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How to display environment variables as a group in Rails
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I am using Rails 5.2 application. I want to display the Environment variables as a group in the endpoint.
env_controller.rb
class EnvController < ApplicationController
def index
render json: ENV.to_h
end
end
When I load http://localhost:3000/env, I see the following result
"XDG_VTNR": "7",
"MANPATH": "/home/ubuntu/.nvm/versions/node/v4.6.0/share/man:/home/ubuntu/.rvm/rubies/ruby-2.6.2/share/man:/home/ubuntu/.rvm/man:/usr/lib/jvm/java-8-oracle/man:/usr/local/man:/usr/local/share/man:/usr/share/man",
"S3_SOURCE_PATH": "dev/source",
"DB_ENV_USER": "postgres",
"XDG_SESSION_ID": "c2",
"rvm_bin_path": "/home/ubuntu/.rvm/bin",
"S3_DESTINATION_PATH": "dev/destination",
"SESSION": "ubuntu",
"DB_PORT_5432_TCP_ADDR": "localhost",
"S3_REGION": "us-east-1"
I want to group the environment variables as follows. My expected result is as follows
"S3":
"S3_SOURCE_PATH": "reports/source",
"S3_DESTINATION_PATH": "reports/destination",
"S3_REGION": "us-east-1"
,
"DB":
"DB_ENV_USER": "postgres",
"DB_PORT_5432_TCP_ADDR": "localhost"
,
"Others":
"XDG_VTNR": "7",
"MANPATH": "/home/ubuntu/.nvm/versions/node/v4.6.0/share/man:/home/ubuntu/.rvm/rubies/ruby-2.6.2/share/man:/home/ubuntu/.rvm/man:/usr/lib/jvm/java-8-oracle/man:/usr/local/man:/usr/local/share/man:/usr/share/man",
"XDG_SESSION_ID": "c2",
"rvm_bin_path": "/home/ubuntu/.rvm/bin",
"SESSION": "ubuntu"
I definitely need "S3" and "DB" to be grouped. There are more variables in my application should be grouped like this. Above are the samples.
How can I display it as the above?
ruby-on-rails ruby environment-variables
edited Mar 26 at 8:44
aridlehoover
1,82916 silver badges15 bronze badges
asked Mar 26 at 6:34
GaletGalet
1,4086 gold badges39 silver badges89 bronze badges
|
show 3 more comments
I am using Rails 5.2 application. I want to display the Environment variables as a group in the endpoint.
env_controller.rb
class EnvController < ApplicationController
def index
render json: ENV.to_h
end
end
When I load http://localhost:3000/env, I see the following result
"XDG_VTNR": "7",
"MANPATH": "/home/ubuntu/.nvm/versions/node/v4.6.0/share/man:/home/ubuntu/.rvm/rubies/ruby-2.6.2/share/man:/home/ubuntu/.rvm/man:/usr/lib/jvm/java-8-oracle/man:/usr/local/man:/usr/local/share/man:/usr/share/man",
"S3_SOURCE_PATH": "dev/source",
"DB_ENV_USER": "postgres",
"XDG_SESSION_ID": "c2",
"rvm_bin_path": "/home/ubuntu/.rvm/bin",
"S3_DESTINATION_PATH": "dev/destination",
"SESSION": "ubuntu",
"DB_PORT_5432_TCP_ADDR": "localhost",
"S3_REGION": "us-east-1"
I want to group the environment variables as follows. My expected result is as follows
"S3":
"S3_SOURCE_PATH": "reports/source",
"S3_DESTINATION_PATH": "reports/destination",
"S3_REGION": "us-east-1"
,
"DB":
"DB_ENV_USER": "postgres",
"DB_PORT_5432_TCP_ADDR": "localhost"
,
"Others":
"XDG_VTNR": "7",
"MANPATH": "/home/ubuntu/.nvm/versions/node/v4.6.0/share/man:/home/ubuntu/.rvm/rubies/ruby-2.6.2/share/man:/home/ubuntu/.rvm/man:/usr/lib/jvm/java-8-oracle/man:/usr/local/man:/usr/local/share/man:/usr/share/man",
"XDG_SESSION_ID": "c2",
"rvm_bin_path": "/home/ubuntu/.rvm/bin",
"SESSION": "ubuntu"
I definitely need "S3" and "DB" to be grouped. There are more variables in my application should be grouped like this. Above are the samples.
