Null ignoring at SelectElements from System.Text.Json at JsonDocumentPathExtensions

[Cubody]

Description

I was trying to parse json with null fields via jsonpath, but got empty array. I checked source code of library methods and didn't find there any option where I can set null handling.

Reproduction Steps

1. Use this json:

const string featuresJson =
                @"{
                  ""files"": [
                    {
                      ""id"": ""90d1aeae-481b-4c82-821b-a034f9aa77cd"",
                      ""document_type"": null
                    }
                  ]
                }";

2. Try to use json.SelectElements("$.files[*].document_type").Select(e => e.HasValue ? (object) e.Value : null);
3. It will return empty array.

Expected behavior

We have option to include nulls in filter.

Actual behavior

We can't set excepted behaviour.

Regression?

No response

Known Workarounds

No response

Configuration

No response

Other information

No response

Tagging subscribers to this area: @dotnet/area-system-text-json, @gregsdennis
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Issue Details

---

Description

I was trying to parse json with null fields via jsonpath, but got empty array. I checked source code of library methods and didn't find there any option where I can set null handling.

Reproduction Steps

1. Use this json:

const string featuresJson =
                @"{
                  ""files"": [
                    {
                      ""id"": ""90d1aeae-481b-4c82-821b-a034f9aa77cd"",
                      ""document_type"": null
                    }
                  ]
                }";

2. Try to use json.SelectElements("$.files[*].document_type").Select(e => e.HasValue ? (object) e.Value : null);
3. It will return empty array.

Expected behavior

We have option to include nulls in filter.

Actual behavior

We can't set excepted behaviour.

Regression?

No response

Known Workarounds

No response

Configuration

No response

Other information

No response

Author:	Greenorine
Assignees:	-
Labels:	area-System.Text.Json
Milestone:	-

[gregsdennis]

Related to #68128

[Cubody]

What is a possible work-around for SelectElements?

[eiriktsarpalis]

What are "SelectElements" and "JsonDocumentPathExtensions"? I don't believe System.Text.Json ships such a components.

This issue has been marked needs-author-action and may be missing some important information.

[Cubody]

Yep, my wrong. Excuse me. This is library about SelectElements: https://github.com/azambrano/JsonDocumentPath