James Earl Douglas

• james@earldouglas.com
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Talks

2017

• Functional infrastructure

2016

• Purifying code with algebra
• Literate programming with codedown
• Functional refactoring
• Applicative validation in Scala
• Introduction to monads

2015

• Scala via JavaScript
• Nix, plus or minus Cabal
• Types and JavaScript
• Discovering knowledge in linked data
• SOA proliferation through specification

2014

• Scala DevOps: Collaborative development and continuous deployment
• Putting functional programming to work
• Real-world functional programming

2013

• Rapid Scala development with sbt
• Scala in 2018: SF Scala panel with Rod Johnson
• Hands-on category theory
• TDD with FireOtter
• Dependency injection with Jellyfish

2012

• The state monad
• Imperative Web workflows via delimited continuations

2011

• Functional Reactive UI Thing
• Swarm: Transparent scalability through portable continuations

Posts

2017

• Request suspension in Scotty with STM
• Free Monad from scratch
• Measuring timing in a free algebra
• Free Coyoneda in scalaz 7.2
• Standardized ladder of functional programming
• Scaling out with xsbt-web-plugin
• Faster turnaround with xsbt-web-plugin
• Safer refactoring with newtype
• Bootstrapping Lift
• Not in the Box; in the BandT
• Applicative and monadic parsing

2016

• Haskell recipes
• Access control
• Developing Idris with Nix
• A checklist for test-driven development
• Using SSL and Tomcat with xsbt-web-plugin
• Codedown
• A DSL for testing in JavaScript
• Functional Programming in Haskell
• The reader monad in JavaScript
• Headless Raspberry Pi Zero
• Workbench
• NixOps cloud deployment tool
• I-beam saw horses
• Pergola canopy
• Garage shelves
• Accidental optimization via I/O indirection
• Simpler Haskell development with Nix
• GADTing rid of IO
• Haskeval
• Categories for the Working Programmer
• Developing Web apps with Haskell and Yesod
• Combos
• Higher-kinded types in Scala
• Event sourcing
• A progression of purity
• Go
• Functional refactoring
• Literate programming in Scala with codedown
• Nix package manager
• Nix is awesome, and you should too
• Applicative do-notation
• List zipper in Scala
• Basic ScalaCheck usage
• Functional Programming in Scala
• Real-world currying
• Request suspension in Scotty with MVar
• Progressions of concision
• Monadish
• Fun with functions
• Production Haskell
• Nix recipes

2015

• Learning Cats
• Set has not a functor
• Monadic authentication in Scala
• Newtype vs. newtype in Scala
• Dockerizing a simple Python Web application
• Context-based authorization by program access level
• Generics, semigroup laws, and lying about code
• Continuous integration for Python
• Backup Gmail with getmail
• NixOS Linux distribution
• Sad trombone.
• LambdaConf 2015: Haskell web workshop
• Proving the functor laws with Leon
• Statically-typed functional lists in Python with Mypy
• Statically-typed validation in Python with Mypy
• MediaWiki development and administration
• Specified Versioning
• NICTA functional programming course
• Portable JavaScript
• Linux administration and use
• Getting things done
• Haskell development with Nix
• Learning Scalaz from learning Scalaz
• Sequencing futures in JavaScript
• Reading list
• Wiktionary query
• Wikipedia query
• Futures in JavaScript
• Wikidata Explorer
• A strategy for task prioritization
• Custom query parsing with an Elasticsearch plugin
• Node.js project quick-start
• RDF, XSD dates, and the beginning of time
• Setting up a Node.js development environment
• RDF date range queries in SPARQL
• Entailment, inference, and truth in Blazegraph
• OpenRDF Java client for Blazegraph
• Retrieving HTTP headers in Java
• Spectre Detector v1.0
• Marky Mark
• Theorems in PHP for minimal cost
• Parametricity in JavaScript via TypeScript
• Code coverage
• HTTP testing in Node with preq

