Utilities

Logging, waiting, time, random numbers, Base64 and HTTP requests. All three log levels are uploaded to the task log and show up in the console in real time.

Resumen

·Three log levels — logd / logi / loge; the console shows debug in grey and errors in red
·randomInt / randomFloat / randomChoice add randomness to waits, taps and wording
·httpGet / httpPost never throw on failure and always return { ok, status, text, json, headers, error }

logd#

A debug log line: the details you look at while troubleshooting. It is uploaded too and shows in grey in the log panel.

typescript

logd(message: any): void;

Parámetros

Nombre	Tipo	Obligatorio	Por defecto	Descripción
`message`	`any`	Sí	—	What to log. Objects are serialised to JSON; anything else is converted to a string.

Notas

Keep it out of tight loops: the server keeps only the most recent part of each task's log, and noise pushes out what matters.

Ejemplo

javascript

logd(client.windowSize());

Véase también logi、loge

logi#

An info log line: which step the script reached and what it got.

typescript

logi(message: any): void;

Parámetros

Nombre	Tipo	Obligatorio	Por defecto	Descripción
`message`	`any`	Sí	—	What to log. Objects are serialised to JSON; anything else is converted to a string.

Ejemplo

javascript

logi('step 1 done');

Véase también logd、loge

loge#

An error log line for failures. It is highlighted in red in the log panel.

typescript

loge(message: any): void;

Parámetros

Nombre	Tipo	Obligatorio	Por defecto	Descripción
`message`	`any`	Sí	—	What to log. Objects are serialised to JSON; anything else is converted to a string.

Ejemplo

javascript

loge('the login button never appeared');

Véase también logi

setClickLog#

Turn click logging on or off. clickElement / clickImage / clickText record taps and misses in the task log by default; turn it off in busy loops so the log stays readable.

typescript

setClickLog(on: boolean): boolean;

Parámetros

Nombre	Tipo	Obligatorio	Por defecto	Descripción
`on`	`boolean`	Sí	—	true to log, false to stay quiet.

Valor devuelto

Tipo	Descripción
`boolean`	The previous setting.

Notas

Only these three functions are affected. Coordinate taps such as client.click never log.

Ejemplo

javascript

setClickLog(false);
for (var i = 0; i < 50; i++) {
  clickElement('label', 'Next', 1);
}
setClickLog(true);

Véase también clickElement、clickImage、clickText

sleep#

Wait for the given number of seconds. Returns immediately when the task is stopped.

typescript

sleep(seconds: number): void;

Parámetros

Nombre	Tipo	Obligatorio	Por defecto	Descripción
`seconds`	`number`	Sí	—	How many seconds to wait; fractions are allowed.

Ejemplo

javascript

sleep(1.5);

Véase también randomFloat、shouldStop

getNowTimestamp#

The current Unix timestamp in seconds (an integer).

typescript

getNowTimestamp(): number;

Valor devuelto

Tipo	Descripción
`number`	The number of seconds since 1970-01-01 00:00:00 UTC.

Notas

To measure elapsed time, store the timestamp at the start and subtract it later to get the seconds that passed. For milliseconds use Date.now().

Ejemplo

javascript

var start = getNowTimestamp();
sleep(2);
logi(getNowTimestamp() - start);

Véase también getNowTime、sleep

getNowTime#

The current time as 2026-10-01 14:05:09, in the device's local time zone.

typescript

getNowTime(): string;

Valor devuelto

Tipo	Descripción
`string`	"YYYY-MM-DD HH:MM:SS", with month, day, hour, minute and second zero-padded to two digits.

Notas

For the date only take the first 10 characters: getNowTime().slice(0, 10); for hours and minutes only: getNowTime().slice(11, 16).

Ejemplo

javascript

logi('started at ' + getNowTime());

Véase también getNowTimestamp

randomInt#

A random integer with both ends included: randomInt(1, 6) is a die roll.

typescript

randomInt(min: number, max: number): number;

Parámetros

Nombre	Tipo	Obligatorio	Por defecto	Descripción
`min`	`number`	Sí	—	The lower bound (inclusive).
`max`	`number`	Sí	—	The upper bound (inclusive).

Valor devuelto

Tipo	Descripción
`number`	An integer in [min, max]. Swapped bounds are handled.

Ejemplo

javascript

var n = randomInt(1, 6);

Véase también randomFloat、randomChoice

randomFloat#

A random decimal with both ends included, kept to 1 decimal place by default: randomFloat(1.5, 3) may give 1.5, 2.3 or 3. For example, pause for a random while between rounds: sleep(randomFloat(1.5, 3)).

typescript

randomFloat(min: number, max: number, digits?: number): number;

Parámetros

Nombre	Tipo	Obligatorio	Por defecto	Descripción
`min`	`number`	Sí	—	The lower bound (inclusive).
`max`	`number`	Sí	—	The upper bound (inclusive).
`digits`	`number`	No	`1`	How many decimal places to keep; an integer from 0 to 10.

Valor devuelto

Tipo	Descripción
`number`	A decimal in [min, max] with digits decimal places. Swapped bounds are handled.

Excepciones

Excepción	Cuándo se lanza
`WDAError`INVALID_ARGUMENT	digits is not an integer from 0 to 10.

