ESP32 coding error

[Broady2067]

Weird, it compiles perfectly on my system. What version of the IDE are you running? It gives you the version number in the title bar.

In the meantime try this:

Create a brand new sketch name it what you want and copy & paste the below in.

#include <ESPAsyncWebServer.h>
#include <TokenIterator.h>
#include <UrlTokenBindings.h>

void setup() {
// put your setup code here, to run once:
}
void loop() {
// put your main code here, to run repeatedly:
}

UrlTokenBindings parseURL(AsyncWebServerRequest *request, char templatePath[]) {
char urlBuffer[30];
request->url().toCharArray(urlBuffer, 30);
int urlLength = request->url().length();
auto templateIterator = std::make_shared<TokenIterator>(templatePath, strlen(templatePath), '/');
auto pathIterator = std::make_shared<TokenIterator>(urlBuffer, urlLength, '/');
UrlTokenBindings bindings(templateIterator, pathIterator);
return bindings;
}

See whether that compiles for you

2.3.2

 

[Broady2067]

Weird, it compiles perfectly on my system. What version of the IDE are you running? It gives you the version number in the title bar.

In the meantime try this:

Create a brand new sketch name it what you want and copy & paste the below in.

#include <ESPAsyncWebServer.h>
#include <TokenIterator.h>
#include <UrlTokenBindings.h>

void setup() {
// put your setup code here, to run once:
}
void loop() {
// put your main code here, to run repeatedly:
}

UrlTokenBindings parseURL(AsyncWebServerRequest *request, char templatePath[]) {
char urlBuffer[30];
request->url().toCharArray(urlBuffer, 30);
int urlLength = request->url().length();
auto templateIterator = std::make_shared<TokenIterator>(templatePath, strlen(templatePath), '/');
auto pathIterator = std::make_shared<TokenIterator>(urlBuffer, urlLength, '/');
UrlTokenBindings bindings(templateIterator, pathIterator);
return bindings;
}

See whether that compiles for you

Compilation error: exit status 1

 

[robinm]

With the same error as before?

 

[Broady2067]

With the same error as before?

i just ran this in a new sketch

 

[robinm]

Yes but was the error message the same as the one you were getting before?

 

[Broady2067]

Yes but was the error message the same as the one you were getting before?

This is the same error i had when trying to add the:
#include <ESPAsyncWebServer.h>
#include <TokenIterator.h>
#include <UrlTokenBindings.h>

 

[robinm]

Let's take this step by step.

Go to File->Examples and Find PathVariableHandlers from that select Simple which will create a new sketch. If you can't find PathVariableHandlers then the library is not installed. In that case repeat the instructions I gave for downloading and installing the library. If it still doesn't show up in examples let me know.

In the sketch created in the last step go to the board selection dialog (the box next to the compile, upload, debug buttons) select Arduino and then attempt to compile. If it doesn't compile successfully let me know the error message.

If that worked go to the sketch created yesterday with just the code snippet I posted in. In the board selection dialog select ESP32 Dev Module and attempt to compile. If it doesn't compile successfully let me know the error message.

If that worked go to your sketch that we've been working on and ensure you have the right board for your target board selected in the dialog box (If you don't know what your target is other than an ESP32 then ESP32 Dev Module is a good choice. As before if it doesn't compile successfully let me know the error message.

 

[Broady2067]

Let's take this step by step.

Go to File->Examples and Find PathVariableHandlers from that select Simple which will create a new sketch. If you can't find PathVariableHandlers then the library is not installed. In that case repeat the instructions I gave for downloading and installing the library. If it still doesn't show up in examples let me know.

In the sketch created in the last step go to the board selection dialog (the box next to the compile, upload, debug buttons) select Arduino and then attempt to compile. If it doesn't compile successfully let me know the error message.

If that worked go to the sketch created yesterday with just the code snippet I posted in. In the board selection dialog select ESP32 Dev Module and attempt to compile. If it doesn't compile successfully let me know the error message.

If that worked go to your sketch that we've been working on and ensure you have the right board for your target board selected in the dialog box (If you don't know what your target is other than an ESP32 then ESP32 Dev Module is a good choice. As before if it doesn't compile successfully let me know the error message.

I had to select Arduino nano ESP32 and that ran fine.
Second part after i selected ESP32 Dev Module came up with an error.
Compilation error: exit status 1

 

[robinm]

So the example sketch compiled fine with Arduino nano ESP32, this is good it means that the library is working. It's also interesting because that fails on my system. Can you go to Preferences and copy the contents of the additional boards manager URLs and post it. I can then compare against where my board definitions are coming from.

 

[Broady2067]

So the example sketch compiled fine with Arduino nano ESP32, this is good it means that the library is working. It's also interesting because that fails on my system. Can you go to Preferences and copy the contents of the additional boards manager URLs and post it. I can then compare against where my board definitions are coming from.

GitHub - espressif/arduino-esp32: Arduino core for the ESP32

Arduino core for the ESP32. Contribute to espressif/arduino-esp32 development by creating an account on GitHub.

github.com

https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json

 

[robinm]

Sorry for taking a while to respond, had a busy weekend. I've added the board definitions to a clean install of the Arduino IDE, downloaded the required libraries and the code compiles fine for the Arduino nano ESP32 so I'm not sure where your error is coming from. The only thing I did notice was that I went to the Reef-pi / esp-32 github page and had a look at the code there and it's incorrect and will not compile. It has:

TokenIterator templateIterator(templatePath, strlen(templatePath), '/');
TokenIterator pathIterator(urlBuffer, urlLength, '/');

Whereas the code should be:

auto templateIterator = std::make_shared<TokenIterator>(templatePath, strlen(templatePath), '/');
auto pathIterator = std::make_shared<TokenIterator>(urlBuffer, urlLength, '/');

But the code you shared earlier is correct so I'm not sure where you got the correction from but it's right.

The only thing I can suggest is start with a clean install of the IDE, download the required libraries and try again.

 

[Broady2067]

Sorry for taking a while to respond, had a busy weekend. I've added the board definitions to a clean install of the Arduino IDE, downloaded the required libraries and the code compiles fine for the Arduino nano ESP32 so I'm not sure where your error is coming from. The only thing I did notice was that I went to the Reef-pi / esp-32 github page and had a look at the code there and it's incorrect and will not compile. It has:

TokenIterator templateIterator(templatePath, strlen(templatePath), '/');
TokenIterator pathIterator(urlBuffer, urlLength, '/');

Whereas the code should be:

auto templateIterator = std::make_shared<TokenIterator>(templatePath, strlen(templatePath), '/');
auto pathIterator = std::make_shared<TokenIterator>(urlBuffer, urlLength, '/');

But the code you shared earlier is correct so I'm not sure where you got the correction from but it's right.

The only thing I can suggest is start with a clean install of the IDE, download the required libraries and try again.

Thanks Robin. i have done fresh install and just adding the relevant libraries.

 

[Broady2067]

Thanks Robin. i have done fresh install and just adding the relevant libraries.

Still not having any joy.

 

[robinm]

dang.. What is the error message you are getting and which Path Variable Handler library did you install? The one I found?

 

[Broady2067]

dang.. What is the error message you are getting and which Path Variable Handler library did you install? The one I found?

yes the same software.