title: Debugging invalid JSON
shortTitle: Debug invalid JSON
intro: >-
{% data variables.copilot.copilot_chat_short %} can identify and resolve
syntax errors or structural issues in JSON data.
redirect_from:
- >-
/copilot/example-prompts-for-github-copilot-chat/debugging-errors/debugging-invalid-json
- /copilot/copilot-chat-cookbook/debugging-errors/debugging-invalid-json
- >-
/copilot/tutorials/copilot-chat-cookbook/debugging-errors/debugging-invalid-json
- /copilot/tutorials/copilot-chat-cookbook/debugging-errors/debug-invalid-json
- /copilot/copilot-chat-cookbook/debugging-errors/debugging-invalid-json
versions:
feature: copilot
category:
- Debugging code
- Author and optimize with Copilot
complexity:
- Intermediate
octicon: bug
topics:
- Copilot
contentType: tutorials
When working with JSON data, you may encounter issues such as trailing commas, mismatched braces, or incorrect data types that make the JSON invalid. {% data variables.copilot.copilot_chat %} can help you debug and fix these errors by suggesting corrections to fix invalid JSON.
Example scenario
Consider a scenario where an application consumes JSON data from an API, but the response fails to parse due to invalid formatting. You receive the error message:
Error: Parse error
----------------------^
Expecting 'STRING', 'NUMBER', 'NULL', 'TRUE', 'FALSE', '{', '[', got 'undefined'
Below is the JSON data that caused the error:
{
"location": "San Francisco",
"current_weather": {
"temperature": 18,
"unit": "Celsius",
"conditions": "Cloudy
},
"forecast": {
"day": "Monday",
"high": 22,
"low": 15,
"precipitation": 10
}
}
Example prompt
Why is my JSON object invalid and how can I fix it?
Example response
{% data reusables.copilot.example-prompts.response-is-an-example %}
{% data variables.product.prodname_copilot_short %} might suggest that your JSON is invalid because it's missing a closing quote for the conditions value. Here is the corrected JSON:
{
"location": "San Francisco",
"current_weather": {
"temperature": 18,
"unit": "Celsius",
"conditions": "Cloudy"
},
"forecast": {
"day": "Monday",
"high": 22,
"low": 15,
"precipitation": 10
}
}
In this example response, {% data variables.product.prodname_copilot_short %}'s suggestions include fixing the closing quote for the conditions value, which resolves the JSON parsing error.
Further reading
{% data reusables.copilot.example-prompts.further-reading-items %}