WebRequest error 4014 in MQL5: Need help with alternatives

forofx358 2024.09.12 11:04

Hi everyone,

I'm developing an MQL5 expert advisor that uses WebRequest to communicate with a Python server for trading signal analysis. However, I'm encountering the error 4014 "Function is not allowed for call" when trying to use WebRequest.

I have already tried the following:

- Adding the server URL to the list of allowed URLs in the MT5 settings

- Checking the firewall and antivirus settings to ensure MT5 and Python are not blocked

- Using 127.0.0.1 instead of localhost

Here's a snippet of the relevant code:

int statusCode = WebRequest("POST", url, NULL, NULL, requestData, responseData, responseHeaders);

if(statusCode == 200)
{
    // Parse the JSON response
    jsonResponse.Deserialize(responseData);

    // Get the signal from the response  
    signal = jsonResponse["signal"].ToStr();
}
else
{
    PrintFormat("Error getting signal from server. Status code: %d, Error: %d", statusCode, GetLastError());
}

I'm considering using an alternative library like mql-http to bypass the WebRequest restrictions. However, I wanted to check if there are any other solutions or workarounds I could try first.

Any suggestions or insights would be greatly appreciated. Thank you in advance!

------------------------------------------------------------

* MT5 Journal log:

2024.09.12 17:38:02.773 MetaTester 5 started on 127.0.0.1:3000

2024.09.12 17:38:02.781 cloud network mode is off

2024.09.12 17:38:02.781 initialization finished

2024.09.12 17:38:02.853 login (build 4476)

2024.09.12 17:38:03.493 12832 bytes of account info loaded

2024.09.12 17:38:03.493 1478 bytes of tester parameters loaded

2024.09.12 17:38:03.493 5316 bytes of input parameters loaded

2024.09.12 17:38:03.499 12577 bytes of symbols list loaded (1479 symbols)

2024.09.12 17:38:03.499 expert file added: Experts\LWSwiftTrendNavigator_AUDUSD\LWSwiftTrendNavigator_AUDUSD.ex5. 53125 bytes loaded

2024.09.12 17:38:03.619 6053 Mb available, 75 blocks set for ticks generating

2024.09.12 17:38:03.619 initial deposit 3000.00 USD, leverage 1:100

2024.09.12 17:38:03.620 successfully initialized

2024.09.12 17:38:03.620 68 Kb of total initialization data received

2024.09.12 17:38:03.621 Intel Core i7-10510U @ 1.80GHz, 16147 MB

2024.09.12 17:38:03.648 AUDUSD: symbol to be synchronized

2024.09.12 17:38:03.648 AUDUSD: symbol synchronized, 3880 bytes of symbol info received

2024.09.12 17:38:03.652 AUDUSD: history synchronization started

2024.09.12 17:38:03.653 AUDUSD: load 27 bytes of history data to synchronize in 0:00:00.001

2024.09.12 17:38:03.654 AUDUSD: history synchronized from 2020.01.02 to 2023.12.29

2024.09.12 17:38:03.657 AUDUSD: ticks synchronization started

2024.09.12 17:38:03.658 AUDUSD: load 34 bytes of tick data to synchronize in 0:00:00.000

2024.09.12 17:38:03.658 AUDUSD: history ticks synchronized from 2021.01.04 to 2023.12.27

2024.09.12 17:38:03.796 AUDUSD,H4: history cache allocated for 3033 bars and contains 2998 bars from 2022.01.03 00:00 to 2023.12.01 20:00

2024.09.12 17:38:03.796 AUDUSD,H4: history begins from 2022.01.03 00:00

2024.09.12 17:38:03.818 AUDUSD,H4 (XMTrading-MT5 3): generating based on real ticks

2024.09.12 17:38:03.818 testing with execution delay 50 milliseconds

2024.09.12 17:38:03.819 AUDUSD,H4: testing of Experts\LWSwiftTrendNavigator_AUDUSD\LWSwiftTrendNavigator_AUDUSD.ex5 from 2023.12.04 00:00 to 2023.12.10 00:00 started with inputs:

2024.09.12 17:38:03.819 =

2024.09.12 17:38:03.819 InpServerURL=http://127.0.0.1:5000/analyze

2024.09.12 17:38:03.819 InpToken=

2024.09.12 17:38:03.819 =

2024.09.12 17:38:03.819 InpVolumeSize=0.01

2024.09.12 17:38:03.819 InpMagicNumber=202305

2024.09.12 17:38:03.819 InpSlippage=5

2024.09.12 17:38:03.819 =

2024.09.12 17:38:03.819 InpTradeTimeframe=16388

2024.09.12 17:38:03.819 InpHigherTimeframe=16408

2024.09.12 17:38:03.930 AUDUSD : real ticks begin from 2021.01.04 00:00:00

2024.09.12 17:38:04.083 AUDUSD,Daily: history cache allocated for 511 bars and contains 505 bars from 2022.01.03 00:00 to 2023.12.01 00:00

