env_manager

Description:

env manager

Usually in an application it is necessary to have at hand a system to manage global variables (or environment variables) to propagate inside the application. env_manager does just that, it manages your environment variables in a smart way.
How it works #
Your environment variables are stored in a folder called envdir, this folder will contain all of your environment variable files and you can divide them up as you see fit.
Below is an example of a project folder that uses env_manager.
your_project
├───android
│└───...
├───assets
│└───...
├───build
│└───...
│
├───envdir
│├───application.yaml
│├───another_env_file.yaml
│└───example_env_folder
│ └───example_env_file_inside_folder.yaml
│
├───ios
│└───...
├───lib
│└───...
├───test
│└───...
├───.flutter-plugins
├───.flutter-plugins-dependencies
├───.gitattributes
├───.gitignore
├───.metadata
├───.packages
├───analysis_options.yml
├───your_project.iml
├───pubspec.lock
├───pubspec.yaml
└───README.md
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Setup the package in your application #
Add the package in the dependecies section of your pubspec.yaml file.
env_manager: ^0.1.2
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and execute the flutter pub get to fetch the package from pub.dev.
After the fetch, execute the flutter pub run env_manager:make to create the envdir in your project root directory, inside this folder your can create all your environment files (even with different folders).
IMPORTANT: All environment files must use the following format
production:
example_A_variable: "My A variable in production"
example_B_variable: "My B variable in prodution"
...

development:
example_A_variable: "My A variable in development"
example_B_variable: "My B variable in development"
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All variables must be the same for production and development sections.
After this, you need to add the environment files in the assets section inside the pubspec.yaml file.
...
flutter:
assets:
- assets/myexampleimage.png
- assets/anotherexampleimage.jpg
...

#Env Files
- envdir/application.yaml
- envdir/example_folder/new_env_file.yaml
...
...
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Add the code in your application #
In your main class, add the following snippt before the runApp method
...
void main() async {
WidgetsFlutterBinding.ensureInitialized();

await env.locateAndLoad([
env.EnvironmentFileLoader("myEnvName", await rootBundle.loadString("envdir/application.yaml")),
env.EnvironmentFileLoader("myEnvName2", await rootBundle.loadString("envdir/example_folder/new_env_file.yaml")),
..other files to load..
]);

...
}
...
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You can also setup the environment to reply with production variables or with development variables using
env.useProductionEnvironment(true | false);
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IMPORTANT: By default is set to false
or you can call directly the environment using the get method (By default will take the useProductionEnvironment value)
env.get("myEnvName")["variable_name"]
env.get("myEnvName", withProduction: true | false)["variable_name"]
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