## Writing templates
-Then you can write a template at `templates/item.html` with:
+Then you can write a template at `templates/item.html` with, for example:
```jinja hl_lines="7"
{!../../../docs_src/templates/templates/item.html!}
```
-It will show the `id` taken from the "context" `dict` you passed:
+### Template Context Values
+
+In the HTML that contains:
+
+{% raw %}
+
+```jinja
+Item ID: {{ id }}
+```
+
+{% endraw %}
+
+...it will show the `id` taken from the "context" `dict` you passed:
```Python
-{"request": request, "id": id}
+{"id": id}
+```
+
+For example, with an ID of `42`, this would render:
+
+```html
+Item ID: 42
+```
+
+### Template `url_for` Arguments
+
+You can also use `url_for()` inside of the template, it takes as arguments the same arguments that would be used by your *path operation function*.
+
+So, the section with:
+
+{% raw %}
+
+```jinja
+<a href="{{ url_for('read_item', id=id) }}">
+```
+
+{% endraw %}
+
+...will generate a link to the same URL that would be handled by the *path operation function* `read_item(id=id)`.
+
+For example, with an ID of `42`, this would render:
+
+```html
+<a href="/items/42">
```
## Templates and static files
-You can also use `url_for()` inside of the template, and use it, for example, with the `StaticFiles` you mounted.
+You can also use `url_for()` inside of the template, and use it, for example, with the `StaticFiles` you mounted with the `name="static"`.
```jinja hl_lines="4"
{!../../../docs_src/templates/templates/item.html!}
client = TestClient(app)
response = client.get("/items/foo")
assert response.status_code == 200, response.text
- assert b"<h1>Item ID: foo</h1>" in response.content
+ assert (
+ b'<h1><a href="http://testserver/items/foo">Item ID: foo</a></h1>'
+ in response.content
+ )
response = client.get("/static/styles.css")
assert response.status_code == 200, response.text
assert b"color: green;" in response.content
projects / thirdparty / fastapi / fastapi.git / commitdiff
