Added extra env variable to control DALLE additional parameters using…

… a JSON. If not defined, in the API call, API will use default values for this {"size": "1024x1024", "quality": "standard", "style": "vivid"}

README.md

@@ -68,6 +68,7 @@ The following variables cluster all deployments into the groups of deployments w
 |---|---|---|
 |DALLE3_DEPLOYMENTS|``|Comma-separated list of deployments that support DALL-E 3 API. Example: `dall-e-3,dalle3,dall-e`|
 |DALLE3_AZURE_API_VERSION|2024-02-01|The version API for requests to Azure DALL-E-3 API|
+|DALLE_EXTRA_PARAMETERS|`{}`|JSON formated list of extra parameters, example: '{"size": "1024x1024", "quality": "hd", "style": "vivid"}'|
 |GPT4_VISION_DEPLOYMENTS|``|Comma-separated list of deployments that support GPT-4V API. Example: `gpt-4-vision-preview,gpt-4-vision`|
 |GPT4_VISION_MAX_TOKENS|1024|Default value of `max_tokens` parameter for GPT-4V when it wasn't provided in the request|
 |MISTRAL_DEPLOYMENTS|``|Comma-separated list of deployments that support Mistral Large Azure API. Example: `mistral-large-azure,mistral-large`|

aidial_adapter_openai/dalle3.py

@@ -1,3 +1,5 @@
+import json
+import os
 from typing import Any, AsyncIterator, Optional
 
 import aiohttp
@@ -19,10 +21,24 @@
 async def generate_image(
     api_url: str, creds: OpenAICreds, user_prompt: str
 ) -> JSONResponse | Any:
+
+    extra_params = {}
+    try:
+        extra_params = json.loads(os.getenv("DALLE_EXTRA_PARAMETERS", "{}"))
+    except json.JSONDecodeError:
+        # Log or handle the case where the environment variable is not valid JSON
+        extra_params = {}
+
+    payload = {
+        "prompt": user_prompt,
+        "response_format": "b64_json",
+        **extra_params,  # Add extra parameters
+    }
+
     async with aiohttp.ClientSession() as session:
         async with session.post(
             api_url,
-            json={"prompt": user_prompt, "response_format": "b64_json"},
+            json=payload,
             headers=get_auth_headers(creds),
         ) as response:
             status_code = response.status