Class: Fauna::Client

Inherits:
Object
  • Object
show all
Defined in:
lib/fauna/client.rb

Overview

The Ruby client for FaunaDB.

All methods return a converted JSON response. This is a Hash containing Arrays, ints, floats, strings, and other Hashes. Hash keys are always Symbols.

Any Ref, SetRef, Time or Date values in it will also be parsed. (So instead of { "@ref": { "id": "123", "class": { "@ref": { "id": "frogs", "class": { "@ref": { "id": "classes" } } } } } }, you will get Fauna::Ref.new("123", Fauna::Ref.new("frogs", Fauna::Native.classes))).

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(params = {}) ⇒ Client

Create a new Client.

params

A list of parameters to configure the connection with.

:domain

The domain to send requests to.

:scheme

Scheme to use when sending requests (either http or https).

:port

Port to use when sending requests.

:secret

Credentials to use when sending requests. User and pass must be separated by a colon.

:read_timeout

Read timeout in seconds.

:connection_timeout

Open timeout in seconds.

:observer

Callback that will be passed a RequestResult after every completed request.

:adapter

Faraday adapter to use. Either can be a symbol for the adapter, or an array of arguments.



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# File 'lib/fauna/client.rb', line 42

def initialize(params = {})
  @domain = params[:domain] || 'db.fauna.com'
  @scheme = params[:scheme] || 'https'
  @port = params[:port] || (scheme == 'https' ? 443 : 80)
  @read_timeout = params[:read_timeout] || 60
  @connection_timeout = params[:connection_timeout] || 60
  @observer = params[:observer]
  @adapter = params[:adapter] || :net_http_persistent
  init_credentials(params[:secret])

  init_connection
end

Instance Attribute Details

#adapter ⇒ Object (readonly)

Faraday adapter in use.



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# File 'lib/fauna/client.rb', line 28

def adapter
  @adapter
end

#connection_timeout ⇒ Object (readonly)

Open timeout in seconds.



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# File 'lib/fauna/client.rb', line 24

def connection_timeout
  @connection_timeout
end

#credentials ⇒ Object (readonly)

An array of the user and pass used for authentication when sending requests.



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# File 'lib/fauna/client.rb', line 20

def credentials
  @credentials
end

#domain ⇒ Object (readonly)

The domain requests will be sent to.



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# File 'lib/fauna/client.rb', line 14

def domain
  @domain
end

#observer ⇒ Object (readonly)

Callback that will be passed a RequestResult after every completed request.



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# File 'lib/fauna/client.rb', line 26

def observer
  @observer
end

#port ⇒ Object (readonly)

Port used when sending requests.



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# File 'lib/fauna/client.rb', line 18

def port
  @port
end

#read_timeout ⇒ Object (readonly)

Read timeout in seconds.



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# File 'lib/fauna/client.rb', line 22

def read_timeout
  @read_timeout
end

#scheme ⇒ Object (readonly)

Scheme used when sending requests (either http or https).



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# File 'lib/fauna/client.rb', line 16

def scheme
  @scheme
end

Instance Method Details

#paginate(set, params = {}, &fauna_map) ⇒ Object

Creates a Fauna::Page for paging/iterating over a set.

set

A set query to paginate over.

params

A list of parameters to pass to paginate.

fauna_map

Optional block to wrap the generated paginate query with. The block will be run in a query context. The paginate query will be passed into the block as an argument.



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# File 'lib/fauna/client.rb', line 100

def paginate(set, params = {}, &fauna_map)
  Fauna::Page.new(self, set, params, &fauna_map)
end

#ping(params = {}) ⇒ Object

Ping FaunaDB.

Reference: FaunaDB Rest API.

:category: REST Methods



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# File 'lib/fauna/client.rb', line 110

def ping(params = {})
  execute(:get, :ping, params)
end

#query(expression = nil, &expr_block) ⇒ Object

Issues a query to FaunaDB.

Queries are built via the Query helpers. See FaunaDB Query API for information on constructing queries.

expression

A query expression

expr_block

May be provided instead of expression. Block is used to build an expression with Fauna.query.

Example using expression:

client.query(Fauna::Query.add(1, 2, Fauna::Query.subtract(3, 2)))

Example using block:

client.query { add(1, 2, subtract(3, 2)) }

Reference: Executing FaunaDB Queries

:category: Query Methods



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# File 'lib/fauna/client.rb', line 85

def query(expression = nil, &expr_block)
  if expr_block.nil?
    execute(:post, :'', nil, Fauna::Query::Expr.wrap(expression))
  else
    execute(:post, :'', nil, Fauna::Query.expr(&expr_block))
  end
end

#with_secret(secret) ⇒ Object

Create a new client from the existing config with a given secret.

:secret

Credentials to use when sending requests. User and pass must be separated by a colon.



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# File 'lib/fauna/client.rb', line 59

def with_secret(secret)
  with_dup do |client|
    client.send(:init_credentials, secret)
  end
end