Class: GraphQL::REPL

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

Defined Under Namespace

Classes: Expression, Proxy

Constant Summary collapse

IntrospectionDocument = 
GraphQL.parse(GraphQL::Introspection::INTROSPECTION_QUERY)

Instance Method Summary collapse

Constructor Details

#initialize(uri, headers = {}) ⇒ REPL

Returns a new instance of REPL.



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# File 'lib/graphql/repl.rb', line 9

def initialize(uri, headers = {})
  @uri = URI.parse(uri)
  @headers = headers

  @connection = Net::HTTP.new(@uri.host, @uri.port).tap do |client|
    client.use_ssl = @uri.scheme == "https"
  end

  @schema = GraphQL::Schema::Loader.load(request(IntrospectionDocument.to_query_string))
end

Instance Method Details

#completions(str) ⇒ Object 



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# File 'lib/graphql/repl.rb', line 46

def completions(str)
  Expression.new(@schema, str).completions
end

#eval(str) ⇒ Object 



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# File 'lib/graphql/repl.rb', line 30

def eval(str)
  expr = Expression.new(@schema, str)

  if error = expr.error_message
    return error
  end

  result = request(expr.document.to_query_string)

  if result["errors"] && result["errors"][0]
    result["errors"][0]["message"]
  else
    expr.response_path.reduce(result["data"]) { |obj, key| obj[key] }
  end
end

#request(query) ⇒ Object 



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# File 'lib/graphql/repl.rb', line 20

def request(query)
  request = Net::HTTP::Post.new(@uri.request_uri)
  request["Accept"] = "application/json"
  request["Content-Type"] = "application/json"
  @headers.each { |k, v| request[k] = v }
  request.body = JSON.generate({"query" => query})
  response = @connection.request(request)
  JSON.parse(response.body)
end