---
title: "Discussion on \"How to Load a .env File into a Go Struct with Viper\" | Hashnode"
description: "Discussion on \"How to Load a .env File into a Go Struct with Viper\". Read a .env file in Go with Viper and decode its values into a struct using mapstructure tags."
url: "https://hashnode.com/posts/how-to-load-a-env-file-into-a-go-struct-with-viper/6ad07eaca7724e256eddf7cd"
---

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# [How to Load a .env File into a Go Struct with Viper](https://ara-ta3.hashnode.dev/how-to-load-a-env-file-into-a-go-struct-with-viper?utm_source=hashnode&utm_medium=feed)

Read a .env file in Go with Viper and decode its values into a struct using mapstructure tags.

Oct 15 · 3 min read · ara-ta3.hashnode.dev  
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-   [#go](https://hashnode.com/tag/go)
-   [#viper](https://hashnode.com/tag/viper)
-   [#configuration](https://hashnode.com/tag/configuration)

## Written by

[ara-ta3](https://hashnode.com/@ara-ta3)

@ara-ta3 · Japan

  
[View profile](https://hashnode.com/@ara-ta3)

Backend-focused Web Engineer | Scala × TypeScript | Designing robust, data-driven systems

I’m a backend-focused web engineer with a strong interest in system design, domain modeling, and data-driven architecture. I primarily work with Scala (ZIO, functional patterns) and TypeScript, and I enjoy building reliable APIs, CQRS-based systems, and well-structured monorepos. Beyond coding, I’m interested in finance, optimization, and using technology (including AI) to improve decision-making and productivity. I write about software architecture, engineering workflows, and practical problem-solving.

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