Cleaned up problem 2 code

This commit is contained in:
Daniel Flanagan 2022-09-23 14:37:43 -05:00
parent 20fca96aa7
commit 0cc8b61df3
Signed by untrusted user: lytedev-divvy
GPG key ID: 6D69CEEE4ABBCD82

64
main.ts
View file

@ -1,4 +1,7 @@
import { copy } from "https://deno.land/std@0.156.0/streams/conversion.ts";
import * as bytes from "https://deno.land/x/bytes@1.0.3/mod.ts";
import { JsonParseStream } from "https://deno.land/std@0.157.0/encoding/json/stream.ts";
import { TextLineStream } from "https://deno.land/std@0.156.0/streams/delimiter.ts";
import { writeAll, copy } from "https://deno.land/std@0.156.0/streams/conversion.ts";
const PORT = 5588
const listener = Deno.listen({ port: 5588 })
@ -6,13 +9,64 @@ const listener = Deno.listen({ port: 5588 })
console.log(`Listening on 0.0.0.0:${PORT}`)
for await (const conn of listener) {
echo(conn)
console.log('Connection established:', conn.remoteAddr)
try {
primeTime(conn)
} catch (e) {
console.error(conn.remoteAddr, e)
}
console.log('Connection closed:', conn.remoteAddr)
}
// problem 2
async function meansToAnEnd(conn) {
}
// problem 1
async function primeTime(conn) {
try {
for await (const request of jsons(conn)) {
console.log('Request:', request)
if (request.method == "isPrime" && typeof request.number == "number") {
const response = {
method: "isPrime",
prime: isPrime(request.number),
}
console.log('Response:', response)
const writeResult = await conn.write(new TextEncoder().encode(JSON.stringify(response) + "\n"))
console.log('Wrote:', writeResult)
} else {
await conn.write("Malformed!")
}
}
} catch (error) {
console.error("Error:", error)
}
}
function isPrime(n) {
if (!Number.isInteger(n)) return false
for (let i = 2, s = Math.sqrt(n); i <= s; i++) if (n % i === 0) return false
return n > 1
}
function jsons(conn) {
const readable = conn.readable
.pipeThrough(new TextDecoderStream())
.pipeThrough(new TextLineStream())
.pipeThrough(new JsonParseStream())
return {
async *[Symbol.asyncIterator]() {
for await (const data of readable) {
yield data
}
}
}
}
// problem 0
async function echo(conn) {
await copy(conn, conn)
conn.close()
}
async function primeTime(conn) {
}