endly

README

Declarative end to end functional testing (endly)

This library is compatible with Go 1.12+

Please refer to CHANGELOG.md if you encounter breaking changes.

• Motivation

• Introduction

• Getting Started

• Documentation

• License

• Credits and Acknowledgements

Motivation

Endly is comprehensive workflow based automation and end-to-end (E2E) testing tool designed to simulate a production environment as closely as possible. This includes the full spectrum of network communications, user interactions, data storage, and other dependencies. By doing so, it aims to ensure that systems are thoroughly tested under conditions that mimic real-world operations, helping to identify and address potential issues before deployment.

Introduction

Endly is a highly versatile automation and orchestration platform that provides a wide range of services to support various aspects of software development, testing, deployment, and operations.

Below is a summary of the types of services Endly can orchestrate, grouped by their primary functionality:

Platform, Infrastructure and Cloud Providers:

• Docker(docker): Provides services for managing Docker containers and executing commands over SSH within Docker environments, enhancing container management and deployment.
• AWS Services(aws/*): Offers orchestration for numerous AWS services, including API Gateway, CloudWatch, DynamoDB, EC2, IAM, Kinesis, KMS, Lambda, RDS, S3, SES, SNS, SQS, and SSM. These services enable management and automation of AWS resources, monitoring, notification, and security.
• GCP Services(gcp/*): Supports Google Cloud Platform resources such as BigQuery, Cloud Functions, Cloud Scheduler, Compute Engine, GKE (Google Kubernetes Engine), KMS, Pub/Sub, Cloud Run, and Cloud Storage. These services are essential for managing Google Cloud resources, data analysis, event-driven computing, and storage.

Environment/System Management

• Exec(exec): This service is central to executing shell commands, allowing for automation of tasks that interact directly with the operating system. This capability is essential for setting up environments, running scripts, and performing system-level operations, thereby serving as a foundation for environment and system management within Endly's orchestration capabilities.
• Process(process): Manages processes or daemons on the system, enabling control over the lifecycle of various applications or services running in the background. This service is key for ensuring that necessary services are operational during testing or deployment, and for automating start, stop, and restart operations of system services as part of environment setup and maintenance.
• Storage(storage): Facilitates the management of file-based assets, including uploading, downloading, and managing files. This service is crucial for handling configuration files, test data, and other file-based resources needed throughout the automation, testing, and deployment processes. It supports the simulation of real-world environments by ensuring the correct setup of file systems and data storage scenarios.
• Secret(secret): Manages safe access to secrets, such as passwords and API keys, crucial for maintaining security in automated processes.

Development and Deployment

• Version control(vc) service to manage source code.
• SDK(sdk) service for setting specific sdk (go/node)

Database and Data Management

• DSUnit(dsunit): Facilitates database testing, supporting the setup and teardown of database states for testing purposes.

Testing and Integration

• HTTP/REST(http/runner): Provides tools for testing and interacting with HTTP endpoints and RESTful APIs. This service is instrumental in API testing, allowing for the automation of requests, response validation, and the simulation of various API usage scenarios. It supports both the verification of external services and the testing of application interfaces, making it a vital component for ensuring the functionality and reliability of web services and applications. In addition, runner allows can be used as load testing tool, enabling the simulation of high traffic scenarios to evaluate system performance and scalability. This service is essential for assessing the robustness of applications under heavy loads and for identifying performance bottlenecks that may arise in production environments.
• HTTP/Endpoint(http/endpoint): This service extends Endly's capabilities into the realm of HTTP communication testing by allowing users to listen to existing HTTP interactions, record them, and subsequently mock these interactions for the purpose of testing. This functionality is particularly useful for simulating third-party HTTP integrations without the need for the third-party services to be actively involved in the testing process. By capturing and replicating the behavior of external HTTP services, it enables developers to conduct thorough testing of application integrations in a controlled, predictable environment. This approach ensures that applications can gracefully handle external HTTP requests and responses, facilitating the validation of integration points with external APIs and services. The ability to mock external HTTP interactions is invaluable for continuous integration and testing workflows, where external dependencies must be accurately simulated to verify application functionality and resilience.
• WebDrvier(webdriver): Supports browser-based testing and automation, essential for web application testing.
• Validator(validator): Provides validation services, including log validation, to ensure that applications behave as expected.
• Postman (migration/postman): Service for migrating postman scripts into endly workflow.
• Rest(rest): Service for testing REST API.

