Server Actions "Error: Body exceeded 1mb limit" cannot be resolved since the size is hardcoded to 1mb.

[devjiwonchoi]

Goals

Add configuration options to modify the bodyParser size as it used to be available in Page Router.

Reference

• API Routes Response Size Limit

Non-Goals

1. Affect the stable features since the Server Actions are in the alpha stage at the moment.

Background

In Page Router, it was able to configure API bodyParser size by configuring the sizeLimit as follows:

export const config = {
  api: {
    responseLimit: false | '8mb' | YOUR_DESIRED_SIZE_LIMIT,
  },
}

Currently, it is hard-coded to 1mb as you can see here.

Proposal

1. Add an option to the next.config.js as serverActionsLimit under experimental until the Server Actions become stable.
2. In action-handler.ts, add a conditional value that gets the string value from the next.config.js as serverActionsLimit if valid.

UPDATE

I've worked on it and ready to open a PR.

[devjiwonchoi]

Resolved with #51104

[devjiwonchoi]

serverActiionsBodySizeLimit has been added on release v13.4.8.