Class: JsonRpc

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

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(uri) ⇒ JsonRpc

Returns a new instance of JsonRpc.



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# File 'lib/jsonrpc/jsonrpc.rb', line 21

def initialize( uri )
  @uri        = uri    ## assume uri always as string for now
  @request_id = 1
end

Class Method Details

.debug(value) ⇒ Object 



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# File 'lib/jsonrpc/jsonrpc.rb', line 14

def self.debug( value ) @debug = value; end

.debug? ⇒ Boolean

add a global debug switch - why? why not?

Returns:

  • (Boolean) 


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# File 'lib/jsonrpc/jsonrpc.rb', line 13

def self.debug?()  (@debug || false) == true; end

Instance Method Details

#debug? ⇒ Boolean

private helpers

Returns:

  • (Boolean) 


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# File 'lib/jsonrpc/jsonrpc.rb', line 17

def debug?()  self.class.debug?;  end

#request(method, params = []) ⇒ Object 



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# File 'lib/jsonrpc/jsonrpc.rb', line 27

def request( method, params=[] )

    data = { jsonrpc: '2.0',
             method:  method,
             params:  params,
             id: @request_id }

    @request_id += 1

    if debug?
      puts "json_rpc POST payload:"
      puts data.to_json
    end

    response = Webclient.post( @uri, json: data )


    if response.status.nok?
      raise "Error code #{response.status.code} on request #{@uri} #{data}"
    end

    if debug?
      puts "json_rpc response.body:"
      puts response.body
    end


    body = JSON.parse( response.body, max_nesting: 1500 )

    if body['result']
      body['result']
    elsif body['error']
      raise "Error #{@uri} #{body['error']} on request #{@uri} #{data}"
    else
      raise "No response on request #{@uri} #{data}"
    end
end