Tags » scala

• TIL: Getting the base directory of an sbt project

  Some notes on printing sbt settings, so you can use them as the input to another script.

• Running concurrent Try functions in Scala

  If you have a function that returns Try[_], how do you call it more than once at the same time?

• Comparing JSON strings when testing in Scala

  There are lots of ways to format JSON. How do you know if two JSON strings have the same data, just differently formatted?

• Streaming large objects from S3 with ranged GET requests

  Reliably reading a large object by stitching together multiple GetObject requests into a single Java InputStream.

• Iterating over the entries of a compressed archive (tar.gz) in Scala

  Code to turn an InputStream into an Iterator of entries from a tar.gz file or similar compressed archive in Java/Scala.

• Creating a locking service in a Scala type class

  Breaking down some tricky code that allows us to lock over concurrent operations.

• TIL: DynamoDB: Conditional updates on nested fields

• TIL: How to iterate over the lines of an InputStream in Scala

• Custom 404 responses in Finatra

  A snippet for returning a custom 404 response in a Finatra app when somebody requests a missing page.

• Implementing parallel scan in DynamoDB with Scanamo

  Prototype code for running a parallel scan against a DynamoDB table, and using Scanamo to serialise rows as Scala case classes.