andrewlock / dotnet-config2json

A simple tool to convert a web.config file to an appsettings.json file

dotnet-config2json

A simple tool to convert a web.config file to an appsettings.json file.

Installation

The latest release of dotnet-config2json requires the 2.1.300 .NET Core SDK or newer. It also works with .NET Core 2.2. and .NET Core 3.1. Once installed, run this command:

dotnet tool install --global dotnet-config2json

Usage

Usage: dotnet config2json [arguments] [options]

Arguments:
  path          Path to the file or directory to migrate
  delimiter     The character in keys to replace with the section delimiter (:)
  prefix        If provided, an additional namespace to prefix on generated keys

Options:
  -?|-h|--help  Show help information

Performs basic migration of an xml .config file to
a JSON file. Uses the 'key' value as the key, and the
'value' as the value. Can optionally replace a given
character with the section marker (':').

dotnet-config2json's Issues

Convert Web.Config to AppSettings.json

Can I use this tool to migrate web.config to appsetting.josn for .Net 6.

Null reference issue

At first I got a helpful message about unity, but when I stripped unity out of my config I was left with a generic exception so then I stripped all sections except the microsfoft ones but still got a generic exception.

It works if I strip it down to connectionstring and appsettings. Is that expected?

$ dotnet config2json Web.config
Checking 'Web.config'...
Path 'Web.config' is a file
Migrating Web.config...
None of the parsers could parse [<unity configSource="config\Unity.config" />]!
An error occurred migrating Web.config:
System.NullReferenceException: Object reference not set to an instance of an object.
   at Microsoft.Extensions.Configuration.ConfigFile.KeyValueParser.AddToDictionary(XElement element, Stack`1 context, SortedDictionary`2 results) in C:\projects\dotnet-config2json\src\dotnet-config2json\Parser\KeyValueParser.cs:line 146
   at Microsoft.Extensions.Configuration.ConfigFile.KeyValueParser.ParseElement(XElement element, Stack`1 context, SortedDictionary`2 results) in C:\projects\dotnet-config2json\src\dotnet-config2json\Parser\KeyValueParser.cs:line 85
   at Microsoft.Extensions.Configuration.ConfigFile.KeyValueParser.ParseElement(XElement element, Stack`1 context, SortedDictionary`2 results) in C:\projects\dotnet-config2json\src\dotnet-config2json\Parser\KeyValueParser.cs:line 104
   at Microsoft.Extensions.Configuration.ConfigFile.KeyValueParser.ParseElement(XElement element, Stack`1 context, SortedDictionary`2 results) in C:\projects\dotnet-config2json\src\dotnet-config2json\Parser\KeyValueParser.cs:line 104
   at Microsoft.Extensions.Configuration.ConfigFile.ConfigFileConfigurationProvider.ParseElement(XElement element, Stack`1 context, SortedDictionary`2 results) in C:\projects\dotnet-config2json\src\dotnet-config2json\Parser\ConfigFileConfigurationProvider.cs:line 103
   at Microsoft.Extensions.Configuration.ConfigFile.ConfigFileConfigurationProvider.Load() in C:\projects\dotnet-config2json\src\dotnet-config2json\Parser\ConfigFileConfigurationProvider.cs:line 85
   at Config2Json.FileMigrator.MigrateFile(String file) in C:\projects\dotnet-config2json\src\dotnet-config2json\FileMigrator.cs:line 53
Migration complete.

