cic-staff-client/docs/compodoc/injectables/TokenService.html
2021-09-02 23:48:41 +00:00

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<!-- 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>
<a href="#load" >load</a>
</li>
<li>
<a href="#registry" >registry</a>
</li>
<li>
<a href="#tokenRegistry" >tokenRegistry</a>
</li>
<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>
</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>
<a href="#addToken" >addToken</a>
</li>
<li>
<span class="modifier">Async</span>
<a href="#getTokenBalance" >getTokenBalance</a>
</li>
<li>
<span class="modifier">Async</span>
<a href="#getTokenByAddress" >getTokenByAddress</a>
</li>
<li>
<span class="modifier">Async</span>
<a href="#getTokenBySymbol" >getTokenBySymbol</a>
</li>
<li>
<span class="modifier">Async</span>
<a href="#getTokenName" >getTokenName</a>
</li>
<li>
<span class="modifier">Async</span>
<a href="#getTokens" >getTokens</a>
</li>
<li>
<span class="modifier">Async</span>
<a href="#getTokenSymbol" >getTokenSymbol</a>
</li>
<li>
<span class="modifier">Async</span>
<a href="#init" >init</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()</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>
</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="addToken"></a>
<span class="name">
<span ><b>addToken</b></span>
<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" target="_self">Token</a>)</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>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>
<table class="table table-sm table-bordered">
<tbody>
<tr>
<td class="col-md-4">
<a name="getTokenBalance"></a>
<span class="name">
<span class="modifier">Async</span>
<span ><b>getTokenBalance</b></span>
<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="70"
class="link-to-prism">src/app/_services/token.service.ts:70</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;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">
<span class="modifier">Async</span>
<span ><b>getTokenByAddress</b></span>
<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="49"
class="link-to-prism">src/app/_services/token.service.ts:49</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>
</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">
<span class="modifier">Async</span>
<span ><b>getTokenBySymbol</b></span>
<a href="#getTokenBySymbol"><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>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="60"
class="link-to-prism">src/app/_services/token.service.ts:60</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><a href="../interfaces/Token.html" target="_self" >Promise&lt;Observable&lt;Token&gt;&gt;</a></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="getTokenName"></a>
<span class="name">
<span class="modifier">Async</span>
<span ><b>getTokenName</b></span>
<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="75"
class="link-to-prism">src/app/_services/token.service.ts:75</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="getTokens"></a>
<span class="name">
<span class="modifier">Async</span>
<span ><b>getTokens</b></span>
<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="41"
class="link-to-prism">src/app/_services/token.service.ts:41</a></div>
</td>
</tr>
<tr>
<td class="col-md-4">
<div class="io-description">
<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">
<span class="modifier">Async</span>
<span ><b>getTokenSymbol</b></span>
<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="80"
class="link-to-prism">src/app/_services/token.service.ts:80</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">
<span class="modifier">Async</span>
<span ><b>init</b></span>
<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="23"
class="link-to-prism">src/app/_services/token.service.ts:23</a></div>
</td>
</tr>
<tr>
<td class="col-md-4">
<div class="io-description">
<b>Returns : </b> <code>Promise&lt;void&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="load"></a>
<span class="name">
<span ><b>load</b></span>
<a href="#load"><span class="icon ion-ios-link"></span></a>
</span>
</td>
</tr>
<tr>
<td class="col-md-4">
<i>Type : </i> <code>BehaviorSubject&lt;any&gt;</code>
</td>
</tr>
<tr>
<td class="col-md-4">
<i>Default value : </i><code>new BehaviorSubject&lt;any&gt;(false)</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>
</tbody>
</table>
<table class="table table-sm table-bordered">
<tbody>
<tr>
<td class="col-md-4">
<a name="registry"></a>
<span class="name">
<span ><b>registry</b></span>
<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="12" class="link-to-prism">src/app/_services/token.service.ts:12</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">
<span ><b>tokenRegistry</b></span>
<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="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="tokens"></a>
<span class="name">
<span ><b>tokens</b></span>
<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="14" class="link-to-prism">src/app/_services/token.service.ts:14</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">
<span class="modifier">Private</span>
<span ><b>tokensList</b></span>
<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="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="tokensSubject"></a>
<span class="name">
<span ><b>tokensSubject</b></span>
<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="18" class="link-to-prism">src/app/_services/token.service.ts:18</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 { Injectable } from &#x27;@angular/core&#x27;;
import { CICRegistry } from &#x27;@cicnet/cic-client&#x27;;
import { TokenRegistry } from &#x27;@app/_eth&#x27;;
import { RegistryService } from &#x27;@app/_services/registry.service&#x27;;
import { Token } from &#x27;@app/_models&#x27;;
import { BehaviorSubject, Observable, Subject } from &#x27;rxjs&#x27;;
@Injectable({
providedIn: &#x27;root&#x27;,
})
export class TokenService {
registry: CICRegistry;
tokenRegistry: TokenRegistry;
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() {}
async init(): Promise&lt;void&gt; {
this.registry &#x3D; await RegistryService.getRegistry();
this.tokenRegistry &#x3D; await RegistryService.getTokenRegistry();
this.load.next(true);
}
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; {
const count: number &#x3D; await this.tokenRegistry.totalTokens();
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();
}
async getTokenName(): Promise&lt;string&gt; {
const token &#x3D; await this.registry.addToken(await this.tokenRegistry.entry(0));
return await token.methods.name().call();
}
async getTokenSymbol(): Promise&lt;string&gt; {
const token &#x3D; await this.registry.addToken(await this.tokenRegistry.entry(0));
return await token.methods.symbol().call();
}
}
</code></pre>
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