{"record":{"id":"47e2bab788506436","repo":"linshenkx/prompt-optimizer","slug":"s3-endpoint-bucket-access-key-and-secret-key-ar","errorCode":null,"errorMessage":"S3 endpoint, bucket, access key, and secret key are required","messagePattern":"S3 endpoint, bucket, access key, and secret key are required","errorType":"exception","errorClass":"Error","httpStatus":null,"severity":"error","filePath":"packages/ui/src/utils/remote-backup.ts","lineNumber":1705,"sourceCode":"    return joinRemotePath(this.prefix(), path)\n  }\n\n  private listPrefixForPath(path: string): string {\n    return `${this.keyForPath(path)}/`\n  }\n\n  private pathFromKey(key: string): string {\n    const prefix = this.prefix()\n    return key === prefix\n      ? ''\n      : key.startsWith(`${prefix}/`)\n        ? key.slice(prefix.length + 1)\n        : key\n  }\n\n  private assertConfigured(): void {\n    if (!this.config.endpoint || !this.config.bucket || !this.config.accessKeyId || !this.config.secretAccessKey) {\n      throw new Error('S3 endpoint, bucket, access key, and secret key are required')\n    }\n  }\n}\n\nclass CloudflareR2RemoteObjectStore extends S3CompatibleRemoteObjectStore {\n  provider: RemoteBackupProviderKind = 'cloudflare-r2'\n\n  constructor(config: Extract<RemoteBackupProviderConfig, { kind: 'cloudflare-r2' }>) {\n    super(toCloudflareR2S3Config(config))\n  }\n}\n\nexport const createRemoteObjectStore = (\n  provider: RemoteBackupProviderConfig,\n  runtime: RemoteBackupRuntime = 'web',\n): RemoteObjectStore => {\n  if (runtime === 'desktop') {\n    if (provider.kind === 'google-drive') {","sourceCodeStart":1687,"sourceCodeEnd":1723,"githubUrl":"https://github.com/linshenkx/prompt-optimizer/blob/3e677b1d9f7e0493c142c175560531e7ae786dce/packages/ui/src/utils/remote-backup.ts#L1687-L1723","documentation":"assertConfigured() runs before S3 operations and requires endpoint, bucket, accessKeyId and secretAccessKey all set. Missing any one throws this configuration error before any network call.","triggerScenarios":"Constructing/using an S3/R2 provider config where any of endpoint, bucket, accessKeyId, secretAccessKey is empty — blank settings form, partial import, or UI saving defaults.","commonSituations":"User filled only some S3 fields; config import dropped secret keys (intentionally excluded from exports); env-driven config missing at runtime.","solutions":["Fill all four required fields in the S3/R2 provider settings (endpoint URL, bucket, access key id, secret access key)","Validate the config form before save: all four fields non-empty","Re-enter secrets after importing a config — secrets are typically not exported"],"exampleFix":"// before\n{ kind: 'cloudflare-r2', endpoint: '', bucket: 'backups', accessKeyId: '', secretAccessKey: '' }\n// after\n{ kind: 'cloudflare-r2', endpoint: 'https://<account>.r2.cloudflarestorage.com', bucket: 'backups', accessKeyId: 'AKI...', secretAccessKey: '...' }","handlingStrategy":"validation","validationCode":"const { endpoint, bucket, accessKeyId, secretAccessKey } = s3Config\nconst isValid = [endpoint, bucket, accessKeyId, secretAccessKey].every(v => v && v.trim())","typeGuard":"const isS3ConfigComplete = (c: RemoteBackupProviderConfig): boolean => c.kind !== 'cloudflare-r2' && c.kind !== 's3' ? true : Boolean(c.endpoint && c.bucket && c.accessKeyId && c.secretAccessKey)","tryCatchPattern":null,"preventionTips":["Require all four S3 fields in the settings form","Re-enter secrets after config import"],"tags":["s3","configuration","missing-credentials"],"backgroundTag":"missing-configuration","analyzedSha":"3e677b1d9f7e0493c142c175560531e7ae786dce","analyzedAt":"2026-08-27T21:29:16.709Z","schemaVersion":2},"datasetVersion":"2026-08-28T00:17:15.603Z"}