I'm very confused on the set up of Golang.
I downloaded go_appengine_sdk_darwin_amd64-1.9.48.zip.
When I unpacked the zip file, I could not find the goapp binary.
It looks like goapp is a binary used to run a local GAE server but I'm a newb to golang and just following the tutorial: https://cloud.google.com/appengine/docs/go/getting-started/creating-guestbook#building_and_running_locally
$ ls go/bin/
total 54560
-rwxr-xr-x@ 1 bryan staff 9884220 Feb 15 10:27 go
-rwxr-xr-x@ 1 bryan staff 15065500 Feb 15 10:27 godoc
-rwxr-xr-x@ 1 bryan staff 2976976 Feb 15 10:27 gofmt
Foreword: If you are unsure what the "Go SDK" and the "Google App Engine SDK for Go" are or which one you need, I recommend you this post: Google Go SDK or Golang app?
Edit: Below answer uses the Linux 64-bit version, but I also tried the OS-X 64-bit version and it's the same.
The Go AppEngine SDK has its own separate folder. It is not installed into the Go SDK, you won't find goapp in the go/bin folder.
When you unzip the Go AppEngine SDK zip file, it contains a go_appengine folder, and the goapp executable binary is right inside that along with godoc and gofmt.
E.g.:
wget https://storage.googleapis.com/appengine-sdks/featured/go_appengine_sdk_linux_amd64-1.9.48.zip
unzip go_appengine_sdk_linux_amd64-1.9.48.zip
ll
Output after unpacking:
total 67224
drwxrwxr-x 3 myuser mygroup 4096 Feb 15 15:37 ./
drwxr-x--- 12 myuser mygroup 4096 Feb 7 00:10 ../
drwxr-xr-x 8 myuser mygroup 4096 Nov 29 19:29 go_appengine/
-rw-rw-r-- 1 myuser mygroup 68822758 Dec 1 19:31 go_appengine_sdk_linux_amd64-1.9.48.zip
Listing contents of go_appengine/:
ll go_appengine
Output:
-rwxr-xr-x 1 myuser mygroup 3127 Nov 29 19:29 appcfg.py
-rwxr-xr-x 1 myuser mygroup 3127 Nov 29 19:29 backends_conversion.py
-rw-r--r-- 1 myuser mygroup 156 Nov 29 19:29 BUGS
-rwxr-xr-x 1 myuser mygroup 3127 Nov 29 19:29 bulkload_client.py
-rwxr-xr-x 1 myuser mygroup 3127 Nov 29 19:29 bulkloader.py
drwxr-xr-x 11 myuser mygroup 4096 Nov 29 19:29 demos
-rwxr-xr-x 1 myuser mygroup 2344 Nov 29 19:29 dev_appserver.py
-rwxr-xr-x 1 myuser mygroup 3127 Nov 29 19:29 download_appstats.py
-rwxr-xr-x 1 myuser mygroup 3127 Nov 29 19:29 endpointscfg.py
-rwxr-xr-x 1 myuser mygroup 1527 Nov 29 19:29 goapp
-rwxr-xr-x 1 myuser mygroup 1527 Nov 29 19:29 godoc
-rwxr-xr-x 1 myuser mygroup 1527 Nov 29 19:29 gofmt
drwxr-xr-x 6 myuser mygroup 4096 Nov 29 19:29 google
drwxr-xr-x 2 myuser mygroup 4096 Nov 29 19:29 gopath
drwxr-xr-x 6 myuser mygroup 4096 Nov 29 19:29 goroot
drwxr-xr-x 47 myuser mygroup 4096 Nov 29 19:29 lib
-rw-r--r-- 1 myuser mygroup 5949 Nov 29 19:29 LICENSE
-rwxr-xr-x 1 myuser mygroup 2344 Nov 29 19:29 php_cli.py
-rwxr-xr-x 1 myuser mygroup 2344 Nov 29 19:29 _python_runtime.py
-rw-r--r-- 1 myuser mygroup 17738 Nov 29 19:29 RELEASE_NOTES
-rw-r--r-- 1 myuser mygroup 138 Nov 29 19:29 RELEASE_NOTES.python
-rwxr-xr-x 1 myuser mygroup 2115 Nov 29 19:29 run_tests.py
drwxr-xr-x 2 myuser mygroup 4096 Nov 29 19:29 tools
-rw-r--r-- 1 myuser mygroup 221 Nov 29 19:29 VERSION
-rwxr-xr-x 1 myuser mygroup 11323 Nov 29 19:29 wrapper_util.py