Amazon EventBridge is a serverless event bus service that enables you to easily connect applications using data from various event sources. By setting RisingWave as a destination for your EventBridge rule targets, you can route real-time event data generated in your Amazon account directly into your database. This allows you to leverage RisingWave’s capabilities for real-time data processing, analytics, and integrations with downstream systems, all without needing additional intermediate brokers or components. This guide will walk through the steps to set up RisingWave as a destination for Amazon EventBridge webhooks.

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1. Create a table in RisingWave

Next, create a table configured to accept webhook data from Amazon EventBridge. 
create table wbhtable (
  data JSONB
) WITH (
  connector = 'webhook',
  [ is_batched = true ]
) VALIDATE SECRET test_secret AS secure_compare(
  headers->>'authorization',
  test_secret
);
Parameter or clauseDescription
data JSONBDefines the name of column to store the JSON payload from the webhook. Currently, only JSONB type is supported for webhook tables.
is_batchedOptional, set to true to enable batch ingestion of multiple JSON lines in a single request.
SECRET <secret>Use an existing secret to verify incoming webhook requests. This is optional. You can also use a raw string to verify.
headers->>'...'Extracts the signature provided by Amazon EventBridge in the authorization HTTP header. The header key can be any string value and you can specify it when you create your webhook destination for RisingWave.

In secure_compare() function, the whole HTTP header is interpreted as a JSONB object, and you can access the header value using the ->> operator, but only the lower-case header names in the ->> operator, otherwise the verification will fail.
test_secretProvides the expected signature. In the example above, we directly compare the secret value of test_secret with the signature provided in the headers to verify the requests.
secure_compare(...)Validates requests by matching the header signature against the computed signature, ensuring only authenticated requests are processed. The secure_compare() function compares two strings in a fixed amount of time, regardless of whether they are equal or not, ensuring that the comparison is secure and resistant to timing attacks.
Or you can also use raw string for verification without secret: 
-- Example using raw string 'TEST_WEBHOOK' to generate signature.
CREATE TABLE wbhtable (
  data JSONB
) WITH (
  connector = 'webhook'
) VALIDATE AS secure_compare(
  headers->>'authorization',
  'TEST_WEBHOOK'
);

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2. Set up webhook in Amazon EventBridge

After configuring RisingWave to accept webhook data, set up Amazon EventBridge to send events to your RisingWave instance.

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RisingWave webhook URL

The webhook URL should follow this format: https://<HOST>/webhook/<database>/<schema_name>/<table_name>.
ParameterDescription
HOSTThe hostname or IP address where your RisingWave instance is accessible. This could be a domain name or an IP address.
databaseThe name of the RisingWave database where your table resides
schema_nameThe schema name of your table, typically public unless specified otherwise.
table_nameThe name of the table you created to receive webhook data, e.g., wbhtable.

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Configure webhook in Amazon EventBridge

For more detailed instructions, refer to the Amazon EventBridge documentation. Before configuring RisingWave as a target in EventBridge, it’s important to understand two key concepts:
  • Event Bus: An EventBridge event bus is a logical collection point for events. Events from various sources flow into an event bus. You can use the default event bus or create your own custom event bus to organize and isolate your events.
  • Rule: A rule in EventBridge matches incoming events and routes them to targets based on defined event patterns or schedules. When a rule matches an event, it sends the event to the configured target—in this case, your RisingWave webhook.
1

Open the Amazon EventBridge Console:
Sign in to the AWS Management Console and navigate to Amazon EventBridge.
2

Create or Select an Event Bus:
  • In the EventBridge console, go to Event buses.
  • You can use the default event bus or create a new custom event bus. To create a new event bus, click Create event bus, provide a name, and click Create.
3

Create a Rule for the Event Bus:
  • Navigate to Rules in the left sidebar.
  • Click Create rule.
  • Enter a name and description for your rule.
  • Under Event bus, select the event bus you created or the default one if you wish to use it.
  • Define the event pattern or schedule that determines when this rule triggers.
4

Add a Target to the Rule under Select targets:
  • From the Target dropdown, select EventBridge API destination. Create a new target or use a existing target.
  • For a new target, click Create a new API destination. In the API destination endpoint field, enter your RisingWave webhook URL. Set HTTP method to POST.
5

Configure Authentication:
  • Under Configure authorization, select Custom configuration.
  • For Authorization type, select API Key. Add an Authorization header in API key name. The API key name should match the key specified in your RisingWave table’s validation clause (e.g., Authorization), and the Value should be the secret you created in RisingWave (e.g., TEST_WEBHOOK).
6

Finish Other Configurations and Save Your Configuration:
  • Review your settings to ensure correctness.
  • Click Create rule to finalize the configuration.

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3. Push Data from Amazon EventBridge via Webhook

With the webhook configured, Amazon EventBridge will automatically send HTTP POST requests to your RisingWave webhook URL whenever there are data generated from your AWS platform. RisingWave will receive these requests, validate the signatures, and insert the payload data into the target table.

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4. Further event processing

The data in the table is already ready for further processing. You can access the fields using data->'field_name' in SQL queries. You can create a materialized view to extract specific fields from the JSON payload. 
CREATE MATERIALIZED VIEW eventbridge_events AS
SELECT
  data->>'id' AS id,
  data->'sender'->>'login' AS sender_login,
  data->>'created_at' AS event_time
FROM wbhtable;
You can now query eventbridge_events like a regular table to perform analytics, generate reports, or trigger further processing.