Async but not concurrent

.editorconfig

@@ -0,0 +1,364 @@
+root = true
+
+# All files
+[*]
+indent_style = space
+
+# Xml files
+[*.xml]
+indent_size = 2
+
+# C# files
+[*.cs]
+
+#### Core EditorConfig Options ####
+
+# Indentation and spacing
+indent_size = 4
+tab_width = 4
+
+# New line preferences
+end_of_line = crlf
+insert_final_newline = false
+
+#### .NET Coding Conventions ####
+[*.{cs,vb}]
+
+# Organize usings
+dotnet_separate_import_directive_groups = true
+dotnet_sort_system_directives_first = true
+file_header_template = unset
+
+# this. and Me. preferences
+dotnet_style_qualification_for_event = false:silent
+dotnet_style_qualification_for_field = false:silent
+dotnet_style_qualification_for_method = false:silent
+dotnet_style_qualification_for_property = false:silent
+
+# Language keywords vs BCL types preferences
+dotnet_style_predefined_type_for_locals_parameters_members = true:silent
+dotnet_style_predefined_type_for_member_access = true:silent
+
+# Parentheses preferences
+dotnet_style_parentheses_in_arithmetic_binary_operators = always_for_clarity:silent
+dotnet_style_parentheses_in_other_binary_operators = always_for_clarity:silent
+dotnet_style_parentheses_in_other_operators = never_if_unnecessary:silent
+dotnet_style_parentheses_in_relational_binary_operators = always_for_clarity:silent
+
+# Modifier preferences
+dotnet_style_require_accessibility_modifiers = for_non_interface_members:silent
+
+# Expression-level preferences
+dotnet_style_coalesce_expression = true:suggestion
+dotnet_style_collection_initializer = true:suggestion
+dotnet_style_explicit_tuple_names = true:suggestion
+dotnet_style_null_propagation = true:suggestion
+dotnet_style_object_initializer = true:suggestion
+dotnet_style_operator_placement_when_wrapping = beginning_of_line
+dotnet_style_prefer_auto_properties = true:suggestion
+dotnet_style_prefer_compound_assignment = true:suggestion
+dotnet_style_prefer_conditional_expression_over_assignment = true:suggestion
+dotnet_style_prefer_conditional_expression_over_return = true:suggestion
+dotnet_style_prefer_inferred_anonymous_type_member_names = true:suggestion
+dotnet_style_prefer_inferred_tuple_names = true:suggestion
+dotnet_style_prefer_is_null_check_over_reference_equality_method = true:suggestion
+dotnet_style_prefer_simplified_boolean_expressions = true:suggestion
+dotnet_style_prefer_simplified_interpolation = true:suggestion
+
+# Field preferences
+dotnet_style_readonly_field = true:warning
+
+# Parameter preferences
+dotnet_code_quality_unused_parameters = all:suggestion
+
+# Suppression preferences
+dotnet_remove_unnecessary_suppression_exclusions = none
+
+#### C# Coding Conventions ####
+[*.cs]
+
+# var preferences
+csharp_style_var_elsewhere = false:silent
+csharp_style_var_for_built_in_types = false:silent
+csharp_style_var_when_type_is_apparent = false:silent
+
+# Expression-bodied members
+csharp_style_expression_bodied_accessors = true:silent
+csharp_style_expression_bodied_constructors = false:silent
+csharp_style_expression_bodied_indexers = true:silent
+csharp_style_expression_bodied_lambdas = true:suggestion
+csharp_style_expression_bodied_local_functions = false:silent
+csharp_style_expression_bodied_methods = false:silent
+csharp_style_expression_bodied_operators = false:silent
+csharp_style_expression_bodied_properties = true:silent
+
+# Pattern matching preferences
+csharp_style_pattern_matching_over_as_with_null_check = true:suggestion
+csharp_style_pattern_matching_over_is_with_cast_check = true:suggestion
+csharp_style_prefer_not_pattern = true:suggestion
+csharp_style_prefer_pattern_matching = true:silent
+csharp_style_prefer_switch_expression = true:suggestion
+
+# Null-checking preferences
+csharp_style_conditional_delegate_call = true:suggestion
+
+# Modifier preferences
+csharp_prefer_static_local_function = true:warning
+csharp_preferred_modifier_order = public,private,protected,internal,static,extern,new,virtual,abstract,sealed,override,readonly,unsafe,volatile,async:silent
+
+# Code-block preferences
+csharp_prefer_braces = true:silent
+csharp_prefer_simple_using_statement = true:suggestion
+
+# Expression-level preferences
+csharp_prefer_simple_default_expression = true:suggestion
+csharp_style_deconstructed_variable_declaration = true:suggestion
+csharp_style_inlined_variable_declaration = true:suggestion
