Version 6.4.2 causes error setting base path mappings for API Gateway V1

[Jeremy]

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Bug Report

Error Description

Since our pipeline picked up and used version 6.4.2 it has been failing with an error saying that API Gateway V1 doesn't support the slash character (/) in base path mappings. However this is not the case it is simply that V2 of the API needs to be used for this to work, even for V1.

Please ref to this discussion around something similar using Terraform that mentions the CLI of the same for AWS functionality used here: hashicorp/terraform-provider-aws#21986 (comment)

Our build works fine if we set the version of this plugin to 6.4.1

Command Run
sls deploy.

Console Output

Error:
--
234 | Error: V1 - Unable to update base path mapping for '###.#####.####.com':
235 | API Gateway V1 doesn't support the slash character (/) in base path mappings. To create a multi-level base path mapping, use API Gateway V2.
236 | at APIGatewayV1Wrapper.<anonymous> (/codebuild/output/src/#######/node_modules/serverless-domain-manager/dist/src/aws/api-gateway-v1-wrapper.js:144:23)
237 | at Generator.throw (<anonymous>)
238 | at rejected (/codebuild/output/src/#######/node_modules/serverless-domain-manager/dist/src/aws/api-gateway-v1-wrapper.js:6:65)
239 | at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
240 | ERROR [deploy_serverless]: sls deploy failed

Domain Manager Configuration

custom:
  customDomain:
    domainName: api.blah.blah.com
    basePath: this/is/my/basepath
    stage: dev
    createRoute53Record: false
    endpointType: 'regional'

Versions

• Domain Manager version(s): 6.4.2
• Node/npm version: 18.14.0 / 8
• Serverless Version: 3.72.0
• Lambda Code: JavaScript