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responseJsonMethods

Prefer Response.json() over new Response(JSON.stringify(...)) for JSON responses.

✅ This rule is included in the ts stylistic presets.

The Response.json() static method provides a cleaner way to create JSON responses compared to manually calling new Response(JSON.stringify(data)). Using Response.json() is more concise and automatically sets the Content-Type header to application/json.

This rule flags cases where new Response(JSON.stringify(data)) can be replaced with Response.json(data).

Examples

Section titled “Examples”
new 
var Response: new (body?: BodyInit, init?: ResponseInit) => Response
Response(
var JSON: JSON
An intrinsic object that provides functions to convert JavaScript values to and from the JavaScript Object Notation (JSON) format.
JSON.
JSON.stringify(value: any, replacer?: (this: any, key: string, value: any) => any, space?: string | number): string (+1 overload)
Converts a JavaScript value to a JavaScript Object Notation (JSON) string.
@param ― value A JavaScript value, usually an object or array, to be converted.
@param ― replacer A function that transforms the results.
@param ― space Adds indentation, white space, and line break characters to the return-value JSON text to make it easier to read.
@throws ― {TypeError} If a circular reference or a BigInt value is found.
stringify(
const data: any
data));
new 
var Response: new (body?: BodyInit, init?: ResponseInit) => Response
Response(
var JSON: JSON
An intrinsic object that provides functions to convert JavaScript values to and from the JavaScript Object Notation (JSON) format.
JSON.
JSON.stringify(value: any, replacer?: (this: any, key: string, value: any) => any, space?: string | number): string (+1 overload)
Converts a JavaScript value to a JavaScript Object Notation (JSON) string.
@param ― value A JavaScript value, usually an object or array, to be converted.
@param ― replacer A function that transforms the results.
@param ― space Adds indentation, white space, and line break characters to the return-value JSON text to make it easier to read.
@throws ― {TypeError} If a circular reference or a BigInt value is found.
stringify({ 
message: string
message: "ok" }));
new 
var Response: new (body?: BodyInit, init?: ResponseInit) => Response
Response(
var JSON: JSON
An intrinsic object that provides functions to convert JavaScript values to and from the JavaScript Object Notation (JSON) format.
JSON.
JSON.stringify(value: any, replacer?: (this: any, key: string, value: any) => any, space?: string | number): string (+1 overload)
Converts a JavaScript value to a JavaScript Object Notation (JSON) string.
@param ― value A JavaScript value, usually an object or array, to be converted.
@param ― replacer A function that transforms the results.
@param ― space Adds indentation, white space, and line break characters to the return-value JSON text to make it easier to read.
@throws ― {TypeError} If a circular reference or a BigInt value is found.
stringify(
const data: any
data), {});
new 
var Response: new (body?: BodyInit, init?: ResponseInit) => Response
Response(
var JSON: JSON
An intrinsic object that provides functions to convert JavaScript values to and from the JavaScript Object Notation (JSON) format.
JSON.
JSON.stringify(value: any, replacer?: (this: any, key: string, value: any) => any, space?: string | number): string (+1 overload)
Converts a JavaScript value to a JavaScript Object Notation (JSON) string.
@param ― value A JavaScript value, usually an object or array, to be converted.
@param ― replacer A function that transforms the results.
@param ― space Adds indentation, white space, and line break characters to the return-value JSON text to make it easier to read.
@throws ― {TypeError} If a circular reference or a BigInt value is found.
stringify(
const data: any
data), {
  
ResponseInit.headers?: HeadersInit
headers: { "content-type": "application/json" },
});

Options

Section titled “Options”

This rule is not configurable.

When Not To Use It

Section titled “When Not To Use It”

If you need to pass additional options to JSON.stringify() like a replacer or space parameter, you’ll need to use the manual approach. Similarly, if you need to set custom response options like status or additional headers beyond Content-Type, use new Response() directly.

Further Reading

Section titled “Further Reading”

Equivalents in Other Linters

Section titled “Equivalents in Other Linters”
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