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cic-staff-client/docs/compodoc/injectables/TokenService.html

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<!doctype html>
<html class="no-js" lang="">
<head>
<meta charset="utf-8">
<meta http-equiv="x-ua-compatible" content="ie=edge">
<title>CICADA</title>
<meta name="description" content="">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="icon" type="image/x-icon" href="../images/favicon.ico">
<link rel="stylesheet" href="../styles/style.css">
</head>
<body>
<div class="navbar navbar-default navbar-fixed-top visible-xs">
<a href="../" class="navbar-brand">CICADA</a>
<button type="button" class="btn btn-default btn-menu ion-ios-menu" id="btn-menu"></button>
</div>
<div class="xs-menu menu" id="mobile-menu">
<div id="book-search-input" role="search"><input type="text" placeholder="Type to search"></div> <compodoc-menu></compodoc-menu>
</div>
<div class="container-fluid main">
<div class="row main">
<div class="hidden-xs menu">
<compodoc-menu mode="normal"></compodoc-menu>
</div>
<!-- START CONTENT -->
<div class="content injectable">
<div class="content-data">
<ol class="breadcrumb">
<li>Injectables</li>
<li>TokenService</li>
</ol>
<ul class="nav nav-tabs" role="tablist">
<li class="active">
<a href="#info" role="tab" id="info-tab" data-toggle="tab" data-link="info">Info</a>
</li>
<li >
<a href="#source" role="tab" id="source-tab" data-toggle="tab" data-link="source">Source</a>
</li>
</ul>
<div class="tab-content">
<div class="tab-pane fade active in" id="c-info">
<p class="comment">
<h3>File</h3>
</p>
<p class="comment">
<code>src/app/_services/token.service.ts</code>
</p>
<section>
<h3 id="index">Index</h3>
<table class="table table-sm table-bordered index-table">
<tbody>
<tr>
<td class="col-md-4">
<h6><b>Properties</b></h6>
</td>
</tr>
<tr>
<td class="col-md-4">
<ul class="index-list">
<li>
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<a href="#load">load</a>
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</li>
<li>
<a href="#registry">registry</a>
</li>
<li>
<a href="#tokenRegistry">tokenRegistry</a>
</li>
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<li>
<a href="#tokens">tokens</a>
</li>
<li>
<span class="modifier">Private</span>
<a href="#tokensList">tokensList</a>
</li>
<li>
<a href="#tokensSubject">tokensSubject</a>
</li>
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</ul>
</td>
</tr>
<tr>
<td class="col-md-4">
<h6><b>Methods</b></h6>
</td>
</tr>
<tr>
<td class="col-md-4">
<ul class="index-list">
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<li>
<a href="#addToken">addToken</a>
</li>
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<li>
<span class="modifier">Async</span>
<a href="#getTokenBalance">getTokenBalance</a>
</li>
<li>
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<span class="modifier">Async</span>
<a href="#getTokenByAddress">getTokenByAddress</a>
</li>
<li>
<span class="modifier">Async</span>
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<a href="#getTokenBySymbol">getTokenBySymbol</a>
</li>
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<li>
<span class="modifier">Async</span>
<a href="#getTokenName">getTokenName</a>
</li>
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<li>
<span class="modifier">Async</span>
<a href="#getTokens">getTokens</a>
</li>
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<li>
<span class="modifier">Async</span>
<a href="#getTokenSymbol">getTokenSymbol</a>
</li>
<li>
<span class="modifier">Async</span>
<a href="#init">init</a>
</li>
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</ul>
</td>
</tr>
</tbody>
</table>
</section>
<section>
<h3 id="constructor">Constructor</h3>
<table class="table table-sm table-bordered">
<tbody>
<tr>
<td class="col-md-4">
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<code>constructor(httpClient: <a href="https://angular.io/api/common/http/HttpClient" target="_blank">HttpClient</a>)</code>
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</td>
</tr>
<tr>
<td class="col-md-4">
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<div class="io-line">Defined in <a href="" data-line="20" class="link-to-prism">src/app/_services/token.service.ts:20</a></div>
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</td>
</tr>
<tr>
<td class="col-md-4">
<div>
<b>Parameters :</b>
<table class="params">
<thead>
<tr>
<td>Name</td>
<td>Type</td>
<td>Optional</td>
</tr>
</thead>
<tbody>
<tr>
<td>httpClient</td>
<td>
