ConnectionId for API Gateway requests is missing

[AntonRamashko]

As in code example from Node.js from here connectionId is used to manage WebSocket sessions:

exports.handler = function(event, context, callback) {
var deleteParams = {
    TableName: process.env.TABLE_NAME,
    Key: {
     connectionId: { S: event.requestContext.connectionId }
    }
};

Meanwhile Java class com.amazonaws.services.lambda.runtime.events.APIGatewayProxyRequestEvent.ProxyRequestContext doesn't have such field.

[PatrykGala]

I've used workaround:

public class ConnectHandler implements RequestHandler<Map<String, Object>, ApiGatewayResponse> {
    private static final Logger LOG = LogManager.getLogger(ConnectHandler.class);

    @Override
    public ApiGatewayResponse handleRequest(Map<String, Object> input, Context context) {
        String connectionId = extractConnectionId(input);
        LOG.info("connectionid: {}", connectionId);
        return ApiGatewayResponse.ok(connectionId);
    }

    private String extractConnectionId(Map<String, Object> input) {
        Map<String, Object> requestContext = (Map<String, Object>) input.get("requestContext");
        return (String) requestContext.get("connectionId");
    }
}

[lucasam]

I believe this PR #92 fixes this issue.
A new class https://github.com/aws/aws-lambda-java-libs/blob/master/aws-lambda-java-events/src/main/java/com/amazonaws/services/lambda/runtime/events/APIGatewayV2ProxyRequestEvent.java is created to handle APIGatewayV2 parameters

Still not present at version 2.6.0. Needs to be built from sources

[carlzogh]

@lucasam APIGatewayV2ProxyRequestEvent was added in version 2.2.7