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| <div class="section" id="module-apache_beam.io.gcp.pubsub"> |
| <span id="apache-beam-io-gcp-pubsub-module"></span><h1>apache_beam.io.gcp.pubsub module<a class="headerlink" href="#module-apache_beam.io.gcp.pubsub" title="Permalink to this headline">¶</a></h1> |
| <p>Google Cloud PubSub sources and sinks.</p> |
| <p>Cloud Pub/Sub sources and sinks are currently supported only in streaming |
| pipelines, during remote execution.</p> |
| <p>This API is currently under development and is subject to change.</p> |
| <dl class="class"> |
| <dt id="apache_beam.io.gcp.pubsub.ReadStringsFromPubSub"> |
| <em class="property">class </em><code class="descclassname">apache_beam.io.gcp.pubsub.</code><code class="descname">ReadStringsFromPubSub</code><span class="sig-paren">(</span><em>topic=None</em>, <em>subscription=None</em>, <em>id_label=None</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/io/gcp/pubsub.html#ReadStringsFromPubSub"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#apache_beam.io.gcp.pubsub.ReadStringsFromPubSub" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Bases: <a class="reference internal" href="apache_beam.transforms.ptransform.html#apache_beam.transforms.ptransform.PTransform" title="apache_beam.transforms.ptransform.PTransform"><code class="xref py py-class docutils literal"><span class="pre">apache_beam.transforms.ptransform.PTransform</span></code></a></p> |
| <p>A <code class="docutils literal"><span class="pre">PTransform</span></code> for reading utf-8 string payloads from Cloud Pub/Sub.</p> |
| <p>Initializes <code class="docutils literal"><span class="pre">ReadStringsFromPubSub</span></code>.</p> |
| <dl class="attribute"> |
| <dt id="apache_beam.io.gcp.pubsub.ReadStringsFromPubSub.topic"> |
| <code class="descname">topic</code><a class="headerlink" href="#apache_beam.io.gcp.pubsub.ReadStringsFromPubSub.topic" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Cloud Pub/Sub topic in the form “projects/<project>/topics/ |
| <topic>”. If provided, subscription must be None.</p> |
| </dd></dl> |
| |
| <dl class="attribute"> |
| <dt id="apache_beam.io.gcp.pubsub.ReadStringsFromPubSub.subscription"> |
| <code class="descname">subscription</code><a class="headerlink" href="#apache_beam.io.gcp.pubsub.ReadStringsFromPubSub.subscription" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Existing Cloud Pub/Sub subscription to use in the |
| form “projects/<project>/subscriptions/<subscription>”. If not |
| specified, a temporary subscription will be created from the specified |
| topic. If provided, topic must be None.</p> |
| </dd></dl> |
| |
| <dl class="attribute"> |
| <dt id="apache_beam.io.gcp.pubsub.ReadStringsFromPubSub.id_label"> |
| <code class="descname">id_label</code><a class="headerlink" href="#apache_beam.io.gcp.pubsub.ReadStringsFromPubSub.id_label" title="Permalink to this definition">¶</a></dt> |
| <dd><p>The attribute on incoming Pub/Sub messages to use as a unique |
| record identifier. When specified, the value of this attribute (which |
| can be any string that uniquely identifies the record) will be used for |
| deduplication of messages. If not provided, we cannot guarantee |
| that no duplicate data will be delivered on the Pub/Sub stream. In this |
| case, deduplication of the stream will be strictly best effort.</p> |
| </dd></dl> |
| |
| <dl class="method"> |
| <dt id="apache_beam.io.gcp.pubsub.ReadStringsFromPubSub.get_windowing"> |
| <code class="descname">get_windowing</code><span class="sig-paren">(</span><em>unused_inputs</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/io/gcp/pubsub.html#ReadStringsFromPubSub.get_windowing"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#apache_beam.io.gcp.pubsub.ReadStringsFromPubSub.get_windowing" title="Permalink to this definition">¶</a></dt> |
| <dd></dd></dl> |
| |
| <dl class="method"> |
| <dt id="apache_beam.io.gcp.pubsub.ReadStringsFromPubSub.expand"> |
| <code class="descname">expand</code><span class="sig-paren">(</span><em>pvalue</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/io/gcp/pubsub.html#ReadStringsFromPubSub.expand"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#apache_beam.io.gcp.pubsub.ReadStringsFromPubSub.expand" title="Permalink to this definition">¶</a></dt> |
| <dd></dd></dl> |
| |
| </dd></dl> |
| |
| <dl class="class"> |
| <dt id="apache_beam.io.gcp.pubsub.WriteStringsToPubSub"> |
| <em class="property">class </em><code class="descclassname">apache_beam.io.gcp.pubsub.</code><code class="descname">WriteStringsToPubSub</code><span class="sig-paren">(</span><em>topic</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/io/gcp/pubsub.html#WriteStringsToPubSub"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#apache_beam.io.gcp.pubsub.WriteStringsToPubSub" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Bases: <a class="reference internal" href="apache_beam.transforms.ptransform.html#apache_beam.transforms.ptransform.PTransform" title="apache_beam.transforms.ptransform.PTransform"><code class="xref py py-class docutils literal"><span class="pre">apache_beam.transforms.ptransform.PTransform</span></code></a></p> |
| <p>A <code class="docutils literal"><span class="pre">PTransform</span></code> for writing utf-8 string payloads to Cloud Pub/Sub.</p> |
| <p>Initializes <code class="docutils literal"><span class="pre">WriteStringsToPubSub</span></code>.</p> |
| <dl class="attribute"> |
| <dt id="apache_beam.io.gcp.pubsub.WriteStringsToPubSub.topic"> |
| <code class="descname">topic</code><a class="headerlink" href="#apache_beam.io.gcp.pubsub.WriteStringsToPubSub.topic" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Cloud Pub/Sub topic in the form “/topics/<project>/<topic>”.</p> |
| </dd></dl> |
| |
| <dl class="method"> |
| <dt id="apache_beam.io.gcp.pubsub.WriteStringsToPubSub.expand"> |
| <code class="descname">expand</code><span class="sig-paren">(</span><em>pcoll</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/io/gcp/pubsub.html#WriteStringsToPubSub.expand"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#apache_beam.io.gcp.pubsub.WriteStringsToPubSub.expand" title="Permalink to this definition">¶</a></dt> |
| <dd></dd></dl> |
| |
| </dd></dl> |
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