<code><a href="https://angular.io/api/common/http/HttpClient" target="_blank" >HttpClient</a></code>
</td>
<td>
No
</td>
</tr>
</tbody>
</table>
</div>
</td>
</tr>
</tbody>
</table>
</section>
<section>
<h3 id="methods">
Methods
</h3>
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<table class="table table-sm table-bordered">
<tbody>
<tr>
<td class="col-md-4">
<a name="addToken"></a>
<span class="name">
<b>
addToken
</b>
<a href="#addToken"><span class="icon ion-ios-link"></span></a>
</span>
</td>
</tr>
<tr>
<td class="col-md-4">
<code>addToken(token: <a href="../interfaces/Token.html">Token</a>)</code>
</td>
</tr>
<tr>
<td class="col-md-4">
<div class="io-line">Defined in <a href="" data-line="32"
class="link-to-prism">src/app/_services/token.service.ts:32</a></div>
</td>
</tr>
<tr>
<td class="col-md-4">
<div class="io-description">
<b>Parameters :</b>
<table class="params">
<thead>
<tr>
<td>Name</td>
<td>Type</td>
<td>Optional</td>
</tr>
</thead>
<tbody>
<tr>
<td>token</td>
<td>
<code><a href="../interfaces/Token.html" target="_self" >Token</a></code>
</td>
<td>
No
</td>
</tr>
</tbody>
</table>
</div>
<div>
</div>
<div class="io-description">
<b>Returns : </b> <code><a href="https://www.typescriptlang.org/docs/handbook/basic-types.html" target="_blank" >void</a></code>
</div>
<div class="io-description">
</div>
</td>
</tr>
</tbody>
</table>
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<table class="table table-sm table-bordered">
<tbody>
<tr>
<td class="col-md-4">
<a name="getTokenBalance"></a>
<span class="name">
<b>
<span class="modifier">Async</span>
getTokenBalance
</b>
<a href="#getTokenBalance"><span class="icon ion-ios-link"></span></a>
</span>
</td>
</tr>
<tr>
<td class="col-md-4">
<span class="modifier-icon icon ion-ios-reset"></span>
<code>getTokenBalance(address: <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/string" target="_blank">string</a>)</code>
</td>
</tr>
<tr>
<td class="col-md-4">
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<div class="io-line">Defined in <a href="" data-line="73"
class="link-to-prism">src/app/_services/token.service.ts:73</a></div>
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</td>
</tr>
<tr>
<td class="col-md-4">
<div class="io-description">
<b>Parameters :</b>
<table class="params">
<thead>
<tr>
<td>Name</td>
<td>Type</td>
<td>Optional</td>
</tr>
</thead>
<tbody>
<tr>
<td>address</td>
<td>
<code><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/string" target="_blank" >string</a></code>
</td>
<td>
No
</td>
</tr>
</tbody>
</table>
</div>
<div>
</div>
<div class="io-description">
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<b>Returns : </b> <code>Promise&lt;Promise&lt;number&gt;&gt;</code>
</div>
<div class="io-description">
</div>
</td>
</tr>
</tbody>
</table>
<table class="table table-sm table-bordered">
<tbody>
<tr>
<td class="col-md-4">
<a name="getTokenByAddress"></a>
<span class="name">
<b>
<span class="modifier">Async</span>
getTokenByAddress
</b>
<a href="#getTokenByAddress"><span class="icon ion-ios-link"></span></a>
</span>
</td>
</tr>
<tr>
<td class="col-md-4">
<span class="modifier-icon icon ion-ios-reset"></span>
<code>getTokenByAddress(address: <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/string" target="_blank">string</a>)</code>
</td>
</tr>
<tr>
<td class="col-md-4">
<div class="io-line">Defined in <a href="" data-line="52"
class="link-to-prism">src/app/_services/token.service.ts:52</a></div>
</td>
</tr>
<tr>
<td class="col-md-4">
<div class="io-description">
<b>Parameters :</b>
<table class="params">
<thead>
<tr>
<td>Name</td>
<td>Type</td>
<td>Optional</td>
</tr>
</thead>
<tbody>
<tr>
<td>address</td>
<td>
<code><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/string" target="_blank" >string</a></code>
</td>
<td>
No
</td>
</tr>
</tbody>
</table>
</div>
<div>
</div>
<div class="io-description">
<b>Returns : </b> <code><a href="../interfaces/Token.html" target="_self" >Promise&lt;Token&gt;</a></code>
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</div>
<div class="io-description">
</div>
</td>
</tr>
</tbody>
</table>
<table class="table table-sm table-bordered">
<tbody>
<tr>
<td class="col-md-4">
<a name="getTokenBySymbol"></a>
<span class="name">
<b>
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<span class="modifier">Async</span>
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getTokenBySymbol
</b>
<a href="#getTokenBySymbol"><span class="icon ion-ios-link"></span></a>
</span>
</td>
</tr>
<tr>
<td class="col-md-4">
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<span class="modifier-icon icon ion-ios-reset"></span>