+csharp_style_pattern_local_over_anonymous_function = true:suggestion
+csharp_style_prefer_index_operator = true:suggestion
+csharp_style_prefer_range_operator = true:suggestion
+csharp_style_throw_expression = true:suggestion
+csharp_style_unused_value_assignment_preference = discard_variable:suggestion
+csharp_style_unused_value_expression_statement_preference = discard_variable:silent
+
+# 'using' directive preferences
+csharp_using_directive_placement = outside_namespace:silent
+
+#### C# Formatting Rules ####
+
+# New line preferences
+csharp_new_line_before_catch = true
+csharp_new_line_before_else = true
+csharp_new_line_before_finally = true
+csharp_new_line_before_members_in_anonymous_types = true
+csharp_new_line_before_members_in_object_initializers = true
+csharp_new_line_before_open_brace = all
+csharp_new_line_between_query_expression_clauses = true
+
+# Indentation preferences
+csharp_indent_block_contents = true
+csharp_indent_braces = false
+csharp_indent_case_contents = true
+csharp_indent_case_contents_when_block = true
+csharp_indent_labels = one_less_than_current
+csharp_indent_switch_labels = true
+
+# Space preferences
+csharp_space_after_cast = false
+csharp_space_after_colon_in_inheritance_clause = true
+csharp_space_after_comma = true
+csharp_space_after_dot = false
+csharp_space_after_keywords_in_control_flow_statements = true
+csharp_space_after_semicolon_in_for_statement = true
+csharp_space_around_binary_operators = before_and_after
+csharp_space_around_declaration_statements = false
+csharp_space_before_colon_in_inheritance_clause = true
+csharp_space_before_comma = false
+csharp_space_before_dot = false
+csharp_space_before_open_square_brackets = false
+csharp_space_before_semicolon_in_for_statement = false
+csharp_space_between_empty_square_brackets = false
+csharp_space_between_method_call_empty_parameter_list_parentheses = false
+csharp_space_between_method_call_name_and_opening_parenthesis = false
+csharp_space_between_method_call_parameter_list_parentheses = false
+csharp_space_between_method_declaration_empty_parameter_list_parentheses = false
+csharp_space_between_method_declaration_name_and_open_parenthesis = false
+csharp_space_between_method_declaration_parameter_list_parentheses = false
+csharp_space_between_parentheses = false
+csharp_space_between_square_brackets = false
+
+# Wrapping preferences
+csharp_preserve_single_line_blocks = true
+csharp_preserve_single_line_statements = true
+
+#### Naming styles ####
+[*.{cs,vb}]
+
+# Naming rules
+
+dotnet_naming_rule.types_and_namespaces_should_be_pascalcase.severity = suggestion
+dotnet_naming_rule.types_and_namespaces_should_be_pascalcase.symbols = types_and_namespaces
+dotnet_naming_rule.types_and_namespaces_should_be_pascalcase.style = pascalcase
+
+dotnet_naming_rule.interfaces_should_be_ipascalcase.severity = suggestion
+dotnet_naming_rule.interfaces_should_be_ipascalcase.symbols = interfaces
+dotnet_naming_rule.interfaces_should_be_ipascalcase.style = ipascalcase
+
+dotnet_naming_rule.type_parameters_should_be_tpascalcase.severity = suggestion
+dotnet_naming_rule.type_parameters_should_be_tpascalcase.symbols = type_parameters
+dotnet_naming_rule.type_parameters_should_be_tpascalcase.style = tpascalcase
+
+dotnet_naming_rule.methods_should_be_pascalcase.severity = suggestion
+dotnet_naming_rule.methods_should_be_pascalcase.symbols = methods
+dotnet_naming_rule.methods_should_be_pascalcase.style = pascalcase
+
+dotnet_naming_rule.properties_should_be_pascalcase.severity = suggestion
+dotnet_naming_rule.properties_should_be_pascalcase.symbols = properties
+dotnet_naming_rule.properties_should_be_pascalcase.style = pascalcase
+
+dotnet_naming_rule.events_should_be_pascalcase.severity = suggestion
+dotnet_naming_rule.events_should_be_pascalcase.symbols = events
+dotnet_naming_rule.events_should_be_pascalcase.style = pascalcase
+
+dotnet_naming_rule.local_variables_should_be_camelcase.severity = suggestion
+dotnet_naming_rule.local_variables_should_be_camelcase.symbols = local_variables
+dotnet_naming_rule.local_variables_should_be_camelcase.style = camelcase
+
+dotnet_naming_rule.local_constants_should_be_camelcase.severity = suggestion
+dotnet_naming_rule.local_constants_should_be_camelcase.symbols = local_constants
+dotnet_naming_rule.local_constants_should_be_camelcase.style = camelcase
+
+dotnet_naming_rule.parameters_should_be_camelcase.severity = suggestion
