# Create a new Stream. **POST /v1/Services/{ServiceSid}/Streams** Create a new Stream. ## Servers - https://sync.twilio.com: https://sync.twilio.com () ## Authentication methods - Account sid auth token ## Parameters ### Path parameters - **ServiceSid** (string) The SID of the [Sync Service](https://www.twilio.com/docs/sync/api/service) to create the new Stream in. ### Body: application/x-www-form-urlencoded (object) - **UniqueName** (string) An application-defined string that uniquely identifies the resource. This value must be unique within its Service and it can be up to 320 characters long. The `unique_name` value can be used as an alternative to the `sid` in the URL path to address the resource. - **Ttl** (integer) How long, [in seconds](https://www.twilio.com/docs/sync/limits#sync-payload-limits), before the Stream expires and is deleted (time-to-live). ## Responses ### 201 Created #### Headers - **Access-Control-Allow-Origin** (string) Specify the origin(s) allowed to access the resource - **Access-Control-Allow-Methods** (string) Specify the HTTP methods allowed when accessing the resource - **Access-Control-Allow-Headers** (string) Specify the headers allowed when accessing the resource - **Access-Control-Allow-Credentials** (boolean) Indicates whether the browser should include credentials - **Access-Control-Expose-Headers** (string) Headers exposed to the client #### Body: application/json (object) - **sid** (string | null) The unique string that we created to identify the Sync Stream resource. - **unique_name** (string | null) An application-defined string that uniquely identifies the resource. It can be used in place of the resource's `sid` in the URL to address the resource. - **account_sid** (string | null) The SID of the [Account](https://www.twilio.com/docs/iam/api/account) that created the Sync Stream resource. - **service_sid** (string | null) The SID of the [Sync Service](https://www.twilio.com/docs/sync/api/service) the resource is associated with. - **url** (string(uri) | null) The absolute URL of the Message Stream resource. - **links** (object(uri-map) | null) The URLs of the Stream's nested resources. - **date_expires** (string(date-time) | null) The date and time in GMT when the Message Stream expires and will be deleted, specified in [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601) format. If the Message Stream does not expire, this value is `null`. The Stream might not be deleted immediately after it expires. - **date_created** (string(date-time) | null) The date and time in GMT when the resource was created specified in [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601) format. - **date_updated** (string(date-time) | null) The date and time in GMT when the resource was last updated specified in [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601) format. - **created_by** (string | null) The identity of the Stream's creator. If the Stream is created from the client SDK, the value matches the Access Token's `identity` field. If the Stream was created from the REST API, the value is 'system'. [Powered by Bump.sh](https://bump.sh)