How can I display it as the above?
ruby-on-rails ruby environment-variables
edited Mar 26 at 8:44
aridlehoover
1,82916 silver badges15 bronze badges
asked Mar 26 at 6:34
GaletGalet
1,4086 gold badges39 silver badges89 bronze badges
ENV is an enumerable. Which means you can usegroup_by,reduceand all other methods of Enumerable.
– Sergio Tulentsev
Mar 26 at 7:33
@SergioTulentsev Is there any example? How can I use for my scenario?
– Galet
Mar 26 at 7:35
Yes, there are examples (of grouping) in the docs (look up Enumerable#group_by). I assume if you were provided with already grouped data, you'd have no problem displaying it.
– Sergio Tulentsev
Mar 26 at 7:36
Then how can I provide grouped data to ENV?
– Galet
Mar 26 at 7:39
You don't. You take data from ENV and convert/transform it into a grouped data structure.
– Sergio Tulentsev
Mar 26 at 7:40
|
show 3 more comments
I am using Rails 5.2 application. I want to display the Environment variables as a group in the endpoint.
env_controller.rb
class EnvController < ApplicationController
def index
render json: ENV.to_h
end
end
When I load http://localhost:3000/env, I see the following result
"XDG_VTNR": "7",
"MANPATH": "/home/ubuntu/.nvm/versions/node/v4.6.0/share/man:/home/ubuntu/.rvm/rubies/ruby-2.6.2/share/man:/home/ubuntu/.rvm/man:/usr/lib/jvm/java-8-oracle/man:/usr/local/man:/usr/local/share/man:/usr/share/man",
"S3_SOURCE_PATH": "dev/source",
"DB_ENV_USER": "postgres",
"XDG_SESSION_ID": "c2",
"rvm_bin_path": "/home/ubuntu/.rvm/bin",
"S3_DESTINATION_PATH": "dev/destination",
"SESSION": "ubuntu",
"DB_PORT_5432_TCP_ADDR": "localhost",
"S3_REGION": "us-east-1"
I want to group the environment variables as follows. My expected result is as follows
"S3":
"S3_SOURCE_PATH": "reports/source",
"S3_DESTINATION_PATH": "reports/destination",
"S3_REGION": "us-east-1"
,
"DB":
"DB_ENV_USER": "postgres",
"DB_PORT_5432_TCP_ADDR": "localhost"
,
"Others":
"XDG_VTNR": "7",
"MANPATH": "/home/ubuntu/.nvm/versions/node/v4.6.0/share/man:/home/ubuntu/.rvm/rubies/ruby-2.6.2/share/man:/home/ubuntu/.rvm/man:/usr/lib/jvm/java-8-oracle/man:/usr/local/man:/usr/local/share/man:/usr/share/man",
"XDG_SESSION_ID": "c2",
"rvm_bin_path": "/home/ubuntu/.rvm/bin",
"SESSION": "ubuntu"
I definitely need "S3" and "DB" to be grouped. There are more variables in my application should be grouped like this. Above are the samples.
How can I display it as the above?
ruby-on-rails ruby environment-variables
edited Mar 26 at 8:44
aridlehoover
1,82916 silver badges15 bronze badges
asked Mar 26 at 6:34
GaletGalet
1,4086 gold badges39 silver badges89 bronze badges
I am using Rails 5.2 application. I want to display the Environment variables as a group in the endpoint.
