aws lambda ruby

Learn how to create AWS LAMBDA functions This execute on a scheduled interval and much like a cron job would. In this lesson we'll create a LAMBDA function that checks for a string of text on a website to verify the website are up and operational. The lambda function logs to CloudWatch Metrics and sends a notification

the Amazon Web services access key. You can obtain the access key from the Web Services Account Information Page. (Http://aws-portal.amazon.com/gp/aws/developer/account/index.html? Ie = utf8 Action = Account-links) Config. yml access_key_id: xxxsecret_access_key: yyy * Get a message Sqs_poll.rb #!/usr/bin/env ruby require 'yaml'require '

The differences among block, proc, and lambda in Ruby are summarized. In the rule engine, Ruby closures are frequently used, and there are several forms of usage such as block, Proc, and lambda, which is confusing. To gain a deeper understanding of the code, I once again carefully studied the

support breaky usage; Lambda is the encapsulation of Proc. Return in Lambda is equivalent to next; Blockblock is not an object and is a language feature of Ruby. It is similar to closure ). Example: Def methRes = yield"Block called returns # {res }"EndPuts meth do next "next_value" end # block called returns next_value Puts meth do break "break_value" end # bre

In the rule engine, Ruby's closures are particularly frequent, and there are several forms of usage, such as block,proc and lambda, that are confusing. In order to get a deeper understanding of the code, and again carefully learn Ruby's closure, especially Block,proc and lambda several uses of similarities and differences, this week's diary and you share the experience. Closures are one of the special adva

achieving perfect code reuse. Finally, let's look at lambda. Lambda is the name of an expression. In ruby, you can use a lambda expression to create a Proc object. Let's first look at the example:Copy codeThe Code is as follows:# File block with Proc created with lambda New

Ruby's block is one of its key features, using blocks to write concise and highly reusable algorithms. Even if it had no other use, it would at least weaken the people's attitude towards the cycle of awe. This concept is also known in other languages and theories: Lambda functions anonymous functions Closures (see the name used by the lambda function in Java 7) This is a very confusing term, because the

achieving perfect code reuse. Finally, let's look at the lambda. A lambda is the name of an expression that can be created in Ruby by a lambda expression proc object. Let's look at the examples first: Copy Code code as follows: #file block and Proc created with la