create_by_text raise 500 error when create an empty dataset

[crazywoola]

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Dify version

0.15.0

Cloud or Self Hosted

Cloud, Self Hosted (Docker)

Steps to reproduce

Run

curl --location --request POST 'https://api.dify.ai/v1/datasets' \                                                                    minibanana@minibanana
--header 'Authorization: Bearer KEY' \
--header 'Content-Type: application/json' \
--data-raw '{"name": "Test Knowledge Base", "permission": "only_me"}'

Result

{"id": "c89d0a9b-82b8-4dc1-834d-3e0868750702", "name": "Test Knowledge Base", "description": "", "provider": "vendor", "permission": "only_me", "data_source_type": null, "indexing_technique": null, "app_count": 0, "document_count": 0, "word_count": 0, "created_by": "b653e75a-d227-4be7-a3b7-cae6929bc755", "created_at": 1736257682, "updated_by": "b653e75a-d227-4be7-a3b7-cae6929bc755", "updated_at": 1736257682, "embedding_model": null, "embedding_model_provider": null, "embedding_available": null, "retrieval_model_dict": {"search_method": "semantic_search", "reranking_enable": false, "reranking_mode": null, "reranking_model": {"reranking_provider_name": "", "reranking_model_name": ""}, "weights": null, "top_k": 2, "score_threshold_enabled": false, "score_threshold": null}, "tags": [], "doc_form": null, "external_knowledge_info": {"external_knowledge_id": null, "external_knowledge_api_id": null, "external_knowledge_api_name": null, "external_knowledge_api_endpoint": null}, "external_retrieval_model": {"top_k": 2, "score_threshold": 0.0, "score_threshold_enabled": null}}

Run

curl --location 'https://api.dify.ai/v1/datasets/c89d0a9b-82b8-4dc1-834d-3e0868750702/document/create_by_text' \
--header 'Content-Type: application/json' \
--header 'Authorization: Bearer dataset-b69cTwDWqNXpOr6vVvPBdggE' \
--data '{"name": "text","text": "text","indexing_technique": "high_quality","process_rule": {"mode": "automatic"}}'

Result

{
    "message": "Internal Server Error",
    "code": "unknown"
}

✔️ Expected Behavior

200

❌ Actual Behavior

If we choose the same indexing_technique while posting the data then everything should be fine.

--data-raw '{"name": "Test Knowledge Base", "permission": "only_me"}'