+dotnet_naming_rule.parameters_should_be_camelcase.symbols = parameters
+dotnet_naming_rule.parameters_should_be_camelcase.style = camelcase
+
+dotnet_naming_rule.public_fields_should_be_pascalcase.severity = suggestion
+dotnet_naming_rule.public_fields_should_be_pascalcase.symbols = public_fields
+dotnet_naming_rule.public_fields_should_be_pascalcase.style = pascalcase
+
+dotnet_naming_rule.private_fields_should_be__camelcase.severity = suggestion
+dotnet_naming_rule.private_fields_should_be__camelcase.symbols = private_fields
+dotnet_naming_rule.private_fields_should_be__camelcase.style = _camelcase
+
+dotnet_naming_rule.private_static_fields_should_be_s_camelcase.severity = suggestion
+dotnet_naming_rule.private_static_fields_should_be_s_camelcase.symbols = private_static_fields
+dotnet_naming_rule.private_static_fields_should_be_s_camelcase.style = s_camelcase
+
+dotnet_naming_rule.public_constant_fields_should_be_pascalcase.severity = suggestion
+dotnet_naming_rule.public_constant_fields_should_be_pascalcase.symbols = public_constant_fields
+dotnet_naming_rule.public_constant_fields_should_be_pascalcase.style = pascalcase
+
+dotnet_naming_rule.private_constant_fields_should_be_pascalcase.severity = suggestion
+dotnet_naming_rule.private_constant_fields_should_be_pascalcase.symbols = private_constant_fields
+dotnet_naming_rule.private_constant_fields_should_be_pascalcase.style = pascalcase
+
+dotnet_naming_rule.public_static_readonly_fields_should_be_pascalcase.severity = suggestion
+dotnet_naming_rule.public_static_readonly_fields_should_be_pascalcase.symbols = public_static_readonly_fields
+dotnet_naming_rule.public_static_readonly_fields_should_be_pascalcase.style = pascalcase
+
+dotnet_naming_rule.private_static_readonly_fields_should_be_pascalcase.severity = suggestion
+dotnet_naming_rule.private_static_readonly_fields_should_be_pascalcase.symbols = private_static_readonly_fields
+dotnet_naming_rule.private_static_readonly_fields_should_be_pascalcase.style = pascalcase
+
+dotnet_naming_rule.enums_should_be_pascalcase.severity = suggestion
+dotnet_naming_rule.enums_should_be_pascalcase.symbols = enums
+dotnet_naming_rule.enums_should_be_pascalcase.style = pascalcase
+
+dotnet_naming_rule.local_functions_should_be_pascalcase.severity = suggestion
+dotnet_naming_rule.local_functions_should_be_pascalcase.symbols = local_functions
+dotnet_naming_rule.local_functions_should_be_pascalcase.style = pascalcase
+
+dotnet_naming_rule.non_field_members_should_be_pascalcase.severity = suggestion
+dotnet_naming_rule.non_field_members_should_be_pascalcase.symbols = non_field_members
+dotnet_naming_rule.non_field_members_should_be_pascalcase.style = pascalcase
+
+# Symbol specifications
+
+dotnet_naming_symbols.interfaces.applicable_kinds = interface
+dotnet_naming_symbols.interfaces.applicable_accessibilities = public, internal, private, protected, protected_internal, private_protected
+dotnet_naming_symbols.interfaces.required_modifiers = 
+
+dotnet_naming_symbols.enums.applicable_kinds = enum
+dotnet_naming_symbols.enums.applicable_accessibilities = public, internal, private, protected, protected_internal, private_protected
+dotnet_naming_symbols.enums.required_modifiers = 
+
+dotnet_naming_symbols.events.applicable_kinds = event
+dotnet_naming_symbols.events.applicable_accessibilities = public, internal, private, protected, protected_internal, private_protected
+dotnet_naming_symbols.events.required_modifiers = 
+
+dotnet_naming_symbols.methods.applicable_kinds = method
+dotnet_naming_symbols.methods.applicable_accessibilities = public, internal, private, protected, protected_internal, private_protected
+dotnet_naming_symbols.methods.required_modifiers = 
+
+dotnet_naming_symbols.properties.applicable_kinds = property
+dotnet_naming_symbols.properties.applicable_accessibilities = public, internal, private, protected, protected_internal, private_protected
+dotnet_naming_symbols.properties.required_modifiers = 
+
+dotnet_naming_symbols.public_fields.applicable_kinds = field
+dotnet_naming_symbols.public_fields.applicable_accessibilities = public, internal
+dotnet_naming_symbols.public_fields.required_modifiers = 
+
+dotnet_naming_symbols.private_fields.applicable_kinds = field
+dotnet_naming_symbols.private_fields.applicable_accessibilities = private, protected, protected_internal, private_protected
