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1 Minute Fixes - Handling 302 Redirect urls

Power Automate does not handle 302 redirects out of the box like other web clients do.


A 302 redirect is when an API replies with a url that it expects you to then follow. A 301 is a permanent redirect (e.g change or url when rebranded) and a 302 is temporary (often for security).


The only way I have seen to handle it is to catch the exception and then use the redirect url in a new http call (the url is normally returned in the Location header). 




But this is not great if you want to scale out the connection (and let's be honest it's a little janky). To do it properly we need a custom connector, but guess what, they don't handle them either. Luckily there is a way, and thats so use some custom code.




The code will automatically follow the redirect url and pass on the response.




public class Script : ScriptBase
  public override async Task<HttpResponseMessage> ExecuteAsync()
    // Use the context to forward/send an HTTP request
    HttpResponseMessage response = await this.Context.SendAsync(this.Context.Request, this.CancellationToken).ConfigureAwait(false);
    // Check if the response is a 302 redirect
    if (response.StatusCode == HttpStatusCode.Found)
        // If has Loocation Header extract the redirect URL from the Location header
        if (response.Headers.Location != null)
            var redirectUrl = response.Headers.Location.ToString();     
            // Create a new request with the redirect URL
            var redirectRequest = new HttpRequestMessage(HttpMethod.Get, redirectUrl);
            // Forward the new request to the redirect URL
            response = await this.Context.SendAsync(redirectRequest, this.CancellationToken).ConfigureAwait(true);
            // If the Location header is not present, return an error response
            response = new HttpResponseMessage(HttpStatusCode.BadRequest);
            response.Content = CreateJsonContent("Location header missing in the redirect response.");
    else if (response.IsSuccessStatusCode)
        // If the response is successful, perform any necessary transformations
        var responseString = await response.Content.ReadAsStringAsync().ConfigureAwait(false);
        // Example case: response string is some JSON object
        var result = JObject.Parse(responseString);  
        // Wrap the original JSON object into a new JSON object with just one key ('wrapped')
        var newResult = new JObject
            ["wrapped"] = result,
        response.Content = CreateJsonContent(newResult.ToString());
    return response;




And that's it, it should work on any api and means your custom connector will act like one api call and not need exception handling.

This is a series of short blogs designed to help find solutions for random problems before you ask, keep your eyes out for more

l also do long form and broader Power Platform blogs here


@wyattdave just want you to know this was a game changer!

@wyattdave I tried to use your code to make a custom connector, but what actions do I need to add for this connector to work?

Hi @vinny341 ,

The code needs to be added on the code tab within the custom connector wizard (second image in blog). Then update the connector and it should work.

Not sure how this is supposed to work, there are no actions or triggers on the connector and it cant be added to a flow 




Hi @dracle_sod ,

I'm confused what are you showing?

The code is added to your custom connector, so you still need to build the connector with it's inputs and outputs.

I also see http actions, the customer connector should be used instead, it's a lot more secure as the API key isn't visible within the flow 

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