fetchJSON()

function fetchJSON<V>(
   url, 
   method, 
   options): Promise<[V | null, Headers]>

Perform an HTTP fetch where input and output data is Json.

Type Parameters

Type Parameter	Description
V extends Json	Type response is assumed to have.

Parameters

Parameter	Type	Default value	Description
url	string	undefined	URL from which to fetch.
method	"POST" | "GET" | "PUT" | "PATCH" | "HEAD" | "DELETE"	"GET"	HTTP method of request.
options	{ body: Json; headers: {}; timeout: number; }	...	Optional parameters.
options.body?	Json	undefined	Data to convert to JSON and send in request body.
options.headers?	{}	undefined	Additional headers to add to request.
options.timeout?	number	undefined	Timeout for request, in milliseconds. Defaults to 1000ms.

Returns

Promise<[V | null, Headers]>

Response parsed as JSON, and headers.