Communication and Messaging

• Message Bus(msg): Universal message bus service for testing queue, topic and subscription
• SMTP (smtp): Service for sending emails.
• Slack (slack): Services for sending Slack messages, enabling notifications and alerts as part of the automation workflows.

Endly is open source project to check the latest list of endly supported service run on terminal:

endly -s='*'

Getting Started

Installation

• Install/Download
• Endly docker image

Examples:

a) Infrastructure/Environment preparation

For instance: the following define inline workflow to prepare app system services:

@system.yaml

tasks: $tasks
defaults:
  target: $serviceTarget
pipeline:
  destroy:
    stop-images:
      action: docker:stop
      images:
        - mysql
        - aerospike
  init:
    services:
      mysql:
        workflow: "service/mysql:start"
        name: mydb3
        version: $mysqlVersion
        credentials: $mysqlCredentials
        config: config/my.cnf
      aerospike:
        workflow: "service/aerospike:start"
        name: mydb4
        config: config/aerospike.conf

b) Application build and deployment

For instance: the following define inline workflow to build and deploy a test app: (you can easily build an app for standalone mode or in and for docker container)

With Dockerfile build file and docker compose

@app.yaml

tasks: $tasks
init:
- buildPath = /tmp/build/myapp/
- version = 0.1.0
defaults:
  app: myapp
  version: 0.1.0
  useRegistry: false
pipeline:
  build:
    init:
      action: exec:run
      target: $target
      commands:
      - if [ -e $buildPath ]; then rm -rf $buildPath; fi
      - mkdir -p $buildPath
    checkout:
      action: version/control:checkout
      origin:
        URL: https://github.com/adrianwit/dstransfer
      dest:
        URL: scp://${targetHost}:22/$buildPath
        credentials: localhost
    download:
      action: storage:copy
      source:
        URL: config/Dockerfile
      dest:
        URL: $buildPath
        credentials: localhost
    build-img:
      action: docker:build
      target: $target
      path: $buildPath
      '@tag':
        image: dstransfer
        username: adrianwit
        version: 0.1.0
  stop:
    target: $appTarget
    action: docker/ssh:composeDown
    source:
      URL: config/docker-compose.yaml
  deploy:
    target: $appTarget
    action: docker/ssh:composeUp
    runInBackground: true
    source:
      URL: config/docker-compose.yaml

As Standalone app (with predefined shared workflow)

@app.yaml

init:
  buildTarget:
    URL: scp://127.0.0.1/tmp/build/myApp/
    credentials: localhost
  appTarget:
    URL: scp://127.0.0.1/opt/myApp/
    credentials: localhost
  target:
    URL: scp://127.0.0.1/
    credentials: localhost
defaults:
  target: $target

pipeline:

  build:
    checkout:
      action: version/control:checkout
      origin:
        URL: ./../ 
        #or https://github.com/myRepo/myApp
      dest: $buildTarget
    set-sdk:
      action: sdk:set
      sdk: go:1.17
    build-app:
      action: exec:run
      commands:
        - cd /tmp/build/myApp/app
        - export GO111MODULE=on
        - go build myApp.go
        - chmod +x myApp
    deploy:
      mkdir:
        action: exec:run
        commands:
          - sudo rm -rf /opt/myApp/
          - sudo mkdir -p /opt/myApp
          - sudo chown -R ${os.user} /opt/myApp

      install:
        action: storage:copy
        source: $buildTarget
        dest: $appTarget
        expand: true
        assets:
          app/myApp: myApp
          config/config.json: config.json

  stop:
    action: process:stop
    input: myApp

  start:
    action: process:start
    directory: /opt/myApp
    immuneToHangups: true
    command: ./myApp
    arguments:
      - "-config"
      - "config.json"

c) Datastore/database creation

For instance: the following define inline workflow to create/populare mysql and aerospike database/dataset:

