Twilio Studio HTTP组件无法解析JSON响应，如何正确发送可解析数据？

Hey there, let's break down why you can't access {{widgets.http_address_schedule.parsed.say}} and get you sorted out quickly.

First, let's recap what Twilio requires to populate that parsed object:

• Your endpoint must return valid JSON (yours looks good, so that's not the issue here)
• Your endpoint must send the correct Content-Type header with the response

The #1 Fix: Add the application/json Content-Type Header #

Twilio uses the Content-Type header to decide whether to parse the response body into the parsed object. Even if your JSON is perfect, if you don't send Content-Type: application/json, Twilio will treat the response as raw text—so you'll only have access to body, not the parsed nested values.

Here's how to add this header in common backend languages:

Node.js/Express Example #

app.get('/your-address-endpoint', (req, res) => {
  const response = { 
    "response": { 
      "say": "1 address found", 
      "data": [ "10707 Ewing Drive Kansas City Kansas" ] 
    } 
  };
  // res.json automatically sets the Content-Type header, but you can also set it explicitly
  res.json(response);
});

Python/Flask Example #

from flask import Flask, jsonify

app = Flask(__name__)

@app.route('/your-address-endpoint')
def fetch_address():
    response_data = { 
        "response": { 
            "say": "1 address found", 
            "data": [ "10707 Ewing Drive Kansas City Kansas" ] 
        } 
    }
    # jsonify handles the Content-Type header for you
    return jsonify(response_data)

PHP Example #

$response = [
    "response" => [
        "say" => "1 address found",
        "data" => ["10707 Ewing Drive Kansas City Kansas"]
    ]
];
// Set the header first, then output the JSON
header('Content-Type: application/json');
echo json_encode($response);

One More Important Note: Your JSON Structure #

Wait a second—even once parsing works, you won't be able to access {{widgets.http_address_schedule.parsed.say}} directly. Look at your JSON: the say key is nested inside a top-level response object. So the correct path will be:

• {{widgets.http_address_schedule.parsed.response.say}} to get the message
• {{widgets.http_address_schedule.parsed.response.data.0}} to grab the first (and only) address in the array

Quick Validation Step #

If you want to double-check your JSON is valid, run it through a free tool like JSONLint—sometimes tiny syntax errors (like trailing commas) can break parsing even if the structure looks right.

Once you update your endpoint to send the correct header, you should see the parsed object populate with all your nested data, and be able to access those values in your Studio flow.

内容的提问来源于stack exchange，提问作者Michael Niño