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How to use read_req method in wpt

Best JavaScript code snippet using wpt

Rcs620s.js

Source:Rcs620s.js

1#!/usr/bin/env node2/**3 * a (very preliminary) node implementation of the RC-620S FeliCa reader serial communication4 * with minimal dependencies.5 *6 * NOTE : before using, you should :7 *8 * (0) install npm package "serialport" globally; this package requires9 *     the newest version of g++ (the Raspi3B should be fine without this step)10 *11 *      sudo apt-get install gcc-4.8 g++-4.812 *      sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-4.6 2013 *      sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-4.8 5014 *      sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-4.6 2015 *      sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-4.8 5016 *17 *18 * (1) connect your RC-S620S to your Pi19 *      RC-S620:VDD --> Pi:5V or 3.3V rail20 *      RC-S620:GND --> Pi:GND21 *      RC-S620:RxD --> Pi:UART0-TxD22 *      RC-S620:TxD --> Pi:UART0-RxD23 *24 *25 * for the UART0-TxD and UART0-RxD pin number, google : Raspberry Pi GPIO26 * e.g. Raspi3B's UART0-TXD is pin #8 and UART0-RXD is pin #1027 *28 * (2) disable boot console in serial port ; modify /boot/cmdline.txt29 *      change 'console=ttyAMA0,115200' --> 'console=tty1'30 * (3) for Raspberry Pi 3 models, create/append to /boot.config.txt31 *      'dtoverlay=pi3-miniuart-bt'32 *33 * NOTE : lots of code was translated from :34 * @link https://qiita.com/rukihena/items/476d48e1e8d8fc6b98bf35 */36'use strict'37const SerialPort = require('serialport'),38    {range, serial, int2strbinLE, read_number} = require('./felicaca_utils')39// -- the following function is for debug only --40//function buffer2hex(buf) {41//    var out = []42//    for (const value of buf.values()) {43//        let o = Number(value).toString(16)44//        out.push(((o.length < 2) ? '0' : '') + o)45//    }46//    return out.join(' ')47//}48/**49 *50 * @param {...Buffer|string} _51 * @returns {Buffer}52 */53function concat_buffer(_) {54    var ingredients = []55    for (var i = 0; i < arguments.length; ++i) {56        var arg = arguments[i]57        if (arg instanceof Buffer) ingredients.push(arg);58        else if (typeof arg === 'number') ingredients.push(Buffer.from(String.fromCharCode(arg), 'ascii'));59        else if (typeof arg === 'string') ingredients.push(Buffer.from(arg, 'ascii'));60        else throw 'expecting number,string,Buffer ; received : ' + JSON.stringify(arg);61    }62    return Buffer.concat(ingredients)63}64// -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -65class Rcs620s {66    /**67     *68     * @param {string} port69     *      path to the unix port of the connection70     * @param {number} [baudrate=115200]71     * @param {function} [on_ready]72     *      called when the serial port is open and ready to use73     *      if omitted then you should inspect property: is_ready74     *      to determine when the serial port is ready for use75     * @param {number} [timeout=1000]76     *      felica timeout in milliseconds77     */78    constructor(port = '/dev/ttyAMA0', baudrate = 115200, on_ready = '', timeout = 1000) {79        //console.log(`creating SerialPort ; port = ${port}`)80        this._timeout = typeof timeout === 'number' && timeout ? timeout : 100081        this._ser = new SerialPort(port, {baudRate: baudrate})82        this._busy = false83        this._on_ready = ''84        this._is_ready = false85        if (typeof on_ready === 'function') this._on_ready = on_ready;86        this._ser.on('open', () => {87            // console.log('now open')88            this._is_ready = true89            if (typeof this._on_ready === 'function')90                this._on_ready.apply(this);91        })92        /**93         * @type {Buffer}94         * @private95         */96        this._read_buffer = ''97        this._read_queue = []98        this._ser.on('data', buffer => {99            if (!this._read_buffer) {100                this._read_buffer = buffer101                //console.log(`[read-queue] received ${buffer.length} bytes =`, buffer)102                return103            }104            this._read_buffer = Buffer.concat([this._read_buffer, buffer])105            //console.log(`[read-queue] received ${buffer.length} bytes =`, this._read_buffer)106        })107        this._read_timer = setInterval(() => {108            if (!this._read_queue || !this._read_queue.length) return;109            //console.log(colors.magenta('read timer'))110            var read_req = this._read_queue[0],111                now = (new Date).getTime()112            if (now >= read_req.time_expire) {113                read_req.ng_callback('timeout')114                this._read_buffer.shift() // delete the first item from the queues115                return116            }117            if (!this._read_buffer) return;118            let bytes_to_take = this._read_buffer.length >= read_req.bytes_needed119                ? read_req.bytes_needed120                : this._read_buffer.length121            read_req.buffers.push(this._read_buffer.slice(0, bytes_to_take))122            read_req.bytes_needed -= bytes_to_take123            this._read_buffer = this._read_buffer.slice(bytes_to_take)124            // check if the request has fulfilled125            let out_buffer = Buffer.concat(read_req.buffers),126                check_ok127            if (!read_req.bytes_needed) {128                // no more bytes needed; perform a check then either accept or reject it129                if (read_req.check) {130                    check_ok = false131                    if ('function' === typeof read_req.check)132                        check_ok = read_req.check.apply(this, [out_buffer]);133                    else if ('string' === typeof read_req.check)134                        check_ok = read_req.check === out_buffer.toString('hex');135                    else136                        console.warn('[warn] expecting function or string in variable element "check" ; received : ',137                            read_req.check);138                }139                else check_ok = true;140                if (!check_ok) {141                    console.warn(`check failed; read_req.check=`, JSON.stringify(read_req.check))142                    read_req.ng_callback('check-failed')143                }144                // console.log(colors.green.bold('emitting buffer :'), out_buffer)145                read_req.ok_callback(out_buffer)146                this._read_queue.shift() // delete the first item from the queues147            }148        }, 10)149    }150    /**151     * @param {number} length152     *      number of bytes to expect to receive153     * @param {function|string} check154     *      if string, it must be a hex string, e.g. '00112233'155     *      if function, then the result Buffer is passed; to accept this data buffer, return TRUE156     * @param {number} [timeout]157     *      in millisecond158     * @return {Promise}159     *      if successful, resolves with : function(buffer) {..