一个HttpClientHandler是否应该与多个HttpClient对象一起使用？

Question

I have multiple long-lived HttpClient objects connecting to different endpoints. They use the same AutomaticDecompression setting. Should I create a separate HttpClientHandler for each one, or is it fine to share the handler instance between them all?

HttpClientHandler httpHandler = new HttpClientHandler
{
    AutomaticDecompression = DecompressionMethods.GZip | DecompressionMethods.Deflate
};

HttpClient offerClient = new HttpClient(httpHandler, true);
offerClient.DefaultRequestHeaders.Add("Accept-Content", "gzip");

HttpClient quoteClient = new HttpClient(httpHandler, true);
quoteClient.DefaultRequestHeaders.Add("Accept-Content", "gzip");

HttpClient ordersClient = new HttpClient(httpHandler, true);
ordersClient.DefaultRequestHeaders.Add("Accept-Content", "gzip");

Answer 1

Conventional wisdom has it that a singleton HttpClient is the way to go, so sharing the same handler is certainly OK. Depending on how your DI is configured, I would be tempted to create a GZipHttpClient deriving from HttpClient and just pass the correctly-configured handler straight to the base ctor, and then wire that up as a singleton and request that specific Type (as opposed to HttpClient ) via DI wherever you need this gzip stuff.