@arizeai/phoenix-client/dist/src/logger.d.ts

A client for the Phoenix API

export type LogLevel = "debug" | "info" | "warn" | "error" | "silent";
export type Logger = {
    info: (message: string) => void;
    warn: (message: string) => void;
    error: (message: string) => void;
    log: (message: string) => void;
    debug: (message: string) => void;
    table: (data: unknown) => void;
};
/**
 * A logger that does nothing
 */
export declare const noopLogger: {
    info: () => undefined;
    warn: () => undefined;
    error: () => undefined;
    log: () => undefined;
    debug: () => undefined;
    table: () => undefined;
};
/**
 * Creates a logger with the given log level, optionally wrapping a custom logger.
 * If no level is provided, reads PHOENIX_LOG_LEVEL from the environment, defaulting to "info".
 * If a custom logger is provided, it is used as the underlying output target instead of console.
 *
 * Log level hierarchy (lowest to highest): debug < info < warn < error < silent
 * Messages below the configured level are suppressed.
 *
 * @example
 * const logger = createLogger(); // uses PHOENIX_LOG_LEVEL env var, defaults to "info"
 * const logger = createLogger({ level: "debug" }); // show all messages including progress
 * const logger = createLogger({ level: "silent" }); // suppress all output
 * const logger = createLogger({ logger: myWinstonLogger }); // wrap a custom logger
 * const logger = createLogger({ level: "warn", logger: myWinstonLogger }); // custom + level filter
 */
export declare function createLogger({ level, logger, }?: {
    level?: LogLevel;
    logger?: Logger;
}): Logger;
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