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ExpertEnterpriseWeb Scraping & Data ExtractionScheduled trigger31 nodes

Collect prices: Slack & Notion

Runs on a schedule across Slack, Notion and PostgreSQL, walks long lists in batches, then drops anything it has already handled. Built for research, around a "Init Cursor" step, in 31 documented nodes.

Collect prices with HTTP / REST API and PostgreSQL 24/7. An original, ready-to-import n8n workflow built around the 'Web Scraping' pattern for data & analytics. It runs on a schedule and orchestrates 31 nodes across Slack, HTTP / REST API, Notion. It uses n8n's LangChain AI nodes (Agent/Chain + chat model). Retry-on-fail is enabled on external calls. Import the JSON, add your credentials, and adapt the parameters. What used to take a morning now runs on its own.

Key benefits

  • Keeps Slack and Notion in step for research, without anyone re-typing a row
  • Safe to re-run: records already in Slack or Notion are skipped, across all 31 nodes of this research build
  • A failed Slack or Notion call is retried rather than dropped, at any of the 31 nodes in this research build
  • Batches the work so Slack rate limits never break a research run
  • Every research run leaves an audit row behind, alongside Slack

Use cases

  • Teams keeping Slack and Notion aligned by hand for research
  • A backlog too large to push into Slack in one pass, across 31 nodes
  • Research work where "Init Cursor" is still a manual step before Slack
  • Research work that only reaches Slack on a schedule, when someone remembers to start it

Integrations

SlackHTTP / REST APINotionPostgreSQLGoogle SheetsOpenAI

Workflow preview (31 nodes)

The template's actual node layout and connections. Node parameters and credential slots unlock with the download.

Daily ScheduleSchedule TriggerInit CursorSetPage LoopSplit In BatchesFetch Page from APIHttp RequestSplit Result ItemsSplit OutNormalize Page ItemsCodeRemove Duplicate Listin…Remove DuplicatesUpsert Harvest into Pos…PostgresTally Harvest StatsSummarizeFingerprint for Idempot…CodeDrop Already-Processed …Remove DuplicatesLoad Previous SnapshotNotionCompute Drift vs Snapsh…CodeEnrich with Reference D…Http RequestFold In Enrichment Fiel…SetStamp Completion TimeDate TimePersist Run MetadataExecution DataOffload to Post-Process…Execute WorkflowRecord Sub-workflow Res…Execution DataSerialize Run Output (C…Convert To FileArchive Row SnapshotGoogle SheetsAlign Field NamesRename KeysTag Pipeline MetadataSetGuard Non-Empty urlFilterSave Execution MetadataExecution DataSummarize Run StatsSetAppend Audit Row (Notio…NotionSend Summary to SlackSlackCapture Failure ContextSetEscalate Failure to Sla…SlackPark in Dead-Letter Que…Postgres

What's inside (31 nodes)

A look at the node types this workflow uses. No purchase required — full parameters and credentials are yours after you buy.

CodeConvert To FileDate TimeExecute WorkflowExecution DataFilterGoogle SheetsHttp RequestNotionPostgresRemove DuplicatesRename KeysSchedule TriggerSetSlackSplit In BatchesSplit OutSummarize

From download to running in 3 steps

  1. 1
    Import. In n8n, open Workflows → menu → “Import from File” and pick the downloaded JSON.
  2. 2
    Connect. Add your own credentials on the app nodes - n8n highlights exactly which ones need them.
  3. 3
    Activate. Run it once to test, then toggle Active. The automation is live.

What you'll learn

Architect level

The deepest tier - sub-workflow delegation, state snapshots, and full observability.

  • Fetching pages over HTTP and shaping the response into items
  • Diffing against the previous snapshot so only real changes alert
  • Zipping parallel arrays into one item per record

Every node carries its own documentation on the canvas, plus notes explaining why the architecture was built this way, a credential setup guide, troubleshooting, and three practice exercises. Sample data comes pinned to the trigger, so you can hit Execute and watch data flow before connecting a single account.

Common questions

What exactly do I get?

The complete, ready-to-import n8n workflow as a JSON file, delivered instantly after payment. Import it into your own n8n (cloud or self-hosted), add your credentials, and it runs.

How do I import it into n8n?

In n8n, open Workflows, click the three-dot menu, choose “Import from File”, and select the downloaded JSON. Then connect your own app credentials on the highlighted nodes.

Do I need anything else for it to work?

You need your own n8n instance and accounts/credentials for the apps this workflow connects to (Slack, HTTP / REST API, Notion, PostgreSQL, …). No coding is required.

What if it doesn't work for me?

If the file is faulty, won't import, or isn't as described, contact us within 7 days and we'll fix it or refund you - see our refund policy.

Can I modify or resell it?

You can freely adapt and use it in your own or your clients' projects. Reselling or redistributing the template file itself is not permitted.

Original n8n workflow template created and owned by WorkflowCrate. After purchase you receive the ready-to-import JSON file and a license to use and adapt it in your own projects.