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The tutorial

Curriculum

61 lessons in dependency order. Each entry links to a full write-up and the complete test suite from steps/.

01
Foundations6 lessons
Why Effect2
  1. 01-the-problemThe Problem
  2. 02-description-vs-executionDescription vs Execution
Result Types & Errors2
  1. 03-result-typesResult Types
  2. 04-error-typesError Types
Effect Basics2
  1. 05-effect-basicsEffect Basics
  2. 06-pipe-and-flowPipe & Flow
02
Working with Effects8 lessons
Generators2
  1. 07-effect-genEffect.gen
  2. 08-sync-vs-async-constructorsSync vs Async Constructors
Error Handling2
  1. 09-error-handlingError Handling
  2. 10-error-accumulationError Accumulation
Composition3
  1. 11-option-eitherOption & Result
  2. 12-combining-effectsCombining Effects
  3. 13-async-operationsAsync Operations
Running Effects1
  1. 14-runnersRunners
03
Modeling Data & Errors6 lessons
Tagged Data2
  1. 15-dataData
  2. 16-branded-typesBranded Types
Pattern Matching1
  1. 17-pattern-matchingPattern Matching
Schema3
  1. 18-schema-modelingSchema Modeling
  2. 19-schema-classesSchema Classes
  3. 20-schema-transformationsSchema Transformations
04
Services & Dependency Injection7 lessons
Context & Layers2
  1. 21-context-basicsContext Basics
  2. 22-layersLayers
Service Patterns2
  1. 23-service-drivenService-Driven Development
  2. 24-advanced-diAdvanced DI
Config & Tracing3
  1. 25-configConfig
  2. 26-loggerLogger & Effect.log
  3. 27-effect-fnEffect.fn
05
Testing3 lessons
Testing with Effect3
  1. 28-testing-basicsTesting Basics
  2. 29-test-layersTest Layers
  3. 30-test-clockTestClock
06
Resilience & Streams4 lessons
Resilience3
  1. 31-schedulesSchedules
  2. 32-retry-and-timeoutRetry & Timeout
  3. 33-source-patternsSource Patterns
Streams1
  1. 34-streamsStreams
07
Concurrency & State13 lessons
Fibers & Concurrency4
  1. 35-concurrencyConcurrency
  2. 36-fibersFibers
  3. 37-interruptionInterruption
  4. 38-semaphoreSemaphore
Mutable State3
  1. 39-refRef
  2. 40-synchronized-refSynchronizedRef
  3. 41-subscription-refSubscriptionRef
Coordination4
  1. 42-queueQueue
  2. 43-deferredDeferred
  3. 44-latchLatch
  4. 45-pubsubPubSub
Resources2
  1. 46-scopeScope
  2. 47-cacheCache
08
Errors at Depth1 lesson
Cause & Sandbox1
  1. 48-cause-and-sandboxCause & Sandbox
09
Real-World Capstones3 lessons
Case Studies3
  1. 49-payment-systemPayment System
  2. 50-ecommerce-checkoutE-commerce Checkout
  3. 50a-swapi-api-clientSWAPI API Client
10
Production10 lessons
Project Setup5
  1. 51-project-setupProject Setup
  2. 52-tsconfigtsconfig
  3. 53-project-structureProject Structure
  4. 54-incremental-adoptionIncremental Adoption
  5. 55-use-patternUse Pattern
Integration4
  1. 56-redactedRedacted
  2. 57-http-client-patternsHTTP Client Patterns
  3. 58-observabilityObservability
  4. 59-cli-patternsCLI Patterns
Runtime1
  1. 60-runtimeRuntime
Start at lesson one