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aria-label="Breadcrumbs"><ul class="breadcrumbs" itemscope="" itemtype="https://schema.org/BreadcrumbList"><li class="breadcrumbs__item"><a aria-label="Home page" class="breadcrumbs__link" href="/"><svg viewBox="0 0 24 24" class="breadcrumbHomeIcon_YNFT"><path d="M10 19v-5h4v5c0 .55.45 1 1 1h3c.55 0 1-.45 1-1v-7h1.7c.46 0 .68-.57.33-.87L12.67 3.6c-.38-.34-.96-.34-1.34 0l-8.36 7.53c-.34.3-.13.87.33.87H5v7c0 .55.45 1 1 1h3c.55 0 1-.45 1-1z" fill="currentColor"></path></svg></a></li><li class="breadcrumbs__item"><span class="breadcrumbs__link">API</span><meta itemprop="position" content="1"></li><li class="breadcrumbs__item"><span class="breadcrumbs__link">GraphQL API</span><meta itemprop="position" content="2"></li><li class="breadcrumbs__item"><span class="breadcrumbs__link">Guides</span><meta itemprop="position" content="3"></li><li itemscope="" itemprop="itemListElement" itemtype="https://schema.org/ListItem" class="breadcrumbs__item breadcrumbs__item--active"><span class="breadcrumbs__link" itemprop="name">How To Set Up GraphQL</span><meta itemprop="position" content="4"></li></ul></nav><span class="theme-doc-version-badge badge badge--secondary">Version: Next</span><div class="tocCollapsible_ETCw theme-doc-toc-mobile tocMobile_ITEo"><button type="button" class="clean-btn tocCollapsibleButton_TO0P">On this page</button></div><div class="theme-doc-markdown markdown"><h1>How To Set Up GraphQL</h1><h2 class="anchor anchorWithStickyNavbar_LWe7" id="preparing-local-datahub-deployment">Preparing Local Datahub Deployment<a href="#preparing-local-datahub-deployment" class="hash-link" aria-label="Direct link to Preparing Local Datahub Deployment" title="Direct link to Preparing Local Datahub Deployment"></a></h2><p>The first thing you'll need to use the GraphQL API is a deployed instance of DataHub with some metadata ingested.
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For more information, please refer to <a href="/docs/quickstart">Datahub Quickstart Guide</a>.</p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="querying-the-graphql-api">Querying the GraphQL API<a href="#querying-the-graphql-api" class="hash-link" aria-label="Direct link to Querying the GraphQL API" title="Direct link to Querying the GraphQL API"></a></h2><p>DataHub's GraphQL endpoint is served at the path <code>/api/graphql</code>, e.g. <code>https://my-company.datahub.com/api/graphql</code>.
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There are a few options when it comes to querying the GraphQL endpoint.</p><p>For <strong>Testing</strong>:</p><ul><li>GraphQL Explorer (GraphiQL)</li><li>CURL</li><li>Postman</li></ul><p>For <strong>Production</strong>:</p><ul><li>GraphQL <a href="https://graphql.org/code/" target="_blank" rel="noopener noreferrer">Client SDK</a> for the language of your choice</li><li>Basic HTTP client</li></ul><blockquote><p>Notice: The DataHub GraphQL endpoint only supports POST requests at this time.</p></blockquote><h3 class="anchor anchorWithStickyNavbar_LWe7" id="graphql-explorer-graphiql">GraphQL Explorer (GraphiQL)<a href="#graphql-explorer-graphiql" class="hash-link" aria-label="Direct link to GraphQL Explorer (GraphiQL)" title="Direct link to GraphQL Explorer (GraphiQL)"></a></h3><p>DataHub provides a browser-based GraphQL Explorer Tool (<a href="https://github.com/graphql/graphiql" target="_blank" rel="noopener noreferrer">GraphiQL</a>) for live interaction with the GraphQL API. This tool is available at the path <code>/api/graphiql</code> (e.g. <code>https://my-company.datahub.com/api/graphiql</code>)
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This interface allows you to easily craft queries and mutations against real metadata stored in your live DataHub deployment.</p><p>To experiment with GraphiQL before deploying it in your live DataHub deployment, you can access a demo site provided by DataHub at <a href="https://demo.datahub.com/api/graphiql" target="_blank" rel="noopener noreferrer">https://demo.datahub.com/api/graphiql</a>.</p><p>For instance, you can create a tag by posting the following query:</p><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 plain">mutation createTag </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"> createTag(input</span><span class="token operator" style="color:rgb(137, 221, 255)">:</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><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> name</span><span class="token operator" style="color:rgb(137, 221, 255)">:</span><span class="token plain"> </span><span class="token string" style="color:rgb(195, 232, 141)">"Deprecated"</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"> description</span><span class="token operator" style="color:rgb(137, 221, 255)">:</span><span class="token plain"> </span><span class="token string" style="color:rgb(195, 232, 141)">"Having this tag means this column or table is deprecated."</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><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>For a detailed usage guide, check out <a href="https://www.gatsbyjs.com/docs/how-to/querying-data/running-queries-with-graphiql/" target="_blank" rel="noopener noreferrer">How to use GraphiQL</a>.</p><p>To navigate to <code>GraphiQL</code> on the demo site or your local instance, select <code>GraphiQL</code> from the user profile drop-down menu as
