try:
                return await original_route_handler(request)
            except RequestValidationError as exc:
                body = await request.body()
                detail = {"errors": exc.errors(), "body": body.decode()}
                raise HTTPException(status_code=422, detail=detail)

        return custom_route_handler


app = FastAPI()
app.router.route_class = ValidationErrorLoggingRoute

def test_exception_handler_body_access():
    response = client.post("/", json={"numbers": [1, 2, 3]})
    assert response.json() == IsDict(
        {
            "detail": {
                "errors": [
                    {
                        "type": "list_type",
                        "loc": ["body"],
                        "msg": "Input should be a valid list",

			tmpfile, err := os.CreateTemp("", "testfile")
			if err != nil {
				t.Error(err)
			}
			tmpfile.WriteString(testCase.content)
			tmpfile.Sync()
			tmpfile.Close()

			value, err := readFromSecret(tmpfile.Name())
			if err != nil && !testCase.expectedErr {
				t.Error(err)
			}
			if err == nil && testCase.expectedErr {
				t.Error(errors.New("expected error, found success"))
			}
			if value != testCase.expectedValue {

		"Total number of requests with (4xx and 5xx) errors", "name", "type")
	apiRequests5xxErrorsTotalMD = NewCounterMD(apiRequests5xxErrorsTotal,
		"Total number of requests with 5xx errors", "name", "type")
	apiRequests4xxErrorsTotalMD = NewCounterMD(apiRequests4xxErrorsTotal,
		"Total number of requests with 4xx errors", "name", "type")
	apiRequestsCanceledTotalMD = NewCounterMD(apiRequestsCanceledTotal,

This also means that if something changed it will be **reflected** on the client code automatically. And if you **build** the client it will error out if you have any **mismatch** in the data used.

//
// - disks which have all parts specified in the latest xl.meta.
//
//   - slice of errors about the state of data files on disk - can have
//     a not-found error or a hash-mismatch error.
func disksWithAllParts(ctx context.Context, onlineDisks []StorageAPI, partsMetadata []FileInfo,
	errs []error, latestMeta FileInfo, filterByETag bool, bucket, object string,
	scanMode madmin.HealScanMode,

	// Aggregate errors together, so that if part of the removal fails we still proceed with other steps.
	var errs []error

	// Remove the hostside ipset entry first, and unconditionally - if later failures happen, we never
	// want to leave stale entries
	if err := removePodFromHostNSIpset(pod, &s.hostsideProbeIPSet); err != nil {
		log.Errorf("failed to remove pod %s from host ipset, error was: %v", pod.Name, err)
		errs = append(errs, err)

	if err := DB.Model(user).Update("Age", 10).Error; err != nil {
		t.Errorf("errors happened when update: %v", err)
	} else if user.Age != 10 {
		t.Errorf("Age should equals to 10, but got %v", user.Age)
	}
	checkUpdatedAtChanged("Update", user.UpdatedAt)
	checkOtherData("Update")

	var result User
	if err := DB.Where("id = ?", user.ID).First(&result).Error; err != nil {
		t.Errorf("errors happened when query: %v", err)
	} else {

package cmd

import (
	"context"
	"errors"
	"fmt"

	etcd "go.etcd.io/etcd/client/v3"
)

var errEtcdUnreachable = errors.New("etcd is unreachable, please check your endpoints")

func etcdErrToErr(err error, etcdEndpoints []string) error {
	if err == nil {
		return nil
	}
	switch err {
	case context.DeadlineExceeded:
		return fmt.Errorf("%w %s", errEtcdUnreachable, etcdEndpoints)
	default:

package sql

import (
	"encoding/json"
	"errors"
	"fmt"
	"math"
	"reflect"
	"strconv"
	"strings"
	"time"
	"unicode/utf8"
)

var (
	errArithMismatchedTypes = errors.New("cannot perform arithmetic on mismatched types")
	errArithInvalidOperator = errors.New("invalid arithmetic operator")
	errArithDivideByZero    = errors.New("cannot divide by 0")