Building Custom Plugins

This guide explains how to create custom oRPC plugins for handlers and links.

What is a Plugin?

In oRPC, a plugin is a collection of interceptors that can work together or independently.

export class ResponseHeadersPlugin<T extends ResponseHeadersPluginContext> implements StandardHandlerPlugin<T> {
  init(options: StandardHandlerOptions<T>): void {
    options.rootInterceptors ??= []

    options.rootInterceptors.push(async (interceptorOptions) => {
      const resHeaders = interceptorOptions.context.resHeaders ?? new Headers()