env_controller.rb
class EnvController < ApplicationController
def index
render json: ENV.to_h
end
end
When I load http://localhost:3000/env, I see the following result
"XDG_VTNR": "7",
"MANPATH": "/home/ubuntu/.nvm/versions/node/v4.6.0/share/man:/home/ubuntu/.rvm/rubies/ruby-2.6.2/share/man:/home/ubuntu/.rvm/man:/usr/lib/jvm/java-8-oracle/man:/usr/local/man:/usr/local/share/man:/usr/share/man",
"S3_SOURCE_PATH": "dev/source",
"DB_ENV_USER": "postgres",
"XDG_SESSION_ID": "c2",
"rvm_bin_path": "/home/ubuntu/.rvm/bin",
"S3_DESTINATION_PATH": "dev/destination",
"SESSION": "ubuntu",
"DB_PORT_5432_TCP_ADDR": "localhost",
"S3_REGION": "us-east-1"
I want to group the environment variables as follows. My expected result is as follows
"S3":
"S3_SOURCE_PATH": "reports/source",
"S3_DESTINATION_PATH": "reports/destination",
"S3_REGION": "us-east-1"
,
"DB":
"DB_ENV_USER": "postgres",
"DB_PORT_5432_TCP_ADDR": "localhost"
,
"Others":
"XDG_VTNR": "7",
"MANPATH": "/home/ubuntu/.nvm/versions/node/v4.6.0/share/man:/home/ubuntu/.rvm/rubies/ruby-2.6.2/share/man:/home/ubuntu/.rvm/man:/usr/lib/jvm/java-8-oracle/man:/usr/local/man:/usr/local/share/man:/usr/share/man",
"XDG_SESSION_ID": "c2",
"rvm_bin_path": "/home/ubuntu/.rvm/bin",
"SESSION": "ubuntu"
I definitely need "S3" and "DB" to be grouped. There are more variables in my application should be grouped like this. Above are the samples.
How can I display it as the above?
ruby-on-rails ruby environment-variables
ruby-on-rails ruby environment-variables
edited Mar 26 at 8:44
aridlehoover
1,82916 silver badges15 bronze badges
asked Mar 26 at 6:34
GaletGalet
1,4086 gold badges39 silver badges89 bronze badges
edited Mar 26 at 8:44
aridlehoover
1,82916 silver badges15 bronze badges
asked Mar 26 at 6:34
GaletGalet
1,4086 gold badges39 silver badges89 bronze badges
edited Mar 26 at 8:44
aridlehoover
1,82916 silver badges15 bronze badges
edited Mar 26 at 8:44
aridlehoover
1,82916 silver badges15 bronze badges
edited Mar 26 at 8:44
aridlehoover
1,82916 silver badges15 bronze badges
1,82916 silver badges15 bronze badges
asked Mar 26 at 6:34
GaletGalet
1,4086 gold badges39 silver badges89 bronze badges
asked Mar 26 at 6:34
GaletGalet
1,4086 gold badges39 silver badges89 bronze badges
asked Mar 26 at 6:34
GaletGalet
1,4086 gold badges39 silver badges89 bronze badges
1,4086 gold badges39 silver badges89 bronze badges
ENV is an enumerable. Which means you can usegroup_by,reduceand all other methods of Enumerable.
– Sergio Tulentsev
Mar 26 at 7:33
@SergioTulentsev Is there any example? How can I use for my scenario?
– Galet
Mar 26 at 7:35
Yes, there are examples (of grouping) in the docs (look up Enumerable#group_by). I assume if you were provided with already grouped data, you'd have no problem displaying it.
– Sergio Tulentsev
Mar 26 at 7:36
Then how can I provide grouped data to ENV?
– Galet
Mar 26 at 7:39
You don't. You take data from ENV and convert/transform it into a grouped data structure.
– Sergio Tulentsev
Mar 26 at 7:40
|
show 3 more comments
ENV is an enumerable. Which means you can usegroup_by,reduceand all other methods of Enumerable.
– Sergio Tulentsev
Mar 26 at 7:33
@SergioTulentsev Is there any example? How can I use for my scenario?
– Galet
Mar 26 at 7:35
Yes, there are examples (of grouping) in the docs (look up Enumerable#group_by). I assume if you were provided with already grouped data, you'd have no problem displaying it.
– Sergio Tulentsev
Mar 26 at 7:36
Then how can I provide grouped data to ENV?
– Galet
Mar 26 at 7:39
You don't. You take data from ENV and convert/transform it into a grouped data structure.
– Sergio Tulentsev
Mar 26 at 7:40
ENV is an enumerable. Which means you can use
group_by, reduce and all other methods of Enumerable.– Sergio Tulentsev
Mar 26 at 7:33
ENV is an enumerable. Which means you can use
group_by, reduce and all other methods of Enumerable.– Sergio Tulentsev
Mar 26 at 7:33
@SergioTulentsev Is there any example? How can I use for my scenario?
