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Things I believe

This is a collection of the things I believe about software development. I have worked for years building backend and data processing systems, so read the below within that context.

Agree? Disagree? Feel free to let me know at @JanStette. See also my blog at www.janvsmachine.net.

Fundamentals

Keep it simple, stupid. You ain't gonna need it.

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import (
	"cloud.google.com/go/pubsub"
	"context"
	"fmt"
	"github.com/testcontainers/testcontainers-go/wait"
	"log"
	"net/http"
	"os"
	"time"

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import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.net.Socket;

public final class BasicTcpClient implements AutoCloseable {

    private static final int READ_BUF_LEN = 4096;

    private final Socket socket;

umit

import org.junit.Assert;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.MethodParameter;
import org.springframework.test.annotation.DirtiesContext;
import org.springframework.test.context.junit4.SpringRunner;

umit

apiVersion: v1
clusters:
- cluster:
    certificate-authority: /Users/umitunal/.minikube/ca.crt
    server: https://192.168.99.100:8443
  name: minikube
contexts:
- context:
    cluster: minikube
    user: minikube

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apiVersion: rbac.authorization.k8s.io/v1beta1
kind: ClusterRoleBinding
metadata:
  name: kubernetes-dashboard
  labels:
    k8s-app: kubernetes-dashboard
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: cluster-admin

umit

import org.elasticsearch.action.index.IndexResponse;
import org.elasticsearch.client.Client;
import org.junit.ClassRule;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;
import org.testcontainers.containers.FixedHostPortGenericContainer;
import org.testcontainers.containers.GenericContainer;

umit

version: '2.2'
services:
  elasticsearch:
    image: docker.elastic.co/elasticsearch/elasticsearch:6.2.4
    container_name: elasticsearch
    environment:
      - cluster.name=docker-cluster
      - bootstrap.memory_lock=true
      - "ES_JAVA_OPTS=-Xms512m -Xmx512m"
    ulimits:

umit

            <plugin>
                <groupId>org.liquibase</groupId>
                <artifactId>liquibase-maven-plugin</artifactId>
                <version>3.6.1</version>
                <configuration>

                    <driver>org.postgresql.Driver</driver>
                    <url>jdbc:postgresql://localhost:5432/api</url>
                    <username>root</username>
                    <password>123qwe</password>

umit

import org.springframework.stereotype.Component;
import reactor.core.publisher.Mono;
import reactor.core.scheduler.Schedulers;
import reactor.retry.Retry;
import reactor.retry.RetryExhaustedException;

import java.time.Duration;
import java.util.function.Supplier;

@Component