contracts/bin/api.js

const main = require('../contracts/main');
const {Address, Cell, Slice} = require("ton");
const {Base64} = require('@tonconnect/protocol');
const BN = require("bn.js");

const express = require('express')
const {get_tonclient} = require("../contracts/utils");
const {sha256} = require("ton-crypto");
const {getRecords} = require("../contracts/main");
const app = express()
const port = 5171
const debug = process.env.DEBUG === '1';
let tonclient = get_tonclient(debug);

app.use(function(err, req, res, next) {
    if(!err) return next(); // you also need this line
    console.log("error");
    res.send("error");
});
app.get('/', (req, res) => {
    res.send('Agorata microservice for dealing with TON')
})

app.get('/buy-message/:collection/:domain' /* the rest as get parameters: buyer, key */, (req, res) => {
    let collection = Address.parse(req.params.collection);
    if (req.query.buyer !== '') {
        let buyer = Address.parse(req.query.buyer);
        let key = Buffer.from(req.query.key, 'hex');
        let signature = main.signBuy(req.params.domain, collection, buyer, key);
        let msg = main.createItem({domain: req.params.domain, signature})
        res.send(JSON.stringify([Base64.encode(msg.toBoc()), collection.toString()]));
    } else {
        let msg = main.createItem({domain: req.params.domain, signature: '0'})
        res.send(JSON.stringify([Base64.encode(msg.toBoc()), collection.toString()]));
    }
});

app.get('/content-message/:address/:zone/:domain', async (req, res) => {
    let msg = await main.setContent({domain: req.params.domain, zone: req.params.zone});
    let addr = main.getItemAddr(Address.parse(req.params.address), req.params.domain, 0);
    res.send(JSON.stringify([Base64.encode(msg.toBoc()), addr.toString()]));
});

app.get('/address/:collection/:domain', (req, res) => {
    let addr = main.getItemAddr(Address.parse(req.params.collection), req.params.domain, 0);
    res.send(JSON.stringify({"address": addr.toString()}));
})

app.get('/get-records/:address', async (req, res) => {
    try {
        let records = await getRecords(tonclient, Address.parse(req.params.address));
        res.send(JSON.stringify(records));
    } catch (e) {
        console.log(e);
        res.send(JSON.stringify({}));
    }
})

app.listen(port, () => {
    console.log(`Example app listening on port ${port}`)
})