@datastore.yaml

pipeline:
  create-db:
    db3:
      action: dsunit:init
      scripts:
        - URL: datastore/db3/schema.ddl
      datastore: db3
      recreate: true
      config:
        driverName: mysql
        descriptor: "[username]:[password]@tcp(127.0.0.1:3306)/[dbname]?parseTime=true"
        credentials: $mysqlCredentials
      admin:
        datastore: mysql
        config:
          driverName: mysql
          descriptor: "[username]:[password]@tcp(127.0.0.1:3306)/[dbname]?parseTime=true"
          credentials: $mysqlCredentials
    db4:
      action: dsunit:init
      datastore: db4
      recreate: true
      config:
        driverName: aerospike
        descriptor: "tcp([host]:3000)/[namespace]"
        parameters:
          dbname: db4
          namespace: db4
          host: $serviceHost
          port: 3000
  populate:
    db3:
      action: dsunit:prepare
      datastore: db3
      URL: datastore/db3/dictionary
    db4:
      action: dsunit:prepare
      datastore: db4
      URL: datastore/db4/data

endly -r=datastore

d) Creating setup / verification dataset from existing datastore

For instance: the following define inline workflow to create setup dataset SQL based from on existing database

@freeze.yaml

pipeline:
  db1:
    register:
      action: dsunit:register
      datastore: db1
      config:
        driverName: bigquery
        credentials: bq
        parameters:
          datasetId: adlogs

    reverse:
      takeSchemaSnapshot:
        action: dsunit:dump
        datastore: db1
        # leave empty for all tables
        tables:
          - raw_logs
        #optionally target for target vendor if different that source  
        target: mysql 
        destURL: schema.sql
        
      takeDataSnapshot:
        action: dsunit:freeze
        datastore: db1
        destURL: db1/prepare/raw_logs.json
        omitEmpty: true
        ignore:
          - request.postBody
        replace:
          request.timestamp: $$ts
        sql:  SELECT request, meta, fee
                FROM raw_logs 
                WHERE requests.sessionID IN(x, y, z)

endly -r=freeze

e) Comparing SQL based data sets

endly -r=compare

@compare.yaml

pipeline:
  register:
    verticadb:
      action: dsunit:register
      datastore: db1
      config:
        driverName: odbc
        descriptor: driver=Vertica;Database=[database];ServerName=[server];port=5433;user=[username];password=[password]
        credentials: db1
        parameters:
          database: db1
          server: x.y.z.a
          TIMEZONE: UTC
    bigquerydb:
      action: dsunit:register
      datastore: db2
      config:
        driverName: bigquery
        credentials: db2
        parameters:
          datasetId: db2
  compare:
    action: dsunit:compare
    maxRowDiscrepancy: 10
    ignore:
      - field10
      - fieldN
    directives:
      "@numericPrecisionPoint@": 7
      "@coalesceWithZero@": true
      "@caseSensitive@": false
    
    source1:
      datastore: db1
      SQL: SELECT * 
           FROM db1.mytable 
           WHERE DATE(ts) BETWEEN '2018-12-01' AND '2018-12-02' 
           ORDER BY 1

    source2:
      datastore: db2
      SQL: SELECT *
           FROM db2.mytable
           WHERE DATE(ts) BETWEEN '2018-12-01' AND '2018-12-02'
           ORDER BY 1

f) Testing

For instance: the following define inline workflow to run test with selenium runner:

@test.yaml

defaults:
  target:
     URL: ssh://127.0.0.1/
     credentials: localhost
pipeline:
  init:
    action: selenium:start
    version: 3.4.0
    port: 8085
    sdk: jdk
    sdkVersion: 1.8
  test:
    action: selenium:run
    browser: firefox
    remoteSelenium:
      URL: http://127.0.0.1:8085
    commands:
      - get(http://play.golang.org/?simple=1)
      - (#code).clear
      - (#code).sendKeys(package main

          import "fmt"

          func main() {
              fmt.Println("Hello Endly!")
          }
        )
      - (#run).click
      - command: output = (#output).text
        exit: $output.Text:/Endly/
        sleepTimeMs: 1000
        repeat: 10
      - close
    expect:
      output:
        Text: /Hello Endly!/

endly -r=test

g) Stress testing:

The following define inline workflow that loads request and desired responses from data folder for stress testing.

@load.yaml

init:
  testEndpoint: z.myendoint.com
pipeline:
  test:
    tag: StressTest
    data:
      []Requests: '@data/*request.json'
      []Responses: '@data/*response.json'
    range: '1..1'
    template:
      info:
        action: print
        message: starting load testing 
      load:
        action: 'http/runner:load'
        threadCount: 3
        '@repeat': 100
        requests: $data.Requests
        expect:
          Responses: $data.Responses
      load-info:
        action: print
        message: 'QPS: $load.QPS: Response: min: $load.MinResponseTimeInMs ms, avg: $load.AvgResponseTimeInMs ms max: $load.MaxResponseTimeInMs ms'

Where data folder contains http request and desired responses i.e

@data/XXX_request.json

{
  "Method":"get",
  "URL":"http://${testEndpoint}/bg/?pixid=123"
}

@data/XXX_response.json

{
  "Code":200,
  "Body":"/some expected fragement/"
}

endly -r=load

h) Serverless e2e testing with cloud function

@test.yaml

defaults:
  credentials: am
pipeline:
  deploy:
    action: gcp/cloudfunctions:deploy
    '@name': HelloWorld
    entryPoint: HelloWorldFn
    runtime: go111
    source:
      URL: test/
  test:
    action: gcp/cloudfunctions:call
    logging: false
    '@name': HelloWorld
    data:
      from: Endly
  info:
    action: print
    message: $test.Result
  assert:
    action: validator:assert
    expect: /Endly/
    actual: $test.Result
  undeploy:
    action: gcp/cloudfunctions:delete
    '@name': HelloWorld

i) Serverless e2e testing with lambda function

@test.yaml

init:
  functionRole: lambda-loginfo-executor
  functionName: LoginfoFn
  codeZip: ${appPath}/loginfo/app/loginfo.zip
  privilegePolicy: ${parent.path}/privilege-policy.json
pipeline:
  deploy:
    build:
      action: exec:run
      target: $target
      errors:
        - ERROR
      commands:
        - cd ${appPath}loginfo/app
        - unset GOPATH
        - export GOOS=linux
        - export GOARCH=amd64
        - go build -o loginfo
        - zip -j loginfo.zip loginfo

    setupFunction:
      action: aws/lambda:deploy
      credentials: $awsCredentials
      functionname: $functionName
      runtime:  go1.x
      handler: loginfo
      code:
        zipfile: $LoadBinary(${codeZip})
      rolename: lambda-loginfo-executor
      define:
        - policyname: s3-mye2e-bucket-role
          policydocument: $Cat('${privilegePolicy}')
      attach:
        - policyarn: arn:aws:iam::aws:policy/service-role/AWSLambdaBasicExecutionRole

    setupAPI:
      action: aws/apigateway:deployAPI
      credentials: aws
      '@name': loginfoAPI
      resources:
        - path: /{proxy+}
          methods:
            - httpMethod: ANY
              functionname: $functionName
    sleepTimeMs: 10000

  test:
    action: rest/runner:send
    URL: ${setupAPI.EndpointURL}oginfo
    method: post
     '@request':
      region: ${awsSecrets.Region}
      URL: s3://mye2e-bucket/folder1/
    expect:
      Status: ok
      FileCount: 2
      LinesCount: 52

To see Endly in action,

End to end testing examples

In addition a few examples of fully functioning applications are included. You can build, deploy and test them end to end all with endly.

1. Web Service

   • Reporter - a pivot table report builder.
     • Test with Rest Runner
     • Data Preparation and Validation (mysql)

2. User Interface

   • SSO - user registration and login application.
     • Test with Selenium Runner
     • Test with HTTP Runner
     • Data Preparation and Validation (aersopike)
     • Web Content validation
     • Mocking 3rd party REST API with http/endpoint service

3. Extract, Transform and Load (ETL)

   • Transformer - datastore to datastore myApp (i.e. aerospike to mysql)
     • Test with Rest Runner
     • Data Preparation and Validation (aersopike, mysql)

4. Runtime - simple http request event logger

   • Logger
     • Test with HTTP Runner
     • Log Validation

5. Serverless - serverless (lambda/cloud function/dataflow)

   • Serverless

Documentation

• Installation
• Secret/Credential
• Inline Workflow
• Workflow
• Service
• Usage
• User Defined Function
• Data store testing

@run.yaml

target:
  URL: "ssh://127.0.0.1/"
  credentials: localhost
systemPaths:
  - /usr/local/go/bin
commands:
  - go version
  - echo $GOPATH

External resources

• Endly introduction
• Software Developement Automation - Part I
• Software Developement Automation - Part II
• ETL end to end testing with docker, NoSQL, RDBMS and Big Query
• Data testing strategy reinvented
• Go lang e2e testing
• Endly UI e2e testing demo

License

The source code is made available under the terms of the Apache License, Version 2, as stated in the file LICENSE.