+dotnet_naming_symbols.private_fields.required_modifiers = 
+
+dotnet_naming_symbols.private_static_fields.applicable_kinds = field
+dotnet_naming_symbols.private_static_fields.applicable_accessibilities = private, protected, protected_internal, private_protected
+dotnet_naming_symbols.private_static_fields.required_modifiers = static
+
+dotnet_naming_symbols.types_and_namespaces.applicable_kinds = namespace, class, struct, interface, enum
+dotnet_naming_symbols.types_and_namespaces.applicable_accessibilities = public, internal, private, protected, protected_internal, private_protected
+dotnet_naming_symbols.types_and_namespaces.required_modifiers = 
+
+dotnet_naming_symbols.non_field_members.applicable_kinds = property, event, method
+dotnet_naming_symbols.non_field_members.applicable_accessibilities = public, internal, private, protected, protected_internal, private_protected
+dotnet_naming_symbols.non_field_members.required_modifiers = 
+
+dotnet_naming_symbols.type_parameters.applicable_kinds = namespace
+dotnet_naming_symbols.type_parameters.applicable_accessibilities = *
+dotnet_naming_symbols.type_parameters.required_modifiers = 
+
+dotnet_naming_symbols.private_constant_fields.applicable_kinds = field
+dotnet_naming_symbols.private_constant_fields.applicable_accessibilities = private, protected, protected_internal, private_protected
+dotnet_naming_symbols.private_constant_fields.required_modifiers = const
+
+dotnet_naming_symbols.local_variables.applicable_kinds = local
+dotnet_naming_symbols.local_variables.applicable_accessibilities = local
+dotnet_naming_symbols.local_variables.required_modifiers = 
+
+dotnet_naming_symbols.local_constants.applicable_kinds = local
+dotnet_naming_symbols.local_constants.applicable_accessibilities = local
+dotnet_naming_symbols.local_constants.required_modifiers = const
+
+dotnet_naming_symbols.parameters.applicable_kinds = parameter
+dotnet_naming_symbols.parameters.applicable_accessibilities = *
+dotnet_naming_symbols.parameters.required_modifiers = 
+
+dotnet_naming_symbols.public_constant_fields.applicable_kinds = field
+dotnet_naming_symbols.public_constant_fields.applicable_accessibilities = public, internal
+dotnet_naming_symbols.public_constant_fields.required_modifiers = const
+
+dotnet_naming_symbols.public_static_readonly_fields.applicable_kinds = field
+dotnet_naming_symbols.public_static_readonly_fields.applicable_accessibilities = public, internal
+dotnet_naming_symbols.public_static_readonly_fields.required_modifiers = readonly, static
+
+dotnet_naming_symbols.private_static_readonly_fields.applicable_kinds = field
+dotnet_naming_symbols.private_static_readonly_fields.applicable_accessibilities = private, protected, protected_internal, private_protected
+dotnet_naming_symbols.private_static_readonly_fields.required_modifiers = readonly, static
+
+dotnet_naming_symbols.local_functions.applicable_kinds = local_function
+dotnet_naming_symbols.local_functions.applicable_accessibilities = *
+dotnet_naming_symbols.local_functions.required_modifiers = 
+
+# Naming styles
+
+dotnet_naming_style.pascalcase.required_prefix = 
+dotnet_naming_style.pascalcase.required_suffix = 
+dotnet_naming_style.pascalcase.word_separator = 
+dotnet_naming_style.pascalcase.capitalization = pascal_case
+
+dotnet_naming_style.ipascalcase.required_prefix = I
+dotnet_naming_style.ipascalcase.required_suffix = 
+dotnet_naming_style.ipascalcase.word_separator = 
+dotnet_naming_style.ipascalcase.capitalization = pascal_case
+
+dotnet_naming_style.tpascalcase.required_prefix = T
+dotnet_naming_style.tpascalcase.required_suffix = 
+dotnet_naming_style.tpascalcase.word_separator = 
+dotnet_naming_style.tpascalcase.capitalization = pascal_case
+
+dotnet_naming_style._camelcase.required_prefix = _
+dotnet_naming_style._camelcase.required_suffix = 
+dotnet_naming_style._camelcase.word_separator = 
+dotnet_naming_style._camelcase.capitalization = camel_case
+
+dotnet_naming_style.camelcase.required_prefix = 
+dotnet_naming_style.camelcase.required_suffix = 
+dotnet_naming_style.camelcase.word_separator = 
+dotnet_naming_style.camelcase.capitalization = camel_case
+
+dotnet_naming_style.s_camelcase.required_prefix = s_
+dotnet_naming_style.s_camelcase.required_suffix = 
+dotnet_naming_style.s_camelcase.word_separator = 
+dotnet_naming_style.s_camelcase.capitalization = camel_case
+

