CORS Issue resolution at AWS S3 bucket level —CORS configuration

Go To AWS S3 Console and add config json as shown below

Click on Edit and paste below config JSON. Click Save changes.

[
{
“AllowedHeaders”: [
“” ], “AllowedMethods”: [ “GET”, “PUT”, “POST”, “DELETE” ],

“AllowedOrigins”: [ “*”
],
“ExposeHeaders”: [
“x-amz-server-side-encryption”,
“x-amz-request-id”,
“x-amz-id-2”
],
“MaxAgeSeconds”: 30000
}
]

AWS S3 – Data upload c#

Log in to AWS console https://aws.amazon.com/console/

Amazon S3 : Amazon S3 or Amazon Simple Storage Service is a service offered by Amazon Web Services that provides object storage through a web service interface. Amazon S3 uses the same scalable storage infrastructure that Amazon.com uses to run its e-commerce network.

.NET CORE API Route – Parameter with string data type doesn’t works.

Angular 14 CORS Issue resolution

Let’s see how to resolve CORS error :

blocked by CORS policy: No ‘Access-Control-Allow-Origin’ header is present on the requested resource

Bearer vs bearer use in header

Bearer vs bearer use in header

Read token in api action

Read token in api action

Swashbuckle.AspNetCore.Annotations

Provides custom attributes that can be applied to controllers, actions and models to enrich the generated Swagger.

https://www.nuget.org/packages/Swashbuckle.AspNetCore.Annotations

model validation in .net core

using Microsoft.AspNetCore.Mvc.ModelBinding;

Use BindRequired

dynamically generate query string

namespace Microsoft.AspNetCore.WebUtilities.QueryHelpers

QueryHelpers.AddQueryString method Append the given query keys and values to the URI.

Swagger UI doesn’t support GET requests with parameters

following error message appears: “TypeError: Failed to execute ‘fetch’ on ‘Window’: Request with GET/HEAD method cannot have body”.

—Solution —

we have to use [FromQuery] parameters instead of [FromBody]