Advanced Serialization

Hive Logger uses advanced serialization to ensure that all attributes are logged safely and readably, even when they contain complex or circular data structures. This means you can log rich, nested objects or errors as attributes without worrying about serialization failures or unreadable logs.

For example, the logger will serialize the error object, including its message and stack, in a safe and readable way. This advanced serialization is applied automatically to all attributes passed to log methods, child loggers, and writers.

import { Logger } from "@graphql-hive/logger";

const log = new Logger();

class DatabaseError extends Error {
  constructor(message: string) {
    super(message);
    this.name = "DatabaseError";
  }
}
const dbErr = new DatabaseError("Connection failed");
const userErr = new Error("Updating user failed", { cause: dbErr });
const errs = new AggregateError([dbErr, userErr], "Failed to update user");

log.error(errs);
2025-04-10T14:00:00.000Z ERR
  stack: "AggregateError: Failed to update user
      at <anonymous> (/project/example.js:13:14)
      at ModuleJob.run (node:internal/modules/esm/module_job:274:25)
      at async onImport.tracePromise.__proto__ (node:internal/modules/esm/loader:644:26)
      at async asyncRunEntryPointWithESMLoader (node:internal/modules/run_main:98:5)"
  message: "Failed to update user"
  errors: [
    {
      stack: "DatabaseError: Connection failed
          at <anonymous> (/project/example.js:11:15)
          at ModuleJob.run (node:internal/modules/esm/module_job:274:25)
          at async onImport.tracePromise.__proto__ (node:internal/modules/esm/loader:644:26)
          at async asyncRunEntryPointWithESMLoader (node:internal/modules/run_main:98:5)"
      message: "Database connection failed"
      name: "DatabaseError"
      class: "DatabaseError"
    }
    {
      stack: "Error: Updating user failed
          at <anonymous> (/project/example.js:12:17)
          at ModuleJob.run (node:internal/modules/esm/module_job:274:25)
          at async onImport.tracePromise.__proto__ (node:internal/modules/esm/loader:644:26)
          at async asyncRunEntryPointWithESMLoader (node:internal/modules/run_main:98:5)"
      message: "Updating user failed"
      cause: {
        stack: "DatabaseError: Connection failed
            at <anonymous> (/project/example.js:11:15)
            at ModuleJob.run (node:internal/modules/esm/module_job:274:25)
            at async onImport.tracePromise.__proto__ (node:internal/modules/esm/loader:644:26)
            at async asyncRunEntryPointWithESMLoader (node:internal/modules/run_main:98:5)"
        message: "Database connection failed"
        name: "DatabaseError"
        class: "DatabaseError"
      }
      name: "Error"
      class: "Error"
    }
  ]
  name: "AggregateError"
  class: "AggregateError"