.gitignore

@@ -1,79 +1,484 @@
-# ---> JetBrains
+## Ignore Visual Studio temporary files, build results, and
-# Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio, WebStorm and Rider
+## files generated by popular Visual Studio add-ons.
-# Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839
+##
+## Get latest from `dotnet new gitignore`
 
-# User-specific stuff
+# dotenv files
-.idea/**/workspace.xml
+.env
-.idea/**/tasks.xml
-.idea/**/usage.statistics.xml
-.idea/**/dictionaries
-.idea/**/shelf
 
-# AWS User-specific
+# User-specific files
-.idea/**/aws.xml
+*.rsuser
+*.suo
+*.user
+*.userosscache
+*.sln.docstates
 
-# Generated files
+# User-specific files (MonoDevelop/Xamarin Studio)
-.idea/**/contentModel.xml
+*.userprefs
 
-# Sensitive or high-churn files
+# Mono auto generated files
-.idea/**/dataSources/
+mono_crash.*
-.idea/**/dataSources.ids
-.idea/**/dataSources.local.xml
-.idea/**/sqlDataSources.xml
-.idea/**/dynamic.xml
-.idea/**/uiDesigner.xml
-.idea/**/dbnavigator.xml
 
-# Gradle
+# Build results
-.idea/**/gradle.xml
+[Dd]ebug/
-.idea/**/libraries
+[Dd]ebugPublic/
+[Rr]elease/
+[Rr]eleases/
+x64/
+x86/
+[Ww][Ii][Nn]32/
+[Aa][Rr][Mm]/
+[Aa][Rr][Mm]64/
+bld/
+[Bb]in/
+[Oo]bj/
+[Ll]og/
+[Ll]ogs/
 
-# Gradle and Maven with auto-import
+# Visual Studio 2015/2017 cache/options directory
-# When using Gradle or Maven with auto-import, you should exclude module files,
+.vs/
-# since they will be recreated, and may cause churn.  Uncomment if using
+# Uncomment if you have tasks that create the project's static files in wwwroot
-# auto-import.
+#wwwroot/
-# .idea/artifacts
-# .idea/compiler.xml
-# .idea/jarRepositories.xml
-# .idea/modules.xml
-# .idea/*.iml
-# .idea/modules
-# *.iml
-# *.ipr
 
-# CMake
+# Visual Studio 2017 auto generated files
-cmake-build-*/
+Generated\ Files/
 
-# Mongo Explorer plugin
+# MSTest test Results
-.idea/**/mongoSettings.xml
+[Tt]est[Rr]esult*/
+[Bb]uild[Ll]og.*
 
-# File-based project format
+# NUnit
-*.iws
+*.VisualState.xml
+TestResult.xml
+nunit-*.xml
 
-# IntelliJ
+# Build Results of an ATL Project
-out/
+[Dd]ebugPS/
+[Rr]eleasePS/
+dlldata.c
 
-# mpeltonen/sbt-idea plugin
+# Benchmark Results
-.idea_modules/
+BenchmarkDotNet.Artifacts/
 
-# JIRA plugin
+# .NET
-atlassian-ide-plugin.xml
+project.lock.json
+project.fragment.lock.json
+artifacts/
 
-# Cursive Clojure plugin
+# Tye
-.idea/replstate.xml
+.tye/
 
-# SonarLint plugin
+# ASP.NET Scaffolding
-.idea/sonarlint/
+ScaffoldingReadMe.txt
 
-# Crashlytics plugin (for Android Studio and IntelliJ)
+# StyleCop
-com_crashlytics_export_strings.xml
+StyleCopReport.xml
-crashlytics.properties
-crashlytics-build.properties
-fabric.properties
 
