URLEncodedFormEncoder

print(user) /// User
let data = try URLEncodedFormEncoder().encode(user)
print(data) /// Data

URL-encoded forms are commonly used by websites to send form data via POST requests. This encoding is relatively efficient for small amounts of data but must be percent-encoded. multipart/form-data is more efficient for sending large data blobs like files.

See Mozilla’s docs for more information about url-encoded forms. NOTE: This implementation of the encoder does not support encoding booleans to “flags”.