Receive webhooks from another service

Receiving Webhooks

You can use your Steamship package to receive a webhooks other services:

  • Accept data from Zapier
  • Receive new messages from a customer service apps
  • Register as a handler for a chat bot framework

Every Steamship package instance provides an HTTP API, so receiving webhooks with a package is easy.

Step 1. Write a Package Method

Here’s an example of a package method called on_new_email. It is annotated with the @post annotation to register it as an HTTP POST endpoint, and it takes two keyword arguments.

class MyPackage(PackageService):
   def on_new_email(self, sender: str = None, body: str = None) -> str:
      """Receive a webhook notification with a message from a user and save it to a new file."""
        tags=Tag.CreateRequest(kind="sender", name=sender),
      return "OK"

Step 2. Deploy your package and create an instance

Code packages themselves don’t do anything. To create your API, you have to first:

Step 3. Determine your instance’s Webhook URL

When you create an instance of your package, its API is assigned a Base URL. Determine your instance’s Base URL using the instructions on that linked page. Then add the method name to get your instance’s Webhook URL.

For example, if your instance’s Base URL was:


then the webhook URL given the on_new_email method above would be:


Step 4. Configure your webhook provider

The service sending your webhook will need your Webhook URL.

Steamship webhooks have a few additional requirements:

  • The Content-Type header should be application/json
  • The Authorization header should be Bearer {api-key}, replacing {api-key} with your API Key
  • The HTTP verb can be POST or GET depending on whether you used @post or @get to register the Steamship method
  • HTTP POST bodies should be JSON-encoded