-# Editor-based Rest Client
+# Files built by Visual Studio
-.idea/httpRequests
+*_i.c
+*_p.c
+*_h.h
+*.ilk
+*.meta
+*.obj
+*.iobj
+*.pch
+*.pdb
+*.ipdb
+*.pgc
+*.pgd
+*.rsp
+*.sbr
+*.tlb
+*.tli
+*.tlh
+*.tmp
+*.tmp_proj
+*_wpftmp.csproj
+*.log
+*.tlog
+*.vspscc
+*.vssscc
+.builds
+*.pidb
+*.svclog
+*.scc
 
-# Android studio 3.1+ serialized cache file
+# Chutzpah Test files
-.idea/caches/build_file_checksums.ser
+_Chutzpah*
 
+# Visual C++ cache files
+ipch/
+*.aps
+*.ncb
+*.opendb
+*.opensdf
+*.sdf
+*.cachefile
+*.VC.db
+*.VC.VC.opendb
+
+# Visual Studio profiler
+*.psess
+*.vsp
+*.vspx
+*.sap
+
+# Visual Studio Trace Files
+*.e2e
+
+# TFS 2012 Local Workspace
+$tf/
+
+# Guidance Automation Toolkit
+*.gpState
+
+# ReSharper is a .NET coding add-in
+_ReSharper*/
+*.[Rr]e[Ss]harper
+*.DotSettings.user
+
+# TeamCity is a build add-in
+_TeamCity*
+
+# DotCover is a Code Coverage Tool
+*.dotCover
+
+# AxoCover is a Code Coverage Tool
+.axoCover/*
+!.axoCover/settings.json
+
+# Coverlet is a free, cross platform Code Coverage Tool
+coverage*.json
+coverage*.xml
+coverage*.info
+
+# Visual Studio code coverage results
+*.coverage
+*.coveragexml
+
+# NCrunch
+_NCrunch_*
+.*crunch*.local.xml
+nCrunchTemp_*
+
+# MightyMoose
+*.mm.*
+AutoTest.Net/
+
+# Web workbench (sass)
+.sass-cache/
+
+# Installshield output folder
+[Ee]xpress/
+
+# DocProject is a documentation generator add-in
+DocProject/buildhelp/
+DocProject/Help/*.HxT
+DocProject/Help/*.HxC
+DocProject/Help/*.hhc
+DocProject/Help/*.hhk
+DocProject/Help/*.hhp
+DocProject/Help/Html2
+DocProject/Help/html
+
+# Click-Once directory
+publish/
+
+# Publish Web Output
+*.[Pp]ublish.xml
+*.azurePubxml
+# Note: Comment the next line if you want to checkin your web deploy settings,
+# but database connection strings (with potential passwords) will be unencrypted
+*.pubxml
+*.publishproj
+
+# Microsoft Azure Web App publish settings. Comment the next line if you want to
+# checkin your Azure Web App publish settings, but sensitive information contained
+# in these scripts will be unencrypted
+PublishScripts/
+
+# NuGet Packages
+*.nupkg
+# NuGet Symbol Packages
+*.snupkg
+# The packages folder can be ignored because of Package Restore
+**/[Pp]ackages/*
+# except build/, which is used as an MSBuild target.
+!**/[Pp]ackages/build/
+# Uncomment if necessary however generally it will be regenerated when needed
+#!**/[Pp]ackages/repositories.config
+# NuGet v3's project.json files produces more ignorable files
+*.nuget.props
+*.nuget.targets
+
+# Microsoft Azure Build Output
+csx/
+*.build.csdef
+
+# Microsoft Azure Emulator
+ecf/
+rcf/
+
+# Windows Store app package directories and files
+AppPackages/
+BundleArtifacts/
+Package.StoreAssociation.xml
+_pkginfo.txt
+*.appx
+*.appxbundle
+*.appxupload
+
+# Visual Studio cache files
+# files ending in .cache can be ignored
+*.[Cc]ache
+# but keep track of directories ending in .cache
+!?*.[Cc]ache/
+
+# Others
+ClientBin/
+~$*
+*~
+*.dbmdl
+*.dbproj.schemaview
+*.jfm
+*.pfx
+*.publishsettings
+orleans.codegen.cs
+
+# Including strong name files can present a security risk
+# (https://github.com/github/gitignore/pull/2483#issue-259490424)
+#*.snk
+
+# Since there are multiple workflows, uncomment next line to ignore bower_components
+# (https://github.com/github/gitignore/pull/1529#issuecomment-104372622)
+#bower_components/
+
+# RIA/Silverlight projects
+Generated_Code/
+
+# Backup & report files from converting an old project file
+# to a newer Visual Studio version. Backup files are not needed,
+# because we have git ;-)
+_UpgradeReport_Files/
+Backup*/
+UpgradeLog*.XML
+UpgradeLog*.htm
+ServiceFabricBackup/
