JSON and HTTP: Payload Validate-Then-Forward Template

This Spojit template catches an inbound webhook, checks the JSON payload against a schema, drops anything malformed, and forwards only clean events to a downstream API.

What It Builds

A Webhook trigger receives an external HTTP POST, then a Connector node on the json connector validates the parsed body against a schema you define. A Condition node splits valid from invalid: valid events go to a Connector node on the http connector that forwards them to your downstream REST API, while malformed events are rejected and logged so they never reach the destination. The result is a clean gate that protects the downstream system from bad data.

The Prompt

Paste this into Miraxa and it builds the workflow, connecting the tools for you:

Build a workflow with a Webhook trigger that receives a JSON event. Add a Connector node on the json connector that validates the request body against a schema requiring an "id" string, an "email" string, and a numeric "amount". Add a Condition node: if the payload is valid, forward it with an http-post Connector node to https://api.example.com/v1/events with an Authorization header; if it is invalid, send me a Send Email summarizing the validation errors and stop.

Connectors Used

  • Webhook trigger - receives the inbound HTTP POST and exposes the parsed body as {{ input }}.
  • json - the validate tool checks the payload against your schema and reports each error.
  • http - the http-post tool forwards each valid event to your downstream API.
  • Send Email node - notifies you when a payload is rejected (built in, no connection needed).

Customize It

Change the schema fields in the prompt to match your own payload (add required keys, types, or formats), swap the forward URL and Authorization header for your real endpoint, and decide what happens to rejects: email yourself, write the errors to a database, or simply stop. You can also add a Response node so the webhook caller gets back a clear accepted or rejected result.

Tips

  • Keep the forwarding Connector node in Direct mode with http-post so it is deterministic and costs no AI credits: this is a predictable single call, not a judgment task.
  • Secure the trigger with a signing connection (Spojit, Shopify, GitHub, Slack, or Custom HMAC) so only legitimate senders can start a run.
  • The validate tool returns the specific fields that failed, so template those into your reject notification with {{ }} to make debugging fast.

Related

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