Nullability of reference types in return type of 'ValueTask<object> APIKeyEndpointFilter.InvokeAsync(EndpointFilterInvocationContext context, EndpointFilterDelegate next)' doesn't match implicitly implemented member 'ValueTask<object?> IEndpointFilter.InvokeAsync(EndpointFilterInvocationContext context, EndpointFilterDelegate next)'.

Possible null reference argument for parameter 'connectionString' in 'IHealthChecksBuilder NpgSqlHealthCheckBuilderExtensions.AddNpgSql(IHealthChecksBuilder builder, string connectionString, string healthQuery = "SELECT 1;", Action<NpgsqlConnection>? configure = null, string? name = null, HealthStatus? failureStatus = null, IEnumerable<string>? tags = null, TimeSpan? timeout = null)'.

Dereference of a possibly null reference.

Possible null reference return.

Dereference of a possibly null reference.

Dereference of a possibly null reference.

Possible null reference argument for parameter 'path1' in 'string Path.Combine(string path1, string path2)'.

Dereference of a possibly null reference.

Possible null reference argument for parameter 'path1' in 'string Path.Combine(string path1, string path2)'.