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ExpertEnterpriseDocument ProcessingWebhook trigger31 nodes

Generate contracts with PostgreSQL

Fires the moment a webhook arrives across PostgreSQL, Notion and Slack, parses the incoming file into rows, then branches on the check before anything is written. Built for contracts, around a "Download Source File" step, in 31 documented nodes.

Generate contracts with HTTP / REST API and PostgreSQL in real time. An original, ready-to-import n8n workflow built around the 'Document Generation' pattern for legal & compliance. It fires on a webhook and orchestrates 31 nodes across PostgreSQL, HTTP / REST API, Notion. Retry-on-fail is enabled on external calls. Import the JSON, add your credentials, and adapt the parameters. The result is a hands-off process that just works.

Key benefits

  • Keeps PostgreSQL and Notion in step for contracts, without anyone re-typing a row
  • Safe to re-run: records already in PostgreSQL or Notion are skipped, across all 31 nodes of this contracts build
  • A failed PostgreSQL or Notion call is retried rather than dropped, at any of the 31 nodes in this contracts build
  • Every contracts run leaves an audit row behind, alongside PostgreSQL
  • Fans the same result out to Slack in the same run, for contracts

Use cases

  • Teams keeping PostgreSQL and Notion aligned by hand for contracts
  • Pushing contracts events into PostgreSQL and Notion the moment they land, not on the next poll
  • Contracts work where "Download Source File" is still a manual step before PostgreSQL
  • Contracts work that only reaches PostgreSQL when a webhook arrives, when someone remembers to start it

Integrations

PostgreSQLHTTP / REST APINotionSlackGoogle SheetsDiscord

Workflow preview (31 nodes)

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

Receive Inbound WebhookWebhookDownload Source FileHttp RequestParse CSV ContentsExtract From FileClean & Reshape RowsCodeRows Pass Validation?IfQuarantine Bad RowsNotionLoad Rows into NotionNotionOffload to Post-Process…Execute WorkflowRecord Sub-workflow Res…Execution DataLoad Previous SnapshotGoogle SheetsCompute Drift vs Snapsh…CodeSerialize Run Output (C…Convert To FileArchive Row SnapshotPostgresStamp Completion TimeDate TimePersist Run MetadataExecution DataFingerprint for Idempot…CodeDrop Already-Processed …Remove DuplicatesEnrich with Reference D…Http RequestFold In Enrichment Fiel…SetStamp Processing TimeDate TimeSort Documents Newest F…SortSave Execution MetadataExecution DataGuard Non-Empty fileNameFilterAlign Field NamesRename KeysTag Pipeline MetadataSetSummarize Run StatsSetAppend Audit Row (Postg…PostgresSend Summary to DiscordDiscordCapture 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 TimeDiscordExecute WorkflowExecution DataExtract From FileFilterGoogle SheetsHttp RequestIfNotionPostgresRemove DuplicatesRename KeysSetSlackSortWebhook

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.

  • Pulling text out of an uploaded file before parsing it
  • Validating required fields before the write
  • Upserting so reprocessing a document does not duplicate it

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 (PostgreSQL, HTTP / REST API, Notion, Slack, …). 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.