103 lines
2.5 KiB
Go
103 lines
2.5 KiB
Go
package lib
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import (
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"bytes"
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"fmt"
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"net/http"
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"strings"
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"sync"
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"sync/atomic"
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"time"
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)
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// Global HTTP client used for making requests.
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var client = &http.Client{}
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type RequestError struct {
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Verb string
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URL string
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Err error
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}
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func (e *RequestError) Error() string {
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return fmt.Sprintf("error making %s request to %s: %v", e.Verb, e.URL, e.Err)
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}
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// makeRequest sends an HTTP request and updates performance metrics.
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func makeRequest(verb, url, token string, jsonData []byte, second int) error {
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startTime := time.Now()
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// Create a new request with the provided verb, URL, and JSON data if provided.
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var req *http.Request
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var err error
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if jsonData != nil {
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req, err = http.NewRequest(verb, url, bytes.NewBuffer(jsonData))
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req.Header.Set("Content-Type", "application/json")
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} else {
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req, err = http.NewRequest(verb, url, nil)
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}
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if err != nil {
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return &RequestError{Verb: verb, URL: url, Err: err}
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}
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// Add the bearer token to the request's Authorization header if provided.
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if token != "" {
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req.Header.Set("Authorization", "Bearer "+token)
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}
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// Send the request.
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resp, err := client.Do(req)
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if err != nil {
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return &RequestError{Verb: verb, URL: url, Err: err}
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}
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defer resp.Body.Close()
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// Calculate the duration of the request.
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duration := time.Since(startTime)
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// Update the performance metrics in a separate goroutine.
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go UpdateMetrics(duration, resp, second)
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return nil
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}
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// sendRequests sends requests at the specified rate.
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func SendRequests(url, bearerToken, requestType string, jsonData []byte, maxRequests int, requestsPerSecond float64) {
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// Calculate the rate limit based on the requests per second.
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rateLimit := time.Second / time.Duration(requestsPerSecond)
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ticker := time.NewTicker(rateLimit)
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defer ticker.Stop()
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// Initialize the request count.
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var requestCount int32 = 0
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// Wait for all goroutines to finish.
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var wg sync.WaitGroup
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// Log beginning of requests
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fmt.Println("Starting Loadr Requests...")
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// Start sending requests at the specified rate.
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startTime := time.Now()
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for range ticker.C {
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second := int(time.Since(startTime).Seconds())
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if int(requestCount) >= maxRequests {
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break
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}
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wg.Add(1)
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go func(u, t, verb string, data []byte, sec int) {
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defer wg.Done()
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err := makeRequest(verb, u, t, data, sec)
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if err != nil {
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fmt.Println(err)
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return
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}
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atomic.AddInt32(&requestCount, 1)
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}(url, bearerToken, strings.ToUpper(requestType), jsonData, second)
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}
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wg.Wait() // Wait for all requests to finish.
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CalculateAndPrintMetrics(startTime, requestsPerSecond, url, requestType)
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}
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