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| import json | |
| from core.llm_generator.output_parser.errors import OutputParserError | |
| def parse_json_markdown(json_string: str) -> dict: | |
| # Get json from the backticks/braces | |
| json_string = json_string.strip() | |
| starts = ["```json", "```", "``", "`", "{"] | |
| ends = ["```", "``", "`", "}"] | |
| end_index = -1 | |
| for s in starts: | |
| start_index = json_string.find(s) | |
| if start_index != -1: | |
| if json_string[start_index] != "{": | |
| start_index += len(s) | |
| break | |
| if start_index != -1: | |
| for e in ends: | |
| end_index = json_string.rfind(e, start_index) | |
| if end_index != -1: | |
| if json_string[end_index] == "}": | |
| end_index += 1 | |
| break | |
| if start_index != -1 and end_index != -1 and start_index < end_index: | |
| extracted_content = json_string[start_index:end_index].strip() | |
| print("content:", extracted_content, start_index, end_index) | |
| parsed = json.loads(extracted_content) | |
| else: | |
| raise Exception("Could not find JSON block in the output.") | |
| return parsed | |
| def parse_and_check_json_markdown(text: str, expected_keys: list[str]) -> dict: | |
| try: | |
| json_obj = parse_json_markdown(text) | |
| except json.JSONDecodeError as e: | |
| raise OutputParserError(f"Got invalid JSON object. Error: {e}") | |
| for key in expected_keys: | |
| if key not in json_obj: | |
| raise OutputParserError( | |
| f"Got invalid return object. Expected key `{key}` to be present, but got {json_obj}" | |
| ) | |
| return json_obj | |