2024.09.12 17:38:04.095 AUDUSD,Daily: 1 bar from 2023.12.04 00:00 added

2024.09.12 17:38:04.095 AUDUSD,Daily: history begins from 2022.01.03 00:00

2024.09.12 17:38:04.095 2023.12.04 00:00:02 Error getting signal from server. Status code: -1, Error: 4014

2024.09.12 17:38:05.368 2023.12.04 04:00:00 Error getting signal from server. Status code: -1, Error: 4014

2024.09.12 17:38:06.444 2023.12.04 08:00:00 Error getting signal from server. Status code: -1, Error: 4014

2024.09.12 17:38:07.975 2023.12.04 12:00:00 Error getting signal from server. Status code: -1, Error: 4014

2024.09.12 17:38:09.467 2023.12.04 16:00:00 Error getting signal from server. Status code: -1, Error: 4014

2024.09.12 17:38:11.935 2023.12.04 20:00:00 Error getting signal from server. Status code: -1, Error: 4014

2024.09.12 17:38:12.839 2023.12.05 00:00:30 Error getting signal from server. Status code: -1, Error: 4014

2024.09.12 17:38:13.797 2023.12.05 04:00:00 Error getting signal from server. Status code: -1, Error: 4014

2024.09.12 17:38:15.032 2023.12.05 08:00:00 Error getting signal from server. Status code: -1, Error: 4014

2024.09.12 17:38:16.557 2023.12.05 12:00:00 Error getting signal from server. Status code: -1, Error: 4014

2024.09.12 17:38:18.099 2023.12.05 16:00:01 Error getting signal from server. Status code: -1, Error: 4014

2024.09.12 17:38:20.812 2023.12.05 20:00:00 Error getting signal from server. Status code: -1, Error: 4014

2024.09.12 17:38:21.599 2023.12.06 00:00:31 Error getting signal from server. Status code: -1, Error: 4014

2024.09.12 17:38:22.558 2023.12.06 04:00:00 Error getting signal from server. Status code: -1, Error: 4014

2024.09.12 17:38:23.488 2023.12.06 08:00:00 Error getting signal from server. Status code: -1, Error: 4014

2024.09.12 17:38:24.838 2023.12.06 12:00:00 Error getting signal from server. Status code: -1, Error: 4014

2024.09.12 17:38:26.277 2023.12.06 16:00:00 Error getting signal from server. Status code: -1, Error: 4014

2024.09.12 17:38:28.227 2023.12.06 20:00:00 Error getting signal from server. Status code: -1, Error: 4014

2024.09.12 17:38:28.991 2023.12.07 00:01:35 Error getting signal from server. Status code: -1, Error: 4014

2024.09.12 17:38:29.738 2023.12.07 04:00:00 Error getting signal from server. Status code: -1, Error: 4014

2024.09.12 17:38:30.864 2023.12.07 08:00:00 Error getting signal from server. Status code: -1, Error: 4014

2024.09.12 17:38:32.568 2023.12.07 12:00:00 Error getting signal from server. Status code: -1, Error: 4014

2024.09.12 17:38:34.285 2023.12.07 16:00:00 Error getting signal from server. Status code: -1, Error: 4014

2024.09.12 17:38:36.944 2023.12.07 20:00:00 Error getting signal from server. Status code: -1, Error: 4014

2024.09.12 17:38:38.036 2023.12.08 00:00:51 Error getting signal from server. Status code: -1, Error: 4014

2024.09.12 17:38:39.145 2023.12.08 04:00:00 Error getting signal from server. Status code: -1, Error: 4014

2024.09.12 17:38:40.390 2023.12.08 08:00:00 Error getting signal from server. Status code: -1, Error: 4014

2024.09.12 17:38:41.988 2023.12.08 12:00:00 Error getting signal from server. Status code: -1, Error: 4014

2024.09.12 17:38:43.934 2023.12.08 16:00:00 Error getting signal from server. Status code: -1, Error: 4014

2024.09.12 17:38:47.019 2023.12.08 20:00:00 Error getting signal from server. Status code: -1, Error: 4014

2024.09.12 17:38:47.932 final balance 3000.00 USD

2024.09.12 17:38:47.936 AUDUSD,H4: 373544 ticks, 30 bars generated. Environment synchronized in 0:00:00.154. Test passed in 0:00:44.292 (including ticks preprocessing 0:00:00.094).

