.NET 8 Minimal API return JSON string as Json without first deserialize into an object

Question

If I have a string (which is already in JSON format) say

string JsonStr = "{ 'A': 123 }";

My API is

public JsonResult OnGetRetrieve()
{
    string JsonStr = "{ 'A': 123 }";
    return new JsonResult(JsonStr);  // This will return the Json as a string
}

If I wish to return as a Json object, I need to

return new JsonResult(JsonConvert.Deserialize(JsonStr));

I am sure there is a better way than this.

Thanks in advance.

Is it Minimal APIs or Controllers?

Guru Stron
– Guru Stron

2024-06-10 13:12:57 +00:00
Commented Jun 10, 2024 at 13:12 — Guru Stron
– Guru Stron, Commented Jun 10, 2024 at 13:12
@GuruStron Minimal APIs

s k
– s k

2024-06-10 21:59:04 +00:00
Commented Jun 10, 2024 at 21:59 — s k
– s k, Commented Jun 10, 2024 at 21:59
Have you checked the suggested answer does it work for you?

Guru Stron
– Guru Stron

2024-06-11 12:12:52 +00:00
Commented Jun 11, 2024 at 12:12 — Guru Stron
– Guru Stron, Commented Jun 11, 2024 at 12:12

Guru Stron · Accepted Answer · 2024-06-10 13:17:35Z

1

If you have a JSON string and you want to return it as JSON you can use Content helper methods. For example for minimal APIs with Results.Content (or TypedResults.Content):

return Results.Content(JsonStr);

or in controllers:

return this.Content(JsonStr);

Possibly you will need to specify the contentType parameter (application/json).

answered Jun 10, 2024 at 13:17

Guru Stron

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