RN logger

This package let us use Firebase Crashlytics to generate info logs and track errors.

Install

You can install this library via NPM or YARN.

NPM

npm i @blackbox-vision/react-native-logger

YARN

yarn add @blackbox-vision/react-native-logger

Use case

This library let us solve 4 use cases:

• Set user to track
• Log info
• Log errors
• Log errors in services

Usage

Initialize

import React, { useEffect } from 'react';
import * as logger from '@blackbox-vision/react-native-logger';

const App = () => {
  useEffect(() => {
    logger.initialize()
      .then(() => console.info('logger initialize success'))
      .catch(() => console.info('logger initialize error'));
  }, []);

  return ...
}

Set user to track

import * as logger from "@blackbox-vision/react-native-logger";

import { AuthService } from "../auth-service";

const handleLogin = (email: string, password: string) => {
  logger.info("Login user ...");

  const user = await AuthService.login(email, password);

  if (!!user) {
    await logger.setUser(user.id, {
      fullName: `${user.name} ${user.last_name}`,
      segment: user.segment,
    });

    // Este log va a estar asociado a los datos previamente enviados a Crashlytics
    logger.info("Setteamos el user ...");
  }
};

Info logs

import * as logger from "@blackbox-vision/react-native-logger";

const handleAction = async () => {
  logger.info("some useful information log ...");
};

Error logs

import * as logger from '@blackbox-vision/react-native-logger';

const handleAction = async () => {
  try {
    logger.info('generating log ...');

    // Some async action that could cause an error
    ...

  } catch (err: Error) {
    logger.error('handling error ...', err);
  }
};

Error logs in service consumption

import * as logger from '@blackbox-vision/react-native-logger';

import { httpClient } from '../http-client';

export const login = async (email: string, password: string) => {
  const request = {
    url: `/login`,
    method: `POST`,
    data: {
      email,
      password,
    },
  };

  let response = null;

  try {
    response = await httpClient(request);

    ...
  } catch (err: Error) {
    logger.serviceError(request, response, err);
  }
};

API

logger.initialize(options?)

This function let us initialize the logger.

options

Type: Object

Receives an object that let you configure the crashlytics instance:

• errorCollectionEnabled: Boolean - true - setting this option let you track native errors automatically.

logger.setUser(userId, attributes)

This function let you set user information to track logs and errors.

userId

Type: String

It represents the user ID to track.

attributes

Type: Object

It represents the user related attributes.

logger.setUserAttributes(attributes)

This function let you set additional user attributes.

attributes

Type: Object

It represents the user related attributes.

logger.info(msg)

This function let us send an information log to crashlytics.

msg

Type: String

The message to send.

logger.error(msg, err)

This function let us send an error log to crashlytics.

msg

Type: String

The message to send.

err

Type: Error

The error object to send.

logger.serviceError(req, res, err)

This function let us send an error when a service fails.

req

Type: Request

The request object.

res

Type: Response

The response object.

err

Type: Error

The error object.

Issues

Please, open an issue following one of the issues templates. We will do our best to fix them.

Contributing

If you want to contribute to this project see contributing for more information.

License

Distributed under the MIT license. See LICENSE for more information.