Request key context
A unique string key for the request
requestSerializer({
method: 'GET',
path: '/users/123',
url: new URL('https://api.example.com/users/123?page=1'),
payload: undefined,
headers: {
'Authorization': 'Bearer token',
'X-Timestamp': '1234567890', // Ignored (dynamic)
'Accept': 'application/json'
}
});
// Returns: 'GET|/users/123?page=1|undefined|{"accept":"application/json","authorization":"Bearer token"}'
Request serializer for generating deduplication and cache keys.
Serializes by request identity: method + URL path+search + payload + stable headers. Used for policies that identify duplicate requests.
Only includes stable, semantically-meaningful headers (Authorization, Accept, Accept-Language, Content-Type, Accept-Encoding). Dynamic headers like timestamps, HMAC signatures, and request IDs are excluded to prevent cache pollution.
Header lookup is case-insensitive (keys are lowercased for comparison).
Uses
url.pathname + url.searchwhich: