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2018-09-26 05:30:33 +00:00
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docs/examples/05_read_storage/index.html
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@@ -370,39 +370,39 @@
<section class="normal markdown-section">
<h1 id="read-storage">Read storage</h1>
<p>Many important variable are available through the storage API. This example shows how to call a few of those APIs.</p>
<pre><code class="lang-javascript"><span class="hljs-keyword">const</span> Api = <span class="hljs-built_in">require</span>(<span class="hljs-string">&apos;@polkadot/api&apos;</span>).default
<span class="hljs-keyword">const</span> WsProvider = <span class="hljs-built_in">require</span>(<span class="hljs-string">&apos;@polkadot/api-provider/ws&apos;</span>).default
<span class="hljs-keyword">const</span> storage = <span class="hljs-built_in">require</span>(<span class="hljs-string">&apos;@polkadot/storage&apos;</span>).default
<span class="hljs-keyword">const</span> BN = <span class="hljs-built_in">require</span>(<span class="hljs-string">&apos;bn.js&apos;</span>)
<p>Many important variables are available through the storage API. This example shows how to call a few of those APIs.</p>
<pre><code class="lang-javascript"><span class="hljs-keyword">const</span> BN = <span class="hljs-built_in">require</span>(<span class="hljs-string">&apos;bn.js&apos;</span>);
<span class="hljs-keyword">const</span> Api = <span class="hljs-built_in">require</span>(<span class="hljs-string">&apos;@polkadot/api&apos;</span>).default;
<span class="hljs-keyword">const</span> WsProvider = <span class="hljs-built_in">require</span>(<span class="hljs-string">&apos;@polkadot/api-provider/ws&apos;</span>).default;
<span class="hljs-keyword">const</span> storage = <span class="hljs-built_in">require</span>(<span class="hljs-string">&apos;@polkadot/storage&apos;</span>).default;
<span class="hljs-keyword">const</span> provider = <span class="hljs-keyword">new</span> WsProvider(<span class="hljs-string">&apos;ws://127.0.0.1:9944&apos;</span>)
<span class="hljs-keyword">const</span> api = <span class="hljs-keyword">new</span> Api(provider)
<span class="hljs-keyword">const</span> provider = <span class="hljs-keyword">new</span> WsProvider(<span class="hljs-string">&apos;ws://127.0.0.1:9944&apos;</span>);
<span class="hljs-keyword">const</span> api = <span class="hljs-keyword">new</span> Api(provider);
<span class="hljs-keyword">async</span> <span class="hljs-function"><span class="hljs-keyword">function</span> <span class="hljs-title">getAccountIndex</span> (<span class="hljs-params">address</span>) </span>{
<span class="hljs-keyword">return</span> api.state.getStorage([storage.system.public.accountIndexOf, address])
<span class="hljs-keyword">return</span> api.state.getStorage([storage.system.public.accountIndexOf, address]);
}
<span class="hljs-keyword">async</span> <span class="hljs-function"><span class="hljs-keyword">function</span> <span class="hljs-title">getValidators</span> (<span class="hljs-params"></span>) </span>{
<span class="hljs-keyword">return</span> api.state.getStorage([storage.session.public.validators])
<span class="hljs-keyword">return</span> api.state.getStorage([storage.session.public.validators]);
}
<span class="hljs-keyword">async</span> <span class="hljs-function"><span class="hljs-keyword">function</span> <span class="hljs-title">getBlockPeriod</span> (<span class="hljs-params"></span>) </span>{
<span class="hljs-keyword">return</span> api.state.getStorage([storage.timestamp.public.blockPeriod])
<span class="hljs-keyword">return</span> api.state.getStorage([storage.timestamp.public.blockPeriod]);
}
<span class="hljs-keyword">async</span> <span class="hljs-function"><span class="hljs-keyword">function</span> <span class="hljs-title">main</span> (<span class="hljs-params"></span>) </span>{
<span class="hljs-keyword">const</span> address = <span class="hljs-string">&apos;5GoKvZWG5ZPYL1WUovuHW3zJBWBP5eT8CbqjdRY4Q6iMaDtZ&apos;</span>
<span class="hljs-keyword">const</span> validators = <span class="hljs-keyword">await</span> getValidators()
<span class="hljs-keyword">const</span> index = <span class="hljs-keyword">await</span> getAccountIndex(address)
<span class="hljs-keyword">const</span> blockPeriod = <span class="hljs-keyword">await</span> getBlockPeriod()
<span class="hljs-keyword">const</span> address = <span class="hljs-string">&apos;5GoKvZWG5ZPYL1WUovuHW3zJBWBP5eT8CbqjdRY4Q6iMaDtZ&apos;</span>;
<span class="hljs-keyword">const</span> validators = <span class="hljs-keyword">await</span> getValidators();
<span class="hljs-keyword">const</span> index = <span class="hljs-keyword">await</span> getAccountIndex(address);
<span class="hljs-keyword">const</span> blockPeriod = <span class="hljs-keyword">await</span> getBlockPeriod();
<span class="hljs-built_in">console</span>.log(<span class="hljs-string">`BlockPeriod: <span class="hljs-subst">${new BN(blockPeriod).toString(10)}</span> seconds`</span>)
<span class="hljs-built_in">console</span>.log(<span class="hljs-string">`Account Index of <span class="hljs-subst">${address}</span>: <span class="hljs-subst">${index.toString(10)}</span>`</span>)
<span class="hljs-built_in">console</span>.log(<span class="hljs-string">&apos;Current validators&apos;</span>, validators)
<span class="hljs-built_in">console</span>.log(<span class="hljs-string">`BlockPeriod: <span class="hljs-subst">${new BN(blockPeriod).toString(10)}</span> seconds`</span>);
<span class="hljs-built_in">console</span>.log(<span class="hljs-string">`Account Index of <span class="hljs-subst">${address}</span>: <span class="hljs-subst">${index.toString(10)}</span>`</span>);
<span class="hljs-built_in">console</span>.log(<span class="hljs-string">&apos;Current validators&apos;</span>, validators);
}
main().finally(_ =&gt; process.exit())
main().finally(_ =&gt; process.exit());
</code></pre>
@@ -447,7 +447,7 @@ main().finally(_ =&gt; process.exit())
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