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Custom Assertions are those not natively run or directly modeled by DataHub, and managed by a 3rd party framework or tool.</p><p>To create <em>native</em> assertions using the API (e.g. for DataHub to manage), please refer to the <a href="/docs/api/tutorials/assertions">Assertions API</a>.</p><p>This guide may be used as reference for partners seeking to integrate their own monitoring tools with DataHub.</p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="goal-of-this-guide">Goal Of This Guide<a href="#goal-of-this-guide" class="hash-link" aria-label="Direct link to Goal Of This Guide" title="Direct link to Goal Of This Guide"></a></h2><p>In this guide, you will learn how to</p><ol><li>Create and update custom assertions via GraphQL and Python APIs</li><li>Report results for custom assertions via GraphQL and Python APIs</li><li>Retrieve results for custom assertions via GraphQL and Python APIs</li><li>Delete custom assertions via GraphQL and Python APIs</li></ol><h2 class="anchor anchorWithStickyNavbar_LWe7" id="prerequisites">Prerequisites<a href="#prerequisites" class="hash-link" aria-label="Direct link to Prerequisites" title="Direct link to Prerequisites"></a></h2><p>The actor making API calls must have the <code>Edit Assertions</code> and <code>Edit Monitors</code> privileges for the Tables being monitored.</p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="create-and-update-custom-assertions">Create And Update Custom Assertions<a href="#create-and-update-custom-assertions" class="hash-link" aria-label="Direct link to Create And Update Custom Assertions" title="Direct link to Create And Update Custom Assertions"></a></h2><p>You may create custom assertions using the following APIs for a Dataset in DataHub.</p><div class="tabs-container tabList__CuJ"><ul role="tablist" aria-orientation="horizontal" class="tabs"><li role="tab" tabindex="0" aria-selected="true" class="tabs__item tabItem_LNqP tabs__item--active">GraphQL</li><li role="tab" tabindex="-1" aria-selected="false" class="tabs__item tabItem_LNqP">Python</li></ul><div class="margin-top--md"><div role="tabpanel" class="tabItem_Ymn6"><p>To create a new assertion, use the <code>upsertCustomAssertion</code> GraphQL Mutation. This mutation both allows you to
create and update a given assertion.</p><div class="language-graphql codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-graphql codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token keyword" style="font-style:italic">mutation</span><span class="token plain"> </span><span class="token definition-mutation function" style="color:rgb(130, 170, 255)">upsertCustomAssertion</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">{</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token property-query">upsertCustomAssertion</span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token attr-name" style="color:rgb(255, 203, 107)">urn</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> </span><span class="token string" style="color:rgb(195, 232, 141)">&quot;urn:li:assertion:my-custom-assertion-id&quot;</span><span class="token plain"> </span><span class="token comment" style="color:rgb(105, 112, 152);font-style:italic"># Optional: if you want to provide a custom id. If not, one will be generated for you.</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token attr-name" style="color:rgb(255, 203, 107)">input</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">{</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token attr-name" style="color:rgb(255, 203, 107)">entityUrn</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> </span><span class="token description string" style="color:rgb(195, 232, 141)">&quot;</span><span class="token description string language-markdown tag punctuation" style="color:rgb(199, 146, 234)">&lt;</span><span class="token description string language-markdown tag" style="color:rgb(255, 85, 114)">urn</span><span class="token description string language-markdown tag" style="color:rgb(255, 85, 114)"> </span><span class="token description string language-markdown tag attr-name" style="color:rgb(255, 203, 107)">of</span><span class="token description string language-markdown tag" style="color:rgb(255, 85, 114)"> </span><span class="token description string language-markdown tag attr-name" style="color:rgb(255, 203, 107)">entity</span><span class="token description string language-markdown tag" style="color:rgb(255, 85, 114)"> </span><span class="token description string language-markdown tag attr-name" style="color:rgb(255, 203, 107)">being</span><span class="token description string language-markdown tag" style="color:rgb(255, 85, 114)"> </span><span class="token description string language-markdown tag attr-name" style="color:rgb(255, 203, 107)">monitored</span><span class="token description string language-markdown tag punctuation" style="color:rgb(199, 146, 234)">&gt;</span><span class="token description string" style="color:rgb(195, 232, 141)">&quot;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token attr-name" style="color:rgb(255, 203, 107)">type</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> </span><span class="token string" style="color:rgb(195, 232, 141)">&quot;My Custom Category&quot;</span><span class="token plai
using the following APIs.</p><p>Once reported, these will appear in the evaluation history of the assertion and will be used to determine whether the assertion is
displayed as passing or failing in the DataHub UI.</p><div class="tabs-container tabList__CuJ"><ul role="tablist" aria-orientation="horizontal" class="tabs"><li role="tab" tabindex="0" aria-selected="true" class="tabs__item tabItem_LNqP tabs__item--active">GraphQL</li><li role="tab" tabindex="-1" aria-selected="false" class="tabs__item tabItem_LNqP">Python</li></ul><div class="margin-top--md"><div role="tabpanel" class="tabItem_Ymn6"><p>To report results for a custom, use the <code>reportAssertionResult</code> GraphQL Mutation. This mutation both allows you to