}160     *      if fail, rejects with : function(err_str) {..}161     * @protected162     */163    _read(length, check = '', timeout) {164        // console.log(`[read-queue] queuing read request for ${length} bytes`)165        if (typeof timeout !== 'number' || timeout) timeout = this._timeout;166        return new Promise((ok, ng) => {167            let now = (new Date).getTime()168            this._read_queue.push({169                time_in: now,170                time_expire: now + timeout,171                bytes_needed: length,172                buffers: [],173                check: check,174                ok_callback: ok,175                ng_callback: ng176            })177        })178    }179    close(timeout = 1000) {180        return new Promise((ok, ng) => {181            var timer = 0182            this._ser.on('close', () => {183                if (timer) clearTimeout(timer);184                ok()185            })186            this._ser.close()187            setTimeout(() => ng('timeout'), timeout)188        })189    }190    /**191     * @param {function} func192     */193    set on_ready(func) {194        if (typeof func === 'function') {195            this._on_ready = func;196            if (this._is_ready) func.apply(this);197        }198    }199    /**200     *201     * @return {boolean}202     */203    get is_ready() {204        return this._is_ready205    }206    /**207     *208     * @param {Buffer} buffer209     * @returns {Promise}210     *      if success, resolves with no arguments211     *      if fail, rejects with err_reason_str212     * @private213     */214    _write_serial(buffer) {215        if (!(buffer instanceof Buffer)) throw `expecting Buffer instance ; received : ${buffer}`;216        // console.log(colors.red.bold('writing :'), buffer2hex(buffer))217        return new Promise((ok, ng) => {218            if (this._ser) {219                this._ser.write(buffer)220                this._ser.drain(() => ok())221            }222            else ng('serial-port-not-ready');223        })224    }225    /**226     *227     * @param {...Buffer|string} _228     * @returns {Promise}229     * @private230     */231    _concat_and_write_serial(_) {232        let buffer = concat_buffer.apply(this, [].slice.call(arguments))233        return this._write_serial(buffer)234    }235    /**236     *237     * @param {number} length238     * @param {string} [encoding]239     *      if non-empty string, then response will be encoded in this encoding240     * @param {function} [check_func]241     *      should be : function (res_buffer_or_str) {..}242     *      return true to accept this response243     * @returns {Buffer|string|false}244     *      if fail returns false245     * @private246     */247    _read_serial(length, encoding, check_func) {248        console.log(`reading ${length} bytes from :`, this._data_in)249        let res = this._data_in_get(length)250        console.log('...', res)251        if (!res || !res.length) return false;252        if (encoding) res = res.toString(encoding);253        if (typeof check_func === 'function' && !check_func(res))  return false;254        console.log('read :', res)255        return res;256    }257    /**258     * @param {Buffer} buffer:259     * @return {number}260     */261    static _calculate_checksum(buffer) {262        var check_sum = 0263        for (const value of buffer.values()) {264            check_sum += value265        }266        // console.log('sum:', check_sum)267        let dcs = (-check_sum) & 0xff268        // console.log('dcs:', dcs)269        return dcs270    }271    /**272     *273     * @param {string|Buffer} command274     * @return {Promise}275     * @private276     */277    _card_command(command) {278        // console.log(colors.bgBlue.cyan.bold('[ex-commmand]'), command)279        return new Promise((ok, ng) => {280            let command_timeout = this._timeout >= (0x10000 / 2) ? 0xffff : this._timeout * 2,281                command_buffer = concat_buffer(282                    '\xd4\xa0',283                    int2strbinLE(command_timeout, 2),284                    String.fromCharCode(command.length + 1),285                    command286                )287            this._rw_command(command_buffer, buf =>288                buf.length >= 4289                && buf.toString('hex').indexOf('d5a100') === 0290                && buf.length === buf[3] + 3291            ).then(292                buffer => {293                    let card_command_out = buffer.slice(4)294                    // console.log(colors.bgBlue.cyan.bold('[ex-commmand OK]'), card_command_out)295                    ok(card_command_out)296                },297                error => ng({error: 'ex-command-failed', error2: error})298            )299        })300    }301    /**302     * @param {string|Buffer} command to send303     * @param {function|string} [check]304     *      if function, then the result Buffer will be passed; you should return a true to indicate acceptance305     *      if string, then the buffer is converted to string and compared against this string306     * @return {Promise}307     *      if success, resolves with : function (result_buffer) {..}308     *      if fail, rejects with : function (err_string) {..