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    <title>MongoDB Jira</title>
    <link>https://jira.mongodb.org</link>
    <description>This file is an XML representation of an issue</description>
    <language>en-us</language>    <build-info>
        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
    </build-info>


<item>
            <title>[JAVA-3539] Implement convenient reactive API for Transactions</title>
                <link>https://jira.mongodb.org/browse/JAVA-3539</link>
                <project id="10006" key="JAVA">Java Driver</project>
                    <description>&lt;p&gt;See &lt;a href=&quot;https://jira.mongodb.org/browse/DRIVERS-556&quot; title=&quot;Implement Convenient API for Transactions&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DRIVERS-556&quot;&gt;&lt;del&gt;DRIVERS-556&lt;/del&gt;&lt;/a&gt; for details.&lt;/p&gt;</description>
                <environment></environment>
        <key id="629332">JAVA-3539</key>
            <summary>Implement convenient reactive API for Transactions</summary>
                <type id="2" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14711&amp;avatarType=issuetype">New Feature</type>
                                            <priority id="3" iconUrl="https://jira.mongodb.org/images/icons/priorities/major.svg">Major - P3</priority>
                        <status id="10038" iconUrl="https://jira.mongodb.org/images/icons/subtask.gif" description="">Backlog</status>
                    <statusCategory id="2" key="new" colorName="default"/>
                                    <resolution id="-1">Unresolved</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="rathi.gnanasekaran">Rathi Gnanasekaran</reporter>
                        <labels>
                    </labels>
                <created>Mon, 5 Nov 2018 20:02:41 +0000</created>
                <updated>Tue, 19 Sep 2023 09:05:41 +0000</updated>
                                                                            <component>Reactive Streams</component>
                    <component>Scala</component>
                                        <votes>5</votes>
                                    <watches>13</watches>
                                                                                                                <comments>
                            <comment id="5713924" author="JIRAUSER1275158" created="Tue, 19 Sep 2023 09:05:41 +0000"  >&lt;p&gt;&lt;a href=&quot;https://quarkus.io/guides/mongodb-panache#reactive-transactions&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://quarkus.io/guides/mongodb-panache#reactive-transactions&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;&#160;&lt;/p&gt;
&lt;h3&gt;&lt;a name=&quot;Reactivetransactions&quot;&gt;&lt;/a&gt;Reactive transactions&lt;/h3&gt;
&lt;p&gt;MongoDB offers ACID transactions since version 4.0.&lt;br/&gt;
To use them with reactive entities or repositories you need to use&#160;{{}}&lt;/p&gt;
&lt;p/&gt;
&lt;div id=&quot;syntaxplugin&quot; class=&quot;syntaxplugin&quot; style=&quot;border: 1px dashed #bbb; border-radius: 5px !important; overflow: auto; max-height: 30em;&quot;&gt;
&lt;table cellspacing=&quot;0&quot; cellpadding=&quot;0&quot; border=&quot;0&quot; width=&quot;100%&quot; style=&quot;font-size: 1em; line-height: 1.4em !important; font-weight: normal; font-style: normal; color: black;&quot;&gt;
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						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;  margin-top: 10px;   margin-bottom: 10px;  width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;io.quarkus.mongodb.panache.common.reactive.Panache.withTransaction()&lt;/span&gt;&lt;/pre&gt;
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&lt;/div&gt;
&lt;p/&gt;
&lt;p&gt;{{}}&lt;/p&gt;

