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mojito-dimensions-base

v0.0.11

Published

Mojito bucket testing infrastructure Super Bundle Addon

Downloads

7

Readme

mojito-dimensions-base

Build Status

Build Status

NPM

Usage

A-B (a.k.a. bucket) testing infrastructure for mojito applications.

The Super Bundle RS Addon is a mojito resource store addon to discover, load and auto-configure resources from experiments super-bundle packages.

Super Bundles

Experiments super-bundle packages are special types of mojito bundles, which contain multiple versions of mojits that can be chosen at runtime through the dimension values using mojito selectors infrastructure.

Contexts and dimensions

At runtime, dimensions and values to select resources must be set in the AC context. The dimension name must be in the format: experiment_<name>

File Structure

Consider the base application my-mojito-app which contains Mojit1.

We create an experiment super-bundle package mojito-dimensions-experiment_foo, which contains multiple versions of Mojit1 based on the value of the dimension the package represents.

Consider for the pupose of the example a layer named foo, whose values can be EXP001, EXP002, EXP003.

By convention, the name of the package must include the name of the dimension it uses, with the following format: mojito-dimensions-<dimension> where dimension is like experiment_<layer>.

We create an experiment package named mojito-dimensions-experiment_foo, that will be an npm dependency of the base application.

This package must be of type super-bundle, and must declare mojito-dimensions-base as a dependency:

{
    "name": "mojito-dimensions-experiment_foo",
    "version": "0.0.1",
    "yahoo": {
        "mojito": {
            "type": "super-bundle"
        }
    },
    "dependencies": {
        "mojito-dimensions-base": "0.0.x"
    },
}

Super bundles are composed of a set of subdirectories, one per experiment dimension value, which contain partial mojito applications, meaning, one or more mojits and/or mojito resources, such as assets, binders, controllers, etc. Each dimension subdirectory must contain an application.yaml file to configure the selector that will be used to chose the right resources at runtime.

my-mojito-app
|-- ...
|-- mojits
|   |-- ...
|   `-- Mojit1/
|-- node_modules
|   |-- ...
|   `-- mojito-dimensions-experiment_foo
|       |-- EXP001
|       |   |-- mojits/
|       |   |   `-- Mojit1/
|       |   |      `-- controller.server.js
|       |   |-- ...
|       |     |-- application.yaml
|       |     `-- [package.json]
|       |
|       |-- EXP002
|       |   |-- mojits/
|       |   |   `-- Mojit1/
|       |   |      `-- assets/
|       |   |         `-- index.css
|       |   |-- ...
|       |     `-- application.yaml
|       |
|       |-- EXP003
|       |   |-- mojits/
|       |   |   `-- Mojit1/
|       |   |      `-- binders/
|       |   |         `-- index.client.js
|       |   |-- ...
|       |     `-- application.yaml
|       |
|       |
|       |-- node_modules
|       |   `-- mojito-dimensions-base
|       |       |-- addons
|       |       |   `-- rs
|       |       |       `-- super-bundle.server.js
|       `-- package.json
|-- ...
|-- application.yaml
`-- package.json

Configuration

Each experiment must configure the value of their dimension in the application.yaml file.

[
    {
        "settings": [
            "experiment_foo:EXP002"
        ],
        "selector": "EXP002"
    },
    {
        "settings": [
            "experiment_foo:EXP002",
            "device:iphone"
        ],
        "selector": "EXP002_iphone"
    }
]

In the example above, whenever the request context contains the dimension/value pair experiment_foo: "EXP001", it will result in mojito loading resources included in the EXP001 experiment dir, using the selector with the same name.

Note that context dimensions combinations are also possible, like the device:iphone config above.

Similarly, any application config can be overriden for the specific experiment settings:

[{
    "settings": ["experiment_example:CONFIG"],
    "selector": "CONFIG",

    "specs": {
        "someMojit": {
            "config": {
                "someConfig": {

                    "pagination": {
                        "config": {
                            "Pages": 5
                        }
                    }
                }
            }
        }
    }
},{
    "settings": [ "experiment_example:CONFIG", "device:phone" ],
    "selector": "CONFIG_phone",

    "specs": {
        "someMojit": {
            "config": {
                "someConfig": {

                    "pagination": {
                        "config": {
                            "Pages": 3
                        }
                    }
                }
            }
        }
    }
}]

Dimensions Auto-Configuration

There is no need to previously declare or hardcode all the possible experiment dimension names and values in dimensions.json. The super bundle addon automatically adds the dimensions names and values to the configuration at startup time while it discovers and loads super-bundle type packages.

Creating Experiments Packages

See: mojito-cli-dimension