Request body validated not according to Swagger 2.0 spec.

[IvanGoncharov]

According to spec swagger inside schema object support only limited subset of JSON Schema draft4 and extend it with custom keywords.

So, you don't use "discriminator" and "readOnly" keywords during validation that mean you don't fully support Swagger 2.0 spec.

Personally, I think it's a problem in Swagger spec.
So I created OAI/OpenAPI-Specification#333 feature request to make Swagger compatible with JSON Schema.
And I want library authors took part in that discussion.

[JamesMessinger]

This is actually a bug in Swagger Parser, which Swagger Express Middleware uses to parse the swagger docs. Thanks for pointing it out. I'll look into it and get it fixed.

[IvanGoncharov]

It's totally unrelated to Swagger Parse, probably I confused you with issue description.
Following call sequence will illustrate problem:
param-parser.js:96 req.body = parseParameter(param, req.body, param.schema);
param-parser.js:147 return new JsonSchema(schema).parse(value);
json-schema.js:46 return parseObject(this.schema, value, propPath);
json-schema.js:530 jsonValidate(schema, parsedValue, propPath || '');
json-schema.js:211 if (tv4.validate(value, schema)) {

So as you can see, tv4 used to validate body parameter according to Swagger schema object.
But JSON Schema and Swagger schema object incompatible, and that is issue in nutshell.

[IvanGoncharov]

Initially I created this issue to bring attention to OAI/OpenAPI-Specification#333
So it can't be fixed without writing custom JSON schema validator which doesn't happen any time soon.