Batch API requests
How to send multiple API requests using batching
Table of contents
- How to split requests
MailSlurp enforces limits on the number of recipients that can be sent per email sending request. The email sending options permit maximum 10 to
, cc
or bcc
recipients per field. This means if you wish to send to more than 10 recipients per field you should batch your API requests:
How to split requests
Batch your recipient requests by splitting an array of recipients into chunks:
// MailSlurp limit `to`, `bcc` and `cc` recipient fields to maximum 10 recipients
// so to send emails to more than 10 recipients batch your api requests
const chunkSize = 10;
for (let i = 0; i < recipients.length; i += chunkSize) {
const recipientGroup: string[] = recipients.slice(i, i + chunkSize);
// add a pause to avoid rate limits
await new Promise((r) => setTimeout(r, 100));
// send email to chunk of recipients
await mailslurp.inboxController.sendEmailAndConfirm({
inboxId: inbox.id,
sendEmailOptions: {
to: recipientGroup,
subject,
},
});
}
Remember to include a time pause in your request loop to avoid rate limiting.