In this post, we will see how to resolve Using JSON_EXTRACT or JSON_EXTRACT_SCALAR in Presto SQL or Scala Question: id value 123 {78kfcX={“Sent”: 77, “Respond”: 31, “NoResponse”: 31}, 97Facz={“Sent”: 45, “Respond”: 31, “NoResponse”: 31}} 333 {5mdzrZ={“Sent”: 1, “Respond”: 1, “NoResponset”: ...
In this post, we will see how to resolve kafka scala consumer not reading messages from topic no error in console Question: I have the below sample code to read messages from a Kafka topic Which is not reading any ...
In this post, we will see how to resolve How to format / parse a Date in Scala and ScalaJS Question: I want to use Dates in shared code (JVM and JS). So I need the functionality to parse a ...
In this post, we will see how to resolve Why can’t sbt/assembly find the main classes in a project with multiple subprojects? Question: We’re combining two of our Scala projects because they share a lot of functionality. I’m setting up ...
In this post, we will see how to resolve Problem when adding dependencies to build.sbt Question: I have the following snippet of code in my build.sbt file for a Scala project: However, I faced this error: Would anyone know why ...
In this post, we will see how to resolve Websocket with BlockingQueue subscription Question: I want to build a GraphQl-like subscription where a client via websocket can ask the Akka Http server to subscribe to updated results from a database ...
In this post, we will see how to resolve Compilation errors with Scala imports Question: I have the following code in my build.sbt file for a Scala project: However, in another file when I try to import as such: I ...
In this post, we will see how to resolve Unnamed module error when starting JFXApp3 with Scala Question: I am trying to create an app with Scala and the following is my main file: And below is some relevant code ...
In this post, we will see how to resolve Understanding for in scala Question: I run the following code to understand the functioning of the for comprehensions in scala The output that I see tells me that maybe it is ...
In this post, we will see how to resolve How to perform safe pattern matching on existential types in Scala 2.13? Question: Note: This is a contrived example. Consider the following existential type. I can define a show method as ...