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class="outline-title" id="doc-outline-aria-label" role="heading" data-v-a5bbad30>On this page</div><ul class="VPDocOutlineItem root" data-v-a5bbad30 data-v-b933a997><!--[--><!--]--></ul></div></nav><!--[--><!--]--><div class="spacer" data-v-3f215769></div><!--[--><!--]--><!----><!--[--><!--]--><!--[--><!--]--></div></div></div></div><div class="content" data-v-39a288b8><div class="content-container" data-v-39a288b8><!--[--><!--]--><main class="main" data-v-39a288b8><div style="position:relative;" class="vp-doc _api-reference" data-v-39a288b8><div><h1 id="node-cron-module" tabindex="-1">Node-Cron Module <a class="header-anchor" href="#node-cron-module" aria-label="Permalink to &quot;Node-Cron Module&quot;">​</a></h1><p>This page documents all public methods available in the node-cron module, including usage examples, parameter descriptions, and behavior notes.</p><h2 id="🔹-schedule-expression-func-options" tabindex="-1">🔹 <code>schedule(expression, func, options?)</code> <a class="header-anchor" href="#🔹-schedule-expression-func-options" aria-label="Permalink to &quot;🔹 `schedule(expression, func, options?)`&quot;">​</a></h2><p>Schedules a task to be executed based on a cron expression.</p><h3 id="parameters" tabindex="-1">Parameters <a class="header-anchor" href="#parameters" aria-label="Permalink to &quot;Parameters&quot;">​</a></h3><table tabindex="0"><thead><tr><th>Name</th><th>Type</th><th>Description</th></tr></thead><tbody><tr><td><code>expression</code></td><td><code>string</code></td><td>A valid cron expression (e.g., <code>&quot;0 0 * * *&quot;</code> to run at midnight daily)</td></tr><tr><td><code>func</code></td><td><code>Function | string</code></td><td>A function to execute, or a path to a module that exports a <code>task</code> function. By passing a path node-cron is going to create <a href="./background-tasks.html">Background Task</a></td></tr><tr><td><code>options</code></td><td><code>Options</code> <em>(optional)</em></td><td>Additional options to control execution (see below)</td></tr></tbody></table><h4 id="options" tabindex="-1">Options <a class="header-anchor" href="#options" aria-label="Permalink to &quot;Options&quot;">​</a></h4><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">type</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> Options</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> =</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> {</span></span>
<span class="line"><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;">  name</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">?:</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> string</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;">  timezone</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">?:</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> string</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;       </span><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// E.g., &quot;America/New_York&quot;</span></span>
<span class="line"><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;">  noOverlap</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">?:</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> boolean</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;     </span><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// Prevents overlapping executions</span></span>
<span class="line"><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;">  maxExecutions</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">?:</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> number</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;  </span><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// Maximum number of times the task should run</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">};</span></span></code></pre></div><h4 id="returns" tabindex="-1">Returns <a class="header-anchor" href="#returns" aria-label="Permalink to &quot;Returns&quot;">​</a></h4><p>Returns a ScheduledTask instance with control methods:</p><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> cron </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;node-cron&#39;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
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<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">const</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> task</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> =</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> cron.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">schedule</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&#39;* * * * *&#39;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, () </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">=&gt;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> {</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">  console.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">log</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&#39;Running every minute&#39;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">});</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">task.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">stop</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">();    </span><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// Pauses the task</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">task.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">start</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">();   </span><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// Starts or resumes the task</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">task.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">destroy</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(); </span><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// Completely removes the task</span></span></code></pre></div><p>See more on <a href="/task-controls.html">Task Controls Guide</a></p><h2 id="🔹-createtask-expression-func-options" tabindex="-1">🔹 <code>createTask(expression, func, options?)</code> <a class="header-anchor" href="#🔹-createtask-expression-func-options" aria-label="Permalink to &quot;🔹 `createTask(expression, func, options?)`&quot;">​</a></h2><p>Creates a task instance without automatically starting it. Useful for cases where you need more control (e.g., starting later, conditionally, or in tests).</p><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> cron </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;node-cron&#39;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
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<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">const</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> task</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> =</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> cron.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">createTask</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&#39;0 * * * *&#39;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, () </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">=&gt;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> {</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">  console.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">log</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&#39;Running every hour&#39;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">});</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">task.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">start</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">();</span></span></code></pre></div><h2 id="🔹-validate-expression-string-boolean" tabindex="-1">🔹 <code>validate(expression: string): boolean</code> <a class="header-anchor" href="#🔹-validate-expression-string-boolean" aria-label="Permalink to &quot;🔹 `validate(expression: string): boolean`&quot;">​</a></h2><p>Validates whether a given cron expression is syntactically correct. Example</p><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> cron </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;node-cron&#39;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">cron.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&#39;0 12 * * *&#39;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">); </span><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// true</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">cron.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&#39;invalid&#39;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);    </span><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// false</span></span></code></pre></div><p>Returns true if the expression is valid, false otherwise.</p></div></div></main><footer class="VPDocFooter" data-v-39a288b8 data-v-e257564d><!--[--><!--]--><!----><nav class="prev-next" aria-labelledby="doc-footer-aria-label" data-v-e257564d><span class="visually-hidden" id="doc-footer-aria-label" data-v-e257564d>Pager</span><div class="pager" data-v-e257564d><a class="VPLink link pager-link prev" href="/cron-syntax.html" data-v-e257564d><!--[--><span class="desc" data-v-e257564d>Previous page</span><span class="title" data-v-e257564d>Cron Syntax</span><!--]--></a></div><div class="pager" data-v-e257564d><a class="VPLink link pager-link next" href="/scheduling-options.html" data-v-e257564d><!--[--><span class="desc" data-v-e257564d>Next page</span><span class="title" data-v-e257564d>Scheduling Options</span><!--]--></a></div></nav></footer><!--[--><!--]--></div></div></div><!--[--><!--]--></div></div><footer class="VPFooter has-sidebar" data-v-5d98c3a5 data-v-e315a0ad><div class="container" data-v-e315a0ad><p class="message" data-v-e315a0ad>Released in 2016 under the ISC License.</p><p class="copyright" data-v-e315a0ad>Made with 💚 by @merencia</p></div></footer><!--[--><!--]--></div></div>
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