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shown below.</p><div><div role="tabpanel" class="tabItem_Ymn6"><p align="center"><img loading="lazy" width="90%" src="https://raw.githubusercontent.com/datahub-project/static-assets/main/imgs/api/graphql/how-to-set-up-graphql/datahub_graphiql_link.png" class="img_ev3q"></p></div><div role="tabpanel" class="tabItem_Ymn6"><p align="center"><img loading="lazy" width="90%" src="https://raw.githubusercontent.com/datahub-project/static-assets/main/imgs/api/graphql/how-to-set-up-graphql/datahubcloud_graphiql_link.png" class="img_ev3q"></p></div></div><p>This link will then display the following interface for exploring GraphQL queries.</p><p align="center"><img loading="lazy" width="90%" src="https://raw.githubusercontent.com/datahub-project/static-assets/main/imgs/api/graphql/how-to-set-up-graphql/datahub_graphiql.png" class="img_ev3q"></p><h3 class="anchor anchorWithStickyNavbar_LWe7" id="curl">CURL<a href="#curl" class="hash-link" aria-label="Direct link to CURL" title="Direct link to CURL"></a></h3><p>CURL is a command-line tool used for transferring data using various protocols including HTTP, HTTPS, and others.
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To query the DataHub GraphQL API using CURL, you can send a <code>POST</code> request to the <code>/api/graphql</code> endpoint with the GraphQL query in the request body.
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Here is an example CURL command to create a tag via GraphQL API:</p><div class="language-shell codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-shell codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token function" style="color:rgb(130, 170, 255)">curl</span><span class="token plain"> --location --request POST </span><span class="token string" style="color:rgb(195, 232, 141)">'http://localhost:8080/api/graphql'</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">--header </span><span class="token string" style="color:rgb(195, 232, 141)">'Authorization: Bearer <my-access-token>'</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">--header </span><span class="token string" style="color:rgb(195, 232, 141)">'Content-Type: application/json'</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">--data-raw </span><span class="token string" style="color:rgb(195, 232, 141)">'{ "query": "mutation createTag { createTag(input: { name: \"Deprecated\", description: \"Having this tag means this column or table is deprecated.\" }) }", "variables":{}}'</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><h3 class="anchor anchorWithStickyNavbar_LWe7" id="postman">Postman<a href="#postman" class="hash-link" aria-label="Direct link to Postman" title="Direct link to Postman"></a></h3><p>Postman is a popular API client that provides a graphical user interface for sending requests and viewing responses.
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Within Postman, you can create a <code>POST</code> request and set the request URL to the <code>/api/graphql</code> endpoint.
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In the request body, select the <code>GraphQL</code> option and enter your GraphQL query in the request body.</p><p align="center"><img loading="lazy" width="70%" src="https://raw.githubusercontent.com/datahub-project/static-assets/main/imgs/apis/postman-graphql.png" class="img_ev3q"></p><p>Please refer to <a href="https://learning.postman.com/docs/sending-requests/graphql/graphql-overview/" target="_blank" rel="noopener noreferrer">Querying with GraphQL</a> in the Postman documentation for more information.</p><h3 class="anchor anchorWithStickyNavbar_LWe7" id="authentication--authorization">Authentication + Authorization<a href="#authentication--authorization" class="hash-link" aria-label="Direct link to Authentication + Authorization" title="Direct link to Authentication + Authorization"></a></h3><p>In general, you'll need to provide an <a href="/docs/authentication/personal-access-tokens">Access Token</a> when querying the GraphQL by
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providing an <code>Authorization</code> header containing a <code>Bearer</code> token. The header should take the following format:</p><div class="language-bash codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-bash codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">Authorization: Bearer </span><span class="token operator" style="color:rgb(137, 221, 255)"><</span><span class="token plain">access-token</span><span class="token operator" style="color:rgb(137, 221, 255)">></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>Authorization for actions exposed by the GraphQL endpoint will be performed based on the actor making the request.
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For Personal Access Tokens, the token will carry the user's privileges. Please refer to <a href="/docs/api/graphql/token-management">Access Token Management</a> for more information.</p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="whats-next">What's Next?<a href="#whats-next" class="hash-link" aria-label="Direct link to What's Next?" title="Direct link to What's Next?"></a></h2><p>Now that you are ready with GraphQL, how about browsing through some use cases?
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Please refer to <a href="/docs/api/graphql/getting-started">Getting Started With GraphQL</a> for more information.</p></div><footer class="theme-doc-footer docusaurus-mt-lg"><div class="slackUtm_uoBr"><div class="slackUtm_uoBr"><hr>Need more help? 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