Exception on image.create with b64json responseFormat

[rxlabz]

You can't actually call the image.create if you choose the b64 response :

final response = await OpenAI.instance.image.create(
    prompt: prompt,
    n: 1,
    size: OpenAIImageSize.size256,
    responseFormat: OpenAIImageResponseFormat.b64Json,
  );

When you do you get this exception

Unhandled exception:
type 'Null' is not a subtype of type 'String'
#0      new OpenAIImageData.fromMap (package:dart_openai/src/core/models/image/image/sub_models/data.dart:18:37)
#1      new OpenAIImageModel.fromMap.<anonymous closure> (package:dart_openai/src/core/models/image/image/image.dart:29:39)
#2      MappedListIterable.elementAt (dart:_internal/iterable.dart:415:31)
#3      ListIterator.moveNext (dart:_internal/iterable.dart:344:26)
#4      new _GrowableList._ofEfficientLengthIterable (dart:core-patch/growable_array.dart:189:27)
#5      new _GrowableList.of (dart:core-patch/growable_array.dart:150:28)
#6      new List.of (dart:core-patch/array_patch.dart:52:28)
#7      ListIterable.toList (dart:_internal/iterable.dart:214:7)
#8      new OpenAIImageModel.fromMap (package:dart_openai/src/core/models/image/image/image.dart:30:12)
#9      OpenAIImages.create.<anonymous closure> (package:dart_openai/src/instance/images/images.dart:72:45)
#10     OpenAINetworkingClient.post (package:dart_openai/src/core/networking/client.dart:130:23)
<asynchronous suspension>
#11     OpenAIImages.create (package:dart_openai/src/instance/images/images.dart:70:12)
<asynchronous suspension>
#12     requestImg (package:gpt_api/gpt_api.dart:45:20)
<asynchronous suspension>
#13     generateFicheImages (file:///Users/rxlabz/projects/lilu/lilu023/protos/gpt_api/bin/gpt_api.dart:108:25)
<asynchronous suspension>
#14     saveLesson (file:///Users/rxlabz/projects/lilu/lilu023/protos/gpt_api/bin/gpt_api.dart:69:5)
<asynchronous suspension>
#15     main (file:///Users/rxlabz/projects/lilu/lilu023/protos/gpt_api/bin/gpt_api.dart:36:3)
<asynchronous suspension>

It's because the OpenAIImageData constructor wait for a non nullable url, and not for the b64json data.

[anasfik]

Thank you for the notice!