}309     *310     */311    _rw_command(command, check) {312        return new Promise((overall_ok, overall_ng) => {313            var me = this,314                self = this.constructor,315                send_buffer = command instanceof Buffer ? command : Buffer.from(command, 'ascii'),316                len = send_buffer.length,317                dcs = self._calculate_checksum(send_buffer)318            //console.log('-------------------------------------\nwill send command :', buffer2hex(send_buffer))319            this._data_in = ''320            this._ser.flush(() => {321                //322                // 0. send: payload length323                // 1. send: payload324                // 2. send: checksum325                // 3. recv: 6-byte response326                //327                let req = '\x00\x00\xff',328                    promise0329                if (len <= 255) {330                    // normal frame331                    promise0 = me._concat_and_write_serial(req,332                        String.fromCharCode(len),333                        String.fromCharCode((-len) & 0xff))334                }335                else {336                    // extended frame337                    // æªãã¹ãã§ã338                    let buffer1 = concat_buffer(req, '\xff\xff',339                        String.fromCharCode((len >> 8) & 0xff),340                        String.fromCharCode((len >> 0) & 0xff)341                    )342                    promise0 = me._concat_and_write_serial(buffer1,343                        String.fromCharCode(self._calculate_checksum(buffer1.slice(2)))344                    )345                }346                promise0.then(347                    () => {348                        let promise1 = me._write_serial(send_buffer)349                        promise1.then(350                            () => {351                                let promise2 = me._concat_and_write_serial(dcs, '\x00')352                                promise2.then(353                                    () => {354                                        // receive an ACK355                                        // console.log(colors.blue('expecting ack'))356                                        me._read(6, '0000ff00ff00').then(357                                            res_buffer => {358                                                // console.log(colors.blue.bold('got ack'))359                                                // got an ACK! receive a message360                                                me._read(5, buf => buf.toString('hex').indexOf('0000ff') === 0).then(361                                                    response_body => {362                                                        // got a message; determine response length363                                                        let response_len = 0364                                                        if (response_body[3] === 0xff && response_body[4] === 0xff) {365                                                            // ???366                                                            response_body = this._read_serial(3)367                                                            if (!response_body || self._calculate_checksum(response_body) !== 0)368                                                                return this._cancel().then(() => overall_ng('response-checksum-error'));369                                                            response_len = String.fromCharCode(370                                                                (response_body[5] << 8) | (response_body[6] << 0))371                                                        }372                                                        else {373                                                            if (self._calculate_checksum(response_body.slice(3)) !== 0)374                                                                return this._cancel().then(() => overall_ng('response-checksum-error'));375                                                            response_len = response_body[3];376                                                        }377                                                        if (response_len > self.MAX_RW_RESPONSE_LEN)378                                                            return this._cancel().then(() => overall_ng('response-too-long'));379                                                        // wait for response body380                                                        // console.log(colors.blue(`reading response : ${response_len} bytes`))381                                                        me._read(response_len).then(382                                                            response_body => {383                                                                // console.log(colors.blue.bold(`got response :`), response_body)384                                                                // got response body; compute DCS385                                                                let dcs = self._calculate_checksum(response_body)386                                                                // console.log('* response DCS :', dcs)387                                                                // compare DCS with provided one , which we will read now..388                                                                me._read(2, buf => buf[0] === dcs && buf[1] === 0x00).then(389                                                                    dcs_buffer => {390                                                                        // checksum OK391                                                                        if (check) {392                                                                            let check_ok = false393                                                                            if (typeof check === 'function')394                                                                                check_ok = check.apply(this, [response_body]);395                                                                            else if (typeof check === 'string')396                                                                                check_ok = response_body.toString('hex') === check;397                                                                            else398                                                                                console.warn('expecting string or function in "check"; received :', check);399                                                                        }400                                                                        if (!check)401                                                                            return