{"id":"54cefda923fe273f","repo":"jackc/pgx","slug":"config-must-be-created-by-parseconfig-54cefd","errorCode":null,"errorMessage":"config must be created by ParseConfig","messagePattern":"config must be created by ParseConfig","errorType":"panic","errorClass":null,"httpStatus":null,"severity":"error","filePath":"pgxpool/pool.go","lineNumber":224,"sourceCode":"// ConnString returns the connection string as parsed by pgxpool.ParseConfig into pgxpool.Config.\nfunc (c *Config) ConnString() string { return c.ConnConfig.ConnString() }\n\n// New creates a new Pool. See [ParseConfig] for information on connString format.\nfunc New(ctx context.Context, connString string) (*Pool, error) {\n\tconfig, err := ParseConfig(connString)\n\tif err != nil {\n\t\treturn nil, err\n\t}\n\n\treturn NewWithConfig(ctx, config)\n}\n\n// NewWithConfig creates a new [Pool]. config must have been created by [ParseConfig].\nfunc NewWithConfig(ctx context.Context, config *Config) (*Pool, error) {\n\t// Default values are set in ParseConfig. Enforce initial creation by ParseConfig rather than setting defaults from\n\t// zero values.\n\tif !config.createdByParseConfig {\n\t\tpanic(\"config must be created by ParseConfig\")\n\t}\n\n\tprepareConn := config.PrepareConn\n\tif prepareConn == nil && config.BeforeAcquire != nil {\n\t\tprepareConn = func(ctx context.Context, conn *pgx.Conn) (bool, error) {\n\t\t\treturn config.BeforeAcquire(ctx, conn), nil\n\t\t}\n\t}\n\n\tp := &Pool{\n\t\tconfig:                config,\n\t\tbeforeConnect:         config.BeforeConnect,\n\t\tafterConnect:          config.AfterConnect,\n\t\tprepareConn:           prepareConn,\n\t\tafterRelease:          config.AfterRelease,\n\t\tbeforeClose:           config.BeforeClose,\n\t\tminConns:              config.MinConns,\n\t\tminIdleConns:          config.MinIdleConns,","sourceCodeStart":206,"sourceCodeEnd":242,"githubUrl":"https://github.com/jackc/pgx/blob/ec1a0befd22592cffffdeeb0a50311b506372f4c/pgxpool/pool.go#L206-L242","documentation":"Error \"config must be created by ParseConfig\" thrown in jackc/pgx.","triggerScenarios":"Thrown at pgxpool/pool.go:224 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":[],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"analyzedSha":"ec1a0befd22592cffffdeeb0a50311b506372f4c","analyzedAt":"2026-08-04T22:52:11.263Z","schemaVersion":2}