2357 lines
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2357 lines
60 KiB
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<title>RPC · Polkadot API Book</title>
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<li class="header">Packages</li>
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<li class="chapter " data-level="1.1" data-path="./">
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<a href="./">
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Introduction
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</a>
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<li class="chapter " data-level="1.2" data-path="api/">
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<a href="api/">
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api
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</a>
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<ul class="articles">
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<li class="chapter " data-level="1.2.1" data-path="api/classes/_promise_index_.apipromise.html">
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<a href="api/classes/_promise_index_.apipromise.html">
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ApiPromise
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</a>
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</li>
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<li class="chapter " data-level="1.2.2" data-path="api/classes/_rx_index_.apirx.html">
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<a href="api/classes/_rx_index_.apirx.html">
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ApiRx
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</a>
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</li>
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</ul>
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</li>
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<li class="chapter " data-level="1.3" data-path="rpc-provider/">
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<a href="rpc-provider/">
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rpc-provider
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</a>
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<ul class="articles">
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HttpProvider
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</li>
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<li class="chapter " data-level="1.3.2" data-path="rpc-provider/classes/_ws_index_.wsprovider.html">
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<a href="rpc-provider/classes/_ws_index_.wsprovider.html">
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WsProvider
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</a>
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</li>
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</ul>
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<li class="chapter " data-level="1.4" data-path="types/">
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<a href="types/">
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types (codec implementation)
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</a>
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</li>
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<li class="header">Interfaces</li>
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<li class="chapter active" data-level="2.1" data-path="METHODS_RPC.html">
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<a href="METHODS_RPC.html">
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RPC
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</a>
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</li>
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<li class="chapter " data-level="2.2" data-path="METHODS_STORAGE.html">
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<a href="METHODS_STORAGE.html">
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Chain state (runtime)
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</a>
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</li>
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<li class="chapter " data-level="2.3" data-path="METHODS_EXTRINSICS.html">
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<a href="METHODS_EXTRINSICS.html">
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Extrinsics (runtime)
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</a>
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</li>
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<li class="chapter " data-level="2.4" data-path="METHODS_EVENTS.html">
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<a href="METHODS_EVENTS.html">
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Events (runtime)
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</a>
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</li>
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<li class="header">Examples</li>
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<li class="chapter " data-level="3.1" data-path="examples/promise/">
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<a href="examples/promise/">
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ApiPromise
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</a>
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<ul class="articles">
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<li class="chapter " data-level="3.1.1" data-path="examples/promise/01_simple_connect/">
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<a href="examples/promise/01_simple_connect/">
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Simple connect
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</a>
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</li>
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<li class="chapter " data-level="3.1.2" data-path="examples/promise/02_listen_to_blocks/">
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<a href="examples/promise/02_listen_to_blocks/">
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Listen to blocks
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</a>
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</li>
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<li class="chapter " data-level="3.1.3" data-path="examples/promise/03_listen_to_balance_change/">
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<a href="examples/promise/03_listen_to_balance_change/">
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Listen to balance change
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</a>
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</li>
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<li class="chapter " data-level="3.1.4" data-path="examples/promise/04_unsubscribe/">
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Unsubscribe from listening
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</li>
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<li class="chapter " data-level="3.1.5" data-path="examples/promise/05_read_storage/">
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<a href="examples/promise/05_read_storage/">
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Read chain state
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</a>
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</li>
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<li class="chapter " data-level="3.1.6" data-path="examples/promise/06_make_transfer/">
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<a href="examples/promise/06_make_transfer/">
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Make a transfer
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</a>
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</li>
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<li class="chapter " data-level="3.1.7" data-path="examples/promise/08_system_events/">
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<a href="examples/promise/08_system_events/">
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Display system events
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</a>
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</li>
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<li class="chapter " data-level="3.1.8" data-path="examples/promise/09_transfer_events/">
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<a href="examples/promise/09_transfer_events/">
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Transaction with events
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</a>
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</li>
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<li class="chapter " data-level="3.1.9" data-path="examples/promise/10_upgrade_chain/">