this._cancel().then(() => overall_ng('check-failed'));402                                                                        // check OK403                                                                        return overall_ok(response_body)404                                                                    },405                                                                    err => this._cancel().then(() => overall_ng({406                                                                        error: 'response-checksum-invalid',407                                                                        error2: err408                                                                    }))409                                                                )410                                                            },411                                                            err => this._cancel().then(() => overall_ng({412                                                                error: 'read-response-failed',413                                                                error2: err414                                                            }))415                                                        )416                                                    },417                                                    err => this._cancel().then(() => overall_ng({418                                                        error: 'no-valid-message',419                                                        error2: err420                                                    }))421                                                )422                                            },423                                            err => this._cancel().then(() => overall_ng({424                                                error: 'no-ack',425                                                error2: err426                                            }))427                                        )428                                    },429                                    err => overall_ng({error: 'promise2-failed', error2: err})430                                )   // promise2.then431                            },432                            err => overall_ng({error: 'promise1-failed', error2: err})433                        ) // promise1.then434                    },435                    err => overall_ng({error: 'promise0-failed', error2: err})436                )  // promise0.then437            })  // flush438        })439    }   // end _send_and_receive440    /**441     * sends a cancel, duh442     * @returns {Promise}443     *      if successful, resolves with no arguments;444     *      if fail, resolves with one argument: err_str445     * @private446     */447    _cancel() {448        var me = this449        return new Promise(ok => {450//            console.log('sending cancel command ...')451            me._concat_and_write_serial('\x00\x00\xff\x00\xff\x00').then(452                () => {453                    setTimeout(() => {454                        me._ser.flush()455                        me._data_in = ''456                        ok()457                    }, 10)458                },459                err_str => ok(err_str)460            )461        })462    }463    init_device() {464        let me = this465        return new Promise((ok, ng) => {466            // console.log('serial port is now open')467            // 1. open device468            me._rw_command('\xd4\x32\x02\x00\x00\x00', 'd533').then(469                response_buffer1 => {470                    // console.log('## open device OK')471                    // 2. RFConfiguration (max retries)472                    me._rw_command('\xd4\x32\x05\x00\x00\x00', 'd533').then(473                        response_buffer2 => {474                            // console.log('## RFConfiguration OK')475                            // RFConfiguration (additional wait time = 24ms)476                            this._rw_command('\xd4\x32\x81\xb7', 'd533').then(477                                response_buffer3 => {478                                    // console.log('## RFConfiguration 2 OK')479                                    ok()480                                },481                                err => ng({error: 'RFConfiguration-2-failed', error2: err})482                            )483                        },484                        err => ng({error: 'RFConfiguration-1-failed', error2: err})485                    )486                },487                err => ng({error: 'open-device-failed', error2: err})488            )489        })490    }491    polling(system_code) {492        if (this._busy)493            return new Promise((ok, ng) => ng('busy'));494        this._busy = true495        // console.log("### polling")496        let me = this497        return new Promise((ok, ng) => {498            me._rw_command(499                concat_buffer('\xd4\x4a\x01\x01\x00', system_code, '\x00\x0f'),500                buf => {501                    let hex = buf.toString('hex');502                    return buf && (503                            hex.indexOf('d54b01011201') === 0 || hex.indexOf('d54b00') === 0504                        )505                }506            ).then(507                response_buffer1 => {508                    me._busy = false509                    let hex = response_buffer1.toString('hex');510                    if (hex.indexOf('d54b01011201') === 0) {511                        let idm = response_buffer1.slice(6, 6 + 8),512                            pmn = response_buffer1.slice(14, 14 + 8)513                        ok({idm: idm, pmn: pmn})514                    }515                    else ok();516                },517                err => {518                    me._busy = false519                    ng({error: 'InListPassiveTarget-failed', error2: err})520                }521            )522        })523    }524    /**525     *526     * @param {...Buffer|string} _527     * @returns {Buffer}528     * @private529     */530    static _concat_buffer(_) {531        let concat_from = []532        for (let i = 0; i < arguments.length; ++i) {533            let arg = arguments[i]534            concat_from.push(arg instanceof Buffer ? arg : new Buffer(arg, 'ascii'))535        }536        return