Refactor from monolithic proxy to multi-backend architecture (Backend interface: OpenCode Zen + Kilo gateway). - Add auto rate-limit jailing: models returning HTTP 429 are hidden from /v1/models immediately and re-probed every 30 min - Backend interface supports model aliases, custom headers, and per-backend routing - Full Anthropic Messages API support with OpenAI format conversion - 9 free models across two backends with Claude name aliases
28 lines
1.1 KiB
Go
28 lines
1.1 KiB
Go
package proxy
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// Backend represents one upstream free-model provider (opencode zen, kilo, mimo, ...).
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//
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// Each backend knows its own model catalogue, how to resolve a requested model
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// name to the upstream ID, and the URL + headers required to forward a chat
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// completion request to it. The Proxy holds an ordered list of backends and
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// routes each request to the first one that recognises the model.
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type Backend interface {
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// Name is a short stable identifier ("opencode", "kilo").
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Name() string
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// Models returns the free models this backend exposes, for /v1/models listing.
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Models() []ModelInfo
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// Resolve maps a client-requested model name to the upstream model ID.
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// Returns ok=false when this backend does not recognise the model, so the
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// router can try the next backend (or fall back to pass-through).
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Resolve(model string) (resolved string, ok bool)
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// ChatURL is the full upstream chat completions URL.
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ChatURL() string
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// Headers returns the headers required to authenticate/identify the
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// request to the upstream (auth, client-id, request/session tracking, etc.).
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Headers(requestID, sessionID string) map[string]string
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}
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