Individual files may be made available under their own specific license, all compatible with Apache License, Version 2. Please see individual files for details.

TODO

• documentation improvements
• command executor with os/exec.Command
• gcp/containers integration
• gcp/cloudfunctions viant/afs integration
• ufd self describing meta data
• viant/afs docker connector

Contributing to endly

endly is an open source project and contributors are welcome!

Credits and Acknowledgements

Library Author: Adrian Witas

Documentation

Index

• Constants
• Variables
• func GetVersion() string
• func NewDefaultState(ctx *Context) data.Map
• func NewError(service, action string, err error) error
• func Run(context *Context, request, result interface{}) error
• func RunWithoutLogging(context *Context, request, result interface{}) error
• func Services(mgr interface{}) map[string]Service
• type AbstractService
  • func NewAbstractService(id string) *AbstractService
  • func (s *AbstractService) Actions() []string
  • func (s *AbstractService) Begin(context *Context, value interface{}) msg.Event
  • func (s *AbstractService) End(context *Context) func(startEvent msg.Event, value interface{}) msg.Event
  • func (s *AbstractService) GetHostname(target *location.Resource) (string, int)
  • func (s *AbstractService) ID() string
  • func (s *AbstractService) Info() string
  • func (s *AbstractService) Mutex() *sync.RWMutex
  • func (s *AbstractService) Register(routes ...*Route)
  • func (s *AbstractService) Route(action string) (*Route, error)
  • func (s *AbstractService) Run(context *Context, request interface{}) (response *ServiceResponse)
  • func (s *AbstractService) RunInBackground(context *Context, handler func() error) (err error)
  • func (s *AbstractService) Sleep(context *Context, sleepTimeMs int)
  • func (s *AbstractService) State() data.Map
• type ActionInfo
• type Context
  • func (c *Context) AsRequest(serviceName, action string, source map[string]interface{}) (request interface{}, err error)
  • func (c *Context) Background() context.Context
  • func (c *Context) Clone() *Context
  • func (c *Context) Close()
  • func (c *Context) Deffer(functions ...func()) []func()
  • func (c *Context) Expand(text string) string
  • func (c *Context) ExpandResource(resource *location.Resource) (*location.Resource, error)
  • func (c *Context) IsClosed() bool
  • func (c *Context) IsLoggingEnabled() bool
  • func (c *Context) MakeAsyncSafe() *msg.Events
  • func (c *Context) Manager() (Manager, error)
  • func (c *Context) NewRequest(serviceName, action string, rawRequest map[string]interface{}) (result interface{}, err error)
  • func (c *Context) Publish(value interface{}) msg.Event
  • func (s *Context) PublishAndRestore(values map[string]interface{}) func()
  • func (c *Context) PublishWithStartEvent(value interface{}, init msg.Event) msg.Event
  • func (c *Context) Service(name string) (Service, error)
  • func (c *Context) SetListener(listener msg.Listener)
  • func (c *Context) SetLogging(flag bool)
  • func (c *Context) SetState(state data.Map)
  • func (c *Context) State() data.Map
• type Error
  • func (e *Error) Error() string
  • func (e *Error) Unshift(pathFragments ...string)
• type Informer
• type Initializer
• type Manager
  • func New() Manager
• type NopRequest
• type Route
• type Service
• type ServiceProvider
• type ServiceRegistry
  • func (r *ServiceRegistry) Register(serviceProvider ServiceProvider) error
• type ServiceResponse
• type UdfProvider
• type UseCase
• type Validator

Constants

const AppName = "endly"

AppName represents endly application name

const EndlyPanic = "ENDLY_PANIC"

EndlyPanic env key name to skip recover in case of panic, export ENDLY_PANIC=true

const Namespace = "github.com/viant/endly/"

Namespace represents endly namespace

Variables

var PredefinedUdfs = make(map[string]func(source interface{}, state data.Map) (interface{}, error))

PredefinedUdfs represents a udf registry

var Registry = &registry

Registry global service provider registry

var UdfRegistryProvider = make(map[string]func(args ...interface{}) (func(source interface{}, state data.Map) (interface{}, error), error))