Buffer.concat(concat_from)537    }538    _request_service(idm, service_code) {539        let me = this,540            self = this.constructor541        return new Promise((ok, ng) => {542            // construct command : 02 <IDM> 01 <SERVICE_CODE>543            let command = self._concat_buffer('\x02', idm, '\x01', service_code),544                res_prefix_expected = self._concat_buffer('\x03', idm).toString('hex')545            // console.log('requesting service; sending command:', command, '; expecting res-prefix:', res_prefix_expected)546            // console.log(colors.bgMagenta.yellow.bold('sending card-command'))547            this._card_command(command, buf => {548                    // console.log(colors.bgMagenta.yellow.bold('request-service : checking buffer: '), buf)549                    return buf550                        && buf.length === 12551                        && buf.toString('hex').indexOf(res_prefix_expected) === 0552                        && buf.slice(10).toString('hex') !== 'ffff'553                }554            ).then(555                response_buffer => ok(),556                err => ng({error: 'request-service-failed', error2: err})557            )558        })559    }560    _read_without_encryption(idm, service_code, block_number) {561        // æå·åãªãã§èªã562        let me = this,563            self = this.constructor564        return new Promise((ok, ng) => {565            let command = self._concat_buffer('\x06', idm, '\x01', //  ãµã¼ãã¹æ°566                service_code, '\x01',// ãããã¯æ°(ãªããè¤æ°æå®ããã¨ã¨ã©ã¼ãè¿ã)567                '\x80', String.fromCharCode(block_number)568                ),569                res_prefix_expected = self._concat_buffer('\x07', idm).toString('ascii')570            this._card_command(command, buf =>571                buf && buf.length === 28572                && (buf.toString('ascii').indexOf(res_prefix_expected) === 0)573            ).then(574                response_buffer => ok(response_buffer.slice(12)),575                err => ng({error: 'rw-command-failed', error2: err})576            )577        })578    }579    _read_without_encryption2(idm, service_code, block_number, length) {580        let me = this581        me._busy = true582        // console.log(colors.bgCyan.yellow.bold(`read without encryption; block ${block_number} , len ${length}`))583        return new Promise((ok, ng) => {584            let tasks = range(length).map(585                i => {586                    return () => new Promise((task_ok, task_ng) => {587                        me._read_without_encryption(idm, service_code, block_number + i).then(588                            buf => task_ok(buf),589                            err => {590                                console.warn(colors.bgRed.yellow.bold(`read-without-encryption-failed ; block: ${block_number + i} ; error :`), err)591                                return task_ng({592                                    error: 'read-without-encryption-failed',593                                    error2: err,594                                    block_number: block_number + i595                                })596                            }597                        )598                    })599                }600            )601            serial(tasks).then(602                results => {603                    me._busy = false604                    // console.log('tasks completed!')605                    ok(Buffer.concat(results))606                },607                err => {608                    me._busy = false609                    return ng({error: 'read-without-encryption2-task-error', error2: err})610                }611            )612        })613    }614    read_block(idm, service_code, block_number, length) {615        // console.log(colors.bgWhite.black(' ### reading block ### '))616        // åå¨ç¢ºèªãã¦ããèªã617        let me = this618        return new Promise((ok, ng) => {619            me._request_service(idm, service_code).then(620                () => {621                    // console.log(colors.bgMagenta.yellow.bold('request service OK!'))622                    me._read_without_encryption2(idm, service_code, block_number, length).then(623                        buf => ok(buf),624                        err => ng({error: 'read-without-encryption2-failed', error2: err})625                    )626                },627                err => ng({error: 'request-service-failed', error2: err})628            )629        })630    }631    read_service(idm, sevice) {632        var self = this.constructor633        if (!sevice.service_code || !sevice.blocks)634            throw 'expecting service_dict to be {service_code:xx, blocks:xx}';635        return new Promise((read_service_ok, read_service_ng) => {636            let service_code = sevice.service_code,637                blocks = sevice.blocks,638                processing = sevice.processing,639                funcs = [];640            for (let i = 0; i < blocks; ++i) {641                funcs.push(() => this.read_block(idm, service_code, i, blocks))642            }643            //  run each func sequentially644            serial(funcs).then(645                results => read_service_ok(processing(results)),646                err => read_service_ng(err)647            )648        })649    }650}651Rcs620s.SYSTEM_CODE = {652    SUICA: '\x00\x03',653    COMMON: '\xfe\x00',654    SETAMARU: '\x80\x2B',655    IRUCA: '\x80\xDE'656}657Rcs620s.SERVICES = {658    SUICA: {659        // å±æ§æå ± : http://jennychan.web.fc2.com/format/suica.html#008B660        PROPERTIES: {661            service_code: '\x8b\x00', blocks: 1, processing: results => {662                let data = results[0]663                if (!data) return;664                return {665                    // card_type: 'wip',666                    // card_region: 'wip',667                    balance: read_number(data, 11, 2, 'LE')668                }669            }670        },671        // -- below are work in progress --672        USAGE_HISTORY: {service_code: '\x0f\x09', blocks: 20}, // å©ç¨å±¥æ´673        TICKET_HISTORY: {service_code: '\x8f\x10', blocks: 3}, // æ¹æå¥åºå ´å±¥æ´674        SF_TICKET_HISTORY: {service_code: '\xcb\x10', blocks: 3}, // SFå¥å ´é§è¨é²675        FARE_HISTORY: {service_code: '\x4b\x81', blocks: 36} // æé çºå¸/æ¹æè¨é²676    }677}678Rcs620s.MAX_RW_RESPONSE_LEN = 265...

