[init] Added system prompt, streamlit base, requirements

app.py

@@ -0,0 +1,64 @@
+import streamlit as st
+from langchain_openai import ChatOpenAI
+from langchain_core.prompts import ChatPromptTemplate
+from langchain.schema import StrOutputParser
+
+chat_llm = ChatOpenAI(
+    openai_api_key=st.secrets["OPENAI_API_KEY"],
+    model=st.secrets["OPENAI_MODEL"],
+)
+
+caption_examples_file_path = "./data/caption_examples.txt"
+
+prompt = ChatPromptTemplate.from_messages(
+    [
+        (
+            "system",
+            "You are a instagram post writer and you writing captions for posts for company that make hiking and bicycle backpacks. Responde with 2 sentence max, use context as example",
+        ),
+        ( "system", "{example}" ),
+        ( "human", "{question}" ),
+    ]
+)
+
+chat_chain = prompt | chat_llm | StrOutputParser()
+
+with open(caption_examples_file_path, "r") as file:
+    caption_examples = file.read()
+
+
+if "visibility" not in st.session_state:
+    st.session_state.visibility = "visible"
+    st.session_state.disabled = False
+    st.session_state.placeholder = "What Instagram post should be about?"
+
+
+st.set_page_config(
+    page_title="Backpack title generator",
+    page_icon="👋",
+)
+st.write("# Welcome to InstaGPT! 👋")
+st.markdown("""Writes caption for a desired backpacks in style of Osprey""")
+
+
+text_input = st.text_input(
+    "Enter some text 👇",
+    label_visibility=st.session_state.visibility,
+    disabled=st.session_state.disabled,
+    placeholder=st.session_state.placeholder,
+)
+generate_respose = st.button("Generate")
+if text_input:
+    st.write("You entered: ", text_input)
+
+
+if generate_respose:
+    response = chat_chain.invoke(
+        {
+            "example": caption_examples,
+            "question": text_input,
+        }
+    )
+
+    st.write("Generated: ", response)
+

reqirements.txt

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+langchain==0.2.1
+langchain-community==0.2.1
+langchain-core==0.2.1
+langchain-openai==0.1.7
+langchain-text-splitters==0.2.0
+langchainhub==0.1.16
+openai==1.30.3