Traffic Search Keywords

Ramco Ramco

I have below code but it is giving error on this line

dynamic videoListData = JsonConvert.DeserializeObject(videoListResponse.Content);

	Name	Value	Type
?	$exception	{"Unexpected character encountered while parsing value: <. Path '', line 0, position 0."}	Newtonsoft.Json.JsonReaderException

var videoIds = new List();
var client = new RestClient("googleapis.com/youtube/analytics/v1/reports");
var request = new RestRequest("query", Method.GET);

request.AddParameter("ids", "channel==UCg3Zpk-m_nNoaVw");
request.AddParameter("metrics", "views");
request.AddParameter("dimensions", "insightTrafficSourceType,insightTrafficSourceDetail");
request.AddParameter("key", "AIG8");
request.AddParameter("type", "video");
request.AddParameter("maxResults", "50");
do
{
    var videoListResponse = client.Execute(request);
    dynamic videoListData = JsonConvert.DeserializeObject(videoListResponse.Content);

    foreach (var item in videoListData.items)
    {
        videoIds.Add(item.id.videoId.ToString());
    }

    // Check if there are more pages of results
    if (videoListData.nextPageToken != null)
    {
        request.AddParameter("pageToken", videoListData.nextPageToken);
    }
    else
    {
        break; // No more pages, exit the loop
    }
} while (true);

3 Replies

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Ramco Ramco2y ago

Hi All

It is giving below messsage

Error 404 (Not Found)!!1 404. That’s an error.

The requested URL /youtube/analytics/v1/reports/query was not found on this server. That’s all we know.

Thanks

Jayraj Chhaya2y ago
The error message "Unexpected character encountered while parsing value" suggests that there is an issue with the JSON data being returned by the API. It seems that the response content is not valid JSON.

To troubleshoot this issue, you can try the following steps:
1. Check the API documentation: Make sure you are using the correct endpoint and parameters for the YouTube Analytics API. Verify that the response format is indeed JSON.
2. Inspect the response content: Print the videoListResponse.Content to the console or log it to see the actual response content. This will help you identify any unexpected characters or formatting issues.
3. Validate the JSON: Use an online JSON validator or a JSON parsing library to validate the response content. This will help you determine if the JSON is valid or if there are any syntax errors.
4. Handle potential errors: Wrap the deserialization code in a try-catch block to catch any exceptions that may occur during the deserialization process. This will allow you to handle the error gracefully and provide a more meaningful error message to the user.
```
try
{
    dynamic videoListData = JsonConvert.DeserializeObject(videoListResponse.Content);
    // Rest of your code
}
catch (JsonReaderException ex)
{
    Console.WriteLine("Error deserializing JSON data: " + ex.Message);
    // Handle the error or provide appropriate feedback to the user
}
```
Naimish Makwana2y ago
The error message you’re seeing, Unexpected character encountered while parsing value: <. Path '', line 0, position 0, is typically thrown by JsonConvert.DeserializeObject when it’s trying to parse a string that isn’t valid JSON.

In your case, it seems like the response from the API call (videoListResponse.Content) is not in valid JSON format. This could be due to a few reasons:
1. The API endpoint might not be returning a JSON response. The URL you’re using ("googleapis.com/youtube/analytics/v1/reports") seems to be incorrect. The correct base URL for YouTube Data API v3 should be "https://www.googleapis.com/youtube/v3/". Please check the API documentation and ensure you’re using the correct endpoint.
2. There might be an issue with the API request, such as an incorrect parameter or header, causing the API to return an error page (often in HTML, hence the < character) instead of the expected JSON response.
3. The API might be returning a JSON response, but the structure of the response might be different from what you’re expecting (i.e., it doesn’t contain items or nextPageToken properties).
To debug this, you can try printing out videoListResponse.Content before attempting to deserialize it. This will allow you to see exactly what’s being returned by the API call.
```
do
{
    var videoListResponse = client.Execute(request);
    Console.WriteLine(videoListResponse.Content);  // Add this line
    dynamic videoListData = JsonConvert.DeserializeObject(videoListResponse.Content);

    // Rest of your code...
} while (true);
```
This should give you a better idea of what’s going wrong. If the output is not valid JSON, you’ll need to adjust your API request or use the correct API endpoint. If the JSON structure is different from what you’re expecting, you’ll need to adjust your code to correctly navigate the JSON response.

Thanks