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how can we use spread operator on a pipedream step workflow
In Pipedream workflows, you can use the spread operator in a Node.js code step. The spread operator (...) is a feature of JavaScript, which is the language used in Pipedream’s code steps. It allows an iterable (like an array or object) to be expanded in places where zero or more arguments (for function calls) or elements (for array literals) are expected, or an object expression to be expanded in places where zero or more key-value pairs (for object literals) are expected. Here’s an example of how you might use the spread operator in a Pipedream workflow: ```
export default defineComponent({ async run({ steps, $ }) { const array1 = [‘a’, ‘b’, ‘c’]; const array2 = [‘d’, ‘e’, ‘f’]; const combinedArray = […array1, …array2]; console.log(combinedArray); // Output: [‘a’, ‘b’, ‘c’, ‘d’, ‘e’, ‘f’] const obj1 = { foo: ‘bar’, x: 42 }; const obj2 = { foo: ‘baz’, y: 13 }; const mergedObj = { …obj1, …obj2 }; console.log(mergedObj); // Output: { foo: ‘baz’, x: 42, y: 13 } return { combinedArray, mergedObj, }; }, });
i have an array of elements and i want to assign it to attendees in google calendar step. but the issue is that the attendee fields add this array as element, making it 2d array, which is invalid.
In Google Calendar API, the attendees field expects an array of objects, where each object represents an attendee. If you have an array of attendees, you should be able to assign it directly to the attendees field. However, if you’re seeing a 2D array, it suggests that the array is being nested within another array. Here’s an example of how you might structure your attendees array and assign it in a Pipedream workflow step: export default defineComponent({ props: { google_calendar: { type: "app", app: "google_calendar", }, calendarId: { type: "string", label: "Calendar ID", description: "The ID of the calendar where the event will be created", }, summary: { type: "string", label: "Event Summary", description: "The summary of the event", }, attendees: { type: "string[]", label: "Attendees", description: "The email addresses of the event attendees", }, start: { type: "string", label: "Start Time", description: "The start time of the event in ISO format", }, end: { type: "string", label: "End Time", description: "The end time of the event in ISO format", }, }, async run({ steps, $ }) { const attendeesObjects = this.attendees.map(email => ({ email })); return await axios($, { method: "POST", url: `https://www.googleapis.com/calendar/v3/calendars/${this.calendarId}/events`, headers: { Authorization: `Bearer ${this.google_calendar.$auth.oauth_access_token}`, 'Accept': 'application/json', 'Content-Type': 'application/json' }, data: { summary: this.summary, start: { dateTime: this.start, }, end: { dateTime: this.end, }, attendees: attendeesObjects, }, }); }, }); In this example, attendees is a prop of type string[], which means it’s an array of strings. Each string in the array is an email address of an attendee. In the run method, we map over the attendees array to create a new array of objects,
use a spread operator with variable name
In JavaScript, you can use the spread operator with a variable name to expand the elements of the array or properties of the object that the variable represents. Here’s an example of how you might do this in a Pipedream workflow: export default defineComponent({ async run({ steps, $ }) { const arrayVar = ['a', 'b', 'c']; const spreadArray = [...arrayVar]; console.log(spreadArray); // Output: ['a', 'b', 'c'] const objVar = { foo: 'bar', x: 42 }; const spreadObj = { ...objVar }; console.log(spreadObj); // Output: { foo: 'bar', x: 42 } return { spreadArray, spreadObj, }; }, }); In this example, arrayVar and objVar are variables that hold an array and an object, respectively. We use the spread operator (...) with these variable names to create new array and object (spreadArray and spreadObj) that have the same elements and properties.