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chore(vertexai): add imagen developer api support #17321

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Merged
merged 1 commit into from
Apr 30, 2025
Merged

chore(vertexai): add imagen developer api support #17321

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3 changes: 1 addition & 2 deletions packages/firebase_vertexai/firebase_vertexai/example/lib/main.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -76,13 +76,12 @@ class _GenerativeAISampleState extends State<GenerativeAISample> {

ImagenModel _initializeImagenModel(FirebaseVertexAI instance) {
var generationConfig = ImagenGenerationConfig(
negativePrompt: 'frog',
numberOfImages: 1,
aspectRatio: ImagenAspectRatio.square1x1,
imageFormat: ImagenFormat.jpeg(compressionQuality: 75),
);
return instance.imagenModel(
model: 'imagen-3.0-generate-001',
model: 'imagen-3.0-generate-002',
generationConfig: generationConfig,
safetySettings: ImagenSafetySettings(
ImagenSafetyFilterLevel.blockLowAndAbove,
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31 changes: 18 additions & 13 deletions packages/firebase_vertexai/firebase_vertexai/example/lib/pages/imagen_page.dart
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Expand Up @@ -133,22 +133,27 @@ class _ImagenPageState extends State<ImagenPage> {
_loading = true;
});

var response = await widget.model.generateImages(prompt);
try {
var response = await widget.model.generateImages(prompt);

if (response.images.isNotEmpty) {
var imagenImage = response.images[0];
if (response.images.isNotEmpty) {
var imagenImage = response.images[0];

_generatedContent.add(
MessageData(
image: Image.memory(imagenImage.bytesBase64Encoded),
text: prompt,
fromUser: false,
),
);
} else {
// Handle the case where no images were generated
_showError('Error: No images were generated.');
_generatedContent.add(
MessageData(
image: Image.memory(imagenImage.bytesBase64Encoded),
text: prompt,
fromUser: false,
),
);
} else {
// Handle the case where no images were generated
_showError('Error: No images were generated.');
}
} catch (e) {
_showError(e.toString());
}

setState(() {
_loading = false;
_scrollDown();
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1 change: 1 addition & 0 deletions packages/firebase_vertexai/firebase_vertexai/lib/src/firebase_vertexai.dart
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Expand Up @@ -177,6 +177,7 @@ class FirebaseVertexAI extends FirebasePluginPlatform {
app: app,
location: location,
model: model,
useVertexBackend: _useVertexBackend,
generationConfig: generationConfig,
safetySettings: safetySettings,
appCheck: appCheck,
Expand Down
11 changes: 6 additions & 5 deletions packages/firebase_vertexai/firebase_vertexai/lib/src/imagen_model.dart
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Expand Up @@ -29,6 +29,7 @@ final class ImagenModel extends BaseApiClientModel {
{required FirebaseApp app,
required String model,
required String location,
required bool useVertexBackend,
FirebaseAppCheck? appCheck,
FirebaseAuth? auth,
ImagenGenerationConfig? generationConfig,
Expand All @@ -37,11 +38,9 @@ final class ImagenModel extends BaseApiClientModel {
_safetySettings = safetySettings,
super(
serializationStrategy: VertexSerialization(),
modelUri: _VertexUri(
model: model,
app: app,
location: location,
),
modelUri: useVertexBackend
? _VertexUri(app: app, model: model, location: location)
: _GoogleAIUri(app: app, model: model),
client: HttpApiClient(
apiKey: app.options.apiKey,
requestHeaders: BaseModel.firebaseTokens(appCheck, auth, app)));
Expand Down Expand Up @@ -118,6 +117,7 @@ ImagenModel createImagenModel({
required FirebaseApp app,
required String location,
required String model,
required bool useVertexBackend,
FirebaseAppCheck? appCheck,
FirebaseAuth? auth,
ImagenGenerationConfig? generationConfig,
Expand All @@ -129,6 +129,7 @@ ImagenModel createImagenModel({
appCheck: appCheck,
auth: auth,
location: location,
useVertexBackend: useVertexBackend,
safetySettings: safetySettings,
generationConfig: generationConfig,
);
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