Class: Jedlik::Connection

Inherits:
Object
  • Object
show all
Defined in:
lib/jedlik/connection.rb

Overview

Establishes a connection to Amazon DynamoDB using credentials.

Constant Summary collapse

DEFAULTS = 
{
  :endpoint => 'dynamodb.us-east-1.amazonaws.com',
}

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(access_key_id, secret_access_key, opts = {}) ⇒ Connection

Acceptable ‘opts` keys are:

:endpoint # DynamoDB endpoint to use.
          # Default: 'dynamodb.us-east-1.amazonaws.com'



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# File 'lib/jedlik/connection.rb', line 18

def initialize access_key_id, secret_access_key, opts={}
  opts = DEFAULTS.merge opts
  @sts = SecurityTokenService.new access_key_id, secret_access_key
  @endpoint = opts[:endpoint]
  @debug = opts[:debug]
end

Instance Attribute Details

#sts ⇒ Object (readonly)

Returns the value of attribute sts.



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# File 'lib/jedlik/connection.rb', line 7

def sts
  @sts
end

Instance Method Details

#post(operation, data = {}) ⇒ Object

Create and send a request to DynamoDB. Returns a hash extracted from the response body.

‘operation` can be any DynamoDB operation. `data` is a hash that will be used as the request body (in JSON format). More info available at:

docs.amazonwebservices.com/amazondynamodb/latest/developerguide



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# File 'lib/jedlik/connection.rb', line 33

def post operation, data={}
  body = case data
  when String
    body = data
  else
    Yajl::Encoder.encode(data)
  end

  request = new_request operation, body
  request.sign sts
  hydra.queue request
  hydra.run
  response = request.response
  puts response.inspect if @debug

  if response.code == 200
    Yajl::Parser.parse response.body
  else
    raise_error response
  end
end