Writing to the execution log in API Gateway

If you do not have the Yandex Cloud (CLI) command line interface yet, install and initialize it.

The folder specified when creating the CLI profile is used by default. To change the default folder, use the yc config set folder-id <folder_ID> command. You can specify a different folder using the --folder-name or --folder-id parameter.

Logging destination

If a custom log group is not specified in the API gateway parameters or logging is not turned off, the API gateway automatically writes all logs to the default log group for the folder it resides in.

To write logs to a custom log group, provide the log group ID in the --log-group-id parameter when creating or modifying an API gateway. The log group must reside in the same folder as the API gateway.

Minimum logging level

To set a minimum logging level, provide it in the --min-log-level parameter when creating or modifying an API gateway.

If you set the minimum logging level, logs of that level and higher will be written to the execution log. With no minimum logging level set, all API gateway logs will be written to the execution log.

Disabling logging

To disable logging, set the --no-logging parameter when creating or modifying an API gateway.

Command example

To write logs to a custom log group, run this command:

yc serverless api-gateway update <API_gateway_name_or_ID> \
  --log-group-id <log_group_ID> \
  --min-log-level <minimum_logging_level>

Where:

• --log-group-id: ID of the log group to write logs to.
• --min-log-level: Minimum logging level. The available levels are TRACE, DEBUG, INFO, WARN, ERROR, and FATAL. This is an optional parameter.

Result:

id: d5dr8k465604********
folder_id: b1g3f9i71bpm********
created_at: "2024-01-26T09:18:55.985Z"
name: example_gateway
status: ACTIVE
domain: d5dm1lba80md********.i9******.apigw.yandexcloud.net
log_group_id: ckgsh1kdbvj1********
connectivity: {}
log_options:
  log_group_id: e23u2vn449av********
  min_level: ERROR

With Terraform, you can quickly create a cloud infrastructure in Yandex Cloud and manage it using configuration files. These files store the infrastructure description written in HashiCorp Configuration Language (HCL). If you change the configuration files, Terraform automatically detects which part of your configuration is already deployed, and what should be added or removed.

Terraform is distributed under the Business Source License. The Yandex Cloud provider for Terraform is distributed under the MPL-2.0 license.

For more information about the provider resources, see the documentation on the Terraform website or mirror website.

If you do not have Terraform yet, install it and configure its Yandex Cloud provider.

Logging destination

If a custom log group is not specified in the API gateway parameters or logging is not turned off, the API gateway automatically writes all logs to the default log group for the folder it resides in.

To write logs to a custom log group, under log_options, provide the log group ID in the log_group_id parameter when creating or modifying an API gateway. The log group must reside in the same folder as the API gateway.

Minimum logging level

To set a minimum logging level, provide it in the log_group_id parameter under log_options when creating or modifying an API gateway.

If you set the minimum logging level, logs of that level and higher will be written to the execution log. With no minimum logging level set, all API gateway logs will be written to the execution log.

Disabling logging

To disable logging, under log_options, set the disabled parameter to true when creating or modifying an API gateway.

Example

To write logs to a custom log group:

1. Open the Terraform configuration file and add the log_options section to the yandex_api_gateway resource description:

   Here is an example of the configuration file structure:

   resource "yandex_api_gateway" "<API_gateway_name>" {
     ...
     log_options {
       folder_id = "<folder_ID>"
       min_level = "<minimum_logging_level>"
     }
     ...
   }
   

   Where:

   • folder_id: Folder ID.
   • min_level: Minimum logging level. The available levels are TRACE, DEBUG, INFO, WARN, ERROR, and FATAL. This is an optional parameter.

   For more information about the yandex_api_gateway resource parameters in Terraform, see the relevant provider documentation.

2. Check the configuration using this command:

   terraform validate
   

   If the configuration is correct, you will get this message:

   Success! The configuration is valid.
   

3. Run this command:

   terraform plan
   

   The terminal will display a list of resources with parameters. No changes will be made at this step. If the configuration contains any errors, Terraform will point them out.

4. Apply the configuration changes:

   terraform apply
   

5. Confirm the changes: type yes into the terminal and press Enter.

To write to the execution log in Yandex API Gateway, use the update REST API method for the ApiGateway resource or the ApiGatewayService/Update gRPC API call.