--- title: 'Log streaming: Storj DCS' summary: null url: >- https://www.fastly.com/documentation/guides/integrations/logging-endpoints/object-and-cloud-storage/log-streaming-storj-dcs --- Fastly's [Real-Time Log Streaming](https://www.fastly.com/documentation/guides/integrations/streaming-logs/about-fastlys-realtime-log-streaming-features) feature can send log files to [Storj DCS](https://www.storj.io), a decentralized object storage service that is S3 compatible and end-to-end encrypted by default. > **NOTE:** > > Fastly does not provide direct support for third-party services. Read [Fastly's Terms of Service](https://www.fastly.com/terms) for more information. > > ## Prerequisites Before adding Storj DCS as a logging endpoint for Fastly services, you will need to create a [Storj DCS account](https://www.storj.io/signup/), [project and access credentials](https://docs.storj.io/getting-started/quickstart-uplink-cli/uploading-your-first-object/create-first-access-grant), and a [bucket](https://docs.storj.io/dcs/getting-started/quickstart-uplink-cli/uploading-your-first-object/create-a-bucket) that will store the log output. ## Adding Storj DCS as a logging endpoint > **IMPORTANT:** This logging endpoint is only available for Fastly's Deliver (VCL-based) services, not for Compute services. Follow these instructions to add Storj DCS as a logging endpoint: ### Cdn Services 1. Review the information in our guide to [setting up remote log streaming](/guides/integrations/streaming-logs/setting-up-remote-log-streaming). 2. Click the Amazon Web Services S3 logo. 3. Fill out the **Create an Amazon S3 endpoint** fields as follows: - In the **Name** field, enter a human-readable name for the endpoint. - In the **Placement** area, select where the logging call should be placed in the generated VCL. Valid values are **Format Version Default** and **None**. Read our guide on [changing log placement](/guides/integrations/streaming-logs/changing-log-placement) for more information. - In the **Log format** field, optionally enter an Apache-style string or VCL variables to use for log formatting. Consult the [example format section](#example-format) for details. - *(Optional)* In the **Timestamp format** field, enter a timestamp format for log files. The default is an `strftime` compatible string. Our guide on [changing where log files are written](/guides/integrations/streaming-logs/changing-where-log-files-are-written) provides more information. - In the **Bucket name** field, enter the name of the Storj DCS bucket in which to store the logs. - In the **Access method** area, select **User Credentials**. - In the **Access key** field, enter the access key associated with the Storj DCS bucket. - In the **Secret key** field, enter the secret key associated with the Storj DCS bucket. - _(Optional)_ In the **Period** field, enter an interval (in seconds) to control how frequently your log files are rotated. This value defaults to `3600` seconds. - *(Optional)* In the **Period** field, enter an interval (in seconds) to control how frequently your log files are rotated. Rotation entails the finalization of one file object and the start of a new one, never removing any previously created file object. This value defaults to `3600` seconds. 4. Click **Advanced options** and fill out the fields as follows: - *(Optional)* In the **Path** field, enter the path within the bucket to store the files. The path ends with a trailing slash. If this field is left empty, the files will be saved in the bucket's root path. Our guide on [changing where log files are written](/guides/integrations/streaming-logs/changing-where-log-files-are-written) provides more information. - In the **Domain** field, enter the fully qualified hostname of any Storj DCS Gateway. - *(Optional)* In the **PGP public key** field, enter a PGP public key that Fastly will use to encrypt your log files before writing them to disk. You will only be able to read the contents by decrypting them with your private key. The PGP key should be in [PEM (Privacy-Enhanced Mail) format](https://en.wikipedia.org/wiki/Privacy-enhanced_Electronic_Mail). Read our guide on [log encryption](/guides/integrations/streaming-logs/encrypting-logs) for more information. - In the **Select a log line format** area, select the log line format for your log messages. Our guide on [changing log line formats](/guides/integrations/streaming-logs/changing-log-line-formats) provides more information. - *(Optional)* In the **Compression** field, select the compression format you want applied to the log files. Our guide on [changing log compression options](/guides/integrations/streaming-logs/changing-log-compression-options) provides more information. - From the **Redundancy level** menu, select a setting. This value defaults to **Standard**. - _(Optional)_ In the **Server side encryption** area, select an encryption method to protect files that Fastly writes to your Storj DCS bucket. Valid values are **None** and **AES-256**. 5. Click **Create** to create the new logging endpoint. 6. From the **Activate** menu, select **Activate on Production** to deploy your configuration changes. ### Example format The following is an example format string for sending data to Storj DCS. Our discussion of [format strings](https://www.fastly.com/documentation/guides/integrations/streaming-logs/custom-log-formats) provides more information. ```plaintext { "timestamp": "%{strftime(\{"%Y-%m-%dT%H:%M:%S%z"\}, time.start)}V", "client_ip": "%{req.http.Fastly-Client-IP}V", "geo_country": "%{client.geo.country_name}V", "geo_city": "%{client.geo.city}V", "host": "%{if(req.http.Fastly-Orig-Host, req.http.Fastly-Orig-Host, req.http.Host)}V", "url": "%{json.escape(req.url)}V", "request_method": "%{json.escape(req.method)}V", "request_protocol": "%{json.escape(req.proto)}V", "request_referer": "%{json.escape(req.http.referer)}V", "request_user_agent": "%{json.escape(req.http.User-Agent)}V", "response_state": "%{json.escape(fastly_info.state)}V", "response_status": %{resp.status}V, "response_reason": %{if(resp.response, "%22"+json.escape(resp.response)+"%22", "null")}V, "response_body_size": %{resp.body_bytes_written}V, "fastly_server": "%{json.escape(server.identity)}V", "fastly_is_edge": %{if(fastly.ff.visits_this_service == 0, "true", "false")}V } ``` ## Related content - [Storj DCS Object Storage](https://www.fastly.com/documentation/guides/integrations/non-fastly-services/storj-dcs-object-storage) - [API reference: Amazon S3 log streaming](https://www.fastly.com/documentation/reference/api/logging/s3/) - [CLI reference: Amazon S3 log streaming](https://www.fastly.com/documentation/reference/cli/logging/s3/)