Downloading and parsing large JSON files

<p>I was wondering what is most efficient (not wasting memory) and fastest way to download a JSON file and parse it.</p> <p>I looked into the json.Decoder but are they any other solutions out there?</p> <p>Thanks in advance.</p> <hr/>**评论：**<br/><br/>raff99: <pre><p>Assuming your JSON file is large because it contains long list of objects, you do something like this:</p> <p><a href="https://golang.org/pkg/encoding/json/#example_Decoder_Decode_stream" rel="nofollow">https://golang.org/pkg/encoding/json/#example_Decoder_Decode_stream</a></p> <p>Basically you you find the beginning of the array using the streaming API and then use json.Decoder to decode the array elements one by one.</p></pre>dgryski: <pre><p>There are a number of third-party JSON decoders, with various trade-offs: <a href="https://github.com/pquerna/ffjson" rel="nofollow">https://github.com/pquerna/ffjson</a> , <a href="https://github.com/mailru/easyjson" rel="nofollow">https://github.com/mailru/easyjson</a> , but I would benchmark first to determine that json.Decoder isn&#39;t performing well enough before switching to one of them.</p></pre>