René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Unexported fields with anyOf in request parameters","articleBody":"This could be similar to https://github.com/oapi-codegen/oapi-codegen/issues/1367 which has an associated and merged PR, but I am seeing this.\n\nWith this spec:\n\n```\nopenapi: 3.1.0\ninfo:\n  title: Reproduction Spec\n  version: 1.0.0\npaths:\n  /test/{accept}:\n    post:\n      operationId: BugReproduction\n      parameters:\n        - name: accept\n          in: path\n          required: true\n          schema:\n            anyOf:\n              - type: boolean\n              - type: string\n      responses:\n        \"200\":\n          description: OK\n```\n\nThe generated code has:\n\n```\n// BugReproductionParamsAccept0 defines parameters for BugReproduction.\ntype BugReproductionParamsAccept0 = bool\n\n// BugReproductionParamsAccept1 defines parameters for BugReproduction.\ntype BugReproductionParamsAccept1 = string\n\n// The interface specification for the client above.\ntype ClientInterface interface {\n\t// BugReproduction performs a POST /test/{accept} (the `BugReproduction` operationId) request.\n\tBugReproduction(ctx context.Context, accept struct {\n\t\tunion json.RawMessage\n\t}, reqEditors ...RequestEditorFn) (*http.Response, error)\n}\n\n// BugReproduction performs a POST /test/{accept} (the `BugReproduction` operationId) request.\nfunc (c *Client) BugReproduction(ctx context.Context, accept struct {\n\tunion json.RawMessage\n}, reqEditors ...RequestEditorFn,\n) (*http.Response, error) {\n\treq, err := NewBugReproductionRequest(c.Server, accept)\n\tif err != nil {\n\t\treturn nil, err\n\t}\n\treq = req.WithContext(ctx)\n\tif err := c.applyEditors(ctx, req, reqEditors); err != nil {\n\t\treturn nil, err\n\t}\n\treturn c.Client.Do(req)\n}\n```\n\nTypes `BugReproductionParamsAccept0` and `BugReproductionParamsAccept1` are defined but not used. `BugReproduction` has a second argument that is an anonymous struct with an unexported field. If the generated code is in its own package, and thus being imported elsewhere which I would think is a common use case, there is no way to construct it.","author":{"url":"https://github.com/atye","@type":"Person","name":"atye"},"datePublished":"2026-09-18T19:16:59Z","url":"https://github.com/oapi-codegen/oapi-codegen/issues/2560"}