Cloudflare Developers•7mo ago

Exporting multiple functions in middleware plugins

I am looking into using cloudflare plugins to apply middleware. We have multiple functions we would like to chain together. - One option is to create 4 separate repos. One for each plugin, and then chain them together in the application. However this is not a desirable option for us. - the second is to export a single plugin which uses flags to apply the different functions as needed. - We are wondering if we can export multiple functions from a single plugin and import whichever ones are needed, to be chained together in the function. This is the preferred option. Can anybody confirm that this is a viable option, and give advice on how best to do this? Thanks in advance

2 Replies

zingzong1073•7mo ago

I would also like to double check some details: - I believe we can chain mutliple plugins like so:

// functions/myPlugin.ts

export const onRequestFunction1 = (context) => {
  // Your implementation for the first onRequest function
};

export const onRequestFunction2 = (context) => {
  // Your implementation for the second onRequest function
};

export const onRequestFunction3 = (context) => {
  // Your implementation for the third onRequest function
};

// functions/myPlugin.ts

export const onRequestFunction1 = (context) => {
  // Your implementation for the first onRequest function
};

export const onRequestFunction2 = (context) => {
  // Your implementation for the second onRequest function
};

export const onRequestFunction3 = (context) => {
  // Your implementation for the third onRequest function
};

and import them like so:

// functions/someRoute.ts

import { onRequestFunction1, onRequestFunction2, onRequestFunction3 } from '@your/cloudflare-plugin';

export const onRequestChain = [
  onRequestFunction1,
  onRequestFunction2,
  onRequestFunction3,
];

// functions/someRoute.ts

import { onRequestFunction1, onRequestFunction2, onRequestFunction3 } from '@your/cloudflare-plugin';

export const onRequestChain = [
  onRequestFunction1,
  onRequestFunction2,
  onRequestFunction3,
];

Can anybody confirm this?

kian•7mo ago

https://developers.cloudflare.com/pages/platform/functions/middleware/#chain-middleware

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Exporting multiple functions in middleware plugins