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<span>Projects</span>
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<a class="" href="../projects_schemas-create">Schemas Create</a>
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<a class="" href="../projects_subscriptions-acknowledge">Subscriptions Acknowledge</a>
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<a class="current" href=".">Subscriptions Create</a>
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<li class="toctree-l2"><a href="#scopes">Scopes</a></li>
<li class="toctree-l2"><a href="#required-scalar-argument">Required Scalar Argument</a></li>
<li class="toctree-l2"><a href="#required-request-value">Required Request Value</a></li>
<li><a class="toctree-l3" href="#about-cursors">About Cursors</a></li>
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<li class="toctree-l2"><a href="#optional-general-properties">Optional General Properties</a></li>
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<a class="" href="../projects_subscriptions-delete">Subscriptions Delete</a>
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<a class="" href="../projects_subscriptions-detach">Subscriptions Detach</a>
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<a class="" href="../projects_subscriptions-get">Subscriptions Get</a>
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<a class="" href="../projects_subscriptions-list">Subscriptions List</a>
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<a class="" href="../projects_subscriptions-modify-ack-deadline">Subscriptions Modify Ack Deadline</a>
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<a class="" href="../projects_subscriptions-modify-push-config">Subscriptions Modify Push Config</a>
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<a class="" href="../projects_subscriptions-patch">Subscriptions Patch</a>
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<a class="" href="../projects_subscriptions-pull">Subscriptions Pull</a>
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<a class="" href="../projects_subscriptions-seek">Subscriptions Seek</a>
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<a class="" href="../projects_subscriptions-set-iam-policy">Subscriptions Set Iam Policy</a>
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<a class="" href="../projects_topics-create">Topics Create</a>
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<a class="" href="../projects_topics-list">Topics List</a>
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<a class="" href="../projects_topics-patch">Topics Patch</a>
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<a class="" href="../projects_topics-publish">Topics Publish</a>
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<a class="" href="../projects_topics-set-iam-policy">Topics Set Iam Policy</a>
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<p>Creates a subscription to a given topic. See the [resource name rules] (https://cloud.google.com/pubsub/docs/admin#resource_names). If the subscription already exists, returns <code>ALREADY_EXISTS</code>. If the corresponding topic doesn&#39;t exist, returns <code>NOT_FOUND</code>. If the name is not provided in the request, the server will assign a random name for this subscription on the same project as the topic, conforming to the [resource name format] (https://cloud.google.com/pubsub/docs/admin#resource_names). The generated name is populated in the returned Subscription object. Note that for REST API requests, you must specify a name in the request.</p>
<h1 id="scopes">Scopes</h1>
<p>You will need authorization for at least one of the following scopes to make a valid call:</p>
<ul>
<li><em>https://www.googleapis.com/auth/cloud-platform</em></li>
<li><em>https://www.googleapis.com/auth/pubsub</em></li>
</ul>
<p>If unset, the scope for this method defaults to <em>https://www.googleapis.com/auth/cloud-platform</em>.
You can set the scope for this method like this: <code>pubsub1 --scope &lt;scope&gt; projects subscriptions-create ...</code></p>
<h1 id="required-scalar-argument">Required Scalar Argument</h1>
<ul>
<li><strong>&lt;name&gt;</strong> <em>(string)</em><ul>
<li>Required. The name of the subscription. It must have the format <code>&amp;#34;projects/{project}/subscriptions/{subscription}&amp;#34;</code>. <code>{subscription}</code> must start with a letter, and contain only letters (<code>[A-Za-z]</code>), numbers (<code>[0-9]</code>), dashes (<code>-</code>), underscores (<code>_</code>), periods (<code>.</code>), tildes (<code>~</code>), plus (<code>+</code>) or percent signs (<code>%</code>). It must be between 3 and 255 characters in length, and it must not start with <code>&amp;#34;goog&amp;#34;</code>.</li>
</ul>
</li>
</ul>
<h1 id="required-request-value">Required Request Value</h1>
<p>The request value is a data-structure with various fields. Each field may be a simple scalar or another data-structure.
