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• What is the Difference between API Observability and API Monitoring
• API Observability: A framework for managing your applications in an API world
• Intro to API Observability
• The RED method: A new strategy for monitoring microservices
• Usando Prometheus para coletar métricas de aplicações Golang
• Collector
• OpenTelemetry Demo Documentation
• [MELT 101](https://newrelic.com/sites/default/files/2022-03/melt-101-four-essential-telemetry-data-types.pd

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├── README.md
├── go.mod
├── go.sum
├── cmd
│   ├── api
│   │   └── main.go
│   └── appctl
│       └── main.go
├── config
│   ├── config.go

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├── cmd
│   ├── api
│   │   └── main.go
│   └── appctl
│       └── main.go

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├── book
│   ├── book.go
│   ├── service.go
│   ├── service_test.go
│   ├── mock
│   │   ├── use_case.go
│   │   ├── repository.go
│   ├── postgres
│   │   ├── book_storage.go
│   │   ├── book_storage_test.go

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package main

import (
	"encoding/json"
	"fmt"
	"log"
	"net/http"
	"time"

	"github.com/charmbracelet/lipgloss"

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package main

import (
	"encoding/json"
	"fmt"
	"log"
	"net/http"
	"time"
)

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package service_test

import (
	"testing"
	"github.com/PicPay/example"
)

func TestFindAll(t *testing.T) {
	s := example.NewService()
	all, err := s.FindAll()

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package service

//NewService create new service
func NewService() *Service {
    return &Service{}
}

//FindAll
func (s *Service) FindAll() ([]*entity.Privilege, error) {
    acl := s.getDefaultPrivileges()

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int open(const char* path, int flags, mode_t permissions);
int close(int fd);
ssize_t read(int fd, void* buffer, size_t count);
ssize_t write(int fd, const void* buffer, size_t count);
off_t lseek(int fd, off_t offset, int referencePosition);

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FileInputStream fileStream = new FileInputStream(fileName);
BufferedInputStream bufferedStream = new BufferedInputStream(fileStream);
ObjectInputStream objectStream = new ObjectInputStream(bufferedStream);