Files
kubescape/core/cautils/getter/json.go
Frederic BIDON 548955fc16 refact(getter): refactor the KS Cloud client
* Interfaces are unchanged

* Deprecated: low-level API funcs marked for deprecation:
  HttpPost, HttpGetter, HttpDelete (an augmented version of the KS Cloud
  client will expose the post report API, which is currently the sole
  use-case of low-level API)

* Doc: the package is now godoc-friendly

* Style & code layout:
  * listed all exposed types via aliases, for clarity/less confusing
    imports
  * unexported private types
  * factorized query param logic
  * factorized type <-> JSON using generic func & io.Reader
  * "utils" are now limited to a few common utility functions
  * centralized hard-coded strings as (unexported) constants
  * concision: use higher-level http definitions such as constants,
    cookie methods, etc
  * included type-safety guards to verify that interfaces are
    actually implemented by the exported types

* Tests: existing test assertions are unchanged
  * tests are beefed-up to assert proper authentication flow (token & cookie).
  * added unit tests for utility methods

* Perf:
  * unmarshalling API responses is now flowing without extraneous memory allocation via string representation
  * request headers are now passed withot extraneous map allocation
  * JSON operations are now fully supported by jsoniter (no longer use encoding/json)

* Changes in functionality:
  * the client is now fully extensible with KSCloudOption
  * use the option functor idiom to keep constructors short
  * methods that used to mute errors (i.e. return nil, nil) now bubble up errors
  * the captured cookie is now captured in full, not just its value
  (other cookie parameters returned are stored)
  * added a request/response dump option, for debugging
  * added support for SubmitReport and retrieval of UI url's
  * backported utm changes (reports use case)

Signed-off-by: Frederic BIDON <fredbi@yahoo.com>
2023-03-23 16:47:23 +01:00

39 lines
867 B
Go

package getter
import (
"io"
"strings"
jsoniter "github.com/json-iterator/go"
)
var json jsoniter.API
func init() {
// NOTE(fredbi): attention, this configuration rounds floats down to 6 digits
// For finer-grained config, see: https://pkg.go.dev/github.com/json-iterator/go#section-readme
json = jsoniter.ConfigFastest
}
// JSONDecoder provides a low-level utility that returns a JSON decoder for given string.
//
// Deprecated: use higher level methods from the KSCloudAPI client instead.
func JSONDecoder(origin string) *jsoniter.Decoder {
dec := jsoniter.NewDecoder(strings.NewReader(origin))
dec.UseNumber()
return dec
}
func decode[T any](rdr io.Reader) (T, error) {
var receiver T
dec := newDecoder(rdr)
err := dec.Decode(&receiver)
return receiver, err
}
func newDecoder(rdr io.Reader) *jsoniter.Decoder {
return json.NewDecoder(rdr)
}