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

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<!doctype html>
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<div class="content injectable">
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<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>
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<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>
<a href="#LoadEvent">LoadEvent</a>
</li>
<li>
<a href="#registry">registry</a>
</li>
<li>
<a href="#tokenRegistry">tokenRegistry</a>
</li>
</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">
<li>
<span class="modifier">Async</span>
<a href="#getTokenBalance">getTokenBalance</a>
</li>
<li>
<a href="#getTokenBySymbol">getTokenBySymbol</a>
</li>
<li>
<span class="modifier">Async</span>
<a href="#getTokens">getTokens</a>
</li>
</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">
<code>constructor(httpClient: <a href="https://angular.io/api/common/http/HttpClient" target="_blank">HttpClient</a>, registryService: <a href="../injectables/RegistryService.html">RegistryService</a>)</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>
<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>
<tr>
<td>registryService</td>
<td>
<code><a href="../injectables/RegistryService.html" target="_self" >RegistryService</a></code>
</td>
<td>
No
</td>
</tr>
</tbody>
</table>
</div>
</td>
</tr>
</tbody>
</table>
</section>
<section>
<h3 id="methods">
Methods
</h3>
<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">
<div class="io-line">Defined in <a href="" data-line="38"
class="link-to-prism">src/app/_services/token.service.ts:38</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>Promise&lt;number&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="getTokenBySymbol"></a>
<span class="name">
<b>
getTokenBySymbol
</b>
<a href="#getTokenBySymbol"><span class="icon ion-ios-link"></span></a>
</span>
</td>
</tr>
<tr>
<td class="col-md-4">
<code>getTokenBySymbol(symbol: <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="34"
class="link-to-prism">src/app/_services/token.service.ts:34</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>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">
<b>Returns : </b> <code>Observable&lt;any&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="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">
<div class="io-line">Defined in <a href="" data-line="29"
class="link-to-prism">src/app/_services/token.service.ts:29</a></div>
</td>
</tr>
<tr>
<td class="col-md-4">
<div class="io-description">
<b>Returns : </b> <code>Promise&lt;Array&lt;Promise&lt;string&gt;&gt;&gt;</code>
</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">
<a name="LoadEvent"></a>
<span class="name">
<b>
LoadEvent</b>
<a href="#LoadEvent"><span class="icon ion-ios-link"></span></a>
</span>
</td>
</tr>
<tr>
<td class="col-md-4">
<i>Type : </i> <code>EventEmitter&lt;number&gt;</code>
</td>
</tr>
<tr>
<td class="col-md-4">
<i>Default value : </i><code>new EventEmitter&lt;number&gt;()</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="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>
</tbody>
</table>
</section>
</div>
<div class="tab-pane fade tab-source-code" id="c-source">
<pre class="line-numbers compodoc-sourcecode"><code class="language-typescript">import { EventEmitter, Injectable } from &#x27;@angular/core&#x27;;
import {environment} from &#x27;@src/environments/environment&#x27;;
import {BehaviorSubject, Observable} from &#x27;rxjs&#x27;;
import {CICRegistry} from &#x27;cic-client&#x27;;
import {TokenRegistry} from &#x27;@app/_eth&#x27;;
import {HttpClient} from &#x27;@angular/common/http&#x27;;
import {RegistryService} from &#x27;@app/_services/registry.service&#x27;;
@Injectable({
providedIn: &#x27;root&#x27;
})
export class TokenService {
registry: CICRegistry;
tokenRegistry: TokenRegistry;
LoadEvent: EventEmitter&lt;number&gt; &#x3D; new EventEmitter&lt;number&gt;();
constructor(
private httpClient: HttpClient,
private registryService: RegistryService,
) {
this.registry &#x3D; registryService.getRegistry();
this.registry.load();
this.registry.onload &#x3D; async (address: string): Promise&lt;void&gt; &#x3D;&gt; {
this.tokenRegistry &#x3D; new TokenRegistry(await this.registry.getContractAddressByName(&#x27;TokenRegistry&#x27;));
this.LoadEvent.next(Date.now());
};
}
async getTokens(): Promise&lt;Array&lt;Promise&lt;string&gt;&gt;&gt; {
const count: number &#x3D; await this.tokenRegistry.totalTokens();
return Array.from({length: count}, async (v, i) &#x3D;&gt; await this.tokenRegistry.entry(i));
}
getTokenBySymbol(symbol: string): Observable&lt;any&gt; {
return this.httpClient.get(&#x60;${environment.cicCacheUrl}/tokens/${symbol}&#x60;);
}
async getTokenBalance(address: string): Promise&lt;number&gt; {
const sarafuToken &#x3D; await this.registry.addToken(await this.tokenRegistry.entry(0));
return await sarafuToken.methods.balanceOf(address).call();
}
}
</code></pre>
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