UdfRegistryProvider represents udf registry provider (i.e. to register parameterized udf dynamically)

Functions

func GetVersion

func GetVersion() string

GetVersion returns endly version

func NewDefaultState

func NewDefaultState(ctx *Context) data.Map

func NewError

func NewError(service, action string, err error) error

NewError returns new workflow exception or update path

func Run

func Run(context *Context, request, result interface{}) error

Run runs action for supplied context request and response. Response has to be pointer or nil

func RunWithoutLogging

func RunWithoutLogging(context *Context, request, result interface{}) error

RunWithoutLogging runs action with logging disabled for supplied context request and response. Response has to be pointer or nil

func Services

func Services(mgr interface{}) map[string]Service

Services returns manager serviceByID or error

Types

type AbstractService

type AbstractService struct {
	Service
	*sync.RWMutex
	// contains filtered or unexported fields
}

AbstractService represenst an abstract service.

func NewAbstractService

func NewAbstractService(id string) *AbstractService

NewAbstractService creates a new abstract service.

func (*AbstractService) Actions

func (s *AbstractService) Actions() []string

Actions returns service actions

func (*AbstractService) Begin

func (s *AbstractService) Begin(context *Context, value interface{}) msg.Event

Begin add starting event

func (*AbstractService) End

func (s *AbstractService) End(context *Context) func(startEvent msg.Event, value interface{}) msg.Event

End adds finishing event.

func (*AbstractService) GetHostname

func (s *AbstractService) GetHostname(target *location.Resource) (string, int)

GetHostname return host and ssh port

func (*AbstractService) ID

func (s *AbstractService) ID() string

ID returns this service id.

func (*AbstractService) Info

func (s *AbstractService) Info() string

func (*AbstractService) Mutex

func (s *AbstractService) Mutex() *sync.RWMutex

Mutex returns a mutex.

func (*AbstractService) Register

func (s *AbstractService) Register(routes ...*Route)

Register register action routes

func (*AbstractService) Route

func (s *AbstractService) Route(action string) (*Route, error)

Route returns a service action route for supplied action

func (*AbstractService) Run

func (s *AbstractService) Run(context *Context, request interface{}) (response *ServiceResponse)

Run returns a service action for supplied action

func (*AbstractService) RunInBackground

func (s *AbstractService) RunInBackground(context *Context, handler func() error) (err error)

func (*AbstractService) Sleep

func (s *AbstractService) Sleep(context *Context, sleepTimeMs int)

Sleep sleeps for provided time in ms

func (*AbstractService) State

func (s *AbstractService) State() data.Map

State returns this service state map.

type ActionInfo

type ActionInfo struct {
	Description string
	Examples    []*UseCase
}

ActionInfo represent an action info

type Context

type Context struct {
	SessionID       string
	CLIEnabled      bool
	HasLogger       bool
	AsyncUnsafeKeys map[interface{}]bool
	Secrets         *secret.Service
	Wait            *sync.WaitGroup
	Listener        msg.Listener
	Source          *location.Resource
	Debugger        *debug.Debugger

	Logging *bool
	toolbox.Context
	// contains filtered or unexported fields
}

Context represents a workflow session context/state

func (*Context) AsRequest

func (c *Context) AsRequest(serviceName, action string, source map[string]interface{}) (request interface{}, err error)

AsRequest converts a source map into request for provided service and action.

func (*Context) Background

func (c *Context) Background() context.Context

func (*Context) Clone

func (c *Context) Clone() *Context

Clone clones the context.

func (*Context) Close

func (c *Context) Close()

Close closes this context, it executes all deferred function and set closed flag.

func (*Context) Deffer

func (c *Context) Deffer(functions ...func()) []func()

Deffer add function to be executed if context closes. If returns currently registered functions.

func (*Context) Expand

func (c *Context) Expand(text string) string

Expand substitute $ expression if present in the text and state map.

func (*Context) ExpandResource

func (c *Context) ExpandResource(resource *location.Resource) (*location.Resource, error)

ExpandResource substitutes any $ expression with the key value from the state map if it is present.

func (*Context) IsClosed

func (c *Context) IsClosed() bool

IsClosed returns true if it is closed.