2014

• Ray casting
• Arrows in JavaScript
• Creating a Node.js project with grunt-init
• Filesystem JSON (de)serialization with Node.js
• Server-side Mustache templating with Node.js
• Porting functional JavaScript to TypeScript
• Function currying in JavaScript
• Applicative functors in JavaScript
• Applicative validation in JavaScript
• Asynchronous processing with Servlets
• A simple Web effect system for Scala
• Progressive enhancement
• Budgetr
• A simple effect system for Scala
• Gravity
• Covariance in Scala
• The option monad in Scala
• Scala method logging with AspectJ
• Passwordless authentication in Scala
• Scalave
• Maven template
• JDBC database access in Scala
• Dependency injection in Scala
• Continuous deployment for Scala
• Functional state in Scala
• Trampolines in Scala
• Monads in Java
• Functors in Java
• Chunked HTTP with Ajax and Scala
• Continuous integration for Scala
• Monad transformers in Scala
• Infix functions with Scala type classes

2013

• Embedding Jetty in Scala
• Databases in Haskell with mysql-simple
• Type classes in Scala
• Functional debugging in Scala
• Ad-hoc polymorphism in Standard ML
• Currying for type inference in Scala
• Type Lambdas in Scala
• Monads in Scala
• Functors in Scala
• Hands-on Category Theory
• Combining streams in Java
• Custom Tasks in sbt
• Mustache templates in Scala
• That's the joke.
• Getting started with xsbt-web-plugin
• Constructive mathematics with Scala macros
• Using java.io.Closeable as a Monad

2012

• Type classes, category theory, and Scala
• Beyond the Reader Monad: Dependency injection with Jellyfish
• Speaking both JSON and XML with Spring MVC
• A performance shootout for RESTful libraries
• Modelling data in Spring MVC
• Rendering views with Spring MVC
• Getting started with Spring MVC
• Installing the Frege IDE on OSX
• A servlet-based web app with Frege
• Introduction to delimited continuations
• Functional programming in C
• Unboxed tagged types in Scala
• Scoped sbt-assembly
• Functional JDBC database interaction in Java
• Arrows and Scala implicit conversions
• Monadic parsing in Haskell (Maybe)
• Function memoization in Scala and Haskell
• JUnit test support in sbt

2011

• Suspendable recursion with Scala continuations
• Continuation-based Web workflows
• Asynchronous network I/O with Scala continuations
• Why mocks matter
• The Builder pattern in Scala
• Scoped dependencies in single-JAR SBT projects
• Monadic continuations in Scala
• Asynchronous console I/O with Scala continuations
• Consuming the Twitter API in Scala with Scribe
• Actor-based continuations with Akka and Swarm
• Tracking laptop battery degradation
• Mimicking Twitter using an Akka-based event-driven architecture
• A configurable IP address filter for J2EE web applications
• Screen resolution comparator
• Web-based Akka management and monitoring
• Remote actor class loading with Akka
• Estimating Pi with Akka
• Tail recursion in Scala
• Scoped Bean Dependencies

2010

• Barebones Spring MVC part 8: Externalization and internationalization
• Barebones Spring MVC part 7: RESTful Web services
• Barebones Spring MVC part 6: Database integration
• Barebones Spring MVC part 5: Security
• Barebones Spring MVC part 4: Rich client validation
• Barebones Spring MVC part 3: Form validation
• Barebones Spring MVC part 2: Annotation configuration
• Ten tips to establish clear boundaries between application tiers
• Simple performance testing with Spring
• Declaring a ceasefire between Eclipse and GTK+
• File encryption and decryption with OpenSSL
• Testing Web applications with Jetty
• A self-contained runnable Web application
• Data at rest encryption with Jasypt and Hibernate

2009

• Secure coding at Starbucks with SSH
• A secure RESTful Web service
• Securing communications with SSH tunneling
• A contract-first Web service with Spring-WS
• Krypto
• Wrangling the Class Path with Download Extensions
• JSR-330 compliance with Spring
• Method logging with Spring AOP
• Comparing Guice with Spring JavaConfig
• Guice with a Spring Twist
• Hello Guice!
• Barebones Spring MVC part 1: Core
• A simple embedded Jetty server
• Dependency injection, hold the mayo
• Extending StopWatch's mathiness
• Exploring Spring's Autowired annotation
• Self-validaing domain objects, part two
• Self-validaing domain objects
• Custom annotation configuration for Spring Remoting, part two
• Extending Spring's JdbcTestUtils
• Custom annotation configuration for Spring Remoting
• Database access with Hibernate and Spring
• Simple remoting with Spring