117 lines
3.5 KiB
TypeScript
117 lines
3.5 KiB
TypeScript
import express from "express";
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import {HTTP_API_ADDR, HTTP_API_PORT} from "./config";
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import {deltasAccepted} from "./deltas";
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import {peers} from "./peers";
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import {Delta} from "./types";
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import {readdirSync, readFileSync} from "fs";
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import Debug from "debug";
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import {Collection} from "./collection";
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import {Converter} from "showdown";
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import path from "path";
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const debug = Debug('http-api');
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type CollectionsToServe = {
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[key: string]: Collection;
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};
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const docConverter = new Converter({
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simpleLineBreaks: true,
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completeHTMLDocument: true
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});
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const htmlDocFromMarkdown = (md: string): string => docConverter.makeHtml(md);
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export function runHttpApi(collections?: CollectionsToServe) {
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const app = express();
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app.use(express.json());
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// Convert markdown to HTML and serve it
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const mdFiles = readdirSync('./markdown/')
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.filter((f) => f.endsWith('.md'))
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.map((name) => path.parse(name).name);
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debug('mdFiles:', mdFiles);
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app.get('/html', (_req: express.Request, res: express.Response) => {
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let md = `# Files\n\n`;
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for (const name of mdFiles) {
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md += `- [${name}](./${name})\n`;
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}
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const html = htmlDocFromMarkdown(md);
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res.setHeader('content-type', 'text/html').send(html);
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});
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for (const name of mdFiles) {
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const md = readFileSync(`./markdown/${name}.md`).toString();
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const html = htmlDocFromMarkdown(md);
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app.get(`/html/${name}`, (_req: express.Request, res: express.Response) => {
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res.setHeader('content-type', 'text/html').send(html);
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});
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}
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// Set up API routes
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if (collections) {
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for (const [name, collection] of Object.entries(collections)) {
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debug(`collection: ${name}`);
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app.get(`/${name}/ids`, (_req: express.Request, res: express.Response) => {
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res.json({ids: collection.getIds()});
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});
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app.put(`/${name}`, (req: express.Request, res: express.Response) => {
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const {body: properties} = req;
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const ent = collection.put(undefined, properties);
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res.json(ent);
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});
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app.put(`/${name}/:id`, (req: express.Request, res: express.Response) => {
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const {body: properties, params: {id}} = req;
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if (properties.id && properties.id !== id) {
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res.status(400).json({error: "ID Mismatch", param: id, property: properties.id});
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return;
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}
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const ent = collection.put(id, properties);
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res.json(ent);
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});
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}
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}
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app.get("/deltas", (_req: express.Request, res: express.Response) => {
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// TODO: streaming
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res.json(deltasAccepted);
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});
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app.get("/deltas/count", (_req: express.Request, res: express.Response) => {
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res.json(deltasAccepted.length);
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});
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app.get("/peers", (_req: express.Request, res: express.Response) => {
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res.json(peers.map(({reqAddr, publishAddr, isSelf, isSeedPeer}) => {
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const deltasAcceptedCount = deltasAccepted
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.filter((delta: Delta) => {
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return delta.receivedFrom?.addr == reqAddr.addr &&
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delta.receivedFrom?.port == reqAddr.port;
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})
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.length;
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const peerInfo = {
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reqAddr: reqAddr.toAddrString(),
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publishAddr: publishAddr?.toAddrString(),
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isSelf,
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isSeedPeer,
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deltaCount: {
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accepted: deltasAcceptedCount
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}
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};
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return peerInfo;
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}));
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});
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app.get("/peers/count", (_req: express.Request, res: express.Response) => {
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res.json(peers.length);
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});
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app.listen(HTTP_API_PORT, HTTP_API_ADDR, () => {
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debug(`HTTP API bound to http://${HTTP_API_ADDR}:${HTTP_API_PORT}`);
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});
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}
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