In the latter case it is advised to set the field-cursor to the data-structure's field to specify values more concisely.</p>
<p>For example, a structure like this:</p>
<pre><code>Subscription:
ack-deadline-seconds: integer
dead-letter-policy:
dead-letter-topic: string
max-delivery-attempts: integer
detached: boolean
enable-message-ordering: boolean
expiration-policy:
ttl: string
filter: string
labels: { string: string }
message-retention-duration: string
name: string
push-config:
attributes: { string: string }
oidc-token:
audience: string
service-account-email: string
push-endpoint: string
retain-acked-messages: boolean
retry-policy:
maximum-backoff: string
minimum-backoff: string
topic: string
</code></pre>
<p>can be set completely with the following arguments which are assumed to be executed in the given order. Note how the cursor position is adjusted to the respective structures, allowing simple field names to be used most of the time.</p>
<ul>
<li><code>-r . ack-deadline-seconds=89</code><ul>
<li>The approximate amount of time (on a best-effort basis) Pub/Sub waits for the subscriber to acknowledge receipt before resending the message. In the interval after the message is delivered and before it is acknowledged, it is considered to be <em>outstanding</em>. During that time period, the message will not be redelivered (on a best-effort basis). For pull subscriptions, this value is used as the initial value for the ack deadline. To override this value for a given message, call <code>ModifyAckDeadline</code> with the corresponding <code>ack_id</code> if using non-streaming pull or send the <code>ack_id</code> in a <code>StreamingModifyAckDeadlineRequest</code> if using streaming pull. The minimum custom deadline you can specify is 10 seconds. The maximum custom deadline you can specify is 600 seconds (10 minutes). If this parameter is 0, a default value of 10 seconds is used. For push delivery, this value is also used to set the request timeout for the call to the push endpoint. If the subscriber never acknowledges the message, the Pub/Sub system will eventually redeliver the message.</li>
</ul>
</li>
<li><code>dead-letter-policy dead-letter-topic=rebum.</code><ul>
<li>The name of the topic to which dead letter messages should be published. Format is <code>projects/{project}/topics/{topic}</code>.The Cloud Pub/Sub service account associated with the enclosing subscription&#39;s parent project (i.e., service-{project_number}@gcp-sa-pubsub.iam.gserviceaccount.com) must have permission to Publish() to this topic. The operation will fail if the topic does not exist. Users should ensure that there is a subscription attached to this topic since messages published to a topic with no subscriptions are lost.</li>
</ul>
</li>
<li>
<p><code>max-delivery-attempts=44</code></p>
<ul>
<li>The maximum number of delivery attempts for any message. The value must be between 5 and 100. The number of delivery attempts is defined as 1 + (the sum of number of NACKs and number of times the acknowledgement deadline has been exceeded for the message). A NACK is any call to ModifyAckDeadline with a 0 deadline. Note that client libraries may automatically extend ack_deadlines. This field will be honored on a best effort basis. If this parameter is 0, a default value of 5 is used.</li>
</ul>
</li>
<li>
<p><code>.. detached=true</code></p>
<ul>
<li>Indicates whether the subscription is detached from its topic. Detached subscriptions don&#39;t receive messages from their topic and don&#39;t retain any backlog. <code>Pull</code> and <code>StreamingPull</code> requests will return FAILED_PRECONDITION. If the subscription is a push subscription, pushes to the endpoint will not be made.</li>
</ul>
</li>
<li><code>enable-message-ordering=true</code><ul>
<li>If true, messages published with the same <code>ordering_key</code> in <code>PubsubMessage</code> will be delivered to the subscribers in the order in which they are received by the Pub/Sub system. Otherwise, they may be delivered in any order.</li>
</ul>
</li>
<li>
<p><code>expiration-policy ttl=est</code></p>
<ul>
