Created
April 21, 2024 19:23
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Fire async requests and summarize results in table (node)
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| import fetch from "node-fetch"; | |
| import ProgressBar from "progress"; | |
| // Function to handle the individual fetch operation | |
| async function sendRequest(url, index) { | |
| try { | |
| // console.log(`Sending request ${index + 1} to ${url}`); | |
| const startTime = process.hrtime(); // Start timing here | |
| const response = await fetch(url); | |
| const duration = process.hrtime(startTime); | |
| // console.log( | |
| // `Request ${index + 1} completed in ${duration[0]}s ${duration[1] / 1e6}ms` | |
| // ); | |
| const durationInMs = (duration[0] * 1000 + duration[1] / 1e6).toFixed(2); | |
| let preview = ""; | |
| let detail = ""; | |
| let status = ""; | |
| let instance = response.headers.get("zp-instance-id"); | |
| if (response.ok) { | |
| const text = await response.text(); | |
| preview = text.substring(0, 50); // Get the first 50 characters of the response | |
| status = "Success"; | |
| } else if (response.status === 500) { | |
| const json = await response.json(); | |
| detail = json.detail || "No detail provided"; // Extracting detail from JSON if available | |
| status = "Error 500"; | |
| } else { | |
| throw new Error(`HTTP error! status: ${response.status}`); | |
| } | |
| return { | |
| Status: status, | |
| Duration: `${durationInMs} ms`, | |
| Preview: preview, | |
| Detail: detail, | |
| Instance: instance, | |
| }; | |
| } catch (error) { | |
| return { | |
| Status: "Fetch Error", | |
| Duration: "Error", | |
| Preview: "", | |
| Detail: error.message, | |
| Instance: instance, | |
| }; | |
| } | |
| } | |
| // Function to manage the sequence of requests | |
| async function fireRequests(url, n, delay) { | |
| const results = new Array(n); | |
| const bar = new ProgressBar(":bar :current/:total Requests", { | |
| total: n, | |
| width: 20, | |
| complete: "=", | |
| incomplete: " ", | |
| }); | |
| let completedRequests = 0; | |
| for (let i = 0; i < n; i++) { | |
| setTimeout(async () => { | |
| bar.tick(); | |
| results[i] = await sendRequest(url, i); | |
| completedRequests++; | |
| if (completedRequests === n) { | |
| displayResults(results); | |
| summarizeResults(results); | |
| } | |
| }, delay * 1000 * i); | |
| } | |
| } | |
| // Function to display the results | |
| function displayResults(results) { | |
| console.log("All requests completed."); | |
| console.table(results); | |
| } | |
| function summarizeResults(results) { | |
| const statusSummary = results.reduce((acc, result) => { | |
| acc[result.Status] = (acc[result.Status] || 0) + 1; | |
| return acc; | |
| }, {}); | |
| const averageDuration = results.reduce( | |
| (acc, result) => { | |
| if (!isNaN(result.Duration)) { | |
| acc.total += parseFloat(result.Duration); | |
| acc.count += 1; | |
| } | |
| return acc; | |
| }, | |
| { total: 0, count: 0 } | |
| ); | |
| const averageDurationResult = | |
| averageDuration.count > 0 | |
| ? (averageDuration.total / averageDuration.count).toFixed(2) | |
| : 0; | |
| console.log("\nSummary:"); | |
| console.table(statusSummary); | |
| console.log("Average Duration:", averageDurationResult, "ms"); | |
| } | |
| fireRequests("https://bgl-test-main-3738d64.d2.zuplo.dev/path-0", 1000, 0.1); |
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