How do I use the RetrieveAndGenerate API to reuse a knowledge base session in Amazon Bedrock?

Resolution

Note: A knowledge base session lasts for only 24 hours, and you can't extend the session. 

To reuse a knowledge base session after the 24 hours, get a session ID for the knowledge base session. Then, specify the session ID in the next API call input.

Complete the following steps:

1. Use the request syntax to call the RetrieveAndGenerate API that assigns the session ID to the current knowledge base session.

2. Get the sessionId from the API call's response syntax.
   Example output:

   {  
      "citations": [   
         {   
            "generatedResponsePart": {   
               "textResponsePart": {   
                  "span": {   
                     "end": number,  
                     "start": number  
                  },  
                  "text": "string"  
               }  
            },  
            "retrievedReferences": [   
               {   
                  "content": {   
                     "text": "string"  
                  },  
                  "location": {   
                     "s3Location": {   
                        "uri": "string"  
                     },  
                     "type": "string"  
                  },  
                  "metadata": {   
                     "string" : JSON value   
                  }  
               }  
            ]  
         }  
      ],  
      "output": {   
         "text": "string"  
      },  
      "sessionId": "string"  
   }

3. Specify the session ID in the next API call input within 24 hours to continue to use the same session.
   Note: The knowledge base remembers your previous conversation and provides the answers.

If you don't want to reuse a knowledge base session, then remove the session ID from the API call input to automatically create a new session.