<li>Specifies the &#34;time-to-live&#34; duration for an associated resource. The resource expires if it is not active for a period of <code>ttl</code>. The definition of &#34;activity&#34; depends on the type of the associated resource. The minimum and maximum allowed values for <code>ttl</code> depend on the type of the associated resource, as well. If <code>ttl</code> is not set, the associated resource never expires.</li>
</ul>
</li>
<li>
<p><code>.. filter=gubergren</code></p>
<ul>
<li>An expression written in the Pub/Sub <a href="https://cloud.google.com/pubsub/docs/filtering">filter language</a>. If non-empty, then only <code>PubsubMessage</code>s whose <code>attributes</code> field matches the filter are delivered on this subscription. If empty, then no messages are filtered out.</li>
</ul>
</li>
<li><code>labels=key=ea</code><ul>
<li>See Creating and managing labels.</li>
<li>the value will be associated with the given <code>key</code></li>
</ul>
</li>
<li><code>message-retention-duration=dolor</code><ul>
<li>How long to retain unacknowledged messages in the subscription&#39;s backlog, from the moment a message is published. If <code>retain_acked_messages</code> is true, then this also configures the retention of acknowledged messages, and thus configures how far back in time a <code>Seek</code> can be done. Defaults to 7 days. Cannot be more than 7 days or less than 10 minutes.</li>
</ul>
</li>
<li><code>name=lorem</code><ul>
<li>Required. The name of the subscription. It must have the format <code>&amp;#34;projects/{project}/subscriptions/{subscription}&amp;#34;</code>. <code>{subscription}</code> must start with a letter, and contain only letters (<code>[A-Za-z]</code>), numbers (<code>[0-9]</code>), dashes (<code>-</code>), underscores (<code>_</code>), periods (<code>.</code>), tildes (<code>~</code>), plus (<code>+</code>) or percent signs (<code>%</code>). It must be between 3 and 255 characters in length, and it must not start with <code>&amp;#34;goog&amp;#34;</code>.</li>
</ul>
</li>
<li><code>push-config attributes=key=eos</code><ul>
<li>Endpoint configuration attributes that can be used to control different aspects of the message delivery. The only currently supported attribute is <code>x-goog-version</code>, which you can use to change the format of the pushed message. This attribute indicates the version of the data expected by the endpoint. This controls the shape of the pushed message (i.e., its fields and metadata). If not present during the <code>CreateSubscription</code> call, it will default to the version of the Pub/Sub API used to make such call. If not present in a <code>ModifyPushConfig</code> call, its value will not be changed. <code>GetSubscription</code> calls will always return a valid version, even if the subscription was created without this attribute. The only supported values for the <code>x-goog-version</code> attribute are: * <code>v1beta1</code>: uses the push format defined in the v1beta1 Pub/Sub API. * <code>v1</code> or <code>v1beta2</code>: uses the push format defined in the v1 Pub/Sub API. For example: attributes { &#34;x-goog-version&#34;: &#34;v1&#34; } </li>
<li>the value will be associated with the given <code>key</code></li>
</ul>
</li>
<li><code>oidc-token audience=labore</code><ul>
<li>Audience to be used when generating OIDC token. The audience claim identifies the recipients that the JWT is intended for. The audience value is a single case-sensitive string. Having multiple values (array) for the audience field is not supported. More info about the OIDC JWT token audience here: https://tools.ietf.org/html/rfc7519#section-4.1.3 Note: if not specified, the Push endpoint URL will be used.</li>
</ul>
</li>
<li>
<p><code>service-account-email=sed</code></p>
<ul>
<li><a href="https://cloud.google.com/iam/docs/service-accounts">Service account email</a> to be used for generating the OIDC token. The caller (for CreateSubscription, UpdateSubscription, and ModifyPushConfig RPCs) must have the iam.serviceAccounts.actAs permission for the service account.</li>
</ul>
</li>
<li>
<p><code>.. push-endpoint=duo</code></p>
<ul>
<li>A URL locating the endpoint to which messages should be pushed. For example, a Webhook endpoint might use <code>https://example.com/push</code>.</li>
</ul>
</li>
<li>
<p><code>.. retain-acked-messages=false</code></p>
<ul>