+*.rptproj.bak
+
+# SQL Server files
+*.mdf
+*.ldf
+*.ndf
+
+# Business Intelligence projects
+*.rdl.data
+*.bim.layout
+*.bim_*.settings
+*.rptproj.rsuser
+*- [Bb]ackup.rdl
+*- [Bb]ackup ([0-9]).rdl
+*- [Bb]ackup ([0-9][0-9]).rdl
+
+# Microsoft Fakes
+FakesAssemblies/
+
+# GhostDoc plugin setting file
+*.GhostDoc.xml
+
+# Node.js Tools for Visual Studio
+.ntvs_analysis.dat
+node_modules/
+
+# Visual Studio 6 build log
+*.plg
+
+# Visual Studio 6 workspace options file
+*.opt
+
+# Visual Studio 6 auto-generated workspace file (contains which files were open etc.)
+*.vbw
+
+# Visual Studio 6 auto-generated project file (contains which files were open etc.)
+*.vbp
+
+# Visual Studio 6 workspace and project file (working project files containing files to include in project)
+*.dsw
+*.dsp
+
+# Visual Studio 6 technical files
+*.ncb
+*.aps
+
+# Visual Studio LightSwitch build output
+**/*.HTMLClient/GeneratedArtifacts
+**/*.DesktopClient/GeneratedArtifacts
+**/*.DesktopClient/ModelManifest.xml
+**/*.Server/GeneratedArtifacts
+**/*.Server/ModelManifest.xml
+_Pvt_Extensions
+
+# Paket dependency manager
+.paket/paket.exe
+paket-files/
+
+# FAKE - F# Make
+.fake/
+
+# CodeRush personal settings
+.cr/personal
+
+# Python Tools for Visual Studio (PTVS)
+__pycache__/
+*.pyc
+
+# Cake - Uncomment if you are using it
+# tools/**
+# !tools/packages.config
+
+# Tabs Studio
+*.tss
+
+# Telerik's JustMock configuration file
+*.jmconfig
+
+# BizTalk build output
+*.btp.cs
+*.btm.cs
+*.odx.cs
+*.xsd.cs
+
+# OpenCover UI analysis results
+OpenCover/
+
+# Azure Stream Analytics local run output
+ASALocalRun/
+
+# MSBuild Binary and Structured Log
+*.binlog
+
+# NVidia Nsight GPU debugger configuration file
+*.nvuser
+
+# MFractors (Xamarin productivity tool) working folder
+.mfractor/
+
+# Local History for Visual Studio
+.localhistory/
+
+# Visual Studio History (VSHistory) files
+.vshistory/
+
+# BeatPulse healthcheck temp database
+healthchecksdb
+
+# Backup folder for Package Reference Convert tool in Visual Studio 2017
+MigrationBackup/
+
+# Ionide (cross platform F# VS Code tools) working folder
+.ionide/
+
+# Fody - auto-generated XML schema
+FodyWeavers.xsd
+
+# VS Code files for those working on multiple tools
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+*.code-workspace
+
+# Local History for Visual Studio Code
+.history/
+
+# Windows Installer files from build outputs
+*.cab
+*.msi
+*.msix
+*.msm
+*.msp
+
+# JetBrains Rider
+*.sln.iml
+.idea
+
+##
+## Visual studio for Mac
+##
+
+
+# globs
+Makefile.in
+*.userprefs
+*.usertasks
+config.make
+config.status
+aclocal.m4
+install-sh
+autom4te.cache/
+*.tar.gz
+tarballs/
+test-results/
+
+# Mac bundle stuff
+*.dmg
+*.app
+
+# content below from: https://github.com/github/gitignore/blob/master/Global/macOS.gitignore
+# General
+.DS_Store
+.AppleDouble
+.LSOverride
+
+# Icon must end with two \r
+Icon
+
+
+# Thumbnails
+._*
+
+# Files that might appear in the root of a volume
+.DocumentRevisions-V100
+.fseventsd
+.Spotlight-V100
+.TemporaryItems
+.Trashes
+.VolumeIcon.icns
+.com.apple.timemachine.donotpresent
+
+# Directories potentially created on remote AFP share
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk
+
+# content below from: https://github.com/github/gitignore/blob/master/Global/Windows.gitignore
+# Windows thumbnail cache files
+Thumbs.db
+ehthumbs.db
+ehthumbs_vista.db
+
+# Dump file
+*.stackdump
+
+# Folder config file
+[Dd]esktop.ini
+
+# Recycle Bin used on file shares
+$RECYCLE.BIN/
+
+# Windows Installer files
+*.cab
+*.msi
+*.msix
+*.msm
+*.msp
+
+# Windows shortcuts
+*.lnk
+
+# Vim temporary swap files
+*.swp

