The process is called by an HTTP request using the following input parameters configured on the

Input Fields

tab of the

Start

Step:

User_Prompt
Path_To_File_With_History
User_ID

The User_ID is used as the file name.

After configuring the prompt instructions, the process reads the file. If no file exists or the file is empty, the process prepares a request without history, and then creates or updates the file. It writes the last question and its LLM response in the following format:

Question_to_LLM: user question 
LLM_Answer: Amazon Bedrock answer

If the file contains history, the process uses only the last question and response. The process then updates the file and appends the new question and answer. You can include additional parsing in a specific location and also include new changes to the request.