ASP.NET Request Form key/value pairs.

Platforms Supported:All

Introduced in NLog.Web 4.7

${aspnet-request-form:items=String[]:exclude=String[]:outputFormat=Enum    :itemSeparator=Layout:valueSeparator=Layout    :valuesOnly=Boolean}

• items - Form key name(s). A list of keys can be passed as comma separated values, e.g.:Key1,Key2 (Not specified means all)

  Introduced with NLog.Web / NLog.Web.AspNetCore v5.2.2, and replaces theinclude-option.

• exclude - Form key name(s) to exclude from the output. A list of keys can be passed as comma separated values, e.g.:Key1,Key2.

• outputFormat - Renders as flat string or as JSON. Default:Flat.
  • Flat - Key-value-pair as standard string
  • JsonArray - Key-value-pair in JSON-array (Introduced with NLog 5.0, replaces now obsoleteJson)
  • JsonDictionary - Key-value-pair as JSON-dictionary. (Introduced with NLog 5.0, replaces now obsoletesingleAsArray)
• itemSeparator - Separator between items. Default:,. Only applies when OutputFormat isFlat.
• valueSeparator - Separator between value and key. Default:=. Only applies when OutputFormat isFlat.
• valuesOnly - Only render the values of the key/value pairs. Default:false.
• LowerCaseKeys - Convert Keys to lowercase. Default:false.

  Introduced in NLog.Web / NLog.Web.AspNetCore 5.1.1

Use this layout renderer to log the ASP.NET Request Form collection.

In C# code:

httpContext.Request.Form=newFormCollection(newDictionary<string,StringValues>{{"id","1"},{"name","Test Person"},{"token","86abe8fe-2237-4f87-81af-0a4e522b4140"}});

${aspnet-request-form}

Will print:

"id=1,name=Test Person,token=86abe8fe-2237-4f87-81af-0a4e522b4140"

${aspnet-request-form:OutputFormat=JSON}

Will print:

[{"id":"1"},{"name":"Test Person"},{"token":"86abe8fe-2237-4f87-81af-0a4e522b4140"}]

${aspnet-request-form:items=id,name}

Will print:

"id=1,name=Test Person"

${aspnet-request-form:Exclude=token}

Will print:

"id=1,name=Test Person"

${aspnet-request-form:ItemSeparator=${newline}}

Will print:

"id=1\r\nname=Test Person\r\ntoken=86abe8fe-2237-4f87-81af-0a4e522b4140"