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refactor: remove duplicate provider check in gemini v1beta1 route

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Simplifies routing logic by delegating all provider/mapping/proxy
decisions to FallbackHandler. Previously, the route checked for
provider/mapping availability before calling the handler, then
FallbackHandler performed the same checks again.

Changes:
- Remove model extraction and provider checking from route (lines 182-201)
- Route now only checks if request is POST with /models/ path
- FallbackHandler handles provider -> mapping -> proxy fallback
- Remove unused internal/util import

Benefits:
- Eliminates duplicate checks (addresses PR review feedback #2)
- Centralizes all provider/mapping logic in FallbackHandler
- Reduces routing code by ~20 lines
- Aligns with how other /api/provider routes work

Performance: No impact (checks still happen once in FallbackHandler)
This commit is contained in:
huynguyen03.dev
2025-12-07 10:54:58 +07:00
parent 396899a530
commit bfc738b76a
1 changed files with 6 additions and 21 deletions
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27
internal/api/modules/amp/routes.go
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@@ -9,7 +9,6 @@ import (
"github.com/gin-gonic/gin"
"github.com/router-for-me/CLIProxyAPI/v6/internal/logging"
"github.com/router-for-me/CLIProxyAPI/v6/internal/util"
"github.com/router-for-me/CLIProxyAPI/v6/sdk/api/handlers"
"github.com/router-for-me/CLIProxyAPI/v6/sdk/api/handlers/claude"
"github.com/router-for-me/CLIProxyAPI/v6/sdk/api/handlers/gemini"
@@ -175,30 +174,16 @@ func (m *AmpModule) registerManagementRoutes(engine *gin.Engine, baseHandler *ha
}, m.modelMapper)
geminiV1Beta1Handler := geminiV1Beta1Fallback.WrapHandler(geminiBridge)
// Route POST model calls through Gemini bridge when a local provider exists, otherwise proxy.
// Route POST model calls through Gemini bridge with FallbackHandler.
// FallbackHandler checks provider -> mapping -> proxy fallback automatically.
// All other methods (e.g., GET model listing) always proxy to upstream to preserve Amp CLI behavior.
ampAPI.Any("/provider/google/v1beta1/*path", func(c *gin.Context) {
if c.Request.Method == "POST" {
// Attempt to extract the model name from the AMP-style path
if path := c.Param("path"); strings.Contains(path, "/models/") {
modelPart := path[strings.Index(path, "/models/")+len("/models/"):]
if colonIdx := strings.Index(modelPart, ":"); colonIdx > 0 {
modelPart = modelPart[:colonIdx]
}
if modelPart != "" {
normalized, _ := util.NormalizeGeminiThinkingModel(modelPart)
// Only handle locally when we have a provider or a valid mapping; otherwise fall back to proxy
hasProvider := len(util.GetProviderName(normalized)) > 0
if !hasProvider && m.modelMapper != nil {
// Check if mapped model has provider (MapModel returns target only if it has providers)
hasProvider = m.modelMapper.MapModel(normalized) != ""
}
if hasProvider {
geminiV1Beta1Handler(c)
return
}
}
// POST with /models/ path -> use Gemini bridge with fallback handler
// FallbackHandler will check provider/mapping and proxy if needed
geminiV1Beta1Handler(c)
return
}
}
// Non-POST or no local provider available -> proxy upstream