I am using React for the frontend and .NET Core for the backend. Everything works fine in the local environment, but when I deploy into windows server, I get a 404 - File or Directory Not Found error. I haven't been able to find a solution. Please help me.
React uses client-side routing, but IIS (or any server) handles server-side routing. Make sure you're configuring your server to serve the index.html for all routes. You can do this by updating the web.config file if you're using IIS:
<configuration>
<system.webServer>
<rewrite>
<rules>
<rule name="React Routes" stopProcessing="true">
<match url=".*" />
<conditions logicalGrouping="MatchAll">
<add input="{REQUEST_FILENAME}" matchType="IsFile" negate="true" />
<add input="{REQUEST_FILENAME}" matchType="IsDirectory" negate="true" />
</conditions>
<action type="Rewrite" url="/" />
</rule>
</rules>
</rewrite>
</system.webServer>
</configuration>