<li>Indicates whether to retain acknowledged messages. If true, then messages are not expunged from the subscription&#39;s backlog, even if they are acknowledged, until they fall out of the <code>message_retention_duration</code> window. This must be true if you would like to [<code>Seek</code> to a timestamp] (https://cloud.google.com/pubsub/docs/replay-overview#seek_to_a_time) in the past to replay previously-acknowledged messages.</li>
</ul>
</li>
<li><code>retry-policy maximum-backoff=no</code><ul>
<li>The maximum delay between consecutive deliveries of a given message. Value should be between 0 and 600 seconds. Defaults to 600 seconds.</li>
</ul>
</li>
<li>
<p><code>minimum-backoff=stet</code></p>
<ul>
<li>The minimum delay between consecutive deliveries of a given message. Value should be between 0 and 600 seconds. Defaults to 10 seconds.</li>
</ul>
</li>
<li>
<p><code>.. topic=kasd</code></p>
<ul>
<li>Required. The name of the topic from which this subscription is receiving messages. Format is <code>projects/{project}/topics/{topic}</code>. The value of this field will be <code>_deleted-topic_</code> if the topic has been deleted.</li>
</ul>
</li>
</ul>
<h3 id="about-cursors">About Cursors</h3>
<p>The cursor position is key to comfortably set complex nested structures. The following rules apply:</p>
<ul>
<li>The cursor position is always set relative to the current one, unless the field name starts with the <code>.</code> character. Fields can be nested such as in <code>-r f.s.o</code> .</li>
<li>The cursor position is set relative to the top-level structure if it starts with <code>.</code>, e.g. <code>-r .s.s</code></li>
<li>You can also set nested fields without setting the cursor explicitly. For example, to set a value relative to the current cursor position, you would specify <code>-r struct.sub_struct=bar</code>.</li>
<li>You can move the cursor one level up by using <code>..</code>. Each additional <code>.</code> moves it up one additional level. E.g. <code>...</code> would go three levels up.</li>
</ul>
<h1 id="optional-output-flags">Optional Output Flags</h1>
<p>The method's return value a JSON encoded structure, which will be written to standard output by default.</p>
<ul>
<li><strong>-o out</strong><ul>
<li><em>out</em> specifies the <em>destination</em> to which to write the server's result to.
It will be a JSON-encoded structure.
The <em>destination</em> may be <code>-</code> to indicate standard output, or a filepath that is to contain the received bytes.
If unset, it defaults to standard output.</li>
</ul>
</li>
</ul>
<h1 id="optional-general-properties">Optional General Properties</h1>
<p>The following properties can configure any call, and are not specific to this method.</p>
<ul>
<li>
<p><strong>-p $-xgafv=string</strong></p>
<ul>
<li>V1 error format.</li>
</ul>
</li>
<li>
<p><strong>-p access-token=string</strong></p>
<ul>
<li>OAuth access token.</li>
</ul>
</li>
<li>
<p><strong>-p alt=string</strong></p>
<ul>
<li>Data format for response.</li>
</ul>
</li>
<li>
<p><strong>-p callback=string</strong></p>
<ul>
<li>JSONP</li>
</ul>
</li>
<li>
<p><strong>-p fields=string</strong></p>
<ul>
<li>Selector specifying which fields to include in a partial response.</li>
</ul>
</li>
<li>
<p><strong>-p key=string</strong></p>
<ul>
<li>API key. Your API key identifies your project and provides you with API access, quota, and reports. Required unless you provide an OAuth 2.0 token.</li>
</ul>
</li>
<li>
<p><strong>-p oauth-token=string</strong></p>
<ul>
<li>OAuth 2.0 token for the current user.</li>
</ul>
</li>
<li>
<p><strong>-p pretty-print=boolean</strong></p>
<ul>
<li>Returns response with indentations and line breaks.</li>
</ul>
</li>
<li>
<p><strong>-p quota-user=string</strong></p>
<ul>
<li>Available to use for quota purposes for server-side applications. Can be any arbitrary string assigned to a user, but should not exceed 40 characters.</li>
</ul>
</li>
<li>
<p><strong>-p upload-type=string</strong></p>
<ul>
<li>Legacy upload protocol for media (e.g. &#34;media&#34;, &#34;multipart&#34;).</li>
</ul>
</li>
<li>
<p><strong>-p upload-protocol=string</strong></p>
<ul>
<li>Upload protocol for media (e.g. &#34;raw&#34;, &#34;multipart&#34;).</li>
</ul>
</li>
</ul>
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