Why are modules not being imported?

Question

go

I don't understand how to import modules correctly. Here is a demo I posted:
main.go at the root:

package main

import "./client"

func main() {
  client.TestFunc("Test")
}

And ./client/client.go :

package client

import (
  "fmt"
  "github.com/gorilla/websocket"
)

type Client struct {
  Name string
  conn *websocket.Conn
}

func TestFunc(name string) {
  c := &Client{Name: name}
  fmt.Printf("%s", c.Name)
}

go.mod file:

module test
go 1.14
require github.com/gorilla/websocket v1.4.2

I run : go run main.go and get an error: " client/client.go:5:2: cannot find package ", i.e. it doesn't see github.com/gorilla/websocket in imports. What am I doing wrong? Or should there be a go.mod file for every package? I use package to logically separate the type of namespaces, so that functions belong to the same "class". And go.mod thought it would be like a package manager for the entire application

Answer 1

import "./client"
You can't do that, the import path is always absolute. If your app's module in go.mod is called test, then the import will be test/client

Answer 2

In the go.mod folder, run go build. Also, before using the package, you need to download it via go get