A Day in the Life of a Go Developer: Code, Microservices, and Production Silence

Introduction: Myths and Reality of a Go Programmer

In the IT community, there are two polarizing opinions about the work of a Go developer. Some say it's a perfectionist's paradise: strict typing, no class inheritance, and lightning-fast compilation. Others say it's endless if err != nil and fighting with generics (even though they've already been added).

Where is the truth? What is a Go developer's workday really like in an average company that writes high-load microservices? Today I'll open the door to my reality. No fluff — just code, tools, and real cases.

I work at a product company where Golang is the main backend language. Our stack: gRPC, PostgreSQL, Kafka, Kubernetes. A typical story for modern Go development. Let's go.

08:30 — Morning: Plan and Code Review

The day starts not with coffee, but with checking notifications in GitLab and Slack. While the brain is fresh, it's the best time to review colleagues' Merge Requests.

Morning Routine: What do I check first?

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• CI/CD errors — if the build failed overnight, that's the first task.
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• Comments on my code — in Go, detailed reviews are standard.
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• Monitoring graphs — did latency increase after yesterday's deployment.
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Speaking of code review. There's an unwritten rule in the Go community: code should be simple. If you write a complex wheel, you'll get rejected in review. An example of a typical comment from a senior:

// Bad: excessive abstraction\ntype Processor interface {\n    Process(ctx context.Context, data []byte) ([]byte, error)\n}\n\n// Good: just a function\nfunc Process(ctx context.Context, data []byte) ([]byte, error) {\n    // logic\n}\n

At 09:00 — daily standup. We don't waste time on long stories. Format: what I did yesterday, what I'll do today, any blockers. No "how was your evening".

09:30 — Diving into Code: Writing a Microservice in Go

Today's plan is to improve the notification service. This is a classic microservice in Go that receives events from Kafka and sends email/push. Task: add template support.

First, I open the project structure. In Go, a minimalist folder tree is standard:

notifier/\n├── cmd/\n│   └── server/\n│       └── main.go\n├── internal/\n│   ├── handler/\n│   ├── service/\n│   └── repository/\n├── pkg/\n│   └── models/\n└── go.mod\n

I start with the data model. In Go, for database work, people often use Go ORM (e.g., GORM) or pure SQL queries via sqlx. I prefer sqlx — less magic, more control.

type Template struct {\n    ID      int64  `db:"id"`\n    Name    string `db:"name"`\n    Content string `db:"content"`\n    CreatedAt time.Time `db:"created_at"`\n}\n\nfunc (r *Repository) GetTemplateByName(ctx context.Context, name string) (*Template, error) {\n    var t Template\n    err := r.db.GetContext(ctx, &t, "SELECT * FROM templates WHERE name = $1", name)\n    if err != nil {\n        return nil, fmt.Errorf("get template: %w", err)\n    }\n    return &t, nil\n}\n

Notice the error handling. In Golang, there's no try-catch. Every function call is checked for errors. This isn't a bug, it's a feature — the code becomes predictable. In 5 years of work, I've never caught an unexpected null pointer in production.

11:00 — Integration with gRPC

The next step is to add a gRPC endpoint for the admin panel. In modern Go development, gRPC has become the standard for internal services. It's faster than REST and generates clients automatically.

First, I describe the proto file:

syntax = "proto3";\n\npackage notifier;\n\nservice TemplateService {\n    rpc CreateTemplate (CreateTemplateRequest) returns (TemplateResponse);\