<code>getTokenBySymbol(symbol: <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/string" target="_blank">string</a>)</code>
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</td>
</tr>
<tr>
<td class="col-md-4">
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<div class="io-line">Defined in <a href="" data-line="63"
class="link-to-prism">src/app/_services/token.service.ts:63</a></div>
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</td>
</tr>
<tr>
<td class="col-md-4">
<div class="io-description">
<b>Parameters :</b>
<table class="params">
<thead>
<tr>
<td>Name</td>
<td>Type</td>
<td>Optional</td>
</tr>
</thead>
<tbody>
<tr>
<td>symbol</td>
<td>
<code><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/string" target="_blank" >string</a></code>
</td>
<td>
No
</td>
</tr>
</tbody>
</table>
</div>
<div>
</div>
<div class="io-description">
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<b>Returns : </b> <code><a href="../interfaces/Token.html" target="_self" >Promise&lt;Observable&lt;Token&gt;&gt;</a></code>
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</div>
<div class="io-description">
</div>
</td>
</tr>
</tbody>
</table>
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<table class="table table-sm table-bordered">
<tbody>
<tr>
<td class="col-md-4">
<a name="getTokenName"></a>
<span class="name">
<b>
<span class="modifier">Async</span>
getTokenName
</b>
<a href="#getTokenName"><span class="icon ion-ios-link"></span></a>
</span>
</td>
</tr>
<tr>
<td class="col-md-4">
<span class="modifier-icon icon ion-ios-reset"></span>
<code>getTokenName()</code>
</td>
</tr>
<tr>
<td class="col-md-4">
<div class="io-line">Defined in <a href="" data-line="78"
class="link-to-prism">src/app/_services/token.service.ts:78</a></div>
</td>
</tr>
<tr>
<td class="col-md-4">
<div class="io-description">
<b>Returns : </b> <code>Promise&lt;string&gt;</code>
</div>
</td>
</tr>
</tbody>
</table>
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<table class="table table-sm table-bordered">
<tbody>
<tr>
<td class="col-md-4">
<a name="getTokens"></a>
<span class="name">
<b>
<span class="modifier">Async</span>
getTokens
</b>
<a href="#getTokens"><span class="icon ion-ios-link"></span></a>
</span>
</td>
</tr>
<tr>
<td class="col-md-4">
<span class="modifier-icon icon ion-ios-reset"></span>
<code>getTokens()</code>
</td>
</tr>
<tr>
<td class="col-md-4">
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<div class="io-line">Defined in <a href="" data-line="44"
class="link-to-prism">src/app/_services/token.service.ts:44</a></div>
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</td>
</tr>
<tr>
<td class="col-md-4">
<div class="io-description">
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<b>Returns : </b> <code>Promise&lt;void&gt;</code>
</div>
</td>
</tr>
</tbody>
</table>
<table class="table table-sm table-bordered">
<tbody>
<tr>
<td class="col-md-4">
<a name="getTokenSymbol"></a>
<span class="name">
<b>
<span class="modifier">Async</span>
getTokenSymbol
</b>
<a href="#getTokenSymbol"><span class="icon ion-ios-link"></span></a>
</span>
</td>
</tr>
<tr>
<td class="col-md-4">
<span class="modifier-icon icon ion-ios-reset"></span>
<code>getTokenSymbol()</code>
</td>
</tr>
<tr>
<td class="col-md-4">
<div class="io-line">Defined in <a href="" data-line="83"
class="link-to-prism">src/app/_services/token.service.ts:83</a></div>
</td>
</tr>
<tr>
<td class="col-md-4">
<div class="io-description">
<b>Returns : </b> <code>Promise&lt;string&gt;</code>
</div>
</td>
</tr>
</tbody>
</table>
<table class="table table-sm table-bordered">
<tbody>
<tr>
<td class="col-md-4">
<a name="init"></a>
<span class="name">
<b>
<span class="modifier">Async</span>
init
</b>
<a href="#init"><span class="icon ion-ios-link"></span></a>
</span>
</td>
</tr>
<tr>
<td class="col-md-4">
<span class="modifier-icon icon ion-ios-reset"></span>
<code>init()</code>
</td>
</tr>
<tr>
<td class="col-md-4">
<div class="io-line">Defined in <a href="" data-line="24"
class="link-to-prism">src/app/_services/token.service.ts:24</a></div>
</td>
</tr>
<tr>
<td class="col-md-4">
<div class="io-description">
<b>Returns : </b> <code>Promise&lt;void&gt;</code>
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</div>
</td>
</tr>
</tbody>
</table>
</section>
<section>
<h3 id="inputs">
Properties
</h3>
<table class="table table-sm table-bordered">
<tbody>
<tr>
<td class="col-md-4">
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<a name="load"></a>
Add docs.