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<a href="examples/promise/10_upgrade_chain/">
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Upgrade via sudo
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</a>
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</li>
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</ul>
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</li>
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<li class="chapter " data-level="3.2" data-path="examples/rx/">
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<a href="examples/rx/">
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ApiRx
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</a>
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<ul class="articles">
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<li class="chapter " data-level="3.2.1" data-path="examples/rx/01_simple_connect/">
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<a href="examples/rx/01_simple_connect/">
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Simple connect
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</a>
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</li>
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<li class="chapter " data-level="3.2.2" data-path="examples/rx/02_listen_to_blocks/">
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<a href="examples/rx/02_listen_to_blocks/">
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Listen to blocks
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</a>
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</li>
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<li class="chapter " data-level="3.2.3" data-path="examples/rx/03_listen_to_balance_change/">
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<a href="examples/rx/03_listen_to_balance_change/">
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Listen to balance change
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</a>
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</li>
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<li class="chapter " data-level="3.2.4" data-path="examples/rx/04_unsubscribe/">
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<a href="examples/rx/04_unsubscribe/">
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Unsubscribe from listening
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</a>
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</li>
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<li class="chapter " data-level="3.2.5" data-path="examples/rx/05_read_storage/">
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<a href="examples/rx/05_read_storage/">
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Read chain state
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</a>
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</li>
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<li class="chapter " data-level="3.2.6" data-path="examples/rx/06_make_transfer/">
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<a href="examples/rx/06_make_transfer/">
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Make a transfer
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</a>
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</li>
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<li class="chapter " data-level="3.2.7" data-path="examples/rx/08_system_events/">
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<a href="examples/rx/08_system_events/">
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Display system events
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</a>
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</li>
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<li class="chapter " data-level="3.2.8" data-path="examples/rx/09_transfer_events/">
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<a href="examples/rx/09_transfer_events/">
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Transaction with events
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</a>
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</li>
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<li class="chapter " data-level="3.2.9" data-path="examples/rx/10_upgrade_chain/">
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<a href="examples/rx/10_upgrade_chain/">
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Upgrade via sudo
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</a>
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</li>
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</ul>
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<li class="chapter " data-level="4.1" data-path="types/classes/_accountid_.accountid.html">
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<!-- Title -->
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<h1>
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<i class="fa fa-circle-o-notch fa-spin"></i>
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<a href="." >RPC</a>
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</h1>
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</div>
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<div class="page-wrapper" tabindex="-1" role="main">
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<section class="normal markdown-section">
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<h2 id="json-rpc"><a id="top" style="text-decoration: none;">JSON-RPC</a></h2>
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<p><em>The following sections contain RPC methods that are Remote Calls available by default and allow you to interact with the actual node, query, and submit. The RPCs are provided by Substrate itself.</em></p>
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<ul>
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<li><p><strong><a href="#author">author</a></strong></p>
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</li>
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<li><p><strong><a href="#chain">chain</a></strong></p>
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</li>
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<li><p><strong><a href="#state">state</a></strong></p>
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</li>
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<li><p><strong><a href="#system">system</a></strong></p>
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</li>
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</ul>
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<hr>
|
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<p><a href="#top" style="float: right; font-size: 1.6rem; font-weight: bold;">Back To Top</a></p>
|
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<h3 id="author"><a id="author"></a>author</h3>
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<p><em>Authoring of network items</em></p>
|
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<p>▸ <strong>pendingExtrinsics</strong>(): <code>PendingExtrinsics</code></p>
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<ul>
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<li><strong>summary</strong>: Returns all pending extrinsics, potentially grouped by sender</li>
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</ul>
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<p>▸ <strong>submitAndWatchExtrinsic</strong>(extrinsic: <code>Extrinsic</code>): <code>ExtrinsicStatus</code></p>
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<ul>
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<li><strong>summary</strong>: Subscribe and watch an extrinsic until unsubscribed</li>
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</ul>
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<p>▸ <strong>submitExtrinsic</strong>(extrinsic: <code>Extrinsic</code>): <code>Hash</code></p>
|
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<ul>
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<li><strong>summary</strong>: Submit a fully formatted extrinsic for block inclusion</li>
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</ul>
|
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<hr>
|
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<p><a href="#top" style="float: right; font-size: 1.6rem; font-weight: bold;">Back To Top</a></p>
|
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<h3 id="chain"><a id="chain"></a>chain</h3>
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<p><em>Retrieval of chain data</em></p>
|
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<p>▸ <strong>getBlock</strong>(hash?: <code>Hash</code>): <code>SignedBlock</code></p>
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<ul>
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<li><strong>summary</strong>: Get header and body of a relay chain block</li>
