AWS Lambda with Quarkus REST, Undertow, or Reactive Routes

mvn archetype:generate \
       -DarchetypeGroupId=io.quarkus \
       -DarchetypeArtifactId=quarkus-amazon-lambda-http-archetype \
       -DarchetypeVersion={quarkus-version}

mvn archetype:generate \
       -DarchetypeGroupId=io.quarkus \
       -DarchetypeArtifactId=quarkus-amazon-lambda-rest-archetype \
       -DarchetypeVersion={quarkus-version}

import static io.restassured.RestAssured.given;
import static org.hamcrest.CoreMatchers.equalTo;

import com.amazonaws.services.lambda.runtime.events.APIGatewayV2HTTPEvent;

import io.quarkus.test.junit.QuarkusTest;

@QuarkusTest
public class AmazonLambdaSimpleTestCase {
    @Test
    public void testJaxrsCognitoJWTSecurityContext() throws Exception {
        APIGatewayV2HTTPEvent request = request("/security/username");
        request.getRequestContext().setAuthorizer(new APIGatewayV2HTTPEvent.RequestContext.Authorizer());
        request.getRequestContext().getAuthorizer().setJwt(new APIGatewayV2HTTPEvent.RequestContext.Authorizer.JWT());
        request.getRequestContext().getAuthorizer().getJwt().setClaims(new HashMap<>());
        request.getRequestContext().getAuthorizer().getJwt().getClaims().put("cognito:username", "Bill");

        given()
                .contentType("application/json")
                .accept("application/json")
                .body(request)
                .when()
                .post("/_lambda_")
                .then()
                .statusCode(200)
                .body("body", equalTo("Bill"));
    }

quarkus.lambda.mock-event-server.dev-port=8082
quarkus.lambda.mock-event-server.test-port=8083

quarkus.lambda.mock-event-server.enabled=false

sam local start-api --template target/sam.jvm.yaml

sam deploy -t target/sam.jvm.yaml -g

Key                 LambdaHttpApi
Description         URL for application
Value               https://234asdf234as.execute-api.us-east-1.amazonaws.com/

sam local start-api --template target/sam.native.yaml

sam deploy -t target/sam.native.yaml -g

import jakarta.ws.rs.core.Context;
import com.amazonaws.services.lambda.runtime.events.APIGatewayV2HTTPEvent;


@Path("/myresource")
public class MyResource {
    @GET
    public String ctx(@Context com.amazonaws.services.lambda.runtime.Context ctx) { }

    @GET
    public String event(@Context APIGatewayV2HTTPEvent event) { }

    @GET
    public String requestContext(@Context APIGatewayV2HTTPEvent.RequestContext req) { }


}

import jakarta.ws.rs.core.Context;
import io.quarkus.amazon.lambda.http.model.AwsProxyRequestContext;
import io.quarkus.amazon.lambda.http.model.AwsProxyRequest;


@Path("/myresource")
public class MyResource {
    @GET
    public String ctx(@Context com.amazonaws.services.lambda.runtime.Context ctx) { }

    @GET
    public String reqContext(@Context AwsProxyRequestContext req) { }

    @GET
    public String req(@Context AwsProxyRequest req) { }

}

quarkus.lambda-http.enable-security=true

quarkus.lambda-http.map-cognito-to-roles=false

quarkus.lambda-http.cognito-role-claim=cognito:roles

quarkus.lambda-http.cognito-claim-matcher=[^\[\] \t]+

package io.quarkus.amazon.lambda.http;

/**
 * Helper interface that removes some boilerplate for creating
 * an IdentityProvider that processes APIGatewayV2HTTPEvent
 */
public interface LambdaIdentityProvider extends IdentityProvider<LambdaAuthenticationRequest> {
    @Override
    default public Class<LambdaAuthenticationRequest> getRequestType() {
        return LambdaAuthenticationRequest.class;
    }

    @Override
    default Uni<SecurityIdentity> authenticate(LambdaAuthenticationRequest request, AuthenticationRequestContext context) {
        APIGatewayV2HTTPEvent event = request.getEvent();
        SecurityIdentity identity = authenticate(event);
        if (identity == null) {
            return Uni.createFrom().optional(Optional.empty());
        }
        return Uni.createFrom().item(identity);
    }

    /**
     * You must override this method unless you directly override
     * IdentityProvider.authenticate
     *
     * @param event
     * @return
     */
    default SecurityIdentity authenticate(APIGatewayV2HTTPEvent event) {
        throw new IllegalStateException("You must override this method or IdentityProvider.authenticate");
    }
}

package io.quarkus.amazon.lambda.http;

import java.util.Optional;

import com.amazonaws.services.lambda.runtime.events.APIGatewayV2HTTPEvent;

import io.quarkus.amazon.lambda.http.model.AwsProxyRequest;
import io.quarkus.security.identity.AuthenticationRequestContext;
import io.quarkus.security.identity.IdentityProvider;
import io.quarkus.security.identity.SecurityIdentity;
import io.smallrye.mutiny.Uni;

/**
 * Helper interface that removes some boilerplate for creating
 * an IdentityProvider that processes APIGatewayV2HTTPEvent
 */
public interface LambdaIdentityProvider extends IdentityProvider<LambdaAuthenticationRequest> {
...

    /**
     * You must override this method unless you directly override
     * IdentityProvider.authenticate
     *
     * @param event
     * @return
     */
    default SecurityIdentity authenticate(AwsProxyRequest event) {
        throw new IllegalStateException("You must override this method or IdentityProvider.authenticate");
    }
}

package org.acme;

import java.security.Principal;

import jakarta.enterprise.context.ApplicationScoped;

import com.amazonaws.services.lambda.runtime.events.APIGatewayV2HTTPEvent;

import io.quarkus.amazon.lambda.http.LambdaIdentityProvider;
import io.quarkus.security.identity.SecurityIdentity;
import io.quarkus.security.runtime.QuarkusPrincipal;
import io.quarkus.security.runtime.QuarkusSecurityIdentity;

@ApplicationScoped
public class CustomSecurityProvider implements LambdaIdentityProvider {
    @Override
    public SecurityIdentity authenticate(APIGatewayV2HTTPEvent event) {
        if (event.getHeaders() == null || !event.getHeaders().containsKey("x-user"))
            return null;
        Principal principal = new QuarkusPrincipal(event.getHeaders().get("x-user"));
        QuarkusSecurityIdentity.Builder builder = QuarkusSecurityIdentity.builder();
        builder.setPrincipal(principal);
        return builder.build();
    }
}

package org.acme;

import java.security.Principal;

import jakarta.enterprise.context.ApplicationScoped;

import io.quarkus.amazon.lambda.http.model.AwsProxyRequest;

import io.quarkus.amazon.lambda.http.LambdaIdentityProvider;
import io.quarkus.security.identity.SecurityIdentity;
import io.quarkus.security.runtime.QuarkusPrincipal;
import io.quarkus.security.runtime.QuarkusSecurityIdentity;

@ApplicationScoped
public class CustomSecurityProvider implements LambdaIdentityProvider {
    @Override
    public SecurityIdentity authenticate(AwsProxyRequest event) {
        if (event.getMultiValueHeaders() == null || !event.getMultiValueHeaders().containsKey("x-user"))
            return null;
        Principal principal = new QuarkusPrincipal(event.getMultiValueHeaders().getFirst("x-user"));
        QuarkusSecurityIdentity.Builder builder = QuarkusSecurityIdentity.builder();
        builder.setPrincipal(principal);
        return builder.build();
    }
}