&lt;p&gt;{{}}&lt;/p&gt;
&lt;p/&gt;
&lt;div id=&quot;syntaxplugin&quot; class=&quot;syntaxplugin&quot; style=&quot;border: 1px dashed #bbb; border-radius: 5px !important; overflow: auto; max-height: 30em;&quot;&gt;
&lt;table cellspacing=&quot;0&quot; cellpadding=&quot;0&quot; border=&quot;0&quot; width=&quot;100%&quot; style=&quot;font-size: 1em; line-height: 1.4em !important; font-weight: normal; font-style: normal; color: black;&quot;&gt;
		&lt;tbody &gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;  margin-top: 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: gray; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;@POST&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: #006699; font-weight: bold; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;public&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; Uni&amp;lt;Response&amp;gt; addPerson(ReactiveTransactionPerson person) {&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;    &lt;/span&gt;&lt;span style=&quot;color: #006699; font-weight: bold; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;return&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; Panache.withTransaction(() -&amp;gt; person.persist().map(v -&amp;gt; {&lt;/span&gt;&lt;/pre&gt;
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		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;        &lt;/span&gt;&lt;span style=&quot;color: #008200; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;//the ID is populated before sending it to the database&lt;/span&gt;&lt;/pre&gt;
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		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;        String id = person.id.toString();&lt;/span&gt;&lt;/pre&gt;
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				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;        &lt;/span&gt;&lt;span style=&quot;color: #006699; font-weight: bold; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;return&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; Response.created(URI.create(&lt;/span&gt;&lt;span style=&quot;color: blue; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;&quot;/reactive-transaction/&quot;&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; + id)).build();&lt;/span&gt;&lt;/pre&gt;
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						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;    }));&lt;/span&gt;&lt;/pre&gt;
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						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   margin-bottom: 10px;  width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;} &lt;/span&gt;&lt;/pre&gt;
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&lt;/table&gt;
&lt;/div&gt;
&lt;p/&gt;
&lt;p&gt;{&lt;tt&gt;}&lt;/tt&gt;{&lt;tt&gt;}&lt;/tt&gt;&lt;br/&gt;
In MongoDB, a transaction is only possible on a replicaset, luckily our&#160;&lt;a href=&quot;https://quarkus.io/guides/mongodb#dev-services&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Dev Services for MongoDB&lt;/a&gt;&#160;setups a single node replicaset so it is compatible with transactions.&lt;/p&gt;
&lt;div class=&apos;table-wrap&apos;&gt;
&lt;table class=&apos;confluenceTable&apos;&gt;&lt;tbody&gt;
&lt;tr&gt;
&lt;td class=&apos;confluenceTd&apos;&gt;&#160;&lt;/td&gt;
&lt;td class=&apos;confluenceTd&apos;&gt;Reactive transaction support inside MongoDB with Panache is still experimental.&lt;/td&gt;
&lt;/tr&gt;
&lt;/tbody&gt;&lt;/table&gt;
&lt;/div&gt;
</comment>
                            <comment id="5708659" author="JIRAUSER1268547" created="Fri, 15 Sep 2023 20:49:40 +0000"  >&lt;p&gt;There&apos;s no traction as yet, as it&apos;s not clear what direction to go.&#160; So long as the reactive driver API is solely based on the Reactive Streams API, there is not much we can do, as there is no larger context that we can use to orchestrate transactional behavior.&#160; Contrast this, for example, with&#160;&lt;a href=&quot;https://spring.io/blog/2019/05/16/reactive-transactions-with-spring&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Spring Data Reactive Transactions&lt;/a&gt;, which relies on all the machinery available via&#160;&lt;a href=&quot;https://projectreactor.io/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Project Reactor&lt;/a&gt;.&lt;/p&gt;

&lt;p&gt;We are open to considering this in the future, but as it stands currently, the community desire for this feature isn&apos;t quite where it would need to be to warrant the substantial lift this would require.&lt;/p&gt;

&lt;p&gt;Have you explored any workarounds, like Spring Data MongoDB or the forthcoming Loom? Or is your preference for the Java driver to provide a standalone reactive transaction manager that is based on something like Project Reactor?&lt;/p&gt;</comment>
                            <comment id="5507977" author="JIRAUSER1272497" created="Sun, 18 Jun 2023 05:41:46 +0000"  >&lt;p&gt;Its been 5 years and still in backlog. Any traction on this.&lt;/p&gt;</comment>
                            <comment id="3441420" author="s_huber@gmx.net" created="Tue, 13 Oct 2020 08:34:09 +0000"  >&lt;p&gt;@Esha Bhargava&#160;&lt;/p&gt;

&lt;p&gt;I think &lt;a href=&quot;https://jira.mongodb.org/browse/JAVA-3067&quot; title=&quot;Implement Convenient API for Transactions&quot; class=&quot;issue-link&quot; data-issue-key=&quot;JAVA-3067&quot;&gt;&lt;del&gt;JAVA-3067&lt;/del&gt;&lt;/a&gt; targets only the sync java driver, whereas this issue targets the reactive streams / async driver.&lt;/p&gt;</comment>
                            <comment id="3040012" author="esha.bhargava" created="Wed, 15 Apr 2020 01:37:13 +0000"  >&lt;p&gt;dup of &lt;a href=&quot;https://jira.mongodb.org/browse/JAVA-3067&quot; title=&quot;Implement Convenient API for Transactions&quot; class=&quot;issue-link&quot; data-issue-key=&quot;JAVA-3067&quot;&gt;&lt;del&gt;JAVA-3067&lt;/del&gt;&lt;/a&gt;&lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
                            <issuelinktype id="10012">
                    <name>Related</name>
                                            <outwardlinks description="related to">
                                        <issuelink>
            <issuekey id="1998452">JAVA-4527</issuekey>
        </issuelink>
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                                                                <inwardlinks description="is related to">
                                        <issuelink>
            <issuekey id="583342">DRIVERS-556</issuekey>
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