Dedupe based on incoming key (exit early if we've seen this key before)
@dylburger
code:
data:privatelast updated:1 year ago
today
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steps.
trigger
HTTP API
Deploy to generate unique URL
This workflow runs on Pipedream's servers and is triggered by HTTP / Webhook requests.
steps.
nodejs
auth
to use OAuth tokens and API keys in code via theauths object
code
Write any Node.jscodeand use anynpm package. You can alsoexport datafor use in later steps via return or this.key = 'value', pass input data to your code viaparams, and maintain state across invocations with$checkpoint.
async (event, steps) => {
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}
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const get = require("lodash.get")
const includes = require("lodash.includes")
const MAX_LENGTH = 10000

// Retrieve emails stored in $checkpoint
const emails = get($checkpoint, 'emails', [])

// and grab the key to dedupe in, from the event body
const { email } = event.body

if (includes(emails, email)) {
  $end("Email already seen. Exiting early")
}

if (emails.length >= MAX_LENGTH) {
  emails.shift()
}

// Store new emails back in $checkpoint
emails.push(email)
$checkpoint = {
  emails
}