now use the CORS policy (make sure is first too)Īpp. add Cors policy - this has to be run before everything elseī(options => options.AddPolicy("ApiCorsPolicy", builder => The solution was to install (using Nuget Package Manager) and then some code to add the CORS header for "localhost" in Program.cs : var builder = WebApplication.CreateBuilder(args) Normally with this kind of error in Linux you can just add an "Access-Control-Allow-Origin" header in nginx, but this was Visual Studio 2022 and it runs a npm server via Program.cs. Managed to get this all working correctly, but every time upon running the app I ran into this annoying error in the browser console, when trying to call a Swagger created service : Access to XMLHttpRequest at ' from origin ' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. In the context of REST APIs, CORS allows making API calls from JavaScript on remote web pages, such as from the interactive documentation hosted on SwaggerHub. Using Nuget Package Manager I added the "Swashbuckle.AspNetCore" package so that API JS services can be created using Swagger. Cross-origin resource sharing (CORS) is a security mechanism that allows a web page from one domain to access resources from another domain. Will start nginx with Swagger UI on port 80. Using app.server()Īllows you to uniquely name your binding key for your specific server instance.I was building a simple Angular web API app based on the default WeatherForecast app that comes with Visual Studio 2022. You can pull a pre-built docker image of the swagger-ui directly from Docker Hub. Individually or as an array using app.servers() method. You can add server instances to your application via the app.server() method In Kubernetes, accessing your API services is usually done with help of an Ingress Controller. Use a custom SequenceHandler to change the behavior of the RestServer for the request-response lifecycle.Ĭustomize how trailing slashes are used for routingĬontrol if the server should listen on http/https when it’s started HTTP proxy integration is a simple, powerful, and versatile mechanism to build an API that allows a web application to access multiple resources or features. addheader 'Access-Control-Allow-Headers' 'DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type' WARNING : i used for the sake of simplicity, but you can - and should - always limit those rules to a more restrictive domain/subdomain list, unless you really want to enforce a wide-open CORS. Specify the base path that RestServer exposes http endpoints. Header set Access-Control-Allow-Origin '. And, to allow from a specific origin (ex: you can use the following. Header set Access-Control-Allow-Origin ''. If you want to immediately destroy all sockets upon stop, set its value to 0. Add the following in nf or any other in-use configuration file. The default value is Infinity (don’t force-close). CORS (Cross Origin Resource Sharing) is a browser security mechanism that allows Javascript on a page served from one origin (the app) to access a resource. NET Core 2. Specify the grace period in milliseconds to allow the RestServer to finish processing in-flight requests and reject new requests from keep-alive connections when the server is being stopped. NET Core 2.0 'No Access-Control-Allow-Origin header is present on the requested resource.' 10. Specify the protocol on which the RestServer listens for traffic. Specify the port on which the RestServer listens for traffic. Specify the hostname or ip address on which the RestServer will listen for traffic. RestBindings.REQUEST_BODY_PARSER_OPTIONS. The value of rest.requestBodyParser will be bound to
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