From ad66d2519ee5f0b2335f4681201e447a5b8be1e8 Mon Sep 17 00:00:00 2001
From: Moriz Wahl <moriz.wahl@gmx.de>
Date: Thu, 15 Sep 2022 12:29:28 +0200
Subject: [PATCH 1/5] refactor: Add Client Request Time to Client Request and
 Add it to Context

---
 frontend/src/plugins/apolloProvider.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/frontend/src/plugins/apolloProvider.js b/frontend/src/plugins/apolloProvider.js
index 4a0ff9914..05954d36b 100644
--- a/frontend/src/plugins/apolloProvider.js
+++ b/frontend/src/plugins/apolloProvider.js
@@ -12,6 +12,7 @@ const authLink = new ApolloLink((operation, forward) => {
   operation.setContext({
     headers: {
       Authorization: token && token.length > 0 ? `Bearer ${token}` : '',
+      clientRequestTime: new Date().toString(),
     },
   })
   return forward(operation).map((response) => {

From 80bbf2411669740747efcc3271bc49bc434ee88c Mon Sep 17 00:00:00 2001
From: Moriz Wahl <moriz.wahl@gmx.de>
Date: Thu, 15 Sep 2022 12:30:29 +0200
Subject: [PATCH 2/5] add client request time to context

---
 backend/src/server/context.ts | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/backend/src/server/context.ts b/backend/src/server/context.ts
index d9fd55fe4..5bfc22e72 100644
--- a/backend/src/server/context.ts
+++ b/backend/src/server/context.ts
@@ -9,6 +9,7 @@ export interface Context {
   setHeaders: { key: string; value: string }[]
   role?: Role
   user?: dbUser
+  clientRequestTime?: string
   // hack to use less DB calls for Balance Resolver
   lastTransaction?: dbTransaction
   transactionCount?: number
@@ -18,14 +19,17 @@ export interface Context {
 
 const context = (args: ExpressContext): Context => {
   const authorization = args.req.headers.authorization
-  let token: string | null = null
-  if (authorization) {
-    token = authorization.replace(/^Bearer /, '')
-  }
-  const context = {
-    token,
+  const clientRequestTime = args.req.headers.clientrequesttime
+  const context: Context = {
+    token: null,
     setHeaders: [],
   }
+  if (authorization) {
+    context.token = authorization.replace(/^Bearer /, '')
+  }
+  if (clientRequestTime && typeof clientRequestTime === 'string') {
+    context.clientRequestTime = clientRequestTime
+  }
   return context
 }
 

From 23f5ebabd3d2eb5be98d5437b7e61b4629066721 Mon Sep 17 00:00:00 2001
From: Moriz Wahl <moriz.wahl@gmx.de>
Date: Thu, 15 Sep 2022 12:35:08 +0200
Subject: [PATCH 3/5] add client request time to request header of admin
 interface

---
 admin/src/plugins/apolloProvider.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/admin/src/plugins/apolloProvider.js b/admin/src/plugins/apolloProvider.js
index 1f51be20a..95b7aab7e 100644
--- a/admin/src/plugins/apolloProvider.js
+++ b/admin/src/plugins/apolloProvider.js
@@ -10,6 +10,7 @@ const authLink = new ApolloLink((operation, forward) => {
   operation.setContext({
     headers: {
       Authorization: token && token.length > 0 ? `Bearer ${token}` : '',
+      clientRequestTime: new Date().toString(),
     },
   })
   return forward(operation).map((response) => {

From 5c784abe8a00e9222a59993901ca7084b513b4c8 Mon Sep 17 00:00:00 2001
From: Moriz Wahl <moriz.wahl@gmx.de>
Date: Thu, 22 Sep 2022 08:53:58 +0200
Subject: [PATCH 4/5] test client request time in request header

---
 frontend/src/plugins/apolloProvider.test.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/frontend/src/plugins/apolloProvider.test.js b/frontend/src/plugins/apolloProvider.test.js
index aeb02243c..31e1a664b 100644
--- a/frontend/src/plugins/apolloProvider.test.js
+++ b/frontend/src/plugins/apolloProvider.test.js
@@ -98,6 +98,7 @@ describe('apolloProvider', () => {
         expect(setContextMock).toBeCalledWith({
           headers: {
             Authorization: 'Bearer some-token',
+            clientRequestTime: expect.any(String),
           },
         })
       })
@@ -113,6 +114,7 @@ describe('apolloProvider', () => {
         expect(setContextMock).toBeCalledWith({
           headers: {
             Authorization: '',
+            clientRequestTime: expect.any(String),
           },
         })
       })

From 91acb5f4b82edd2a5dd47920a1fb1a5939e1edef Mon Sep 17 00:00:00 2001
From: Moriz Wahl <moriz.wahl@gmx.de>
Date: Thu, 22 Sep 2022 08:57:06 +0200
Subject: [PATCH 5/5] test client request time in request header

---
 admin/src/plugins/apolloProvider.test.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/admin/src/plugins/apolloProvider.test.js b/admin/src/plugins/apolloProvider.test.js
index 75e415901..7889c3318 100644
--- a/admin/src/plugins/apolloProvider.test.js
+++ b/admin/src/plugins/apolloProvider.test.js
@@ -94,6 +94,7 @@ describe('apolloProvider', () => {
         expect(setContextMock).toBeCalledWith({
           headers: {
             Authorization: 'Bearer some-token',
+            clientRequestTime: expect.any(String),
           },
         })
       })
@@ -109,6 +110,7 @@ describe('apolloProvider', () => {
         expect(setContextMock).toBeCalledWith({
           headers: {
             Authorization: '',
+            clientRequestTime: expect.any(String),
           },
         })
       })