Notas

When the range is too narrow to hold two different values at that precision, more places are kept automatically: at 1 decimal place randomFloat(0.45, 0.55) could only ever be 0.5, so it returns two-decimal values such as 0.47 or 0.52. The result always stays inside [min, max].
For values that need to be fine-grained, such as screen-ratio coordinates, pass the precision: client.click(randomFloat(0.3, 0.7, 3), randomFloat(0.4, 0.6, 3)). At 1 decimal place the tap could only land on 0.3, 0.4 and so on.

Ejemplo

javascript

sleep(randomFloat(1.5, 3));
var x = randomFloat(0.2, 0.8, 3);

Véase también randomInt、randomChoice、sleep

randomChoice#

Pick one item from an array at random, each with an equal chance.

typescript

randomChoice<T>(list: T[]): T | null;

Parámetros

Nombre	Tipo	Obligatorio	Por defecto	Descripción
`list`	`T[]`	Sí	—	The candidates.

Valor devuelto

Tipo	Descripción
`T \| null`	The chosen item, or null for an empty array.

Excepciones

Excepción	Cuándo se lanza
`WDAError`INVALID_ARGUMENT	The argument is not an array — for example, the candidates were passed as separate arguments.

Ejemplo

javascript

var greeting = randomChoice(['Hello', 'Good morning', 'Hi']);
logi(greeting);

Véase también randomInt、randomFloat

base64Encode#

Encode text as Base64 using UTF-8, so non-ASCII text survives.

typescript

base64Encode(text: string): string;

Parámetros

Nombre	Tipo	Obligatorio	Por defecto	Descripción
`text`	`string`	Sí	—	The text.

Valor devuelto

Tipo	Descripción
`string`	The Base64 string.

Ejemplo

javascript

var b64 = base64Encode('hello');

Véase también base64Decode

base64Decode#

Decode Base64 back to text (UTF-8).

typescript

base64Decode(base64: string): string;

Parámetros

Nombre	Tipo	Obligatorio	Por defecto	Descripción
`base64`	`string`	Sí	—	The Base64 string.

Valor devuelto

Tipo	Descripción
`string`	The decoded text.

Ejemplo

javascript

var text = base64Decode('aGVsbG8=');

Véase también base64Encode

httpGet#

Send a GET request.

typescript

httpGet(url: string, timeoutSec?: number, headers?: Record<string, string>): HttpResult;

type HttpResult = {
  ok: boolean;
  status: number;
  text: string;
  json: any;
  headers: Record<string, string>;
  error: string;
};

Parámetros

Nombre	Tipo	Obligatorio	Por defecto	Descripción
`url`	`string`	Sí	—	The full address, starting with http:// or https://. Put query parameters in the address; non-ASCII text and spaces are encoded for you.
`timeoutSec`	`number`	No	`15`	The longest wait, in seconds.
`headers`	`Record<string, string>`	No	—	Request headers, for example { Authorization: 'Bearer xxx' }.

Valor devuelto

Tipo	Descripción
`HttpResult`	{ ok, status, text, json, headers, error }. ok means a 2xx status; status 0 means no response arrived (no network, timeout, task stopped) and error says why; json holds the parsed body when the response is JSON and null otherwise; header names are lowercase. Failures do not throw — check ok.

Excepciones

Excepción	Cuándo se lanza
`WDAError`INVALID_ARGUMENT	The address does not start with http(s), the wait is not a number or exceeds 600, or the headers are not an object.

Ejemplo

javascript

var r = httpGet('https://api.example.com/items?page=1');
if (r.ok) {
  logi(r.json.items.length);
} else {
  loge(r.status + ' ' + r.error);
}

Véase también httpPost

httpPost#

Send a POST request. A string body is sent as-is ('a=1&b=2' goes out as a form, JSON text as JSON); an object is sent as JSON.

typescript

httpPost(url: string, body?: string | object, timeoutSec?: number, headers?: Record<string, string>): HttpResult;

Parámetros

Nombre	Tipo	Obligatorio	Por defecto	Descripción
`url`	`string`	Sí	—	The full address, starting with http:// or https://. Put query parameters in the address; non-ASCII text and spaces are encoded for you.
`body`	`string \| object`	No	—	The request body. A Content-Type header you set yourself is never overridden.
`timeoutSec`	`number`	No	`15`	The longest wait, in seconds.
`headers`	`Record<string, string>`	No	—	Request headers, for example { Authorization: 'Bearer xxx' }.

Valor devuelto

Tipo	Descripción
`HttpResult`	{ ok, status, text, json, headers, error }. ok means a 2xx status; status 0 means no response arrived (no network, timeout, task stopped) and error says why; json holds the parsed body when the response is JSON and null otherwise; header names are lowercase. Failures do not throw — check ok.

Excepciones

Excepción	Cuándo se lanza
`WDAError`INVALID_ARGUMENT	The address does not start with http(s), the wait is not a number or exceeds 600, or the headers are not an object.

Notas

Requests go to whatever address the script names; the script's author is responsible for where that data goes.

Ejemplo

javascript

var r = httpPost('https://example.com/report', 'device=' + getDeviceId() + '&status=ok');
if (!r.ok) {
  loge(r.status + ' ' + r.error);
}

Véase también httpGet