– Galet
Mar 26 at 7:35
@SergioTulentsev Is there any example? How can I use for my scenario?
– Galet
Mar 26 at 7:35
Yes, there are examples (of grouping) in the docs (look up Enumerable#group_by). I assume if you were provided with already grouped data, you'd have no problem displaying it.
– Sergio Tulentsev
Mar 26 at 7:36
Yes, there are examples (of grouping) in the docs (look up Enumerable#group_by). I assume if you were provided with already grouped data, you'd have no problem displaying it.
– Sergio Tulentsev
Mar 26 at 7:36
Then how can I provide grouped data to ENV?
– Galet
Mar 26 at 7:39
Then how can I provide grouped data to ENV?
– Galet
Mar 26 at 7:39
You don't. You take data from ENV and convert/transform it into a grouped data structure.
– Sergio Tulentsev
Mar 26 at 7:40
You don't. You take data from ENV and convert/transform it into a grouped data structure.
– Sergio Tulentsev
Mar 26 at 7:40
|
show 3 more comments
1 Answer
1
active
oldest
votes
I think what you want is a custom serializer. Something similar to this:
class EnvSerializer
def as_json
S3: env_select('S3'),
DB: env_select('DB'),
Other: env_reject('S3', 'DB')
end
private
def env_select(prefix)
ENV.select
end
def env_reject(*prefixes)
ENV.reject
end
end
Which would look like this in the controller:
class EnvController < ApplicationController
def index
render json: EnvSerializer.new.as_json
end
end
answered Mar 26 at 8:15
aridlehooveraridlehoover
1,82916 silver badges15 bronze badges
Oh nice, since whenstart_with?is variadic?
– Sergio Tulentsev
Mar 26 at 8:27
@SergioTulentsev For all I can tell, since at least 1.9.1; That's as far as I went back.
– Frederik Spang
Mar 26 at 8:32
3
@FrederikSpang: you live, you learn. This could have saved me a few loops in the past :)
– Sergio Tulentsev
Mar 26 at 8:35
@SergioTulentsev Know the feeling!
– Frederik Spang
Mar 26 at 8:35
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
I think what you want is a custom serializer. Something similar to this:
class EnvSerializer
def as_json
S3: env_select('S3'),
DB: env_select('DB'),
Other: env_reject('S3', 'DB')
end
private
def env_select(prefix)
ENV.select
end
def env_reject(*prefixes)
ENV.reject
end
end
Which would look like this in the controller:
class EnvController < ApplicationController
def index
render json: EnvSerializer.new.as_json
end
end
answered Mar 26 at 8:15
aridlehooveraridlehoover
1,82916 silver badges15 bronze badges
Oh nice, since whenstart_with?is variadic?
– Sergio Tulentsev
Mar 26 at 8:27
@SergioTulentsev For all I can tell, since at least 1.9.1; That's as far as I went back.
– Frederik Spang
Mar 26 at 8:32
3
@FrederikSpang: you live, you learn. This could have saved me a few loops in the past :)
– Sergio Tulentsev
Mar 26 at 8:35
@SergioTulentsev Know the feeling!
– Frederik Spang
Mar 26 at 8:35
add a comment |
I think what you want is a custom serializer. Something similar to this:
class EnvSerializer
def as_json
S3: env_select('S3'),
DB: env_select('DB'),
Other: env_reject('S3', 'DB')
end
private
def env_select(prefix)
ENV.select
end
def env_reject(*prefixes)
ENV.reject
end
end
Which would look like this in the controller:
class EnvController < ApplicationController
def index
render json: EnvSerializer.new.as_json
end
end
answered Mar 26 at 8:15
aridlehooveraridlehoover
1,82916 silver badges15 bronze badges
Oh nice, since whenstart_with?is variadic?
– Sergio Tulentsev
Mar 26 at 8:27
@SergioTulentsev For all I can tell, since at least 1.9.1; That's as far as I went back.
– Frederik Spang
Mar 26 at 8:32
3
@FrederikSpang: you live, you learn. This could have saved me a few loops in the past :)
– Sergio Tulentsev
Mar 26 at 8:35
@SergioTulentsev Know the feeling!
