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Prepare a transaction state subscription from a webhook

A webhook can turn a transaction hash into a ready-to-review subscription message for Blocknative.

Trigger

Webhook received

Notis starts this workflow when an external tool or custom backend sends an HTTP request.

Action

Subscribe Transaction Hash

Tool to subscribe to transaction state change events of an ethereum transaction hash. use after establishing a blocknative websocket connection to prepare the subscription message.

Why this helps

You have the hash, but preparing transaction state monitoring still means switching tools and copying details.

  • Prepare the subscription message from an incoming transaction hash.
  • Keep transaction monitoring setup close to its originating alert.

Setup

Build it in a few focused steps.

  • 1Connect Blocknative once in Notis.
  • 2Create an automation by describing the outcome or using Automations, New Automation.
  • 3Ask Notis to prepare a Blocknative subscription message for the Ethereum transaction hash supplied by the webhook.
  • 4Select a webhook trigger and choose where run reports go.
  • 5Test with one real hash example.

Questions about this workflow

Does the action monitor the transaction immediately?

It prepares the subscription message. Establish the Blocknative websocket connection and use the message to subscribe.

What transaction does this support?

This action subscribes to state changes for an Ethereum transaction hash.

When this happens · Trigger

Do this · Action

Supported Triggers and Actions

Notis builds workflows that link Canvas to Blocknative. A trigger fires from one place; an action lands in another.

Canvas triggers

Blocknative actions

Recurring trigger

Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.

TriggerScheduled

Configure Mempool Filters

Tool to configure filters and abi decoding for ethereum mempool transactions. use after establishing a blocknative websocket connection to set up event filters and decoding.

ActionInstant

Webhook trigger

Notis starts this workflow when an external tool or custom backend sends an HTTP request.

TriggerInstant

Get Gas Price Distribution

Tool to retrieve the current mempool gas price distribution breakdown. use when analyzing gas price trends or preparing fee strategies.

ActionInstant

Canvas Assignment Graded

Polls Canvas for newly graded submissions for a specific assignment.

TriggerPolling

Get Gas Oracles

Tool to retrieve metadata on supported gas oracles per chain. use when you need to dynamically discover all available on-chain gas estimation oracles across networks.

ActionInstant

New Canvas Assignment Submission

Polls Canvas for new submissions to a specific assignment.

TriggerPolling

Get Gas Prices

Tool to fetch gas price estimates for specific inclusion probabilities. use when you need gas price ranges for the next block or next ~10 seconds.

ActionInstant

New Canvas Discussion Message

Polls Canvas discussion topics for new messages.

TriggerPolling

Get Supported Chains

Tool to retrieve supported chains metadata. use when discovering available networks for blocknative gas services.

ActionInstant

New Canvas Discussion Topic

Polls a Canvas course for new discussion topics.

TriggerPolling

Get Base Fee Estimates

Tool to get real-time predictions for base fee and blob base fee for the next 5 blocks. use when you need both 99% and 50% confidence estimates for upcoming blocks.

ActionInstant

New Course Created for User

Polls Canvas for newly created courses for a specific user.

TriggerPolling

Subscribe Multichain

Tool to generate websocket subscription details for events across multiple chains. use when preparing to track a transaction hash or account address across chains via blocknative multichain sdk.

ActionInstant

New Canvas File Upload

Polls a Canvas course for new file uploads.

TriggerPolling

Subscribe Transaction Hash

Tool to subscribe to transaction state change events of an ethereum transaction hash. use after establishing a blocknative websocket connection to prepare the subscription message.

ActionInstant

Connect any two apps with Notis in the middle.

Canvas and Blocknative, or any other combination from 1,000+ integrations.

When this happens · Trigger

Do this · Action

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