72 lines
1.9 KiB
TypeScript
72 lines
1.9 KiB
TypeScript
import * as bytes from "https://deno.land/x/bytes@1.0.3/mod.ts";
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import { JsonParseStream } from "https://deno.land/std@0.157.0/encoding/json/stream.ts";
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import { TextLineStream } from "https://deno.land/std@0.156.0/streams/delimiter.ts";
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import { writeAll, copy } from "https://deno.land/std@0.156.0/streams/conversion.ts";
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const PORT = 5588
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const listener = Deno.listen({ port: 5588 })
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console.log(`Listening on 0.0.0.0:${PORT}`)
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for await (const conn of listener) {
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console.log('Connection established:', conn.remoteAddr)
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try {
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primeTime(conn)
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} catch (e) {
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console.error(conn.remoteAddr, e)
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}
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console.log('Connection closed:', conn.remoteAddr)
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}
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// problem 2
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async function meansToAnEnd(conn) {
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}
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// problem 1
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async function primeTime(conn) {
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try {
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for await (const request of jsons(conn)) {
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console.log('Request:', request)
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if (request.method == "isPrime" && typeof request.number == "number") {
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const response = {
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method: "isPrime",
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prime: isPrime(request.number),
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}
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console.log('Response:', response)
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const writeResult = await conn.write(new TextEncoder().encode(JSON.stringify(response) + "\n"))
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console.log('Wrote:', writeResult)
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} else {
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await conn.write("Malformed!")
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}
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}
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} catch (error) {
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console.error("Error:", error)
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}
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}
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function isPrime(n) {
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if (!Number.isInteger(n)) return false
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for (let i = 2, s = Math.sqrt(n); i <= s; i++) if (n % i === 0) return false
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return n > 1
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}
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function jsons(conn) {
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const readable = conn.readable
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.pipeThrough(new TextDecoderStream())
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.pipeThrough(new TextLineStream())
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.pipeThrough(new JsonParseStream())
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return {
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async *[Symbol.asyncIterator]() {
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for await (const data of readable) {
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yield data
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}
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}
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}
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}
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// problem 0
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async function echo(conn) {
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await copy(conn, conn)
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conn.close()
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} |