– Frederik Spang
Mar 26 at 8:35
add a comment |
I think what you want is a custom serializer. Something similar to this:
class EnvSerializer
def as_json
S3: env_select('S3'),
DB: env_select('DB'),
Other: env_reject('S3', 'DB')
end
private
def env_select(prefix)
ENV.select
end
def env_reject(*prefixes)
ENV.reject
end
end
Which would look like this in the controller:
class EnvController < ApplicationController
def index
render json: EnvSerializer.new.as_json
end
end
answered Mar 26 at 8:15
aridlehooveraridlehoover
1,82916 silver badges15 bronze badges
I think what you want is a custom serializer. Something similar to this:
class EnvSerializer
def as_json
S3: env_select('S3'),
DB: env_select('DB'),
Other: env_reject('S3', 'DB')
end
private
def env_select(prefix)
ENV.select
end
def env_reject(*prefixes)
ENV.reject
end
end
Which would look like this in the controller:
class EnvController < ApplicationController
def index
render json: EnvSerializer.new.as_json
end
end
answered Mar 26 at 8:15
aridlehooveraridlehoover
1,82916 silver badges15 bronze badges
answered Mar 26 at 8:15
aridlehooveraridlehoover
1,82916 silver badges15 bronze badges
answered Mar 26 at 8:15
aridlehooveraridlehoover
1,82916 silver badges15 bronze badges
answered Mar 26 at 8:15
aridlehooveraridlehoover
1,82916 silver badges15 bronze badges
1,82916 silver badges15 bronze badges
Oh nice, since whenstart_with?is variadic?
– Sergio Tulentsev
Mar 26 at 8:27
@SergioTulentsev For all I can tell, since at least 1.9.1; That's as far as I went back.
– Frederik Spang
Mar 26 at 8:32
3
@FrederikSpang: you live, you learn. This could have saved me a few loops in the past :)
– Sergio Tulentsev
Mar 26 at 8:35
@SergioTulentsev Know the feeling!
– Frederik Spang
Mar 26 at 8:35
add a comment |
Oh nice, since whenstart_with?is variadic?
– Sergio Tulentsev
Mar 26 at 8:27
@SergioTulentsev For all I can tell, since at least 1.9.1; That's as far as I went back.
– Frederik Spang
Mar 26 at 8:32
3
@FrederikSpang: you live, you learn. This could have saved me a few loops in the past :)
– Sergio Tulentsev
Mar 26 at 8:35
@SergioTulentsev Know the feeling!
– Frederik Spang
Mar 26 at 8:35
Oh nice, since when
start_with? is variadic?– Sergio Tulentsev
Mar 26 at 8:27
Oh nice, since when
start_with? is variadic?– Sergio Tulentsev
Mar 26 at 8:27
@SergioTulentsev For all I can tell, since at least 1.9.1; That's as far as I went back.
– Frederik Spang
Mar 26 at 8:32
@SergioTulentsev For all I can tell, since at least 1.9.1; That's as far as I went back.
– Frederik Spang
Mar 26 at 8:32
3
3
@FrederikSpang: you live, you learn. This could have saved me a few loops in the past :)
– Sergio Tulentsev
Mar 26 at 8:35
@FrederikSpang: you live, you learn. This could have saved me a few loops in the past :)
– Sergio Tulentsev
Mar 26 at 8:35
@SergioTulentsev Know the feeling!
– Frederik Spang
Mar 26 at 8:35
@SergioTulentsev Know the feeling!
– Frederik Spang
Mar 26 at 8:35
add a comment |
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Required, but never shown
ENV is an enumerable. Which means you can use
group_by,reduceand all other methods of Enumerable.– Sergio Tulentsev
Mar 26 at 7:33
@SergioTulentsev Is there any example? How can I use for my scenario?
– Galet
Mar 26 at 7:35
Yes, there are examples (of grouping) in the docs (look up Enumerable#group_by). I assume if you were provided with already grouped data, you'd have no problem displaying it.
– Sergio Tulentsev
Mar 26 at 7:36
Then how can I provide grouped data to ENV?
– Galet
Mar 26 at 7:39
You don't. You take data from ENV and convert/transform it into a grouped data structure.
– Sergio Tulentsev
Mar 26 at 7:40