nodejs

Overview ¶

Package nodejs implements nodejs runtime

nodejs code need to export a handler function:

exports.handler = function(context, event) {
	// ...
	context.callback(reply); // MUST return reply via callback
}

context is current call context, it contains the following:

  callback:
		Callback function, *must* be used to return response.
		Response can be one of:
			- string
			- Buffer
			- array of [status, body]
			- context.Response object

		Response:
			A response. Has the following fields
				- body
				- headers
				- content_type
				- status_code

		Logging functions:
			- logger.error: function(message)
			- logger.warn: function(message)
			- logger.info: function(message)
			- logger.debug: function(message)
			- logger.errorWith: function(message, with_data)
			- logger.warnWith: function(message, with_data)
			- logger.infoWith: function(message, with_data)
			- logger.debugWith: function(message, with_data)

Event is the current event, it contains the following: - body: Buffer (*not* string, use event.body.toString()) - content_type: string - trigger:

• class: string
• kind: string

- fields: object of field->value - headers: object of header->value - id: string - method: string - path: string - size: int - timestamp: Date - url: string

If you use your own base image, make sure to set NODE_PATH. In nuclio/handler-nodejs-alpine image NODE_PATH is set to /usr/local/lib/node_modules