DELETE request fails with "Body cannot be empty when content-type is set to 'application/json'"

[kapetr]

Description

We are not able to run DELETE requests (or POST request with empty body), because the library always adds content-type: 'application/json' header and api doesn't consider an empty body a valid json (returns Body cannot be empty when content-type is set to 'application/json). Or is there some option in openAPI schema I'm missing to remove this? I was able to hack this by explicitly including content-type: 'text-plain' header to every DELETE request.

Example of the delete chunk in schema (simplified):

{
  "files/{id}": {
    "delete": {
      "parameters": [
        {
          "schema": {
            "type": "string"
          },
          "in": "path",
          "name": "id",
          "required": true
        }
      ],
      "responses": {
        "204": {
          "description": "Success"
        }
      }
    }
  }
}

Reproduction

Expected result

Checklist

• I’m willing to open a PR (see CONTRIBUTING.md)

[drwpow]

The error message Body cannot be empty when content-type is set to 'application/json' is unique to your endpoint, so I don’t think there’s a good default that can be changed here (for most endpoints, Content-Type: application/json helps endpoints return the correct response back as a default).

Also you can unset that default header for all endpoints with:

createClient({ headers: { 'Content-Type': null } });

But yes if you wanted to do something more complex such as send application/json for all endpoints by default, but omit that header for DELETE requests, then that’d probably have to be solved with upcoming middleware support (#1122)

[drwpow]

Closing this issue as I think between the provided workaround, and new support for middleware, there are ways to solve this! But please correct me if I’m missing anything.