create and update a given assertion.</p><div class="language-graphql codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-graphql codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token keyword" style="font-style:italic">mutation</span><span class="token plain"> </span><span class="token definition-mutation function" style="color:rgb(130, 170, 255)">reportAssertionResult</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">{</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token property-query">reportAssertionResult</span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token attr-name" style="color:rgb(255, 203, 107)">urn</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> </span><span class="token description string" style="color:rgb(195, 232, 141)">&quot;</span><span class="token description string language-markdown" style="color:rgb(195, 232, 141)">urn:li:assertion:</span><span class="token description string language-markdown tag punctuation" style="color:rgb(199, 146, 234)">&lt;</span><span class="token description string language-markdown tag" style="color:rgb(255, 85, 114)">your-new-assertion-id</span><span class="token description string language-markdown tag punctuation" style="color:rgb(199, 146, 234)">&gt;</span><span class="token description string" style="color:rgb(195, 232, 141)">&quot;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token attr-name" style="color:rgb(255, 203, 107)">result</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">{</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token attr-name" style="color:rgb(255, 203, 107)">timestampMillis</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> </span><span class="token number" style="color:rgb(247, 140, 108)">1620000000000</span><span class="token plain"> </span><span class="token comment" style="color:rgb(105, 112, 152);font-style:italic"># Unix timestamp in millis. If not provided, the current time will be used.</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token attr-name" style="color:rgb(255, 203, 107)">type</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> </span><span class="token constant" style="color:rgb(130, 170, 255)">SUCCESS</span><span class="token plain"> </span><span class="token comment" style="color:rgb(105, 112, 152);font-style:italic"># or FAILURE or ERROR or INIT</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token attr-name" style="color:rgb(255, 203, 107)">properties</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">[</span><span class="token punctuation" style="color:rgb(199, 146, 234)">{</span><span class="token plain"> </span><span class="token attr-name" style="color:rgb(255, 203, 107)">key</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> </spa
in DataHub&#x27;s UI.</p><p>The full list of supported error types include:</p><ul><li>SOURCE_CONNECTION_ERROR</li><li>SOURCE_QUERY_FAILED</li><li>INSUFFICIENT_DATA</li><li>INVALID_PARAMETERS</li><li>INVALID_SOURCE_TYPE</li><li>UNSUPPORTED_PLATFORM</li><li>CUSTOM_SQL_ERROR</li><li>FIELD_ASSERTION_ERROR</li><li>UNKNOWN_ERROR</li></ul><div class="language-json codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-json codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token punctuation" style="color:rgb(199, 146, 234)">{</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token property">&quot;data&quot;</span><span class="token operator" style="color:rgb(137, 221, 255)">:</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">{</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token property">&quot;reportAssertionResult&quot;</span><span class="token operator" style="color:rgb(137, 221, 255)">:</span><span class="token plain"> </span><span class="token boolean" style="color:rgb(255, 88, 116)">true</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">}</span><span class="token punctuation" style="color:rgb(199, 146, 234)">,</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token property">&quot;extensions&quot;</span><span class="token operator" style="color:rgb(137, 221, 255)">:</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">{</span><span class="token punctuation" style="color:rgb(199, 146, 234)">}</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token punctuation" style="color:rgb(199, 146, 234)">}</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><p>If the result is <code>true</code>, the result was successfully reported.</p></div><div role="tabpanel" class="tabItem_Ymn6" hidden=""><p>To report an assertion result in Python, simply use the <code>report_assertion_result</code> method on the DataHub Client object.</p><div class="language-python codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-python codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token comment" style="color:rgb(105, 112, 152);font-style:italic"># Inlined from /metadata-ingestion/examples/library/report_assertion_result.py</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token keyword" style="font-style:italic">import</span><span class="token plain"> logging</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token keyword"
You can retrieve the results of these assertions using the following APIs.</p><div class="tabs-container tabList__CuJ"><ul role="tablist" aria-orientation="horizontal" class="tabs"><li role="tab" tabindex="0" aria-selected="true" class="tabs__item tabItem_LNqP tabs__item--active">GraphQL</li></ul><div class="margin-top--md"><div role="tabpanel" class="tabItem_Ymn6"><h3 class="anchor anchorWithStickyNavbar_LWe7" id="get-assertions-for-dataset">Get Assertions for Dataset<a href="#get-assertions-for-dataset" class="hash-link" aria-label="Direct link to Get Assertions for Dataset" title="Direct link to Get Assertions for Dataset"></a></h3><p>To retrieve all the assertions for a table / dataset, you can use the following GraphQL Query.</p><div class="language-graphql codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-graphql codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token keyword" style="font-style:italic">query</span><span class="token plain"> </span><span class="token definition-query function" style="color:rgb(130, 170, 255)">dataset</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">{</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token property-query">dataset</span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token attr-name" style="color:rgb(255, 203, 107)">urn</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> </span><span class="token string" style="color:rgb(195, 232, 141)">&quot;urn:li:dataset:(urn:li:dataPlatform:snowflake,purchases,PROD)&quot;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">)</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">{</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token property-query">assertions</span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token attr-name" style="color:rgb(255, 203, 107)">start</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> </span><span class="token number" style="color:rgb(247, 140, 108)">0</span><span class="token punctuation" style="color:rgb(199, 146, 234)">,</span><span class="token plain"> </span><span class="token attr-name" style="color:rgb(255, 203, 107)">count</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> </span><span class="token number" style="color:rgb(247, 140, 108)">1000</span><span class="token punctuation" style="color:rgb(199, 146, 234)">)</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">{</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token property">start</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token property">count</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token property">total</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token object"
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