AsyncBreakfast.sln

@@ -0,0 +1,16 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AsyncBreakfast", "AsyncBreakfast\AsyncBreakfast.csproj", "{680D6BCB-A116-49C1-9AF5-DF9FD918E72C}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{680D6BCB-A116-49C1-9AF5-DF9FD918E72C}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{680D6BCB-A116-49C1-9AF5-DF9FD918E72C}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{680D6BCB-A116-49C1-9AF5-DF9FD918E72C}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{680D6BCB-A116-49C1-9AF5-DF9FD918E72C}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+EndGlobal

AsyncBreakfast/AsyncBreakfast.csproj

@@ -0,0 +1,10 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <OutputType>Exe</OutputType>
+        <TargetFramework>net8.0</TargetFramework>
+        <ImplicitUsings>enable</ImplicitUsings>
+        <Nullable>enable</Nullable>
+    </PropertyGroup>
+
+</Project>

AsyncBreakfast/Program.cs

@@ -0,0 +1,108 @@
+// See https://aka.ms/new-console-template for more information
+
+namespace AsyncBreakfast
+{
+    // These classes are intentionally empty for the purpose of this exercise
+    internal class Bacon
+    {
+    }
+
+    internal class Coffee
+    {
+    }
+
+    internal class Egg
+    {
+    }
+
+    internal class Juice
+    {
+    }
+
+    internal class Toast
+    {
+    }
+
+    class Program
+    {
+        static async Task Main(string[] args)
+        {
+            Coffee cup = PourCoffee();
+            Console.WriteLine("coffee is ready");
+
+            Egg eggs = await FryEggsAsync(2);
+            Console.WriteLine("eggs are ready");
+
+            Bacon bacon = await FryBaconAsync(3);
+            Console.WriteLine("bacon is ready");
+
+            Toast toast = await ToastBreadAsync(2);
+            ApplyButter(toast);
+            ApplyJam(toast);
+            Console.WriteLine("toast is ready");
+
+            Juice oj = PourOJ();
+            Console.WriteLine("oj is ready");
+            Console.WriteLine("Breakfast is ready!");
+        }
+
+        private static Juice PourOJ()
+        {
+            Console.WriteLine("Pouring orange juice");
+            return new Juice();
+        }
+
+        private static void ApplyJam(Toast toast) => Console.WriteLine("Putting jam on the toast");
+
+        private static void ApplyButter(Toast toast) => Console.WriteLine("Putting butter on toast");
+
+        private static Task<Toast> ToastBreadAsync(int slices)
+        {
+            for (int slice = 0; slice < slices; slice++)
+            {
+                Console.WriteLine("Putting a slice of bread in the toaster");
+            }
+
+            Console.WriteLine("Start toasting...");
+            Task.Delay(3000).Wait();
+            Console.WriteLine("Remove toast from toaster");
+
+            return Task.FromResult(new Toast());
+        }
+
+        private static Task<Bacon> FryBaconAsync(int slices)
+        {
+            Console.WriteLine($"Putting {slices} of bacon in the pan");
+            Console.WriteLine("Cooking first side of bacon...");
+            Task.Delay(3000).Wait();
+            for (int slice = 0; slice < slices; slice++)
+            {
+                Console.WriteLine("Flipping slice of bacon");
+            }
+
+            Console.WriteLine("Cooking second side of bacon...");
+            Task.Delay(3000).Wait();
+            Console.WriteLine("Put bacon on plate");
+
+            return Task.FromResult(new Bacon());
+        }
+
+        private static Task<Egg> FryEggsAsync(int howMany)
+        {
+            Console.WriteLine("Warming the egg pan...");
+            Task.Delay(3000).Wait();
+            Console.WriteLine($"Cracking {howMany} eggs");
+            Console.WriteLine("Cooking the eggs...");
+            Task.Delay(3000).Wait();
+            Console.WriteLine("Put eggs on plate");
+
+            return Task.FromResult(new Egg());
+        }
+
+        private static Coffee PourCoffee()
+        {
+            Console.WriteLine("Pouring coffee");
+            return new Coffee();
+        }
+    }
+}