Google Cloud Endpoints Python能否返回纯文本字符串而非JSON？

Got it, let's tweak your endpoint to return plain text instead of the structured JSON message. Here's a straightforward way to make this change:

First, you’ll need to bypass the default JSON serialization behavior of Cloud Endpoints (which kicks in when you use a custom message class like Site_response_new). We’ll use endpoints.Response to directly control the response content and type, along with message_types.VoidMessage to signal we aren’t returning a structured protobuf.

Step 1: Update the endpoint's return type #

Replace Site_response_new in your @endpoints.method decorator with message_types.VoidMessage (make sure you’ve imported this from protorpc first). This tells Cloud Endpoints we won’t be sending a structured message back.

Step 2: Return a plain text response #

Inside your method, create an endpoints.Response instance, set its body to your desired plain text string, and specify content_type='text/plain' to ensure the client gets the correct content header.

Here’s the modified code:

# Ensure these imports are included
from protorpc import message_types
import endpoints

@endpoints.method(
    Site_resource,
    message_types.VoidMessage,  # Replaced Site_response_new here
    path='test',
    http_method='POST',
    name='testsystem'
)
def testsystem(self, request):
    # Replace with your actual plain text content
    plain_text_result = "Your custom plain text string goes here"
    return endpoints.Response(body=plain_text_result, content_type='text/plain')

Quick breakdown of why this works: #

• message_types.VoidMessage disables the automatic JSON serialization that Cloud Endpoints applies to custom message classes.
• endpoints.Response lets us explicitly define the raw response body and content type, so the server sends back plain text directly instead of wrapping it in a JSON object.

Special characters in your plain text will be handled automatically—no need for manual encoding.

内容的提问来源于stack exchange，提问作者Tal Yahav