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</ul>
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<p>▸ <strong>getBlockHash</strong>(blockNumber?: <code>BlockNumber</code>): <code>Hash</code></p>
|
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<ul>
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<li><strong>summary</strong>: Get the block hash for a specific block</li>
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</ul>
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<p>▸ <strong>getFinalisedHead</strong>(): <code>Hash</code></p>
|
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<ul>
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<li><strong>summary</strong>: Get hash of the last finalised block in the canon chain</li>
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</ul>
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<p>▸ <strong>getHeader</strong>(hash?: <code>Hash</code>): <code>Header</code></p>
|
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<ul>
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<li><strong>summary</strong>: Retrieves the header for a specific block</li>
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</ul>
|
|
<p>▸ <strong>getRuntimeVersion</strong>(hash?: <code>Hash</code>): <code>RuntimeVersion</code></p>
|
|
<ul>
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<li><strong>summary</strong>: Get the runtime version (alias of state_getRuntimeVersion)</li>
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</ul>
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<p>▸ <strong>subscribeFinalisedHeads</strong>(): <code>Header</code></p>
|
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<ul>
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<li><strong>summary</strong>: Retrieves the best finalised header via subscription</li>
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</ul>
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<p>▸ <strong>subscribeNewHead</strong>(): <code>Header</code></p>
|
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<ul>
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<li><strong>summary</strong>: Retrieves the best header via subscription</li>
|
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</ul>
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<p>▸ <strong>subscribeRuntimeVersion</strong>(): <code>RuntimeVersion</code></p>
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<ul>
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<li><strong>summary</strong>: Retrieves the runtime version via subscription</li>
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</ul>
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<hr>
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<p><a href="#top" style="float: right; font-size: 1.6rem; font-weight: bold;">Back To Top</a></p>
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<h3 id="state"><a id="state"></a>state</h3>
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<p><em>Query of state</em></p>
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<p>▸ <strong>call</strong>(method: <code>Text</code>, data: <code>Bytes</code>, block?: <code>Hash</code>): <code>Bytes</code></p>
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<ul>
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<li><strong>summary</strong>: Perform a call to a builtin on the chain</li>
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</ul>
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<p>▸ <strong>getMetadata</strong>(block?: <code>Hash</code>): <code>Metadata</code></p>
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<ul>
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<li><strong>summary</strong>: Returns the runtime metadata</li>
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</ul>
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<p>▸ <strong>getRuntimeVersion</strong>(hash?: <code>Hash</code>): <code>RuntimeVersion</code></p>
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<ul>
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<li><strong>summary</strong>: Get the runtime version</li>
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</ul>
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<p>▸ <strong>getStorage</strong>(key: <code>StorageKey</code>, block?: <code>Hash</code>): <code>StorageData</code></p>
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<ul>
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<li><strong>summary</strong>: Retrieves the storage for a key</li>
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</ul>
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<p>▸ <strong>getStorageHash</strong>(key: <code>StorageKey</code>, block?: <code>Hash</code>): <code>Hash</code></p>
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<ul>
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<li><strong>summary</strong>: Retrieves the storage hash</li>
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</ul>
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<p>▸ <strong>getStorageSize</strong>(key: <code>StorageKey</code>, block?: <code>Hash</code>): <code>u64</code></p>
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<ul>
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<li><strong>summary</strong>: Retrieves the storage size</li>
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</ul>
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<p>▸ <strong>queryStorage</strong>(keys: <code>Vec<StorageKey></code>, startBlock: <code>Hash</code>, block?: <code>Hash</code>): <code>Vec<StorageChangeSet></code></p>
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<ul>
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<li><strong>summary</strong>: Query historical storage entries (by key) starting from a start block</li>
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</ul>
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<p>▸ <strong>subscribeStorage</strong>(keys: <code>Vec<StorageKey></code>): <code>StorageChangeSet</code></p>
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<ul>
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<li><strong>summary</strong>: Subscribes to storage changes for the provided keys</li>
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</ul>
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<hr>
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<p><a href="#top" style="float: right; font-size: 1.6rem; font-weight: bold;">Back To Top</a></p>
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<h3 id="system"><a id="system"></a>system</h3>
|
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<p><em>Methods to retrieve system info</em></p>
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<p>▸ <strong>chain</strong>(): <code>Text</code></p>
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<ul>
|
|
<li><strong>summary</strong>: Retrieves the chain</li>
|
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</ul>
|
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<p>▸ <strong>health</strong>(): <code>Health</code></p>
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<ul>
|
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<li><strong>summary</strong>: Return health status of the node</li>
|
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</ul>
|
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<p>▸ <strong>name</strong>(): <code>Text</code></p>
|
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<ul>
|
|
<li><strong>summary</strong>: Retrieves the node name</li>
|
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</ul>
|
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<p>▸ <strong>peers</strong>(): <code>Vec<PeerInfo></code></p>
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<ul>
|
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<li><strong>summary</strong>: Returns the currently connected peers</li>
|
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</ul>
|
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<p>▸ <strong>properties</strong>(): <code>ChainProperties</code></p>
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<ul>
|
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<li><strong>summary</strong>: Get a custom set of properties as a JSON object, defined in the chain spec</li>
|
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</ul>
|
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<p>▸ <strong>version</strong>(): <code>Text</code></p>
|
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<ul>
|
|
<li><strong>summary</strong>: Retrieves the version of the node</li>
|
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</ul>
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</section>
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