keyInvalid Error when calling Google Calendar API
问题 I'm writing a Lambda function that queries Google Calendar events. Although I successfully created a credential (client ID, and client secret) on Google Developers Console, I cannot access the events. Error: { "error": { "errors": [{ "domain": "usageLimits", "reason": "keyInvalid", "message": "Bad Request" } ], "code": 400, "message": "Bad Request" } } My http request looks like this: https://www.googleapis.com/calendar/v3/calendars/MY_CLIENT_ID/events?key=MY_CLIENT_SECRET What went wrong?