CODEWITHSUNDEEP
azureazure-functionsazure-web-app-service
Rahul
Rahul

Reputation: 5774

Redirect service (302) in Azure, best possible approach?

I need to create a redirector that redirects user to an external domain while retaining the query params and one additional param.

e.g. When a user visits https://contoso.com/redirect?docId=123, it will redirect the user to https://contoso-v2.com/home?docId=123&token=xxxxxxx

Once user visits https://contoso.com/redirect?docId=123, this endpoint will process the info (from query params) and generate a token that needs to be appended in target URL.

What would be the most efficient and best way in Azure? Writing a simple Azure Web App or is there any better way?

Upvotes: -1

Views: 916

Answers (2)

Paul van Brenk
Paul van Brenk

Reputation: 7549

Updating with newer information. You can do this using a (free) Static Web App with the following config.

{
    "routes": [
        {
            "route": "/",
            "redirect": "https://www.domain.tld/",
            "statusCode": 302
        }
    ]
}

More info here: https://learn.microsoft.com/en-us/azure/static-web-apps/configuration

Upvotes: 0

amit_g
amit_g

Reputation: 31260

You could use Azure Function with HttpTrigger Binding. With consumption plan the cost would be minimal (1 million invocations are free in pay-as-you-go plan).

using System.Net;

public static async Task<HttpResponseMessage> Run(HttpRequestMessage req, TraceWriter log)
{
    log.Info("C# HTTP trigger function processed a request.");

    var uri = req.RequestUri;
    var updatedUri = ReplaceHostInUri(uri, "contoso-v2.com");

    //return req.CreateResponse(HttpStatusCode.OK, "Original: " + uri + " Updated: " + updatedUri);
    return req.CreateResponse(HttpStatusCode.Found, updatedUri);
}

private static string ReplaceHostInUri(Uri uri, string newHostName) {
    var builder = new UriBuilder(uri);

    builder.Host = newHostName;
    //Do more trasformations e.g. modify path, add more query string vars

    return builder.Uri.ToString();
}

Upvotes: 1

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