# ETL pipeline for text processing with MongoDB and Postgres: n8n workflow

> Started by a clock, and works across MongoDB, Postgres, Slack and X. 9 steps, 1 branch: a working afternoon to understand properly.

Source: https://millionrounds.com/workflow/etl-pipeline-for-text-processing-with-mongodb-and-postgres (Millionrounds; every figure on the page links to its filing or article)

[Automation library](https://millionrounds.com/workflows) · [CRM](https://millionrounds.com/workflows?category=CRM#library)

# ETL pipeline for text processing with MongoDB and Postgres

Started by a clock, and works across MongoDB, Postgres, Slack and X. 9 steps, 1 branch: a working afternoon to understand properly.

Medium

[Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fetl-pipeline-for-text-processing-with-mongodb-and-postgres)

**9 steps** Medium: a working afternoon

**1** Branch: places the flow splits

**0** Loops or waits

**4** Services it connects to

## The flow

Starts it 1 Logic 3 Service 5

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

- 1 **Cron** Cron *Starts it*
- 2 **Twitter** Twitter *Service*
- 3 **MongoDB** Mongo Db *Service*
- 4 **Google Cloud Natural Language** Google Cloud Natural Language *Service*
- 5 **Set** Set *Logic*
- 6 **Postgres** Postgres *Service*
- 7 **IF** If *Logic*
- 8 **Slack** Slack *Service*
- 9 **NoOp** No Op *Logic*

## How it's built

- **Starts on:** A clock
- **Steps:** 9, with 1 branch
- **Size:** Medium: a working afternoon
- **Connects to:** MongoDB, Postgres, Slack, X
- **Model:** None. This is plumbing, not judgement

## Questions

What does it need to run?

An n8n account, plus your own MongoDB, Postgres, Slack and X accounts. You connect your own accounts after importing it; none are included.

What starts it?

It starts on a clock.

Does it use AI?

No. Every step is fixed logic or a call to a service, so it does the same thing every time.

How long does it take to set up?

Plan an afternoon. 9 steps is enough that you should read each one before running it.

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 9 steps before you point it at anything that matters.

## Run it in n8n

- **Create your n8n account** Free to start. n8n is where the workflow runs. [Create an n8n account ↗](https://millionrounds.com/n8n)
- **Download the workflow** Free with a Millionrounds account. [Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fetl-pipeline-for-text-processing-with-mongodb-and-postgres)
- **Paste it into n8n** Open a new workflow in n8n and paste. Then connect your own accounts.

Stored with the author's traces removed: canvas notes, instance identifiers, saved credential names and any live document they had left behind.

## Connects to

Each opens the other workflows that use it.

[MongoDB](https://millionrounds.com/workflows?service=MongoDB#library)[Postgres](https://millionrounds.com/workflows?service=Postgres#library)[Slack](https://millionrounds.com/workflows?service=Slack#library)[X](https://millionrounds.com/workflows?service=X#library)

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Also crm, with the same services where possible, closest in size first.

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