Astra DB on Jamie Ede

Using Astra DB as the vector store for a DataStax docs RAG chat

Fri, 22 May 2026 12:00:00 +0000

For Astra Docs Chat , the subject matter is Astra DB Serverless: using Astra as the vector store was the natural fit, and Langflow’s DataStax bundle already wired up ingest and search components.

Overview: Building Astra Docs Chat · Langflow flows · Batch ingest

Try it: Astra Docs Chat

Collection setup ¶

Production values in the Langflow flow:

Field	Value
Collection name	`datastax_astra_docs`
Keyspace	`default_keyspace`
Same collection	Ingest flow writes; chat flow reads

First ingest into an empty collection is simplest. Re-runs append unless you configure deletion/upsert fields in the AstraDB component.

Langflow RAG over Astra DB: ingest and chat flows

Wed, 20 May 2026 16:00:00 +0000

The overview of Astra Docs Chat names Langflow once and moves on: ingest graph, chat graph, done. This post opens the hood: component chains, two published endpoints, where API keys live, and why orchestration stayed in Langflow instead of a Cloudflare Worker.

Start here if you missed the big picture: Building Astra Docs Chat

Related: Batch ingest · Proxy

Two endpoints, one product ¶

Endpoint	Purpose	Called by
`datastax-astra-ingest`	File → vectors in Astra DB	Local batch ingest script (batch ingest post )
`datastax-astra-chat`	Question → retrieve → LLM answer	Pages Function `/api/astra-chat` (proxy post )

Splitting ingest and chat keeps the public surface minimal. Visitors never trigger file upload or embedding: only the retrieval + generation path.

Batch-ingesting hundreds of markdown files through Langflow

Wed, 20 May 2026 14:00:00 +0000

Astra Docs Chat only works if the documentation already lives in a vector store. The parent post summarised that as a one-time batch job: export markdown, run an ingest flow per file, resume on failure. This post is the Langflow API pattern behind that summary.

The crawl and batch scripts live on my machine only (not published as a repo). What follows is enough to build your own ingest loop; filenames and flags match what I run locally.

Building IBM DataStax Astra Docs Chat: asking DataStax docs questions in plain English

Wed, 20 May 2026 10:00:00 +0000

After working with distributed databases at IBM DataStax, I kept doing the same thing: open five doc tabs, search, skim, repeat. The official Astra DB Serverless documentation is thorough, but there is just a lot of it.

I wanted a single place to ask normal questions (How do I create a collection?, What are PCU groups?, How does hybrid search work?) and get answers grounded in the real docs, not a model’s best guess from training data.