34 lines
4.2 KiB
HTML
34 lines
4.2 KiB
HTML
<!doctype html><meta charset=utf-8><meta name=viewport content="width=device-width,initial-scale=1"><link rel=stylesheet href=https://cdnjs.cloudflare.com/ajax/libs/github-markdown-css/5.1.0/github-markdown-dark.css><style>.markdown-body{box-sizing:border-box;min-width:200px;max-width:980px;margin:0 auto;padding:45px}@media(max-width:767px){.markdown-body{padding:15px}}</style><body class=markdown-body><a href=index>Index</a><h1><a id=user-content-experiment-go class=anchor aria-hidden=true href=#experiment-go><span aria-hidden=true class="octicon octicon-link"></span></a>Experiment Go</h1><p>There come a time when you need to experiment new things, new style, new approach.
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So this post serves as it is named.<h1><a id=user-content-design-api-by-trimming-down-the-interfacestruct-or-whatever class=anchor aria-hidden=true href=#design-api-by-trimming-down-the-interfacestruct-or-whatever><span aria-hidden=true class="octicon octicon-link"></span></a>Design API by trimming down the interface/struct or whatever</h1><p>Instead of:<div class="highlight highlight-source-go"><pre><span class=pl-k>type</span> <span class=pl-smi>Client</span> <span class=pl-k>interface</span> {
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<span class=pl-c1>GetUser</span>()
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<span class=pl-c1>AddUser</span>()
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<span class=pl-c1>GetAccount</span>()
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<span class=pl-c1>RemoveAccount</span>()
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}
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<span class=pl-c>// c is Client</span>
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<span class=pl-s1>c</span>.<span class=pl-en>GetUser</span>()
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<span class=pl-s1>c</span>.<span class=pl-en>RemoveAccount</span>()</pre></div><p>Try:<div class="highlight highlight-source-go"><pre><span class=pl-k>type</span> <span class=pl-smi>Client</span> <span class=pl-k>struct</span> {
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<span class=pl-c1>User</span> <span class=pl-smi>ClientUser</span>
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<span class=pl-c1>Account</span> <span class=pl-smi>ClientAccount</span>
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}
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<span class=pl-k>type</span> <span class=pl-smi>ClientUser</span> <span class=pl-k>interface</span> {
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<span class=pl-c1>Get</span>()
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<span class=pl-c1>Add</span>()
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}
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<span class=pl-k>type</span> <span class=pl-smi>ClientAccount</span> <span class=pl-k>interface</span> {
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<span class=pl-c1>Get</span>()
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<span class=pl-c1>Remove</span>()
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}
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<span class=pl-c>// c is Client</span>
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<span class=pl-s1>c</span>.<span class=pl-c1>User</span>.<span class=pl-en>Get</span>()
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<span class=pl-s1>c</span>.<span class=pl-c1>Account</span>.<span class=pl-en>Remove</span>()</pre></div><p>The difference is <code>c.GetUser()</code> -> <code>c.User.Get()</code>.<p>For example we have client which connect to bank.
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There are many functions like <code>GetUser</code>, <code>GetTransaction</code>, <code>VerifyAccount</code>, ...
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So split big client to many children, each child handle single aspect, like user or transaction.<p>My concert is we replace an interface with a struct which contains multiple interfaces aka children.
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I don't know if this is the right call.<p>This pattern is used by <a href=https://github.com/google/go-github>google/go-github</a>.<h2><a id=user-content-find-alternative-to-grpcgrpc-go class=anchor aria-hidden=true href=#find-alternative-to-grpcgrpc-go><span aria-hidden=true class="octicon octicon-link"></span></a>Find alternative to <a href=https://github.com/grpc/grpc-go>grpc/grpc-go</a></h2><p>Why?
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<a href="https://github.com/grpc/grpc-go/issues?q=is%3Aissue+compatibility+is%3Aclosed">See for yourself</a>.
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Also read <a href=https://go.dev/blog/protobuf-apiv2 rel=nofollow>A new Go API for Protocol Buffers</a> to know why <code>v1.20.0</code> is <code>v2</code>.<p>Currently there are some:<ul><li><a href=https://github.com/bufbuild/connect-go>bufbuild/connect-go</a>. Comming from buf, trust worthy but need time to make it match feature parity with grpc-go.<li><a href=https://github.com/twitchtv/twirp>twitchtv/twirp</a><li><a href=https://github.com/storj/drpc>storj/drpc</a></ul><h1><a id=user-content-thanks class=anchor aria-hidden=true href=#thanks><span aria-hidden=true class="octicon octicon-link"></span></a>Thanks</h1><ul><li><a href=https://blog.gopheracademy.com/advent-2019/api-clients-humans/ rel=nofollow>API Clients for Humans</a></ul><a href=mailto:hauvipapro+posts@gmail.com>Feel free to ask me via email</a>
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