func (*Context) IsLoggingEnabled

func (c *Context) IsLoggingEnabled() bool

IsLoggingEnabled returns tru if logging is enabled

func (*Context) MakeAsyncSafe

func (c *Context) MakeAsyncSafe() *msg.Events

func (*Context) Manager

func (c *Context) Manager() (Manager, error)

Manager returns workflow manager or error

func (*Context) NewRequest

func (c *Context) NewRequest(serviceName, action string, rawRequest map[string]interface{}) (result interface{}, err error)

NewRequest creates a new request for service and action

func (*Context) Publish

func (c *Context) Publish(value interface{}) msg.Event

Publish publishes event to listeners, it updates current run details like activity workflow name etc ...

func (*Context) PublishAndRestore

func (s *Context) PublishAndRestore(values map[string]interface{}) func()

PublishAndRestore sets supplied value and returns func restoring original values

func (*Context) PublishWithStartEvent

func (c *Context) PublishWithStartEvent(value interface{}, init msg.Event) msg.Event

PublishWithStartEvent publishes event to listeners, it updates current run details like activity workflow name etc ...

func (*Context) Service

func (c *Context) Service(name string) (Service, error)

Service returns a service fo provided id or error.

func (*Context) SetListener

func (c *Context) SetListener(listener msg.Listener)

SetListener sets context event Listener

func (*Context) SetLogging

func (c *Context) SetLogging(flag bool)

SetLogging set logging on and off

func (*Context) SetState

func (c *Context) SetState(state data.Map)

SetState sets a new state map

func (*Context) State

func (c *Context) State() data.Map

State returns a context state map.

type Error

type Error struct {
	Path []string
	// contains filtered or unexported fields
}

Error represents an workflow execution error

func (*Error) Error

func (e *Error) Error() string

Error returns en error

func (*Error) Unshift

func (e *Error) Unshift(pathFragments ...string)

Unshift appends supplied pathFragments at the beginning

type Informer

type Informer interface {
	Info() string
}

AbstractService represenst an abstract service.

type Initializer

type Initializer interface {
	Init() error
}

Initializer represents generic initializer

type Manager

type Manager interface {
	//Name returns an application SessionID
	Name() string

	//Version returns an application version
	Version() string

	//Service return a workflow service for provided SessionID, request,  or error
	Service(input interface{}) (Service, error)

	//Register register service in this manager
	Register(service Service)

	//NewContext returns new workflow context.
	NewContext(context toolbox.Context) *Context

	//Run run requests
	Run(context *Context, request interface{}) (interface{}, error)
}

Manager represents a endly service manager

func New

func New() Manager

New returns a new manager.

type NopRequest

type NopRequest struct {
	In interface{}
}

NopRequest represent no operation to be deprecated

type Route

type Route struct {
	Action           string
	RequestInfo      *ActionInfo
	ResponseInfo     *ActionInfo
	RequestProvider  func() interface{}
	ResponseProvider func() interface{}
	Handler          func(context *Context, request interface{}) (interface{}, error)
	OnRawRequest     func(context *Context, rawRequest map[string]interface{}) error //when specified it is called each time action literal is used when match
}

Route represents service action route

type Service

type Service interface {
	//service id
	ID() string

	//service state map
	State() data.Map

	//Run service action for supported request types.
	Run(context *Context, request interface{}) *ServiceResponse

	//Route returns service action route
	Route(action string) (*Route, error)

	Mutex() *sync.RWMutex

	Actions() []string
}

Service represents an endly service

type ServiceProvider

type ServiceProvider func() Service

ServiceProvider represents a service provider

type ServiceRegistry

type ServiceRegistry []ServiceProvider

ServiceRegistry represents a service registry

func (*ServiceRegistry) Register

func (r *ServiceRegistry) Register(serviceProvider ServiceProvider) error

Register register service provider.

type ServiceResponse

type ServiceResponse struct {
	Status   string
	Error    string
	Response interface{}
	Err      error
}

ServiceResponse service response

type UdfProvider

type UdfProvider struct {
	ID       string        `description:"id for new udf registration"`
	Provider string        `description:"provider name"`
	Params   []interface{} `description:"provider parameters"`
}

type UseCase

type UseCase struct {
	Description string
	Data        string
}

Description represents example use case

type Validator

type Validator interface {
	Validate() error
}

Validator represents generic validator