How to Decompress GZip-Encoded JSON Responses from an HTTPClient in WCF?

Extract GZip stream from HTTPClient response

Question:

How to decompress GZip encoded JSON response from API using WCF and HttpClient?

Answer:

To decompress a GZip encoded response using HttpClient:

1. Enable decompression function and instantiate HttpClientHandler:

<code class="language-csharp">HttpClientHandler handler = new HttpClientHandler()
{
    AutomaticDecompression = DecompressionMethods.GZip | DecompressionMethods.Deflate
};</code>

2. Use handler to create an HttpClient instance:

<code class="language-csharp">using (var client = new HttpClient(handler))
{
    // 您的代码
}</code>

Important Tips:

If using .Net Core 2.1 or higher, it is recommended to use IHttpClientFactory and inject the client with handler configuration. For example:

<code class="language-csharp">services.AddHttpClient<XApiClient>().ConfigurePrimaryHttpMessageHandler(() => new HttpClientHandler
{
    AutomaticDecompression = DecompressionMethods.GZip | DecompressionMethods.Deflate
});</code>

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