System.Text.Json should support has buildin support read json number to string property

[John0King]

background

currently the real big problem for people to switch from Newtonsoft.json to System.Text.json is that the S.T.J to too strict on deserialzing.

the bigest problem for me is the string <===> number , currently there is a JsonNumberHandling.AllowReadingFromString option for string ==> json, but not reverse, and WriteAsString is for serializing.

why you read a json number to a string property?

the user case for this is primary for 3rd party interface or compatibility.

1. the remote 3rd party has a week languge, and use string|number for a json property
2. or a system begin as number type , and then add string type , and for compatibility, the model for receive the json change from int => 'string'

using newtonsoft.json this is very simple , because newtonsoft.json allow string to accept any type in json, but for System.Text.Json, this must change type from int => JsonNode and involve json framework type

suggestion

JsonNumberHandling.AllowReadingFromString should also allow read number to string

[gregsdennis]

Taking the opportunity to repost this: https://blog.json-everything.net/posts/numbers-are-numbers-not-strings/

Also, this is definitely a duplicate request, but I don't have the specific issue(s).

[John0King]

@gregsdennis

Also, this is definitely a duplicate request, but I don't have the specific issue(s).

all issues related to this was been closed.

and this issue is not about convert "11" => 11 , this case should use JsonNumberHandling.AllowReadingFromString

this issue is about typescript type string|number to C# string type

eg.

[
   { "a":1 },
   { "a":2},
   { "a":"ABC"}
]

[gregsdennis]

Yes I see the difference now.

[dannyd89]

You could write a JsonConverter for that and add it to the properties where this behavior should be supported?

[John0King]

You could write a JsonConverter for that and add it to the properties where this behavior should be supported?

yes, but I still think this case should has build in support in S.T.J