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    <title>DEV Community: Sampath Lokuge</title>
    <description>The latest articles on DEV Community by Sampath Lokuge (@sampathlokuge).</description>
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      <title>Avoid Firestore permission error without using first operator</title>
      <dc:creator>Sampath Lokuge</dc:creator>
      <pubDate>Tue, 14 Jan 2020 09:50:23 +0000</pubDate>
      <link>https://dev.to/sampathlokuge/avoid-firestore-permission-error-without-using-first-operator-gie</link>
      <guid>https://dev.to/sampathlokuge/avoid-firestore-permission-error-without-using-first-operator-gie</guid>
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               Avoid Firestore permission error without using first operator
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        &lt;div class="ltag__stackexchange--post-metadata"&gt;
          &lt;span&gt;Jan 14 '20&lt;/span&gt;
            &lt;span&gt;Comments: 4&lt;/span&gt;
            &lt;span&gt;Answers: 1&lt;/span&gt;
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          -1
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&lt;p&gt;I have a subscription method like so and it is working fine.&lt;/p&gt;
&lt;pre&gt;&lt;code&gt; setOnboardingUser(uid: string): void {
    this.currentUserUid = uid;

    combineLatest([this.getProfile(uid), this.getUserFirstName(uid), this.getUserLastName(uid)]))
      .subscribe(([res1, res2, res3]) =&amp;gt; {
        this.OnboardingUser = res1;
        this.userFirstName = res2.firstName;
        this.userLastName = res3.lastName;
      }, err =&amp;gt; { console.log(err); }); // it throws error here when signout
  }
&lt;/code&gt;&lt;/pre&gt;
&lt;p&gt;…&lt;/p&gt;
    
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      &lt;a href="https://stackoverflow.com/questions/59730441/avoid-firestore-permission-error-without-using-first-operator" rel="noopener noreferrer"&gt;Open Full Question&lt;/a&gt;
    
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