2024.09.12 17:38:47.936 AUDUSD,H4: total time from login to stop testing 0:00:44.446 (including 0:00:00.154 for history data synchronization)

2024.09.12 17:38:47.937 399 Mb memory used including 0.94 Mb of history data, 64 Mb of tick data

2024.09.12 17:38:47.937 log file "C:\Users\foro3\AppData\Roaming\MetaQuotes\Tester\C4171FD2B38378D6406D5C84412B5F20\Agent-127.0.0.1-3000\logs\20240912.log" written

2024.09.12 17:38:47.938 test Experts\LWSwiftTrendNavigator_AUDUSD\LWSwiftTrendNavigator_AUDUSD.ex5 on AUDUSD,H4 thread finished

2024.09.12 17:38:47.962 prepare for shutdown

2024.09.12 17:38:47.962 shutdown finished

</MT5 Journal log>

------------------------------------------------------------

* MT5 Operation Log:

2024.09.12 17:37:12.896 Tester Cloud servers switched off

2024.09.12 17:38:02.072 Tester "LWSwiftTrendNavigator_AUDUSD\LWSwiftTrendNavigator_AUDUSD.ex5" 64 bit

2024.09.12 17:38:02.326 Tester AUDUSD: preliminary downloading of history ticks started, it may take quite a long time

2024.09.12 17:38:02.326 Tester AUDUSD: preliminary downloading of history ticks completed

2024.09.12 17:38:02.326 Tester AUDUSD: ticks data begins from 2021.01.04 00:00

2024.09.12 17:38:02.326 Tester AUDUSD: preliminary downloading of history ticks started, it may take quite a long time

2024.09.12 17:38:02.326 Tester AUDUSD: preliminary downloading of history ticks completed

2024.09.12 17:38:02.326 Tester AUDUSD: ticks data begins from 2021.01.04 00:00

2024.09.12 17:38:02.331 Core 1 agent process started on 127.0.0.1:3000

2024.09.12 17:38:02.331 Core 1 connecting to 127.0.0.1:3000

2024.09.12 17:38:02.842 Core 1 connected

2024.09.12 17:38:02.855 Core 1 authorized (agent build 4476)

2024.09.12 17:38:02.858 Tester AUDUSD,H4 (XMTrading-MT5 3): visual testing of Experts\LWSwiftTrendNavigator_AUDUSD\LWSwiftTrendNavigator_AUDUSD.ex5 from 2023.12.04 00:00 to 2023.12.10 00:00

2024.09.12 17:38:03.622 Core 1 common synchronization completed

2024.09.12 17:38:03.658 Core 1 AUDUSD: ticks synchronized already [43 bytes]

2024.09.12 17:38:47.962 Core 1 connection closed

</MT5 Operation Log>

------------------------------------------------------------

* MT5 logs:

MO 0 13:33:08.698 Terminal XM Trading MT5 x64 build 4476 started for Tradexfin Limited

OD 0 13:33:08.698 Terminal Windows 11 build 22631, 8 x Intel Core i7-10510U @ 1.80GHz, AVX2, 7 / 15 Gb memory, 483 / 939 Gb disk, UAC, GMT+9

DD 0 13:33:08.698 Terminal C:\Users\foro3\AppData\Roaming\MetaQuotes\Terminal\C4171FD2B38378D6406D5C84412B5F20

DJ 0 13:33:11.207 Experts expert LWSwiftTrendNavigator_AUDUSD (AUDUSD,H4) loaded successfully

JO 0 13:33:11.278 Experts expert LWSwiftTrendNavigator_AUDUSD (AUDUSD,H4) loaded successfully

RQ 0 13:33:11.800 Network '75171169': authorized on XMTrading-MT5 3 through Access Server JP 8 (ping: 162.69 ms, build 4260)

PL 0 13:33:11.800 Network '75171169': previous successful authorization performed from 217.178.206.250 on 2024.09.09 07:11:02

CS 0 13:33:12.643 Network '75171169': terminal synchronized with Tradexfin Limited: 0 positions, 0 orders, 1479 symbols, 0 spreads

IL 0 13:33:12.643 Network '75171169': trading has been enabled - hedging mode

MF 0 13:33:12.714 Trades use MetaTrader VPS Hosting Service to speed up the execution: 4.12 ms via 'MQL5 London LD4 17' instead of 162.69 ms

OK 0 13:33:13.892 Network '75171169': scanning network for access points

FP 0 13:33:13.950 MQL5.community activated for 'forofx358', balance: 0.00

HQ 0 13:33:16.634 MQL5.chats activated for 'forofx358'

MJ 0 13:33:17.238 Network '75171169': scanning network finished

CS 1 16:04:42.467 Network '75171169': connection to XMTrading-MT5 3 lost

LJ 0 16:04:42.836 Network '75171169': authorized on XMTrading-MT5 3 through Access Server JP 8 (ping: 164.09 ms, build 4260)

KG 0 16:04:42.836 Network '75171169': previous successful authorization performed from 217.178.206.250 on 2024.09.12 07:33:12

