google app engine - Cannot access API explorer on localhost

Question

I'm trying to build an Endpoints application, but am new to Google App Engine.

As I understand it, there's some kind of API Explorer included in the SDK that should let me test/verify my API -- the docs say: "Test the API backend in the Google APIs Explorer by navigating to http://localhost:8080/_ah/api/explorer". But I can't find any documentation of what API Explorer actually is, does, or looks like.

In any case, when I try to hit that URL, I get immediately redirected to https://developers.google.com/apis-explorer/?base=http://localhost:8080/_ah/api#p/, which tells me nothing useful, and seems like it must be an error of some kind.

The devappserver logs say:

INFO     2013-07-17 17:27:54,574 server.py:593] default: "GET /_ah/api/explorer HTTP/1.1" 302 -
INFO     2013-07-17 17:27:56,099 server.py:593] default: "GET /_ah/api/static/proxy.html?jsh=m%3B%2F_%2Fscs%2Fapps-static%2F_%2Fjs%2Fk%3Doz.gapi.en.7JUwNUXMAS8.O%2Fm%3D__features__%2Fam%3DEQ%2Frt%3Dj%2Fd%3D1%2Frs%3DAItRSTO0dpKS_pssf5r3z87E6FlFvDGdOg HTTP/1.1" 200 1933
INFO     2013-07-17 17:27:56,193 server.py:593] default: "POST /_ah/spi/BackendService.getApiConfigs HTTP/1.1" 200 2342
INFO     2013-07-17 17:27:56,492 server.py:593] default: "GET /_ah/api/discovery/v1/apis HTTP/1.1" 200 576
INFO     2013-07-17 17:27:56,507 server.py:593] default: "POST /_ah/spi/BackendService.getApiConfigs HTTP/1.1" 200 2342
INFO     2013-07-17 17:27:56,583 server.py:593] default: "POST /_ah/spi/BackendService.getApiConfigs HTTP/1.1" 200 2342
INFO     2013-07-17 17:27:56,811 server.py:593] default: "GET /_ah/api/discovery/v1/apis HTTP/1.1" 200 576
INFO     2013-07-17 17:27:56,886 server.py:593] default: "GET /_ah/api/discovery/v1/apis/scrnxSync/v1/rest HTTP/1.1" 200 3365

for whatever that's worth.

Here's my app.yaml:

application: scrnx-cloud-1
version: 1
runtime: python27
api_version: 1
threadsafe: true

handlers:
- url: /admin/.*
  script: admin.application
  login: admin
  secure: always

  # Endpoints handler
- url: /_ah/spi/.*
  script: sync_api.application

  # catchall - must come last    
- url: /.*
  script: default.application


admin_console:
  pages:
  - name: View Measurement
    url: /admin/measurement  


libraries:
- name: jinja2
  version: 2.6
- name: markupsafe
  version: 0.15

builtins:
- admin_redirect: off
- appstats: off
- deferred: off
- remote_api: on

Is there something else I'm supposed to be doing to set this up?

Answer 1

Waitting for answers