| import gradio as gr | |
| from rag import RAG, ServiceContextModule | |
| from llama_index.core import set_global_service_context | |
| import json | |
| from prompts import general_prompt | |
| from gradio_pdf import PDF | |
| import requests | |
| import os | |
| service_context_module = None | |
| current_model = None | |
| def initialize(api_key, model_name): | |
| global service_context_module, current_model | |
| gr.Info("Initializing app") | |
| url = "https://api.groq.com/openai/v1/models" | |
| headers = { | |
| "Authorization": f"Bearer {api_key}", | |
| "Content-Type": "application/json", | |
| } | |
| try: | |
| response = requests.get(url, headers=headers) | |
| data = response.json() | |
| models = [model["id"] for model in data["data"]] | |
| except Exception: | |
| gr.Error("Invalid API KEY") | |
| return gr.update(choices=[]) | |
| if not service_context_module or current_model != model_name: | |
| service_context_module = ServiceContextModule(api_key, model_name) | |
| current_model = model_name | |
| gr.Info("App started") | |
| set_global_service_context( | |
| service_context=service_context_module.service_context | |
| ) | |
| else: | |
| gr.Info("App is already running") | |
| return gr.update(choices=models) | |
| def process_document(file, query): | |
| if file.endswith(".pdf"): | |
| return process_pdf(file, query=query) | |
| else: | |
| return "Unsupported file format" | |
| def postprocess_json_string(json_string: str) -> dict: | |
| json_string = json_string.replace("'", '"') | |
| json_string = json_string[json_string.rfind("{") : json_string.rfind("}") + 1] | |
| try: | |
| json_data = json.loads(json_string) | |
| except Exception as e: | |
| print("Error parsing output, invalid json format", e) | |
| return json_data | |
| def process_pdf(file, query): | |
| rag_module = RAG(filepaths=[file]) | |
| fields = [field for field in query.split(",")] | |
| formatted_prompt = general_prompt(fields=fields) | |
| response = rag_module.run_query_engine(prompt=formatted_prompt) | |
| extracted_json = postprocess_json_string(json_string=response) | |
| return extracted_json | |
| with gr.Blocks(title="Document Information Extractor.") as app: | |
| gr.Markdown( | |
| value=""" | |
| # Welcome to Document Information Extractor. | |
| Created by [@rajsinghparihar](https://huggingface.co/rajsinghparihar) for extracting useful information from pdf documents like invoices, salary slips, etc. | |
| ## Usage: | |
| - In the Init Section, Enter your `GROQ_API_KEY` in the corresponding labeled textbox. | |
| - choose the model from the list of available models. | |
| - click `Initialize` to start the app. | |
| - In the app section, you can upload a document (pdf files: currently works for readable pdfs only, will add ocr functionality later) | |
| - Enter the entities you wanna extract as a comma seperated string. (check the examples for more info) | |
| - Click Submit to see the extracted entities as a JSON object. | |
| """ | |
| ) | |
| with gr.Tab(label="Init Section") as init_tab: | |
| with gr.Row(): | |
| api_key = gr.Text( | |
| label="Enter your Groq API KEY", | |
| type="password", | |
| ) | |
| if api_key == "" or not api_key: | |
| api_key = os.getenv("GROQ_API_KEY") | |
| available_models = gr.Dropdown( | |
| value="llama3-70b-8192", | |
| label="Choose your LLM", | |
| choices=[ | |
| "gemma-7b-it", | |
| "llama3-70b-8192", | |
| "llama3-8b-8192", | |
| "mixtral-8x7b-32768", | |
| "whisper-large-v3", | |
| ], | |
| ) | |
| init_btn = gr.Button(value="Initialize") | |
| init_btn.click( | |
| fn=initialize, | |
| inputs=[api_key, available_models], | |
| outputs=available_models, | |
| ) | |
| with gr.Tab(label="App Section") as app_tab: | |
| iface = gr.Interface( | |
| fn=process_document, | |
| inputs=[ | |
| PDF(label="Document"), | |
| gr.Text( | |
| label="Entities you wanna extract in comma separated string format" | |
| ), | |
| ], | |
| outputs=gr.JSON(label="Extracted Entities"), | |
| description="Upload a PDF document and extract specified entities from it.", | |
| examples=[ | |
| [ | |
| "examples/Commerce Bank Statement Sample.pdf", | |
| "Customer Name, Account Number, Statement Date, Ending Balance, Total Deposits, Checks Paid", | |
| ], | |
| [ | |
| "examples/Salary-Slip-pdf.pdf", | |
| "Employee Name, Bank Name, Location, Total Salary, Total Deductions", | |
| ], | |
| ], | |
| ) | |
| gr.Markdown(""" | |
| ## Pros of LLMs as information extractors over current extraction solutions: | |
| - LLMs are able to understand the scope of the problem from the context and are more robust to typos or extraction failure | |
| ## Cons | |
| - Higher Inference Cost | |
| - Can't use free APIs for Sensitive documents. | |
| """) | |
| app.launch(server_name="0.0.0.0", server_port=7860) | |