.NativeMemoryAsInputStream); line: 1, column: 1412] (through reference chain: com.amazonaws.serverless.proxy.model.AwsProxyRequest[\"body\"])^@
\tat com.fasterxml.jackson.databind.exc.MismatchedInputException.from(MismatchedInputException.java:63)^@
\tat com.fasterxml.jackson.databind.DeserializationContext.reportInputMismatch(DeserializationContext.java:1342)^@
\tat com.fasterxml.jackson.databind.DeserializationContext.handleUnexpectedToken(DeserializationContext.java:1138)^@
\tat com.fasterxml.jackson.databind.DeserializationContext.handleUnexpectedToken(DeserializationContext.java:1092)^@
\tat com.fasterxml.jackson.databind.deser.std.StringDeserializer.deserialize(StringDeserializer.java:63)^@
\tat com.fasterxml.jackson.databind.deser.std.StringDeserializer.deserialize(StringDeserializer.java:10)^@
\tat com.fasterxml.jackson.databind.deser.impl.MethodProperty.deserializeAndSet(MethodProperty.java:127)^@
\tat com.fasterxml.jackson.databind.deser.BeanDeserializer.vanillaDeserialize(BeanDeserializer.java:288)^@
\tat com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:151)^@
\tat com.fasterxml.jackson.databind.ObjectReader._bindAndClose(ObjectReader.java:1611)^@
\tat com.fasterxml.jackson.databind.ObjectReader.readValue(ObjectReader.java:1188)^@
\tat com.amazonaws.serverless.proxy.internal.LambdaContainerHandler.proxyStream(LambdaContainerHandler.java:199)^@
\tat com.demo.StreamLambdaHandler.handleRequest(StreamLambdaHandler.java:46)^@
\tat sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)^@
\tat sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)^@
\tat sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)^@
\tat java.lang.reflect.Method.invoke(Method.java:498)^@
\tat lambdainternal.EventHandlerLoader$StreamMethodRequestHandler.handleRequest(EventHandlerLoader.java:350)^@
\tat lambdainternal.EventHandlerLoader$2.call(EventHandlerLoader.java:888)^@
\tat lambdainternal.AWSLambda.startRuntime(AWSLambda.java:283)^@
\tat lambdainternal.AWSLambda.<clinit>(AWSLambda.java:64)^@
\tat java.lang.Class.forName0(Native Method)^@
\tat java.lang.Class.forName(Class.java:348)^@
\tat lambdainternal.LambdaRTEntry.main(LambdaRTEntry.java:94)^@

Issue Analytics

State:
Created 5 years ago
Comments:14

Top GitHub Comments

1reaction

sapessicommented, Jul 7, 2018

No, it only supports specific types. I envision you doing something like this (using Jersey as an example):

public class MyLambdaHandler implements RequestHandler<CustomRequestType, CustomResponseType> {
    private static final ResourceConfig jerseyApplication = new ResourceConfig()
                                                             .packages("com.amazonaws.serverless.sample.jersey")
                                                             .register(JacksonFeature.class);
    private static final JerseyLambdaContainerHandler<AwsProxyRequest, AwsProxyResponse> handler
            = JerseyLambdaContainerHandler.getAwsProxyHandler(jerseyApplication);

    @Override
    public CustomResponseType handleRequest(CustomRequestType input, Context context)
            throws IOException {
        AwsProxyResponse resp = handler.proxy(this.translateRequest(input));

        // method implementation omitted for brevity
        CustomResponseType finalResp = this.translateResponse(resp);
        // just in case it wasn't closed by the mapper
        return finalResp;
    }

    private AwsProxyRequest translateRequest(CustomRequestType customReq) {
        AwsProxyRequest newReq = new AwsProxyRequest();
        newReq.setPath(customReq.getPath());
        ...
        return newReq;
    }
}

0reactions

sapessicommented, Jun 26, 2019

Resolving this since we have also created the wiki guide.

Top Results From Across the Web

Invoke - AWS Lambda - AWS Documentation

Invokes a Lambda function. You can invoke a function synchronously (and wait for the response), or asynchronously. To invoke a function asynchronously, set...

AWS Lambda function errors in Java

This page describes how to view Lambda function invocation errors for the Java runtime using the Lambda console and the AWS CLI.

Error handling and automatic retries in AWS Lambda

When you invoke a function, two types of error can occur. Invocation errors occur when the invocation request is rejected before your function...

AWS Lambda function errors in C# - AWS Lambda

This page describes how to view Lambda function invocation errors for the C# runtime using the Lambda console and the AWS CLI.

Troubleshoot invocation issues in Lambda

When you invoke a Lambda function, Lambda validates the request and checks for scaling capacity before sending the event to your function or, ......