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44 lines
1.6 KiB
Python
44 lines
1.6 KiB
Python
import json
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from langchain.schema import OutputParserException
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def parse_json_markdown(json_string: str) -> dict:
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# Remove the triple backticks if present
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json_string = json_string.strip()
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start_index = json_string.find("```json")
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end_index = json_string.find("```", start_index + len("```json"))
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if start_index != -1 and end_index != -1:
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extracted_content = json_string[start_index + len("```json"):end_index].strip()
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# Parse the JSON string into a Python dictionary
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parsed = json.loads(extracted_content)
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elif start_index != -1 and end_index == -1 and json_string.endswith("``"):
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end_index = json_string.find("``", start_index + len("```json"))
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extracted_content = json_string[start_index + len("```json"):end_index].strip()
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# Parse the JSON string into a Python dictionary
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parsed = json.loads(extracted_content)
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elif json_string.startswith("{"):
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# Parse the JSON string into a Python dictionary
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parsed = json.loads(json_string)
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else:
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raise Exception("Could not find JSON block in the output.")
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return parsed
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def parse_and_check_json_markdown(text: str, expected_keys: list[str]) -> dict:
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try:
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json_obj = parse_json_markdown(text)
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except json.JSONDecodeError as e:
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raise OutputParserException(f"Got invalid JSON object. Error: {e}")
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for key in expected_keys:
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if key not in json_obj:
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raise OutputParserException(
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f"Got invalid return object. Expected key `{key}` "
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f"to be present, but got {json_obj}"
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)
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return json_obj
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