Rename "downstream api" to simply "call api"

Author: rayluo

README.md

@@ -19,7 +19,7 @@ to sign in users and make authenticated calls to the Microsoft Graph API.
 
 ### Installation
 
-1. This sample already implements sign-in and calling downstream API.
+1. This sample already implements sign-in and calling a web API.
    You can clone
    [its repo](https://github.com/Azure-Samples/ms-identity-python-webapp-django)
    or download its zip package, and then start using it or build on top of it.
@@ -138,7 +138,7 @@ as a reference. What we need are these steps:
 ### Chapter 2: Get an Access Token and call Microsoft Graph
 
 This chapter begins where chapter 1 left off.
-We will add the following new view which will call a downstream API.
+We will add the following new view which will call a web API.
 
 ```python
 import json
@@ -148,11 +148,11 @@ import requests
 ...
 
 # here we demonstrate how to handle the error explicitly.
-def call_downstream_api(request):
+def call_web_api(request):
     token = settings.AUTH.get_token_for_user(["your_scope1", "your_scope2"])
     if "error" in token:
         return redirect(settings.AUTH.login)
-    api_result = requests.get(  # Use access token to call downstream api
+    api_result = requests.get(  # Use access token to call a web api
         "https://example.com/your/api",
         headers={'Authorization': 'Bearer ' + token['access_token']},
         timeout=30,

mysite/urls.py

@@ -24,6 +24,6 @@
 urlpatterns = [
     settings.AUTH.urlpattern,
     path('', views.index),
-    path("call_downstream_api", views.call_downstream_api),
+    path("call_api", views.call_api),
     path('admin/', admin.site.urls),
 ]

mysite/views.py

@@ -15,18 +15,18 @@ def index(request, *, context):
         user=context['user'],
         version=__version__,
         edit_profile_url=settings.AUTH.get_edit_profile_url(),
-        downstream_api=os.getenv("ENDPOINT"),
+        api_endpoint=os.getenv("ENDPOINT"),
     ))
 
 @settings.AUTH.login_required(scopes=os.getenv("SCOPE", "").split())
-def call_downstream_api(request, *, context):
+def call_api(request, *, context):
     api_result = requests.get(  # Use access token to call a web api
         os.getenv("ENDPOINT"),
         headers={'Authorization': 'Bearer ' + context['access_token']},
         timeout=30,
     ).json() if context.get('access_token') else "Did you forget to set the SCOPE environment variable?"
     return render(request, 'display.html', {
-        "title": "Result of downstream API call",
+        "title": "Result of API call",
         "content": json.dumps(api_result, indent=4),
     })
 

templates/index.html

@@ -15,8 +15,8 @@ <h2>Welcome {{ user.name }}!</h2>
     <img src="https://github.com/Azure-Samples/ms-identity-python-webapp-django/raw/main/static/topology.png" alt="Topology">
 
     <ul>
-    {% if downstream_api %}
-      <li><a href='/call_downstream_api'>Call a downstream API</a></li>
+    {% if api_endpoint %}
+      <li><a href='/call_api'>Call an API</a></li>
     {% endif %}
 
     {% if edit_profile_url %}