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Q&A How to migrate NLog configuration from XML file(s) to application settings (JSON)?

FreeFormatter resource mentioned in the question is useful and I could use the output as a base for getting to a working configuration. All the changes were manually performed. - enable throw conf...

posted 2y ago by Alexei‭ · edited 2y ago by Alexei‭

Answer

#2: Post edited by

Alexei‭ · 2022-07-12T12:13:14Z (over 2 years ago)
clarified that the steps were manually performed

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~~FreeFormatter resource mentioned in the question is useful and I could use the output as a base for getting to a working configuration:~~
~~- enable throw configuration exceptions and allow for internal log messages to be output in a file for understanding what is wrong with the configuration~~
```json
"throwConfigExceptions": "true",
"internalLogLevel": "Debug",
"internalLogFile": "<some_path>\\internal_log.log",
```
- extensions must be simplified (example):
from
```json
"extensions": {
"add": [
{
"assembly": "NLog.Web.AspNetCore"
},
{
"assembly": "NLog.Appsettings.Standard"
}
]
},
```
to
```json
"extensions": [
{ "assembly": "NLog.Web.AspNetCore" },
{ "assembly": "NLog.Appsettings.Standard" }
],
```
- targets must be simplified:
from
```json
"target": {
"name": "foo",
}
```
to
```json
"foo": {
}
```
- rules changes:
from
```json
"rules": {
"logger": [
{
"name": "Microsoft.*",
"maxLevel": "Warn",
"writeTo": "blackhole",
"final": "true"
},
```
to
```json
"rules": [
{
"logger": "Microsoft.*",
"maxLevel": "Warn",
"writeTo": "blackhole",
"final": true
},
```
This is not an exhaustive list, but it should cover most of the aspects to consider when performing the migration.

[FreeFormatter resource mentioned in the question](https://www.freeformatter.com/xml-to-json-converter.html) is useful and I could use the output as a base for getting to a working configuration. All the changes were manually performed.
[]()- enable throw configuration exceptions and allow for internal log messages to be output in a file for understanding what is wrong with the configuration
```json
"throwConfigExceptions": "true",
"internalLogLevel": "Debug",
"internalLogFile": "<some_path>\\internal_log.log",
```
- extensions must be simplified (example):
from
```json
"extensions": {
"add": [
{
"assembly": "NLog.Web.AspNetCore"
},
{
"assembly": "NLog.Appsettings.Standard"
}
]
},
```
to
```json
"extensions": [
{ "assembly": "NLog.Web.AspNetCore" },
{ "assembly": "NLog.Appsettings.Standard" }
],
```
- targets must be simplified:
from
```json
"target": {
"name": "foo",
}
```
to
```json
"foo": {
}
```
- rules changes:
from
```json
"rules": {
"logger": [
{
"name": "Microsoft.*",
"maxLevel": "Warn",
"writeTo": "blackhole",
"final": "true"
},
```
to
```json
"rules": [
{
"logger": "Microsoft.*",
"maxLevel": "Warn",
"writeTo": "blackhole",
"final": true
},
```
This is not an exhaustive list, but it should cover most of the aspects to consider when performing the migration.

#1: Initial revision by

Alexei‭ · 2022-07-12T12:12:03Z (over 2 years ago)

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FreeFormatter resource mentioned in the question is useful and I could use the output as a base for getting to a working configuration:

- enable throw configuration exceptions and allow for internal log messages to be output in a file for understanding what is wrong with the configuration

```json
"throwConfigExceptions":  "true",
"internalLogLevel": "Debug",
"internalLogFile": "<some_path>\\internal_log.log",
```

- extensions must be simplified (example):

from 

```json
"extensions": {
  "add": [
  {
    "assembly": "NLog.Web.AspNetCore"
  },
  {
    "assembly": "NLog.Appsettings.Standard"
  }
  ]
},
```

to

```json
"extensions": [
  { "assembly": "NLog.Web.AspNetCore" },
  { "assembly": "NLog.Appsettings.Standard" }
],
```

- targets must be simplified:

from

```json
"target": {
   "name": "foo",
}
```

to

```json
"foo": {

}
```

- rules changes:

from

```json
"rules": {
  "logger": [
  {
    "name": "Microsoft.*",
    "maxLevel": "Warn",
    "writeTo": "blackhole",
    "final": "true"
   },
```

to

```json
"rules": [
  {
    "logger": "Microsoft.*",
    "maxLevel": "Warn",
    "writeTo": "blackhole",
    "final": true
  },
```

This is not an exhaustive list, but it should cover most of the aspects to consider when performing the migration.

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