structnrf__block__dev__s_1_1nrf__block__dev__ops__s.js

Source:structnrf__block__dev__s_1_1nrf__block__dev__ops__s.js

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enumvalues_72.js

Source:enumvalues_72.js

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Using AI Code Generation

1var wpt = require('./wpt.js');2wpt.read_req(url, function(error, data) {3  if (error) {4    console.log(error);5  } else {6    console.log(data);7  }8});

Using AI Code Generation

1var wpt = require('./wpt-api.js');2 if (err) {3 console.log(err);4 } else {5 console.log(data);6 }7});

Using AI Code Generation

1var wpt = require('./wpt.js');2var config = require('./config.js');3var options = {4}5wpt.read_req(options, function (err, data) {6    if (err) {7        console.log(err);8    }9    else {10        console.log(data);11    }12})

Using AI Code Generation

1var wpt = require('./wpt.js');2var fs = require('fs');3	console.log(data);4	fs.writeFile("output.json", JSON.stringify(data, null, 4), function(err) {5	    if(err) {6	        console.log(err);7	    } else {8	        console.log("JSON saved to output.json");9	    }10	}); 11});12var wpt = require('./wpt.js');13var fs = require('fs');14	console.log(data);15	fs.writeFile("output.json", JSON.stringify(data, null, 4), function(err) {16	    if(err) {17	        console.log(err);18	    } else {19	        console.log("JSON saved to output.json");20	    }21	}); 22});23var wpt = require('./wpt.js');24var fs = require('fs');25	console.log(data);26	fs.writeFile("output.json", JSON.stringify(data, null, 4), function(err) {27	    if(err) {28	        console.log(err);29	    } else {30	        console.log("JSON saved to output.json");31	    }32	}); 33});34var wpt = require('./wpt.js');35var fs = require('fs');36	console.log(data);37	fs.writeFile("output.json", JSON.stringify(data, null, 4), function(err) {38	    if(err) {39	        console.log(err);40	    } else {41	        console.log("JSON saved to output.json");42	    }43	}); 44});45var wpt = require('./wpt.js');46var fs = require('fs');

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.