<!DOCTYPE html><htmlclass="default"lang="en"data-base="../"><head><metacharset="utf-8"/><metahttp-equiv="x-ua-compatible"content="IE=edge"/><title>createDecoder | Documentation</title><metaname="description"content="Documentation for Documentation"/><metaname="viewport"content="width=device-width, initial-scale=1"/><linkrel="stylesheet"href="../assets/style.css"/><linkrel="stylesheet"href="../assets/highlight.css"/><scriptdefersrc="../assets/main.js"></script><scriptasyncsrc="../assets/icons.js"id="tsd-icons-script"></script><scriptasyncsrc="../assets/search.js"id="tsd-search-script"></script><scriptasyncsrc="../assets/navigation.js"id="tsd-nav-script"></script><scriptasyncsrc="../assets/hierarchy.js"id="tsd-hierarchy-script"></script></head><body><script>document.documentElement.dataset.theme=localStorage.getItem("tsd-theme")||"os";document.body.style.display="none";setTimeout(()=>window.app?app.showPage():document.body.style.removeProperty("display"),500)</script><headerclass="tsd-page-toolbar"><divclass="tsd-toolbar-contents container"><ahref="../index.html"class="title">Documentation</a><divid="tsd-toolbar-links"></div><buttonid="tsd-search-trigger"class="tsd-widget"aria-label="Search"><svgwidth="16"height="16"viewBox="0 0 16 16"fill="none"aria-hidden="true"><usehref="../assets/icons.svg#icon-search"></use></svg></button><dialogid="tsd-search"aria-label="Search"><inputrole="combobox"id="tsd-search-input"aria-controls="tsd-search-results"aria-autocomplete="list"aria-expanded="true"autocapitalize="off"autocomplete="off"placeholder="Search the docs"maxLength="100"/><ulrole="listbox"id="tsd-search-results"></ul><divid="tsd-search-status"aria-live="polite"aria-atomic="true"><div>Preparing search index...</div></div></dialog><ahref="#"class="tsd-widget menu"id="tsd-toolbar-menu-trigger"data-toggle="menu"aria-label="Menu"><svgwidth="16"height="16"viewBox="0 0 16 16"fill="none"aria-hidden="true"><usehref="../assets/icons.svg#icon-menu"></use></svg></a></div></header><divclass="container container-main"><divclass="col-content"><divclass="tsd-page-title"><ulclass="tsd-breadcrumb"aria-label="Breadcrumb"><li><ahref="../modules/_waku_message-encryption.html">@waku/message-encryption</a></li><li><ahref="../modules/_waku_message-encryption.ecies.html">ecies</a></li><li><ahref=""aria-current="page">createDecoder</a></li></ul><h1>Function createDecoder</h1></div><sectionclass="tsd-panel"><ulclass="tsd-signatures"><liclass=""><divclass="tsd-signature tsd-anchor-link"id="createdecoder"><spanclass="tsd-kind-call-signature">createDecoder</span><spanclass="tsd-signature-symbol">(</span><br/><spanclass="tsd-kind-parameter">contentTopic</span><spanclass="tsd-signature-symbol">:</span><spanclass="tsd-signature-type">string</span><spanclass="tsd-signature-symbol">,</span><br/><spanclass="tsd-kind-parameter">routingInfo</span><spanclass="tsd-signature-symbol">:</span><ahref="../interfaces/_waku_interfaces.IRoutingInfo.html"class="tsd-signature-type tsd-kind-interface">IRoutingInfo</a><spanclass="tsd-signature-symbol">,</span><br/><spanclass="tsd-kind-parameter">privateKey</span><spanclass="tsd-signature-symbol">:</span><spanclass="tsd-signature-type">Uint8Array</span><spanclass="tsd-signature-symbol">,</span><br/><spanclass="tsd-signature-symbol">)</span><spanclass="tsd-signature-symbol">:</span><spanclass="tsd-signature-type">Decoder</span><ahref="#createdecoder"aria-label="Permalink"class="tsd-anchor-icon"><svgviewBox="0 0 24 24"aria-hidden="true"><usehref="../assets/icons.svg#icon-anchor"></use></svg></a></div><divclass="tsd-description"><divclass="tsd-comment tsd-typography"><p>Creates a decoder that decrypts messages using ECIES, using the given private
key as defined in <ahref="https://rfc.vac.dev/spec/26/">26/WAKU2-PAYLOAD</a>.</p>
<p>A decoder is used to decode messages from the <ahref="https://rfc.vac.dev/spec/14/">14/WAKU2-MESSAGE</a>
format when received from the Waku network. The resulting decoder can then be
pass to @waku/interfaces!IReceiver.subscribe to automatically decrypt and
decode incoming messages.</p>
</div><divclass="tsd-parameters"><h4class="tsd-parameters-title">Parameters</h4><ulclass="tsd-parameter-list"><li><span><spanclass="tsd-kind-parameter">contentTopic</span>: <spanclass="tsd-signature-type">string</span></span><divclass="tsd-comment tsd-typography"><p>The resulting decoder will only decode messages with this content topic.</p>
</div><divclass="tsd-comment tsd-typography"></div></li><li><span><spanclass="tsd-kind-parameter">routingInfo</span>: <ahref="../interfaces/_waku_interfaces.IRoutingInfo.html"class="tsd-signature-type tsd-kind-interface">IRoutingInfo</a></span></li><li><span><spanclass="tsd-kind-parameter">privateKey</span>: <spanclass="tsd-signature-type">Uint8Array</span></span><divclass="tsd-comment tsd-typography"><p>The private key used to decrypt the message.</p>