HH 0 16:04:44.938 Network '75171169': terminal synchronized with Tradexfin Limited: 0 positions, 0 orders, 1479 symbols, 0 spreads

FG 0 16:04:44.938 Network '75171169': trading has been enabled - hedging mode

RP 1 16:17:49.708 Network '75171169': connection to XMTrading-MT5 3 lost

NG 0 16:17:50.578 Network '75171169': authorized on XMTrading-MT5 3 through Access Server JP 8 (ping: 164.09 ms, build 4260)

FJ 0 16:17:50.578 Network '75171169': previous successful authorization performed from 217.178.206.250 on 2024.09.12 10:04:44

EE 0 16:17:52.747 Network '75171169': terminal synchronized with Tradexfin Limited: 0 positions, 0 orders, 1479 symbols, 0 spreads

GJ 0 16:17:52.747 Network '75171169': trading has been enabled - hedging mode

MQ 0 16:23:21.132 OpenCL opencl.dll successfully loaded

NF 0 16:23:21.235 OpenCL device #0: GPU 'Intel UHD Graphics' with OpenCL 3.0 (24 units, 1150 MHz, 6458 Mb, version 30.0.100.9864, rating 425)

IF 0 16:24:22.195 Experts expert LWSwiftTrendNavigator_AUDUSD (AUDUSD,H4) loaded successfully

DJ 0 17:08:17.577 Experts expert LWSwiftTrendNavigator_AUDUSD (AUDUSD,H4) loaded successfully

DR 0 17:36:51.545 Experts expert LWSwiftTrendNavigator_AUDUSD (AUDUSD,H4) removed

KL 0 17:36:59.663 Experts expert LWSwiftTrendNavigator_AUDUSD (AUDUSD,H4) removed

HI 0 17:36:59.664 Experts expert LWSwiftTrendNavigator_AUDUSD (AUDUSD,H4) removed

EL 0 17:37:01.241 Terminal exit with code 0

RD 0 17:37:01.245 Network '75171169': disconnected from XMTrading-MT5 3

DS 0 17:37:01.408 Terminal stopped with 0

IJ 0 17:37:01.437 Terminal shutdown with 0

CO 0 17:37:11.065 Terminal XM Trading MT5 x64 build 4476 started for Tradexfin Limited

GD 0 17:37:11.066 Terminal Windows 11 build 22631, 8 x Intel Core i7-10510U @ 1.80GHz, AVX2, 6 / 15 Gb memory, 483 / 939 Gb disk, UAC, GMT+9

OD 0 17:37:11.066 Terminal C:\Users\foro3\AppData\Roaming\MetaQuotes\Terminal\C4171FD2B38378D6406D5C84412B5F20

NJ 0 17:37:13.168 Experts expert LWSwiftTrendNavigator_AUDUSD (AUDUSD,H4) loaded successfully

CN 0 17:37:13.240 Experts expert LWSwiftTrendNavigator_AUDUSD (AUDUSD,H4) loaded successfully

CQ 0 17:37:13.997 Network '75171169': authorized on XMTrading-MT5 3 through Access Server JP 8 (ping: 164.09 ms, build 4260)

QL 0 17:37:13.997 Network '75171169': previous successful authorization performed from 217.178.206.250 on 2024.09.12 10:17:51

JS 0 17:37:14.691 Network '75171169': terminal synchronized with Tradexfin Limited: 0 positions, 0 orders, 1479 symbols, 0 spreads

DM 0 17:37:14.691 Network '75171169': trading has been enabled - hedging mode

LF 0 17:37:14.744 Trades use MetaTrader VPS Hosting Service to speed up the execution: 3.43 ms via 'MQL5 London LD4 25' instead of 164.09 ms

II 0 17:37:14.844 MQL5.community activated for 'forofx358', balance: 0.00

DH 0 17:37:15.172 MQL5.chats activated for 'forofx358'

LF 0 17:37:21.482 Experts expert LWSwiftTrendNavigator_AUDUSD (AUDUSD,H4) loaded successfully

</MT5 logs>

------------------------------------------------------------

Best regards,

Akira Iseki.

Alain Verleyen 2024.09.12 20:36 #1

Again the same topic...please do some researches before posting or maybe just read the documentation ?

WebRequest() cannot be executed in the Strategy Tester.

Documentation on MQL5: MQL5 programs / Testing Trading Strategies

www.mql5.com

The idea of automated trading is appealing by the fact that the trading robot can work non-stop for 24 hours a day, seven days a week. The robot...

forofx358 2024.09.13 09:38 #2

Alain Verleyen #:

Again the same topic...please do some researches before posting or maybe just read the documentation ?

Alain Verleyen #:

Again the same topic...please do some researches before posting or maybe just read the documentation ?

forofx358: