Ruby client for the Contentful Content Delivery API.

Contentful is a content management platform for web applications, mobile apps and connected devices. It allows you to create, edit & manage content in the cloud and publish it anywhere via powerful API. Contentful offers tools for managing editorial teams and enabling cooperation between organizations.

Add to your Gemfile and bundle:

gem 'contentful'

client = Contentful::Client.new(
  access_token: 'b4c0n73n7fu1',
  space: 'cfexampleapi'
)

You can query for entries, assets, etc. very similar as described in the Delivery API Documentation. Please note, that all methods of the Ruby client library are snake_cased, instead of JavaScript's camelCase:

client.content_types
client.entry 'nyancat'

You can pass the usual filter options to the query:

client.entries('sys.id[ne]' => 'nyancat') # query for all entries except 'nyancat'
client.entries(include: 1) # include one level of linked resources

The results are returned as Contentful::Resource objects. Multiple results will be returned as Contentful::Array. The properties of a resource can be accessed through Ruby methods.

content_type = client.content_type 'cat'
content_type.description # "Meow."

Alternatively, the data can be accessed as Ruby Hash with symbolized keys (and in camelCase):

content_type.properties # { name: '...', description: '...' }

System Properties behave the same and can be accessed via the #sys method.

content_type.id # => 'cat'
entry.type # => 'Entry'
asset.sys # { id: '...', type: '...' }

Entry Fields usually don't have direct method accessors, since they are based on individual content types. These fields can be accessed through the #fields method:

entry = client.entry 'nyancat'
entry.fields[:color] # rainbow

Please note, that no field type conversions will be done for entries by default.

However, you can (and should) set :dynamic_entries to :auto in your client configuration. When using this option, the client will fetch all available content types and use them to create dynamic entries on the fly.

client = Contentful::Client.new(
  access_token: 'b4c0n73n7fu1',
  space: 'cfexampleapi',
  dynamic_entries: :auto,
)
entry = client.entry 'nyancat' # => #<Contentful::DynamicEntry[cat]: ...>
entry.color # => 'rainbow'

Dynamic entries will have getter classes for the fields and do type conversions properly.

The :auto mode will fetch all content types on initialization. If you want to do it by hand later, you will need to set the option to :manual and call client.update_dynamic_entry_cache! to initialize all dynamic entries.

Contentful::Array has an #each method that delegates to its items. It also includes Ruby's Enumerable module, providing methods like #min or #first. See the Ruby core documentation for further details.

Arrays also have a #next_page URL, which will rerun the request with a increased skip parameter, as described in the documentation.

You can easily request a resource that is represented by a link by calling #resolve:

happycat = client.entry 'happycat'
happycat.fields[:image]
# => #<Contentful::Link: @sys={:type=>"Link", :linkType=>"Asset", :id=>"happycat"}>
happycat.fields[:image].resolve # => #<Contentful::Asset: @fields={ ...

There is a helpful method to add image resize options for an asset image:

client.asset('happycat').image_url
# => "//images.contentful.com/cfexampleapi/3MZPnjZTIskAIIkuuosCss/
#     382a48dfa2cb16c47aa2c72f7b23bf09/happycatw.jpg"

client.asset('happycat').image_url width: 300, height: 200, format: 'jpg', quality: 100
# => "//images.contentful.com/cfexampleapi/3MZPnjZTIskAIIkuuosCss/
#     382a48dfa2cb16c47aa2c72f7b23bf09/happycatw.jpg?w=300&h=200&fm=jpg&q=100"

Resources, that have been requested directly (i.e. no child resources), can be fetched from the server again by calling #reload:

entries = client.entries
entries.reload # Fetches the array of entries again

While for known field types, the field data is accessible using methods or the #fields hash with symbol keys, it behaves differently for nested data of the type "Object". The client will treat them as arbitrary hashes and will not parse the data inside, which also means, this data is indexed by Ruby strings, not symbols.

Required option. The name of the space you want to access.

Required option. The space's secret token.

Whether to use https. Defaults to true.

How to authenticate with the API. Supports :header (default) or :query_string.

If set to true (default), error responses will be raised. If set to false, the error objects will simply be returned.

:auto or :manual. See resource description above for details on usage.

Defaults to false. If enabled, the API responses will not be parsed to resource objects. Might be useful for debugging.

See next paragraph for explanation

You can define your own classes that will be returned instead of the predefined ones. Consider, you want to build a better Asset class. One way to do this is:

class MyBetterAsset < Contentful::Asset
  def https_image_url
    image_url.sub %r<\A//>, 'https://'
  end
end

You can register your custom class on client initialization:

client = Contentful::Client.new(
  space: 'cfexampleapi',
  access_token: 'b4c0n73n7fu1',
  resource_mapping: {
    'Asset' => MyBetterAsset
  }
)

More information on :resource_mapping can be found in examples/resource_mapping.rb and more on custom classes in examples/custom_classes.rb

You can also register custom entry classes to be used based on the entry's content_type using the :entry_mapping configuration:

class Cat < Contentful::Entry
  # define methods based on :fields, etc
end

client = Contentful::Client.new(
  space: 'cfexampleapi',
  access_token: 'b4c0n73n7fu1',
  entry_mapping: {
    'cat' => Cat
  }
)

client.entry('nyancat') # is instance of Cat

The client also includes a wrapper for the synchronization endpoint. You can initialize it with the options described in the Delivery API Documentation or an URL you received from a previous sync:

client = Contentful::Client.new(
  access_token: 'b4c0n73n7fu1',
  space: 'cfexampleapi',
  default_locale: 'en-US'
)
sync = client.sync(initial: true, type: 'Deletion') # Only returns deleted entries and assets
sync = client.sync("https://cdn.contentful.com/spaces/cfexampleapi/sync?sync_token=w5ZGw6JFwqZmVcKsE8Kow4gr...sGPg") # Continues a sync

You can access the results either wrapped in Contentful::SyncPage objects:

sync.each_page do |page|
  # Find resources at: page.items
end

# More explicit version:
page = sync.first_page
until sync.completed?
  page = s.next_page
end

Or directly iterative over all resources:

sync.each_item do |resource|
  # ...
end

When a sync is completed, the next sync url can be read from the Sync or SyncPage object:

sync.next_sync_url

Please note that synchronization entries come in all locales, so make sure, you supply a :default_locale property to the client configuration, when using the sync feature. This locale will be returned by default, when you call Entry#fields. The other localized data will also be saved and can be accessed by calling the fields method with a locale parameter:

first_entry = client.sync(initial: true, type: 'Entry').first_page.items.first
first_entry.fields('de-DE') # Returns German localizations

Copyright (c) 2014 Contentful GmbH - Jan Lelis. See LICENSE.txt for further details.