javascript - TypeError: Cannot read property '1' of null

Question

I'm creating a RESTful API using node.js and postgre database.

I'm getting this error:

TypeError: Cannot read property '1' of null at firstchar (/Users/samerghosn/yachtClubServer/node_modules/body-parser/lib/types/json.js:176:37) at parse (/Users/samerghosn/yachtClubServer/node_modules/body-parser/lib/types/json.js:79:19) at /Users/samerghosn/yachtClubServer/node_modules/body-parser/lib/read.js:121:18 at invokeCallback (/Users/samerghosn/yachtClubServer/node_modules/raw-body/index.js:224:16) at done (/Users/samerghosn/yachtClubServer/node_modules/raw-body/index.js:213:7) at IncomingMessage.onEnd (/Users/samerghosn/yachtClubServer/node_modules/raw-body/index.js:273:7) at IncomingMessage.emit (events.js:314:20) at endReadableNT (_stream_readable.js:1223:12) at processTicksAndRejections (internal/process/task_queues.js:84:21)

Below is my code:

const express = require("express");
const app = express();
const Pool = require("pg").Pool

const pool = new Pool ({
    user: 'postgres',
    host:'localhost',
    database: 'Yacht_Club',
    password: 'Samerghosn4400',
    port: 5432
});

app.use(express.json());

app.get("/members", async (req,res) => {
    try{
        const allMembers = await pool.query("SELECT * FROM members");
        res.json(allMembers.rows);

    }
    catch(err) {
        console.error(err.message)
    }
});

app.listen(3000, () => {
    console.log("server is listening on port 3000")
});

Answer 1

等待大神答复