OpenApiJsonWriter: Invalid DateTime serialization #291
Description
Expected Behavior
When using OpenApiJsonWriter valid JSON-string is written to TextWriter.
Actual Behavior
Writing OpenApiDocument with DateTime values (e.g example in parameters) results in invalid JSON-string with DateTime values not enclosed in quotes.
Example:
Code:
private static string ConvertToJson(string yaml)
{
var reader = new OpenApiStringReader();
var oas = reader.Read(yaml, out _);
var stringWriter = new StringWriter();
var openApiWriter = new MyOpenApiJsonWriter(stringWriter);
oas.SerializeAsV3(openApiWriter);
return stringWriter.ToString();
}Input:
openapi: 3.0.0
info:
version: 0.0.0
title: Test
paths:
/:
get:
parameters:
- in: query
name: q
schema:
type: string
example: '1970-01-01T00:00:00Z'
responses:
'200':
description: _Output:
{
"openapi": "3.0.1",
"info": {
"title": "Test",
"version": "0.0.0"
},
"paths": {
"/": {
"get": {
"parameters": [
{
"name": "q",
"in": "query",
"schema": {
"type": "string"
},
"example": 1970-01-01T00:00:00.0000000+00:00
}
],
"responses": {
"200": {
"description": "_"
}
}
}
}
}
}Note example property.
Additional Information
I suspect the reason for this behavior is OpenApiWriterBase which writes DateTimeOffset values directly to TextWriter insted of WriteValue(string).
As a workaround for now I use
class MyOpenApiJsonWriter : OpenApiJsonWriter
{
public MyOpenApiJsonWriter(TextWriter textWriter): base(textWriter)
{
}
public override void WriteValue(DateTimeOffset value)
{
WriteValue(value.ToString("o"));
}
}Metadata
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