feat: Add errors, messages, and results properties

CHANGELOG.md

@@ -7,6 +7,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/).
 ## [Unreleased]
 
 ### Added
+- Added `Request.messages`, `Request.errors` and `Request.results`
 ### Changed
 ### Deprecated
 ### Removed

apis/events.d.ts

@@ -2,6 +2,7 @@ import { Definition, LinkedCSN } from './linked'
 import { Query } from './cqn'
 import { ref } from './cqn'
 import * as express from 'express'
+import { levels } from './log'
 
 
 /**
@@ -54,6 +55,18 @@ export class Request<
   P extends Record<string, any>[] = Record<string, any>[]
 > extends Event<D> {
 
+  messages: {message: string, numericSeverity: levels}[]
+
+  errors: {
+    code?: number,
+    message: string,
+    stack: string,
+    target?: string,
+    args?: unknown[],
+  }[]
+
+  results: D[]
+
   params: P
 
   method: string

test/typescript/apis/project/cds-services.ts

@@ -188,6 +188,11 @@ srv.before('*', async req => {
   req.error(1, 'msg')
   req.notify(1, 'msg', 'target', ['key', 2])
   req.warn(1, 'msg', 'target', [])
+  req.messages.at(0)?.message
+  req.messages.at(0)?.numericSeverity
+  req.results.at(0)
+  req.errors.at(0)?.stack
+  req.errors.at(0)?.message
   const thing: number | undefined = 42 as number | undefined
   // @ts-expect-error  possibly undefined - goes away after req.reject
   thing.toExponential()
@@ -213,6 +218,11 @@ srv.after('*', (results, req) => {
 srv.after('UPDATE', Books, (results, req) => {
   req.data
   results[0]
+  req.results.at(0)  // any, as Books is from cds.entities
+})
+srv.after('UPDATE', Foos, (results, req) => {
+  req.data
+  req.results.at(0)?.ref  // Foo, as Foos is a cds-typer dummy
 })
 
 srv.on("action1", req => {