{"record":{"id":"86df3fd0ef631983","repo":"grafana/k6","slug":"copying-data-to-file-w","errorCode":null,"errorMessage":"copying data to file: %w","messagePattern":"copying data to file: %w","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"internal/js/modules/k6/browser/storage/file_persister.go","lineNumber":45,"sourceCode":"\tdir := filepath.Dir(cp)\n\tif err = os.MkdirAll(dir, 0o755); err != nil { //nolint:forbidigo,gosec\n\t\treturn fmt.Errorf(\"creating a local directory %q: %w\", dir, err)\n\t}\n\n\tf, err := os.OpenFile(cp, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0o600) //nolint:forbidigo\n\tif err != nil {\n\t\treturn fmt.Errorf(\"creating a local file %q: %w\", cp, err)\n\t}\n\tdefer func() {\n\t\tif cerr := f.Close(); cerr != nil && err == nil {\n\t\t\terr = fmt.Errorf(\"closing the local file %q: %w\", cp, cerr)\n\t\t}\n\t}()\n\n\tbf := bufio.NewWriter(f)\n\n\tif _, err := io.Copy(bf, data); err != nil {\n\t\treturn fmt.Errorf(\"copying data to file: %w\", err)\n\t}\n\n\tif err := bf.Flush(); err != nil {\n\t\treturn fmt.Errorf(\"flushing data to disk: %w\", err)\n\t}\n\n\treturn nil\n}\n\n// RemoteFilePersister is to be used when files created by the browser module need\n// to be uploaded to a remote location. This uses a presignedURLRequestURL to\n// retrieve one presigned URL. The presigned url is used to upload the file\n// to the remote location.\ntype RemoteFilePersister struct {\n\tpresignedURLRequestURL string\n\theaders                map[string]string\n\tbasePath               string\n","sourceCodeStart":27,"sourceCodeEnd":63,"githubUrl":"https://github.com/grafana/k6/blob/93accf6570dcd306ca5e99cc44c393ee3797761b/internal/js/modules/k6/browser/storage/file_persister.go#L27-L63","documentation":"Error \"copying data to file: %w\" thrown in grafana/k6.","triggerScenarios":"Thrown at internal/js/modules/k6/browser/storage/file_persister.go:45 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":[],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"93accf6570dcd306ca5e99cc44c393ee3797761b","analyzedAt":"2026-08-15T21:23:27.118Z","schemaVersion":2},"datasetVersion":"2026-08-15T22:17:37.221Z"}