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// Copyright 2019-2025 The Wait4X Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Package main is the main package for the HTTP Advanced example.
package main
import (
"context"
"fmt"
"log"
"net/http"
"strings"
"time"
httpChecker "wait4x.dev/v3/checker/http"
"wait4x.dev/v3/waiter"
)
// main is the main function for the HTTP Advanced example
func main() {
// Create a context with cancellation
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
// Create custom HTTP headers
headers := http.Header{}
headers.Add("Authorization", "Bearer my-token")
headers.Add("Content-Type", "application/json")
// Prepare a request body
requestBody := strings.NewReader(`{"query": "status"}`)
// Create an HTTP checker with multiple validations
checker := httpChecker.New(
"https://api.example.com/health",
httpChecker.WithTimeout(5*time.Second),
httpChecker.WithExpectStatusCode(200),
httpChecker.WithExpectBodyJSON("status"), // Check that 'status' field exists in JSON
httpChecker.WithExpectBodyRegex(`"healthy":\s*true`), // Regex to check response
httpChecker.WithExpectHeader("Content-Type=application/json"),
httpChecker.WithRequestHeaders(headers),
httpChecker.WithRequestBody(requestBody),
httpChecker.WithInsecureSkipTLSVerify(true), // Skip TLS verification
)
// Wait for the API to be available and responding correctly
fmt.Println("Waiting for API health endpoint...")
err := waiter.WaitContext(
ctx,
checker,
waiter.WithTimeout(2*time.Minute),
waiter.WithInterval(5*time.Second),
waiter.WithBackoffPolicy(waiter.BackoffPolicyExponential),
)
if err != nil {
log.Fatalf("API health check failed: %v", err)
}
fmt.Println("API is healthy and ready!")
}
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