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Connect Clickhouse and Mailchimp in our serverless environment

Use this template to Read rows from Clickhouse table using them to create email suscribers in Mailchimp.


Read rows from Clickhouse table

Used integrations:
class ClickhouseSourceSelect {
async init() {
// TODO: Create your clickhouse credential
// More info at
this.clickhouse = yepcode.integration.clickhouse(

async fetch(publish, done) {
// TODO: customize your sql query
const sql = "SELECT * FROM your_table_name";

const resultSet = await this.clickhouse.query({
query: sql,
format: "CSV",
const stream =;
stream.on("data", (rows) => {
stream.on("end", done);

async close() {
await this.clickhouse.close();

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Create email suscribers in Mailchimp

Used integrations:
class HttpTargetMailchimpCreateEmailSuscribers {
async init() {
// TODO: Create your http credential with mailchimp information:
// More info at
// Official docs:
this.mailchimp = await yepcode.integration.http(
async consume(item) {
// TODO: Create an email suscriber to a workflow indicating workflow id, workflow emaail id and email address you want to suscribe.
// More info at
`/automations/${item.workflowId}/emails/${item.workflowEmailId}/queue`, {
workflow_id: item.workflowId,
workflow_email_id: item.workflowEmailId,
email_address: item.emailAddress,

async close() {}

Other combinations

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