Here is the current syntax for an Openshift Serverless Function for a "normal" function
/**
* Your HTTP handling function, invoked with each request. This is an example
* function that echoes its input to the caller, and returns an error if
* the incoming request is something other than an HTTP POST or GET.
*
* In can be invoked with 'func invoke'
* It can be tested with 'npm test'
*
* @param {Context} context a context object.
* @param {object} context.body the request body if any
* @param {object} context.query the query string deserialized as an object, if any
* @param {object} context.log logging object with methods for 'info', 'warn', 'error', etc.
* @param {object} context.headers the HTTP request headers
* @param {string} context.method the HTTP request method
* @param {string} context.httpVersion the HTTP protocol version
* See: https://github.com/knative-sandbox/kn-plugin-func/blob/main/docs/guides/nodejs.md#the-context-object
*/
const handle = async (context) => {
// YOUR CODE HERE
context.log.info(JSON.stringify(context, null, 2));
// If the request is an HTTP POST, the context will contain the request body
if (context.method === 'POST') {
return {
body: context.body,
}
// If the request is an HTTP GET, the context will include a query string, if it exists
} else if (context.method === 'GET') {
return {
query: context.query,
}
} else {
return { statusCode: 405, statusMessage: 'Method not allowed' };
}
}
// Export the function
module.exports = { handle };The only parameter here is the context object, which provides a few pieces of information
If you need a function that can also handle CloudEvents, then an extra event param is used:
const { CloudEvent, HTTP } = require('cloudevents');
/**
* Your CloudEvent handling function, invoked with each request.
* This example function logs its input, and responds with a CloudEvent
* which echoes the incoming event data
*
* It can be invoked with 'func invoke'
* It can be tested with 'npm test'
*
* @param {Context} context a context object.
* @param {object} context.body the request body if any
* @param {object} context.query the query string deserialzed as an object, if any
* @param {object} context.log logging object with methods for 'info', 'warn', 'error', etc.
* @param {object} context.headers the HTTP request headers
* @param {string} context.method the HTTP request method
* @param {string} context.httpVersion the HTTP protocol version
* See: https://github.com/knative-sandbox/kn-plugin-func/blob/main/docs/guides/nodejs.md#the-context-object
* @param {CloudEvent} event the CloudEvent
*/
const handle = async (context, event) => {
// YOUR CODE HERE
context.log.info("context");
context.log.info(JSON.stringify(context, null, 2));
context.log.info("event");
context.log.info(JSON.stringify(event, null, 2));
return HTTP.binary(new CloudEvent({
source: 'event.handler',
type: 'echo',
data: event
}));
};
module.exports = { handle };