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<span class="name">
<b>
Update docs.
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load</b>
<a href="#load"><span class="icon ion-ios-link"></span></a>
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</span>
</td>
</tr>
<tr>
<td class="col-md-4">
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<i>Type : </i> <code>BehaviorSubject&lt;any&gt;</code>
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</td>
</tr>
<tr>
<td class="col-md-4">
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<i>Default value : </i><code>new BehaviorSubject&lt;any&gt;(false)</code>
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</td>
</tr>
<tr>
<td class="col-md-4">
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<div class="io-line">Defined in <a href="" data-line="20" class="link-to-prism">src/app/_services/token.service.ts:20</a></div>
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</td>
</tr>
</tbody>
</table>
<table class="table table-sm table-bordered">
<tbody>
<tr>
<td class="col-md-4">
<a name="registry"></a>
<span class="name">
<b>
registry</b>
<a href="#registry"><span class="icon ion-ios-link"></span></a>
</span>
</td>
</tr>
<tr>
<td class="col-md-4">
<i>Type : </i> <code>CICRegistry</code>
</td>
</tr>
<tr>
<td class="col-md-4">
<div class="io-line">Defined in <a href="" data-line="13" class="link-to-prism">src/app/_services/token.service.ts:13</a></div>
</td>
</tr>
</tbody>
</table>
<table class="table table-sm table-bordered">
<tbody>
<tr>
<td class="col-md-4">
<a name="tokenRegistry"></a>
<span class="name">
<b>
tokenRegistry</b>
<a href="#tokenRegistry"><span class="icon ion-ios-link"></span></a>
</span>
</td>
</tr>
<tr>
<td class="col-md-4">
<i>Type : </i> <code><a href="../interfaces/Token.html" target="_self" >TokenRegistry</a></code>
</td>
</tr>
<tr>
<td class="col-md-4">
<div class="io-line">Defined in <a href="" data-line="14" class="link-to-prism">src/app/_services/token.service.ts:14</a></div>
</td>
</tr>
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</tbody>
</table>
<table class="table table-sm table-bordered">
<tbody>
<tr>
<td class="col-md-4">
<a name="tokens"></a>
<span class="name">
<b>
tokens</b>
<a href="#tokens"><span class="icon ion-ios-link"></span></a>
</span>
</td>
</tr>
<tr>
<td class="col-md-4">
<i>Type : </i> <code><a href="../interfaces/Token.html" target="_self" >Array&lt;Token&gt;</a></code>
</td>
</tr>
<tr>
<td class="col-md-4">
<i>Default value : </i><code>[]</code>
</td>
</tr>
<tr>
<td class="col-md-4">
<div class="io-line">Defined in <a href="" data-line="15" class="link-to-prism">src/app/_services/token.service.ts:15</a></div>
</td>
</tr>
</tbody>
</table>
<table class="table table-sm table-bordered">
<tbody>
<tr>
<td class="col-md-4">
<a name="tokensList"></a>
<span class="name">
<b>
<span class="modifier">Private</span>
tokensList</b>
<a href="#tokensList"><span class="icon ion-ios-link"></span></a>
</span>
</td>
</tr>
<tr>
<td class="col-md-4">
<i>Type : </i> <code><a href="../interfaces/Token.html" target="_self" >BehaviorSubject&lt;Array&lt;Token&gt;&gt;</a></code>
</td>
</tr>
<tr>
<td class="col-md-4">
<i>Default value : </i><code>new BehaviorSubject&lt;Array&lt;Token&gt;&gt;(
this.tokens
)</code>
</td>
</tr>
<tr>
<td class="col-md-4">
<div class="io-line">Defined in <a href="" data-line="16" class="link-to-prism">src/app/_services/token.service.ts:16</a></div>
</td>
</tr>
</tbody>
</table>
<table class="table table-sm table-bordered">
<tbody>
<tr>
<td class="col-md-4">
<a name="tokensSubject"></a>
<span class="name">
<b>
tokensSubject</b>
<a href="#tokensSubject"><span class="icon ion-ios-link"></span></a>
</span>
</td>
</tr>
<tr>
<td class="col-md-4">
<i>Type : </i> <code><a href="../interfaces/Token.html" target="_self" >Observable&lt;Array&lt;Token&gt;&gt;</a></code>
</td>
</tr>
<tr>
<td class="col-md-4">
<i>Default value : </i><code>this.tokensList.asObservable()</code>
</td>
</tr>
<tr>
<td class="col-md-4">
<div class="io-line">Defined in <a href="" data-line="19" class="link-to-prism">src/app/_services/token.service.ts:19</a></div>
</td>
</tr>
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</tbody>
</table>
</section>
</div>
