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### Abstract

Whether you are using a 3rd party or custom JSON API service, integration into an existing application can be time consuming: Where do you start? How can you build an object relational model that can adapt to changes in the schema?

### Description

In this talk we’ll start with an existing JSON schema and build a Ruby adapter to provide a pure Ruby interface to: consume, modify and re-export that schema into JSON and XML.

### Notes

Following the Google Civic API, we will start with a base RubyGem. We are going to setup a fixture of the JSON schema, provided at https://developers.google.com/civic-information/docs/using_api. I’m going to walk through steps for:

* Integrating RESTful interface;
* Parsing the payload for root nodes, has many and belongs to relationships, side-loading;
* How to keep objects flexible and handle errors when there are changes to the schema;
* Integrating the authentication tokens; and,
* Developing a base adapter for other types of representations (i.e.: XML, YAML, etc…)
* Gems being used during the talk: ** Faraday ** Webmock ** MultiJson ** RSpec ** Representable

At the end of the talk, they should have a strong understanding of how to integrate new public or private APIs into their applications using a object oriented Ruby based interface.

The intended audience is Intermediate level developers who maintain applications that would be using public or private API services.

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