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feat: added image generation support for bedrock #1384
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Pratham-Mishra04
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01-19-feat_added_image_generation_support_for_bedrock
Jan 21, 2026
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,4 +1,5 @@ | ||
| - fix: allow setting authorization header through extra headers and in allow list and deny list | ||
| - feat: added image generation support for bedrock | ||
| - feat: added support for gemini google search tool | ||
| - fix: function response part handling in gemini | ||
| - fix: call enrich error in vertex to return raw request and response in bifrost errors |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,104 @@ | ||
| package bedrock | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "strconv" | ||
| "strings" | ||
|
|
||
| "github.com/maximhq/bifrost/core/schemas" | ||
| ) | ||
|
|
||
| // ToBedrockImageGenerationRequest converts a Bifrost image generation request to a Bedrock image generation request | ||
| func ToBedrockImageGenerationRequest(request *schemas.BifrostImageGenerationRequest) (*BedrockImageGenerationRequest, error) { | ||
| if request == nil { | ||
| return nil, fmt.Errorf("request is nil") | ||
| } | ||
|
|
||
| if request.Input == nil { | ||
| return nil, fmt.Errorf("request.Input is required") | ||
| } | ||
|
|
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| bedrockReq := &BedrockImageGenerationRequest{ | ||
| TaskType: schemas.Ptr(TaskTypeTextImage), | ||
| TextToImageParams: &BedrockTextToImageParams{ | ||
| Text: request.Input.Prompt, | ||
| }, | ||
| ImageGenerationConfig: &ImageGenerationConfig{}, | ||
| } | ||
|
|
||
| if request.Params != nil { | ||
| if request.Params.N != nil { | ||
| bedrockReq.ImageGenerationConfig.NumberOfImages = request.Params.N | ||
| } | ||
| if request.Params.NegativePrompt != nil { | ||
| bedrockReq.TextToImageParams.NegativeText = request.Params.NegativePrompt | ||
| } | ||
| if request.Params.Seed != nil { | ||
| bedrockReq.ImageGenerationConfig.Seed = request.Params.Seed | ||
| } | ||
| if request.Params.Quality != nil { | ||
| bedrockReq.ImageGenerationConfig.Quality = request.Params.Quality | ||
| } | ||
| if request.Params.Style != nil { | ||
| bedrockReq.TextToImageParams.Style = request.Params.Style | ||
| } | ||
| if request.Params.Size != nil && strings.TrimSpace(strings.ToLower(*request.Params.Size)) != "auto" { | ||
|
|
||
| size := strings.Split(strings.TrimSpace(strings.ToLower(*request.Params.Size)), "x") | ||
| if len(size) != 2 { | ||
| return nil, fmt.Errorf("invalid size format: expected 'WIDTHxHEIGHT', got %q", *request.Params.Size) | ||
| } | ||
|
|
||
| width, err := strconv.Atoi(size[0]) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("invalid width in size %q: %w", *request.Params.Size, err) | ||
| } | ||
|
|
||
| height, err := strconv.Atoi(size[1]) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("invalid height in size %q: %w", *request.Params.Size, err) | ||
| } | ||
|
|
||
| bedrockReq.ImageGenerationConfig.Width = schemas.Ptr(width) | ||
| bedrockReq.ImageGenerationConfig.Height = schemas.Ptr(height) | ||
|
Radheshg04 marked this conversation as resolved.
|
||
| } | ||
| if request.Params.ExtraParams != nil { | ||
| if cfgScale, ok := schemas.SafeExtractFloat64Pointer(request.Params.ExtraParams["cfgScale"]); ok { | ||
| bedrockReq.ImageGenerationConfig.CfgScale = cfgScale | ||
| } | ||
| } | ||
| } | ||
|
|
||
| return bedrockReq, nil | ||
|
|
||
| } | ||
|
|
||
| // ToBifrostImageGenerationResponse converts a Bedrock image generation response to a Bifrost image generation response | ||
| func ToBifrostImageGenerationResponse(response *BedrockImageGenerationResponse) *schemas.BifrostImageGenerationResponse { | ||
| if response == nil { | ||
| return nil | ||
| } | ||
|
|
||
| bifrostResponse := &schemas.BifrostImageGenerationResponse{} | ||
|
|
||
| for index, image := range response.Images { | ||
| bifrostResponse.Data = append(bifrostResponse.Data, schemas.ImageData{ | ||
| B64JSON: image, | ||
| Index: index, | ||
| }) | ||
| } | ||
|
coderabbitai[bot] marked this conversation as resolved.
|
||
|
|
||
| return bifrostResponse | ||
| } | ||
|
|
||
| // DetermineImageGenModelType determines the image generation model type from the model name | ||
| func DetermineImageGenModelType(model string) string { | ||
| if strings.Contains(model, "nova-canvas-v1:0") { | ||
| return "nova-canvas-v1:0" | ||
| } else if strings.Contains(model, "titan-image-generator-v2:0") { | ||
| return "titan-image-generator-v2:0" | ||
| } else if strings.Contains(model, "titan-image-generator-v1") { | ||
| return "titan-image-generator-v1" | ||
| } | ||
| return model | ||
| } | ||
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