<div class="tab-pane fade tab-source-code" id="c-source">
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<pre class="line-numbers compodoc-sourcecode"><code class="language-typescript">import { Injectable } from &#x27;@angular/core&#x27;;
import { CICRegistry } from &#x27;@cicnet/cic-client&#x27;;
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import { TokenRegistry } from &#x27;@app/_eth&#x27;;
import { HttpClient } from &#x27;@angular/common/http&#x27;;
import { RegistryService } from &#x27;@app/_services/registry.service&#x27;;
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import { Token } from &#x27;@app/_models&#x27;;
import { BehaviorSubject, Observable, Subject } from &#x27;rxjs&#x27;;
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@Injectable({
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providedIn: &#x27;root&#x27;,
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})
export class TokenService {
registry: CICRegistry;
tokenRegistry: TokenRegistry;
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tokens: Array&lt;Token&gt; &#x3D; [];
private tokensList: BehaviorSubject&lt;Array&lt;Token&gt;&gt; &#x3D; new BehaviorSubject&lt;Array&lt;Token&gt;&gt;(
this.tokens
);
tokensSubject: Observable&lt;Array&lt;Token&gt;&gt; &#x3D; this.tokensList.asObservable();
load: BehaviorSubject&lt;any&gt; &#x3D; new BehaviorSubject&lt;any&gt;(false);
constructor(private httpClient: HttpClient) {}
async init(): Promise&lt;void&gt; {
this.registry &#x3D; await RegistryService.getRegistry();
this.tokenRegistry &#x3D; new TokenRegistry(
await this.registry.getContractAddressByName(&#x27;TokenRegistry&#x27;)
);
this.load.next(true);
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}
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addToken(token: Token): void {
const savedIndex &#x3D; this.tokens.findIndex((tk) &#x3D;&gt; tk.address &#x3D;&#x3D;&#x3D; token.address);
if (savedIndex &#x3D;&#x3D;&#x3D; 0) {
return;
}
if (savedIndex &gt; 0) {
this.tokens.splice(savedIndex, 1);
}
this.tokens.unshift(token);
this.tokensList.next(this.tokens);
}
async getTokens(): Promise&lt;void&gt; {
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const count: number &#x3D; await this.tokenRegistry.totalTokens();
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for (let i &#x3D; 0; i &lt; count; i++) {
const token: Token &#x3D; await this.getTokenByAddress(await this.tokenRegistry.entry(i));
this.addToken(token);
}
}
async getTokenByAddress(address: string): Promise&lt;Token&gt; {
const token: any &#x3D; {};
const tokenContract &#x3D; await this.registry.addToken(address);
token.address &#x3D; address;
token.name &#x3D; await tokenContract.methods.name().call();
token.symbol &#x3D; await tokenContract.methods.symbol().call();
token.supply &#x3D; await tokenContract.methods.totalSupply().call();
token.decimals &#x3D; await tokenContract.methods.decimals().call();
return token;
}
async getTokenBySymbol(symbol: string): Promise&lt;Observable&lt;Token&gt;&gt; {
const tokenSubject: Subject&lt;Token&gt; &#x3D; new Subject&lt;Token&gt;();
await this.getTokens();
this.tokensSubject.subscribe((tokens) &#x3D;&gt; {
const queriedToken &#x3D; tokens.find((token) &#x3D;&gt; token.symbol &#x3D;&#x3D;&#x3D; symbol);
tokenSubject.next(queriedToken);
});
return tokenSubject.asObservable();
}
async getTokenBalance(address: string): Promise&lt;(address: string) &#x3D;&gt; Promise&lt;number&gt;&gt; {
const token &#x3D; await this.registry.addToken(await this.tokenRegistry.entry(0));
return await token.methods.balanceOf(address).call();
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}
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async getTokenName(): Promise&lt;string&gt; {
const token &#x3D; await this.registry.addToken(await this.tokenRegistry.entry(0));
return await token.methods.name().call();
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}
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async getTokenSymbol(): Promise&lt;string&gt; {
const token &#x3D; await this.registry.addToken(await this.tokenRegistry.entry(0));
return await token.methods.symbol().call();
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}
}
</code></pre>
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