jogai@myPc C:\SRC\myProj\myProj.Web\myProj.Web
$ dotnet config2json Web.config
Checking 'Web.config'...
Path 'Web.config' is a file
Migrating Web.config...
An error occurred migrating Web.config:
System.NullReferenceException: Object reference not set to an instance of an object.
   at Microsoft.Extensions.Configuration.ConfigFile.KeyValueParser.AddToDictionary(XElement element, Stack`1 context, SortedDictionary`2 results) in C:\projects\dotnet-config2json\src\dotnet-config2json\Parser\KeyValueParser.cs:line 146
   at Microsoft.Extensions.Configuration.ConfigFile.KeyValueParser.ParseElement(XElement element, Stack`1 context, SortedDictionary`2 results) in C:\projects\dotnet-config2json\src\dotnet-config2json\Parser\KeyValueParser.cs:line 85
   at Microsoft.Extensions.Configuration.ConfigFile.KeyValueParser.ParseElement(XElement element, Stack`1 context, SortedDictionary`2 results) in C:\projects\dotnet-config2json\src\dotnet-config2json\Parser\KeyValueParser.cs:line 104
   at Microsoft.Extensions.Configuration.ConfigFile.KeyValueParser.ParseElement(XElement element, Stack`1 context, SortedDictionary`2 results) in C:\projects\dotnet-config2json\src\dotnet-config2json\Parser\KeyValueParser.cs:line 104
   at Microsoft.Extensions.Configuration.ConfigFile.ConfigFileConfigurationProvider.ParseElement(XElement element, Stack`1 context, SortedDictionary`2 results) in C:\projects\dotnet-config2json\src\dotnet-config2json\Parser\ConfigFileConfigurationProvider.cs:line 103
   at Microsoft.Extensions.Configuration.ConfigFile.ConfigFileConfigurationProvider.Load() in C:\projects\dotnet-config2json\src\dotnet-config2json\Parser\ConfigFileConfigurationProvider.cs:line 85
   at Config2Json.FileMigrator.MigrateFile(String file) in C:\projects\dotnet-config2json\src\dotnet-config2json\FileMigrator.cs:line 53
Migration complete.

jogai@myPc C:\SRC\myProj\myProj.Web\myProj.Web
$ dotnet config2json Web.config
Checking 'Web.config'...
Path 'Web.config' is a file
Migrating Web.config...
An error occurred migrating Web.config:
System.NullReferenceException: Object reference not set to an instance of an object.
   at Microsoft.Extensions.Configuration.ConfigFile.KeyValueParser.AddToDictionary(XElement element, Stack`1 context, SortedDictionary`2 results) in C:\projects\dotnet-config2json\src\dotnet-config2json\Parser\KeyValueParser.cs:line 146
   at Microsoft.Extensions.Configuration.ConfigFile.KeyValueParser.ParseElement(XElement element, Stack`1 context, SortedDictionary`2 results) in C:\projects\dotnet-config2json\src\dotnet-config2json\Parser\KeyValueParser.cs:line 85
   at Microsoft.Extensions.Configuration.ConfigFile.KeyValueParser.ParseElement(XElement element, Stack`1 context, SortedDictionary`2 results) in C:\projects\dotnet-config2json\src\dotnet-config2json\Parser\KeyValueParser.cs:line 104
   at Microsoft.Extensions.Configuration.ConfigFile.KeyValueParser.ParseElement(XElement element, Stack`1 context, SortedDictionary`2 results) in C:\projects\dotnet-config2json\src\dotnet-config2json\Parser\KeyValueParser.cs:line 104
   at Microsoft.Extensions.Configuration.ConfigFile.ConfigFileConfigurationProvider.ParseElement(XElement element, Stack`1 context, SortedDictionary`2 results) in C:\projects\dotnet-config2json\src\dotnet-config2json\Parser\ConfigFileConfigurationProvider.cs:line 103
   at Microsoft.Extensions.Configuration.ConfigFile.ConfigFileConfigurationProvider.Load() in C:\projects\dotnet-config2json\src\dotnet-config2json\Parser\ConfigFileConfigurationProvider.cs:line 85
   at Config2Json.FileMigrator.MigrateFile(String file) in C:\projects\dotnet-config2json\src\dotnet-config2json\FileMigrator.cs:line 53
Migration complete.

An item with the same key already exists

I get the following error.

System.ArgumentException: An item with the same key has already been added. Key: appSettings
at System.Collections.Generic.Dictionary2.TryInsert(TKey key, TValue value, InsertionBehavior behavior) at System.Collections.Generic.Dictionary2.Add(TKey key, TValue value)
at Microsoft.Extensions.Configuration.Memory.MemoryConfigurationProvider..ctor(MemoryConfigurationSource source)
at Microsoft.Extensions.Configuration.Memory.MemoryConfigurationSource.Build(IConfigurationBuilder builder)
at Microsoft.Extensions.Configuration.ConfigurationBuilder.Build()
at Config2Json.FileMigrator.MigrateFile(String file) in C:\projects\dotnet-config2json\src\dotnet-config2json\FileMigrator.cs:line 65