Problem installing

[rikgale]

Hello
I am trying to install this so I can cache OpenAIP tiles for my Virtual Radar Server set up.
Firstly I would like to make it clear that I have 0 knowledge about Go - other than what I have tried to pick up in the last couple of hours before throwing my arms up and asking for help.

I have installed the latest version of Golang 1.20.3 and my GoPath and envars are set as

GO111MODULE="auto"
GOARCH="arm64"
GOBIN=""
GOCACHE="/home/pi/.cache/go-build"
GOENV="/home/pi/.config/go/env"
GOEXE=""
GOEXPERIMENT=""
GOFLAGS=""
GOHOSTARCH="arm64"
GOHOSTOS="linux"
GOINSECURE=""
GOMODCACHE="/home/pi/go/pkg/mod"
GONOPROXY=""
GONOSUMDB=""
GOOS="linux"
GOPATH="/home/pi/go"
GOPRIVATE=""
GOPROXY="https://proxy.golang.org,direct"
GOROOT="/usr/local/go"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/usr/local/go/pkg/tool/linux_arm64"
GOVCS=""
GOVERSION="go1.20.3"
GCCGO="gccgo"
AR="ar"
CC="gcc"
CXX="g++"
CGO_ENABLED="1"
GOMOD=""
GOWORK=""
CGO_CFLAGS="-O2 -g"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-O2 -g"
CGO_FFLAGS="-O2 -g"
CGO_LDFLAGS="-O2 -g"
PKG_CONFIG="pkg-config"
GOGCCFLAGS="-fPIC -pthread -Wl,--no-gc-sections -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build3601150535=/tmp/go-build -gno-r

I downloaded the repo and placed in /home/pi/go-maptilecache

I created a file called cache.go in /home/pi and added the config as suggested in the front page

ran go run cache.go

got

cache.go:7:5: cannot find package "github.com/Christian1984/go-maptilecache" in any of:
        /usr/local/go/src/github.com/Christian1984/go-maptilecache (from $GOROOT)
        /home/pi/go/src/github.com/Christian1984/go-maptilecache (from $GOPATH)

I am probably doing something very wrong, but I have no idea what.

Any help/guidance greatly apprecaited. :)

[Christian1984]

Hi there! If I understand correctly, you have downloaded the package locally but not properly added it to your go path. Have you tried downloading the package via go get github.com/Christian1984/go-maptilecache. This should add the module along with its dependencies to your gopath. Also, make sure to check out the example projects in /example.

Is cache.go you are referring to above a program you wrote yourself?

[rikgale]

Thanks for getting back to me.

I have now dowloaded via go get github.com/Christian1984/go-maptilecache as suggested. It placed the files here :/home/pi/go/src/github.com/Christian1984/go-maptilecache/

cache.go contained what was on your front page of the repo

package main

import (
    "net/http"
    "time"

    "github.com/Christian1984/go-maptilecache"
)

func main() {
    // create an in-memory cache that can be shared across multiple maptile caches
	sharedMemoryCacheConfig := maptilecache.SharedMemoryCacheConfig{
		MaxSizeBytes:          256 * 1024 * 1024,
		EnsureMaxSizeInterval: 10 * time.Second,
		DebugLogger:           maptilecache.PrintlnDebugLogger,
		InfoLogger:            maptilecache.PrintlnInfoLogger,
		WarnLogger:            maptilecache.PrintlnWarnLogger,
		ErrorLogger:           maptilecache.PrintlnErrorLogger,
	}
	sharedMemoryCache := maptilecache.NewSharedMemoryCache(sharedMemoryCacheConfig)

    // create one or more maptile caches
	oaipAirportsCacheConfig := maptilecache.CacheConfig{
		Port:              "9001"
		Route:             []string{"maptilecache", "oaip-airports"},
		UrlScheme:         "https://api.tiles.openaip.net/api/data/airports/{z}/{x}/{y}.png?apiKey={apiKey}",
		TimeToLive:        10 * 24 * time.Hour,
		ForwardHeaders:    false, // required for openAIP, default treu works for most APIs
		SharedMemoryCache: sharedMemoryCache,
		ApiKey:            secrets.OAPI_API_KEY,
		DebugLogger:       maptilecache.PrintlnDebugLogger,
		InfoLogger:        maptilecache.PrintlnInfoLogger,
		WarnLogger:        maptilecache.PrintlnWarnLogger,
		ErrorLogger:       maptilecache.PrintlnErrorLogger,
		StatsLogDelay:     1 * time.Hour,
	}
	maptilecache.New(oaipAirportsCacheConfig)
}

... as I was not sure where to use this information.

Ignoring the cache.go as I am sure it is not needed... I added my OpenAIP key to the secrect.go.example file and then tried go run "/home/pi/go/src/github.com/Christian1984/go-maptilecache/example/cache/example.go" which threw this error

package command-line-arguments
        imports github.com/Christian1984/go-maptilecache/example/cache/secrets: no Go files in /home/pi/go/src/github.com/Christian1984/go-maptilecache/example/cache/secrets

Many thanks for your help so far.
Kind regards
Rik