node.js – Solving Unauthorized API call using React, Node, Express

I am trying to use Marea Tide Api to build a tide application returning results based on location (latitude, longitude). I was originally struggling to make a successful fetch from the front end due to a CORS error. I am now trying to build an express backend to both hide my api keys and navigate … Read more

c# – Locating calling code when it is not listed in the call stack (to solve null reference exception)

I have the following error System.NullReferenceException HResult=0x80004003 Message=Object reference not set to an instance of an object. Source=DevExpress.Persistent.BaseImpl.EFCore.v22.1 StackTrace: at DevExpress.Persistent.BaseImpl.EFCore.AuditTrail.AuditDataItem.UpdateDefaultString(IEFCoreWeakReference objectForUpdate, EntityEntry entityEntry, Object key) in DevExpress.PersistentDevExpress.Persistent.BaseImpl.EFCoreAuditTrailAuditDataItem.cs:line 99 The complete call stack is DevExpress.Persistent.BaseImpl.EFCore.v22.1.dll!DevExpress.Persistent.BaseImpl.EFCore.AuditTrail.AuditDataItem.UpdateDefaultString(DevExpress.Persistent.BaseImpl.EFCore.IEFCreUpdateFrame object.EntryEntry.UpdateDefaultString) ) Line 99 C# DevExpress.Persistent.BaseImpl.EFCore.v22.1.dll!DevExpress.Persistent.BaseImpl.EFCore.AuditTrail.AuditDataItem.UpdatePersistentData(System.Collections.Generic.Express.Persistre.PakIRemistore.Devent.>) weakReferences) Line 63 C# DevExpress.Persistent.BaseImpl.EFCore.v22.1.dll!DevExpress.Persistent.BaseImpl.EFCore.AuditTrail.AuditDataContainer.AttachAuditData(Microsoft.EntityFrameworkCore.Express.BtextIbConist.73) .v22.1.dll!DevExpress.Persistent.BaseImpl.EFCore.AuditTrail.AuditDataContainer.SaveAuditData(Microsoft.EntityFrameworkCore.DbContext dbContext) Line 59 C# DevExpress.Persistent.CordImpl.Express2. istent.BaseImpl.EFCore.AuditTrail.AuditTrailService.AuditedDbContext_SavedChanges(object sender, Microsoft.EntityFrameworkCore.SavedChangesEventArgs … Read more

xamarin.forms – Why is app in the Google developer console crashing with tiktok appearing in an http call?

My Xamarin Forms app in the Google Play console is crashing with the following stack trace (only a single line is given to me): ANR in;PID: 15339;Broadcast of Intent { act=android.accounts.LOGIN_ACCOUNTS_CHANGED flg=0x5000010 }; It occurs when the user is doing a C# HttpClient request to a website. The last second of logcat logs … Read more

javascript – How do I return the response from an asynchronous call?

→ For a more general explanation of asynchronous behavior with different examples, see Why is my variable unaltered after I modify it inside of a function? – Asynchronous code reference → If you already understand the problem, skip to the possible solutions below. The A in Ajax stands for asynchronous. That means sending the request … Read more

flutter – MissingStubError: ‘update’ No stub was found which matches the arguments of this method call: update

I’m following a tutorial for a messaging app using flutter & it’s connecting to rethinkdb. I’m trying to follow along with the latest packages and versions. I’m on a section where the author is using mockito for testing. I’m getting an error. I’m a beginner so the error is likely to be something very simple … Read more