I want to extract the child value of queryResult ie. "Hello there. I am chat bot So shall we get started?" from the JSON using flutter
final responseJson = json.decode(response.body);
print("DATA \\n ${responseJson['queryResult']}");
JSON DATA ===>
{
"responseId":"123456789",
"queryResult":{
"queryText":"Hello",
"action":"input.welcome",
"parameters":{
},
"allRequiredParamsPresent":true,
"fulfillmentText":"Greetings! How can I assist?",
"fulfillmentMessages":[
{
"text":{
"text":[
"Hello there. I am chat bot So shall we get started?"
]
}
},
{
"quickReplies":{
"quickReplies":[
"Yes",
"No"
]
}
}
],
"outputContexts":[
{
"name":"xyz",
"lifespanCount":5
}
],
"intent":{
"name":"xyz",
"displayName":"Default Welcome Intent"
},
"intentDetectionConfidence":1,
"diagnosticInfo":{
"webhook_latency_ms":5
},
"languageCode":"en"
},
"webhookStatus":{
"message":"Webhook execution successful"
}
}
I am unable to read the child data of queryResult using
final responseJson = json.decode(response.body);
print("DATA \n ${responseJson['queryResult']}");
If you want to get that specific line, than you can get it this way, but for more usage it would be wise to serialize the json like here: https://flutter.dev/docs/development/data-and-backend/json
print("DATA \n ${responseJson['queryResult']['fulfillmentMessages'][0]['text']['text'][0]}");
For an easier understanding on the path:
print("DATA \n ${
responseJson['queryResult']
['fulfillmentMessages'][0]
['text']
['text'][0]
}"
);
Whole code which is like yours:
import 'dart:convert';
final responseBody = '{"responseId":"123456789","queryResult":{"queryText":"Hello","action":"input.welcome","parameters":{},"allRequiredParamsPresent":true,"fulfillmentText":"Greetings! How can I assist?","fulfillmentMessages":[{"text":{"text":["Hello there. I am chat bot So shall we get started?"]}},{"quickReplies":{"quickReplies":["Yes","No"]}}],"outputContexts":[{"name":"xyz","lifespanCount":5}],"intent":{"name":"xyz","displayName":"Default Welcome Intent"},"intentDetectionConfidence":1,"diagnosticInfo":{"webhook_latency_ms":5},"languageCode":"en"},"webhookStatus":{"message":"Webhook execution successful"}}';
void main() {
final Map<String, dynamic> responseJson = json.decode(responseBody);
print("DATA \n ${
responseJson['queryResult']
['fulfillmentMessages'][0]
['text']
['text'][0]
}"
);
}
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