Building RAG chatbot for movie recommendations with Qdrant: n8n workflow

Building RAG chatbot for movie recommendations with Qdrant

Started by someone opening a chat with it, and works across GitHub and Qdrant. It puts OpenAI behind a retrieval step, so answers are drawn from documents you supply rather than from the model alone. 25 steps: large, and worth reading before you trust it with anything live.

LargeCalls a model: OpenAIRetrieval

The flow

Starts it 3Model 8Logic 8Service 6

The steps in the order they run, from what starts it.

1When clicking ‘Test workflow’Manual triggerStarts it
2Embeddings OpenAIEmbeddings Open AiModel
3Token SplitterText Splitter Token SplitterModel
4When chat message receivedChat triggerStarts it
5OpenAI Chat ModelLm Chat Open AiModel
6Call n8n Workflow ToolTool WorkflowModel
7Window Buffer MemoryMemory Buffer WindowModel
8Execute Workflow TriggerExecute Workflow triggerStarts it
9GitHubGithubService
10Qdrant Vector StoreVector Store QdrantModel
11Default Data LoaderDocument Default Data LoaderModel
12AI AgentAgentModel
13Embedding Recommendation Request with Open AIHttp RequestService
14Embedding Anti-Recommendation Request with Open AIHttp RequestService
15Extract from FileExtract From FileService
16Extracting EmbeddingSetLogic
17Extracting Embedding1SetLogic
18MergeMergeLogic
19Calling Qdrant Recommendation APIHttp RequestService
20Retrieving Recommended Movies Meta DataHttp RequestService
21Split Out1Split OutLogic
22Split OutSplit OutLogic
23Merge1MergeLogic
24Selecting Fields Relevant for AgentSetLogic
25AggregateAggregateLogic

How it's built

Starts on: Someone opening a chat with it
Steps: 25
Size: Large: read it before trusting it with anything live
Connects to: GitHub, Qdrant
Model: OpenAI
Retrieval: Answers are drawn from documents you supply, not from the model alone

Questions

What does it need to run?

An n8n account, plus your own GitHub and Qdrant accounts, and a key for OpenAI. You connect your own accounts after importing it; none are included.

What starts it?

It starts on someone opening a chat with it.

Does it use AI?

Yes. It calls OpenAI. Its answers draw on documents you give it, not on the model alone. Model calls are billed by the provider, not by n8n.

How long does it take to set up?

Take your time. At 25 steps it is large: read it before trusting it with anything live.

How do I import it?

Copy the workflow, open a new workflow in n8n and paste. The steps appear on the canvas, ready for your own accounts.

Before you run it

Nothing here has been tested by us. It is somebody's working automation, read and described from its own steps. Treat the connections it wants as a list of accounts it will touch, and read the 25 steps before you point it at anything that matters.