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João Fernandes

@0rangeFox

By the way, the variable "_dbClient" is of type: IOThreadStorage<DbClientPtr>

João Fernandes

@0rangeFox

I think I was not very specific to my issue, what I really wanted to know, is regarding the variable "_dbClient", when passing in the "Captures" of the lambdas expressions.

Rafael Bugajewski

@rbugajewski

It’s really hard to say something, because the context is missing.

João Fernandes

@0rangeFox

Yes I get it but I personally also read that and got confused and I can't simplify it any more than that, what I basically meant, if you look there is a "capture" with the following parameter, "_dbClient = *_dbClient" in the last lambda, and I wonder if there is any way to just send "_dbClient" as the first lambda?

praveenpillay

@praveenpillay

For a front end desktop application heavy on real time chart updates from drogon server, what would you guys recommend? Flutter, React Native, Vue or something else? Thank you!

1 reply

An Tao

@an-tao

Yes I get it but I personally also read that and got confused and I can't simplify it any more than that, what I basically meant, if you look there is a "capture" with the following parameter, "_dbClient = *_dbClient" in the last lambda, and I wonder if there is any way to just send "_dbClient" as the first lambda?

Why not just capture this pointer instead of _dbClient

João Fernandes

@0rangeFox

Because I need to fetch the object that is inside of the IOThreadStorage. Or am I forgetting something?

An Tao

@an-tao

This kind of callback nesting can be perfectly solved by coroutine

Alababdiy

@Alababdiy

how to get drogon:orm:Row columns ?

An Tao

@an-tao

use index or iterator

or name

Alababdiy

@Alababdiy

inline json row_to_json(const Row &row){
json r ;

    for (short i = 0; i< row.size();i++)
    {
        cout << "Key" << row.operator[](i).as<string>();
        cout << "Value" << row.operator[](i).as<string>();
        r.emplace(row.operator[](i).as<string>(),row.operator[](i).as<string>());
    }
    return r;
}

use index or iterator

i can't detect columns name

An Tao

@an-tao

why not use row[i]?

you could use row[i].name() to get the column name

Alababdiy

@Alababdiy

thanks An Tao

why not use row[i]?

Aayush-2492

@Aayush-2492

Something strange is happening. If I register a controller from main.cc it works fine but if a define a controller in the controller folder and go to that path it says 404 not found.

An Tao

@an-tao

did you re-configure your project with cmake after adding the controller?

Aayush-2492

@Aayush-2492

Do i need to? I created the controller by drogon_ctl command.

An Tao

@an-tao

yes, you need. drogon_ctl just create the files.

Aayush-2492

@Aayush-2492

What line do I need to add to the CMake file then?

An Tao

@an-tao

You don't need add new lines, just run cmake ..

Aayush-2492

@Aayush-2492

OK that but I did run cmake .. and make in the terminal

An Tao

@an-tao

does it work?

Aayush-2492

@Aayush-2492

No.
I meant before I asked the question, I had run CMake.

An Tao

@an-tao

after you added new controllers?

please paste your routing macros here

Aayush-2492

@Aayush-2492

METHOD_LIST_BEGIN

METHOD_ADD(login::loginHandler, "/login", Post);
METHOD_ADD(login::loginCheckHandler, "/logincheck", Post);

METHOD_LIST_END

Image also if it helps ^

An Tao

@an-tao

did you add the spacename and class name to the path when accessing the web?

or you should use the ADD_METHOD_TO macro to avoid that.

Aayush-2492

@Aayush-2492

Thanks

I will try it

Is there an function that lets WS server send messages to all clients(like emit in JS)?

Or I will have to store the WebSocketClientPtr for each object in a data structure

An Tao

@an-tao

please refer to the PubSubService template, if you search it in the project, you'll find an example of chat room.

Aayush-2492

@Aayush-2492

Thanks @an-tao

praveenpillay

@praveenpillay

Thank you!

Martin Chang

@marty1885

@0rangeFox I tried to get coroutines working on MSYS. But ended up either with libc++/stdc++ clash or MSYS not properly supporting clang.

You'll have to wait for GCC 11 landing on MSYS, use visual studio or use Linux/WSL

Aayush-2492

@Aayush-2492

How do I set the request parameter for chat room name for using PubSubService link

An Tao

@an-tao

you could put it on URL, /path?chat_room=test

Aayush-2492

@Aayush-2492

Whats the error in this line used inside controller:
SessionPtr s = std::make_shared<Session>(req->session());

João Fernandes

@0rangeFox

@0rangeFox I tried to get coroutines working on MSYS. But ended up either with libc++/stdc++ clash or MSYS not properly supporting clang.
You'll have to wait for GCC 11 landing on MSYS, use visual studio or use Linux/WSL

I do not know how to thank you for your loss of time, but thank you very much for your help, and I will look forward to it.

João Fernandes

@0rangeFox

Someone can explain me a little about regex on endpoints? Because I'm trying to make start from one string, for example "data" with path and tell me doesn't exists that endpoint.
Example: /v1/user/(?=data)

Martin Chang

@marty1885

What kind of API are you trying to create?

João Fernandes

@0rangeFox

RESTful API.

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