Order of Operations

Demis Bellot edited this page Oct 25, 2016 · 19 revisions


  1. Getting Started

    1. Creating your first project
    2. Create Service from scratch
    3. Your first webservice explained
    4. Example Projects Overview
    5. Learning Resources
  2. Designing APIs

    1. ServiceStack API Design
    2. Designing a REST-ful service with ServiceStack
    3. Simple Customer REST Example
    4. How to design a Message-Based API
    5. Software complexity and role of DTOs
  3. Reference

    1. Order of Operations
    2. The IoC container
    3. Configuration and AppSettings
    4. Metadata page
    5. Rest, SOAP & default endpoints
    6. SOAP support
    7. Routing
    8. Service return types
    9. Customize HTTP Responses
    10. Customize JSON Responses
    11. Plugins
    12. Validation
    13. Error Handling
    14. Security
    15. Debugging
    16. JavaScript Client Library (ss-utils.js)
  4. Clients

    1. Overview
    2. C#/.NET client
      1. .NET Core Clients
    3. Add ServiceStack Reference
      1. C# Add Reference
      2. F# Add Reference
      3. VB.NET Add Reference
      4. Swift Add Reference
      5. Java Add Reference
    4. Silverlight client
    5. JavaScript client
      1. Add TypeScript Reference
    6. Dart Client
    7. MQ Clients
  5. Formats

    1. Overview
    2. JSON/JSV and XML
    3. HTML5 Report Format
    4. CSV Format
    5. MessagePack Format
    6. ProtoBuf Format
  6. View Engines 4. Razor & Markdown Razor

    1. Markdown Razor
  7. Hosts

    1. IIS
    2. Self-hosting
    3. Messaging
    4. Mono
  8. Security

    1. Authentication
    2. Sessions
    3. Restricting Services
    4. Encrypted Messaging
  9. Advanced

    1. Configuration options
    2. Access HTTP specific features in services
    3. Logging
    4. Serialization/deserialization
    5. Request/response filters
    6. Filter attributes
    7. Concurrency Model
    8. Built-in profiling
    9. Form Hijacking Prevention
    10. Auto-Mapping
    11. HTTP Utils
    12. Dump Utils
    13. Virtual File System
    14. Config API
    15. Physical Project Structure
    16. Modularizing Services
    17. MVC Integration
    18. ServiceStack Integration
    19. Embedded Native Desktop Apps
    20. Auto Batched Requests
    21. Versioning
    22. Multitenancy
  10. Caching

  11. Caching Providers

  12. HTTP Caching

  13. CacheResponse Attribute

  14. Cache Aware Clients

  15. Auto Query

  16. Overview

  17. Why Not OData

  18. AutoQuery RDBMS

  19. AutoQuery Data

  20. AutoQuery Memory

  21. AutoQuery Service

  22. AutoQuery DynamoDB

  23. Server Events

    1. Overview
    2. JavaScript Client
    3. C# Server Events Client
    4. Redis Server Events
  24. Service Gateway

    1. Overview
    2. Service Discovery
  25. Encrypted Messaging

    1. Overview
    2. Encrypted Client
  26. Plugins

    1. Auto Query
    2. Server Sent Events
    3. Swagger API
    4. Postman
    5. Request logger
    6. Sitemaps
    7. Cancellable Requests
    8. CorsFeature
  27. Tests

    1. Testing
    2. HowTo write unit/integration tests
  28. ServiceStackVS

    1. Install ServiceStackVS
    2. Add ServiceStack Reference
    3. TypeScript React Template
    4. React, Redux Chat App
    5. AngularJS App Template
    6. React Desktop Apps
  29. Other Languages

    1. FSharp
      1. Add ServiceStack Reference
    2. VB.NET
      1. Add ServiceStack Reference
    3. Swift
    4. Swift Add Reference
    5. Java
      1. Add ServiceStack Reference
      2. Android Studio & IntelliJ
      3. Eclipse
  30. Amazon Web Services

  31. ServiceStack.Aws

  32. PocoDynamo

  33. AWS Live Demos

  34. Getting Started with AWS

  35. Deployment

    1. Deploy Multiple Sites to single AWS Instance
      1. Simple Deployments to AWS with WebDeploy
    2. Advanced Deployments with OctopusDeploy
  36. Install 3rd Party Products

    1. Redis on Windows
    2. RabbitMQ on Windows
  37. Use Cases

    1. Single Page Apps
    2. HTML, CSS and JS Minifiers
    3. Azure
    4. Connecting to Azure Redis via SSL
    5. Logging
    6. Bundling and Minification
    7. NHibernate
  38. Performance

    1. Real world performance
  39. Other Products

    1. ServiceStack.Redis
    2. ServiceStack.OrmLite
    3. ServiceStack.Text
  40. Future

    1. Roadmap
Clone this wiki locally

This page has moved to docs.servicestack.net/order-of-operations


HTTP Custom hooks

This list shows the order in which any user-defined custom hooks are executed:

  1. HostContext.RawHttpHandlers are executed before anything else, i.e. returning any ASP.NET IHttpHandler by-passes ServiceStack completely and processes your custom IHttpHandler instead.
  2. If the Request doesn't match any existing Routes it will search IAppHost.CatchAllHandlers for a match
  3. The IAppHost.PreRequestFilters gets executed before the Request DTO is deserialized
  4. Default Request DTO Binding or Custom Request Binding (if registered)
  5. Any Request Converters are executed
  6. Request Filter Attributes with Priority < 0 gets executed
  7. Then any Global Request Filters get executed
  8. Followed by Request Filter Attributes with Priority >= 0
  9. Action Request Filters
  10. Then your Service is executed with the configured IServiceRunner and its OnBeforeExecute, OnAfterExecute and HandleException custom hooks are fired
  11. Action Response Filters
  12. Any Response Converters are executed
  13. Followed by Response Filter Attributes with Priority < 0
  14. Then Global Response Filters
  15. Followed by Response Filter Attributes with Priority >= 0
  16. Finally at the end of the Request IAppHost.OnEndRequest and any IAppHost.OnEndRequestCallbacks are fired

Any time you close the Response in any of your filters, i.e. httpRes.EndRequest() the processing of the response is short-circuited and no further processing is done on that request.

MQ (non-HTTP) Custom hooks

  1. Any Global Request Filters get executed
  2. Followed by Request Filter Attributes with Priority >= 0
  3. Action Request Filters
  4. Then your Service is executed with the configured IServiceRunner and its OnBeforeExecute, OnAfterExecute and HandleException custom hooks are fired
  5. Action Response Filters
  6. Then Global Response Filters
  7. Finally at the end of the Request IAppHost.OnEndRequest is fired

Implementation architecture diagram

The Implementation architecture diagram shows a visual cue of the internal order of operations that happens in ServiceStack:

ServiceStack Overview

After the IHttpHandler is returned, it gets executed with the current ASP.NET or HttpListener request wrapped in a common IHttpRequest instance.

The implementation of RestHandler shows what happens during a typical ServiceStack request:

ServiceStack Request Pipeline