JsonReaderException with MessagesRequestBuilder.GetAsync

Question

Hi,

Attempting to retrieve a particular messages results in this exception, unfortunately I can't share the message as it is confidential. Please can you advise why the Graph SDK would be attempting to parse invalid json?

Thanks,

ype: System.Text.Json.JsonReaderException
Message: Expected depth to be zero at the end of the JSON payload. There is an open JSON object or array that should be closed. LineNumber: 0 | BytePositionInLine: 247.
Source: System.Text.Json
TargetSite: Void ThrowJsonReaderException(System.Text.Json.Utf8JsonReader ByRef, System.Text.Json.ExceptionResource, Byte, System.ReadOnlySpan`1[System.Byte])
StackTrace:    at System.Text.Json.ThrowHelper.ThrowJsonReaderException(Utf8JsonReader& json, ExceptionResource resource, Byte nextByte, ReadOnlySpan`1 bytes)
   at System.Text.Json.Utf8JsonReader.ReadSingleSegment()
   at System.Text.Json.Utf8JsonReader.Read()
   at System.Text.Json.JsonDocument.Parse(ReadOnlySpan`1 utf8JsonSpan, JsonReaderOptions readerOptions, MetadataDb& database, StackRowStack& stack)
   at System.Text.Json.JsonDocument.Parse(ReadOnlyMemory`1 utf8Json, JsonReaderOptions readerOptions, Byte[] extraRentedArrayPoolBytes, PooledByteBufferWriter extraPooledByteBufferWriter)
   at System.Text.Json.JsonDocument.Parse(Stream utf8Json, JsonDocumentOptions options)
   at Microsoft.Kiota.Serialization.Json.JsonParseNodeFactory.GetRootParseNode(String contentType, Stream content)
   at Microsoft.Kiota.Abstractions.Serialization.ParseNodeProxyFactory.GetRootParseNode(String contentType, Stream content)
   at Microsoft.Kiota.Abstractions.Serialization.ParseNodeFactoryRegistry.GetRootParseNode(String contentType, Stream content)
   at Microsoft.Kiota.Http.HttpClientLibrary.HttpClientRequestAdapter.GetRootParseNode(HttpResponseMessage response)
   at Microsoft.Kiota.Http.HttpClientLibrary.HttpClientRequestAdapter.SendAsync[ModelType](RequestInformation requestInfo, ParsableFactory`1 factory, Dictionary`2 errorMapping, CancellationToken cancellationToken)
   at Microsoft.Kiota.Http.HttpClientLibrary.HttpClientRequestAdapter.SendAsync[ModelType](RequestInformation requestInfo, ParsableFactory`1 factory, Dictionary`2 errorMapping, CancellationToken cancellationToken)
   at Microsoft.Graph.Users.Item.MailFolders.Item.Messages.MessagesRequestBuilder.GetAsync(Action`1 requestConfiguration, CancellationToken cancellationToken)

Answer 1

Hi @Scott Waye

Try changing the error code snippet to the following:

var messages = await graphClient.Users["{user id}"].MailFolders["Inbox"].Messages.GetAsync((requestConfiguration) =>
{
    requestConfiguration.QueryParameters.Expand = new string[] { "attachments" };
    requestConfiguration.QueryParameters.Top = 1;
});

if (messages == null)
{
    return;
}

var pageIterator = PageIterator<Message, MessageCollectionResponse>
    .CreatePageIterator(
        graphClient,
        messages,
        // Callback executed for each item in the collection
        (msg) =>
        {
            Console.WriteLine(msg.Id);
            return true;
        },
        (req) =>
        {
            return req;
        });

await pageIterator.IterateAsync();

Hope this helps.

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