Blog API example (#377)

examples/apps/blog/posts/Gemfile

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+source 'https://rubygems.org'
+
+gem 'json', '> 2'	
+gem 'sequel'
+gem 'mysql2'

examples/apps/blog/posts/create/Gemfile

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+source 'https://rubygems.org'
+
+gem 'json', '> 2'	
+gem 'sequel'
+gem 'mysql2'

examples/apps/blog/posts/create/func.rb

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+require 'json'
+require 'sequel'
+
+DB = Sequel.connect("mysql2://docker.for.mac.localhost/blog?user=#{ENV['DB_USER']}&password=#{ENV['DB_PASS']}")
+
+payload = STDIN.read
+if payload == ""
+    puts ({"error" => "Invalid input"}).to_json
+    exit 1
+end
+
+payload = JSON.parse(payload)
+
+# create a dataset from the items table
+items = DB[:posts]
+
+# populate the table
+items.insert(:title => payload['title'], :body => payload['body'])
+
+puts ({"status"=>"success", "message" => "Post inserted successfully."}).to_json

examples/apps/blog/posts/create/func.yaml

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+version: 0.0.8
+runtime: ruby
+entrypoint: ruby func.rb
+build_image: treeder/ruby-mysql
+run_image: treeder/ruby-mysql

examples/apps/blog/posts/create/test.json

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+{
+    "tests": [
+        {
+            "input": {
+                "body": {
+                    "name": "Johnny"
+                }
+            },
+            "output": {
+                "body": {
+                    "message": "Hello Johnny"
+                }
+            }
+        },
+        {
+            "input": {
+                "body": ""
+            },
+            "output": {
+                "body": {
+                    "message": "Hello World"
+                }
+            }
+        }
+    ]
+}

examples/apps/blog/posts/func.rb

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+require 'json'
+require 'sequel'
+
+DB = Sequel.connect("mysql2://docker.for.mac.localhost/blog?user=#{ENV['DB_USER']}&password=#{ENV['DB_PASS']}")
+
+items = DB[:posts]
+
+rlist = []
+items.each_with_index do |x,i|
+	STDERR.puts "item: #{x}"
+	rlist << x
+end
+r = {posts: rlist}
+puts r.to_json

examples/apps/blog/posts/func.yaml

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+version: 0.0.2
+runtime: ruby
+entrypoint: ruby func.rb
+build_image: treeder/ruby-mysql
+run_image: treeder/ruby-mysql

examples/apps/blog/posts/test.json

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+{
+    "tests": [
+        {
+            "input": {
+                "body": {
+                    "name": "Johnny"
+                }
+            },
+            "output": {
+                "body": {
+                    "message": "Hello Johnny"
+                }
+            }
+        },
+        {
+            "input": {
+                "body": ""
+            },
+            "output": {
+                "body": {
+                    "message": "Hello World"
+                }
+            }
+        }
+    ]
+}