Server stackoverflow answers through a nodejs service. Use https://archive.org/details/stackover-sqlite.db to download the March 2021 dump

server.js

const sqlite3 = require('sqlite3').verbose();
const express = require("express")
const morgan = require('morgan')
const cors = require('cors')

const app = express()
app.use(express.json())
app.use(cors())
app.options('*', cors())
app.use(morgan('tiny'))

let db = new sqlite3.Database('./so-dump.db', (err) => {
    if (err) {
      console.error(err.message);
    }
    console.log('Connected to the SO database.');
  });


  app.get("/api/stackoverflow.com/answers", async function(req, res) {
    const questionId = decodeURIComponent(req.query.question_id);
    db.all("SELECT * FROM posts where Id= (SELECT AcceptedAnswerId FROM posts where Id=$1)",
     [questionId], 
     (err, rows) => {
        if(rows.length > 0) {
            res.send(rows[0]);
        } else {
            db.all("select * from posts where ParentId=$1 ORDER BY Score DESC LIMIT 1;",
             [questionId],
             (err2, rows2) => {
                 res.send(rows2[0]);
             })
        }
      })
  })

  app.get("/api/stackoverflow.com/questions", async function(req, res) {
      
    const questionId = decodeURIComponent(req.query.question_id);
    try{
        db.all("select * from posts where Id=$1;", [questionId], (err, rows) => {
          res.send(rows[0]);
        })
      } catch (err) {
        res.status(404)
      }
  })

  port = process.env.port || process.env.PORT || 5000
  app.listen(port)