Huz.Com > Component > Logger

• Logger with environment based severity and separation of concerns

Standards

• Language: TS
• Eslint: Yes
• Static Code Analysis: Yes IntelliJ Code Inspections
• DDD - Document Driven: Yes
• EDD - Exception Driven: Yes
• TDD - Test Driven: Yes go to test folder
• Standards Complied: Huz Standards

Commands

• npm run clear // clears "dist" folder
• npm run lint // runs eslint for static code analysis
• npm run test // runs test files in "test" folder
• npm run build // builds JS files at "dist" folder
• npm publish or npm run publix // publishes "dist" folder to npm

Install

npm i @huz-com/logger

Structure

• logger.severity(...names: Array).concern(data: unknown);

• severity:

  • ifLocal
  • ifDevelopment
  • ifTesting
  • ifStaging
  • ifProduction
  • ifPriorityOk
  • ifEnvironmentOk

• concern:

  • error
  • endpoint
  • info
  • request
  • response

SEVERITY / PRIORITY

//environments: prod, stage, test, dev
//priorities: prod:0, stage: 1, test:2, dev: 3, isLocal:4

const {logger} = require('@huz-com/logger');

// --- EASY

// runs if registry.isLocal:true (not important environment)
logger.ifLocal('your description', 'sub-description');

// runs if registry.environment is dev
logger.ifDevelopment('your description', 'sub-description');

// runs if registry.environment istest or dev
logger.ifTesting('your description', 'sub-description');

// runs if registry.environment is stage or test or dev
logger.ifStaging('your description', 'sub-description');

// runs in all conditions
logger.ifProduction('your description', 'sub-description');

// --- DYNAMIC

// runs if given environment is fixed current environment
logger.ifEnvironmentOk('dev', 'your description', 'sub-description');

// runs if given priority is fixed current environment's priority
logger.ifPriorityOk(3, 'your description', 'sub-description');

SEPARATION OF CONCERNS

//error, endpoint, info, request, response

const {logger} = require('@huz-com/logger');

// --- error
// To log errors
try {
    // ...
} catch (e) {
    // it logs if registry.isLocal, else ignore it
    logger.ifLocal('your description', 'sub-description')
        .error(e);
}

// --- info
// to log any general data

// it logs if registry.environment is dev or test
logger.ifTesting('some log')
    .info('any data with any type');

// --- endpoint
// to log endpoint calls

// it logs if registry.environment is dev
logger.ifDevelopment('game get')
    .endpoint({
        method: 'GET', // optional, httpMethodEnum
        url: '/v1/games/4555', // string.Folder
        duration: 34 // optional, Integer
    });
    

// --- request
// to log remote api requesting (ie: before axios call)

// it logs if registry.environment is stage, test, dev
logger.ifStaging('call some api')
    .request({
        method: 'GET', // optional, httpMethodEnum
        url: 'https://domain.com/v1/some-path', // optional, url of api
        query: {key1: 'value1'}, // optional, query parameters
        headers: {key1: 'value1'}, // optional, outgoing headers
        payload: 'any content or json object', // optional, outgoing payload
        config: {}, // optional, other request configs
    }); 


// --- response
// to log remote api responsed successively (ie: after axios call)

// it logs if registry.environment is stage, test, dev, prod
logger.ifProduction('response of an api')
    .response({
        status: 200, // optional, incoming http status
        body: 'any content or json object', // optional, incoming body
        headers: {key1: 'value1'}, // optional, incoming headers
    });