CJS-TASK

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Control Flow Like a Pro

Procedural. Callbacks. Promises. Generators.

No longer matters which one any library uses.

1. Create a Step to use the library.
2. Use Library.
3. Set data to the Task Instance.
4. Go to next step.

It's that simple.

Installation

npm install --save cjs-task

Create a Task Instance

var task = require('cjs-task')( callback );

• returns an object
• callback must be a function

Task Instance API

task.step( name, process )

Adds a function to be executed before triggering the task callback.

• Is a Function
• Parameters
  • name
    • is a string
    • is required
    • is a unique identifier for this step
  • process
    • is a function
    • is required
    • must call task.next() to proceed to the next step
• Notes
  • instance will not progress to the next step until task.next() is called within step callback
  • steps are executed the order they are created

task.next()

Signals the completion of a task.step process and triggers the next step, if any.

• Is a Function
• Notes
  • used to control the flow of a task
  • ideally should be used in a task.step procedure

task.start()

Begins the process of executing task steps.

• Is a Function
• Notes
  • use AFTER setting up all task steps

task.end()

Passes its arguments to task callback and executes it.

• Is a Function
• Notes
  • task.end will drop all steps and stored data after task callback is executed

task.callback( callback )

Overwrite previous task callback.

• Is a Function
• Parameters
  • callback
    • is a function
    • is required

task.set( key, value )

Put anything into task instance's key-value store.

• Is a Function
• Parameters
  • key
    • is a string
    • is required
  • value
    • any type accepted
• Notes
  • Automatically emptied task.end will drop all steps and stored data after task callback is executed

task.get( key )

Retrieve data from task instance's key-value store.

• Is a Function
• Parameters
  • key
    • is a string
    • is required

task.unset( key )

Remove data from task instance's key-value store.

• Is a Function
• Parameters
  • key
    • is a string
    • is required

task.log( entry )

Stores first argument to an array. Retrieves array is no argument is given.

• Is a Function
• Parameters
  • entry
    • all datatypes are valid

LICENSE

The MIT License (MIT)

Copyright (c) 2015 Uzo Olisemeka uzo@designbymobius.ca

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.