How to Handle Golang App Engine Library Imports with Third-Party Dependencies?

How to Import Golang Appengine: Navigating the Library Landscape

App Engine SDK imports have always been a crucial aspect of Golang app development. Lately, the introduction of third-party libraries using the full path has caused some confusion. Let's explore how to correctly import App Engine libraries while using third-party dependencies.

Parallel Imports

The old appengine library imports still work while the new google.golang.org/appengine imports are being phased in. This allows developers to use both versions in parallel as mentioned in the update:

import (
   oldAppengine "appengine"
   "google.golang.org/appengine"
)

Aliasing Import Paths

To avoid import conflicts, you can also alias the two import paths. For instance, you could import the old library as "oldAppengine" and the new library as "gae":

import (
   oldAppengine "appengine/datastore"
   gae "google.golang.org/appengine"
)

Impact of Imports on Deployment

If any imports are unavailable during deployment, App Engine will display build errors, effectively preventing deployment. This ensures you're always working with compatible libraries.

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