Official DevLess Ruby SDK
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Official Devless Ruby SDK

Official Documentation

Refer to for a detailed documentation.


Add this line to your application's Gemfile:


And then execute:

$ bundle

Or install it yourself as:

$ gem install DV_RUBY_SDK


Setup your DevLess credentials

If you are using rails you may create a new file called devless.rb in the config/initializers folder and set it up with your credentials this way

DVRUBYSDK.token = "52babb518f716ea9014baeb42926b9f9"
DVRUBYSDK.url = ""

For a normal Ruby script just follow this procedure

require "DV_RUBY_SDK"
DVRUBYSDK.token = "52babb518f716ea9014baeb42926b9f9"
DVRUBYSDK.url = ""

Create an instance of the DevLess class to have access to the methods

@devless =

To add data to table

data = {:name => "Tsatsu"}
results = @devless.add_data("service_name", "service_table", data)
puts results

To query data from table

results = @devless.query_data("service_name", "service_table")
puts results

Also you may filter your query with:

size: determine the number of results to return

results = @devless.size(3).query_data("service_name", "service_table")
puts results

offset: Set step in data data to be sent back NB: This is to be used in combination with size

results = @devless.offset(2).size(6).query_data("service_name", "service_table")
puts results

where: Get data based where a key matches a certain value

results = @devless.where("name", "Tsatsu").query_data("service_name", "service_table")
puts results

order_by: Order incoming results in descending order based on a key

results = @devless.orderBy("name").query_data("service_name", "service_table")
puts results

To update data in table

data = {:name => "Edwin"}
results = @devless.where("id", 1).update_data("service_name", "service_table", data)
puts results

To delete data from table

results = @devless.where("id", 1).delete_data("service_name", "service_table")
puts results

Make a call to an Action Class in the DevLess instance

results = @devless.method_call("service_name", "method_name", {})
puts results

Authentication! DevLess comes with authentication baked in. You can access the authentication methods using the DevLess SDK

NB: The five methods below require a user token to be set on the header for successful communicatiion with the DevLess backend😎

Sign In

results = @devless.method_call("devless", "login", {:email => "", :password => "password"})
user_token = JSON.parse(results)['payload']['result']['token']

Options available are 'username', 'email' & 'phone_number'.

Sign Up

results = @devless.method_call("devless", "signUp", {
  :email        => "", 
  :password     => "password", 
  :username     => "ironman",
  :phone_number => "+233245632353",
  :first_name   => "Tony",
  :last_name    => "Stark",
user_token = JSON.parse(results)['payload']['result']['token']

Options available to set the status & role of accounts.

Updating Profile

results = @devless.method_call("devless", "updateProfile", {
  :email        => "", 
  :password     => "dontangryme", 
  :username     => "hulk",
  :phone_number => "+233204432432",
  :first_name   => "Bruce",
  :last_name    => "Banner",
puts results

Retrieving Profile

results = @devless.method_call("devless", "profile", {})
puts results

Log Out

results = @devless.method_call("devless", "logout", {})
puts results

Full Rails Example


Step One

Create a rails app from your terminal and name it anything I will call mine "devless"

$ rails new devless

Navigate into the folder from terminal and run bundle

$ bundle

Step Two

Add The 'DV_RUBY_SDK' gem by going into your gem file and pasting this code

  gem 'DV_RUBY_SDK'

Go back to your console and run bundle install

$ bundle install

Create a controller with an action in my case I will create a controller called devless with an index action. This is how I will do it.

$ rails g controller devless index

Step Three

Navigate to your config folder in the root and look for a folder called initializers. Create a file called devless.rb to configure devless. This the src config/initializers/devless.rb. You will need a token and a url to configure

You will see your {token} and the app {url} in the app section of the devless app you created on hosted on heroku. Click on the app tab and on your left and just scroll down on your right you will see the token copy it.
Url: Just copy the root of the devless app you created and hosted on heroku

In my case my token is "7740b4b2303e32957a3215c344b8c21c" and my url is "" so since i have these can configure.

Go to config/initializers/devless.rb and paste this code (Use your token and url not this)

  DVRUBYSDK.token = "7740b4b2303e32957a3215c344b8c21c"
  DVRUBYSDK.url   = ""

Step Four

Navigate to app/controller and let's write some logic in the controller we created so we can post and query data on our devless backend. Copy and paste this code in the index action of your controller or you can also paste it in any action in your controller. Please read the comments to see what you have to do to customize it well.

  #create an instance of the devless class and assign it to a varibale.
  # I will call mine *@devless* but you could call yours anything.

  @devless =

  #At this stage we can query data, post data, patch and do what ever we want to our table from here
  #Lets first query data
  service_name = "names"
  table_name = "eit_names"
  @query_response = @devless.query_data(service_name, table_name)

  #lets post data to that same table called "eit_names" which require one field ie "name"
  @data_we_want_to_post = {name: "Charles"}
  @post_data_response = devless.add_data(service_name, table_name, data_we_want_to_post)

Step Five

Access your data from the view or wherever you want to use it. So lets go to our view for the controller ie views/devless/index.html.erb in our case and paste this code and that is it!! Easy!

  <%= @query_response %>
  <%= @post_data_response %>

This is It you can do whatever you want with it read more methods in the sdk documentation. It is super easy, fast and efficient. Tell your friends about devless.

If you already have this just download this project from the eamples folder and run bundle install on your local change the config/initializers/devless.rb and start using it. happy coding!!. Welcome to Devless

Full ruby example

step One Run gem install DV_RUBY_SDK
step two create a .rb file and call it anything. I have called mine devless.rb in this instance


We want to do a simple post and query from one of the tables in my service on my devless
panel(the one I am hosting on heroku)
The service name is called "names" and under this service I have a table called eit_names
with one field called "name" which is a string

service name = "names"
table_name = "eit_names"
let's do this!

#require the gem
require "DV_RUBY_SDK"

set it up with your credentials. you will need these two credentials {token}
token can be found in the app tab on your devless panel where you created your services
copy the token.
my token  = "7740b4b2303e32957a3215c344b8c21c"
You will also need the {url} ie the url of the devless app you created
(in my case the one I created and hosted on heroku)
my_app_url = ""
If you have these two you can set up
set it up this way

my_token = "7740b4b2303e32957a3215c344b8c21c"
my_app_url =  ""

DVRUBYSDK.token = my_token
DVRUBYSDK.url   = my_app_url

#create an intance of the devless class and assign it to a varibale.
# I will call mine *devless* you could call yours anything.

devless =

#at this stage we can query data, post data, patch and do what ever we want to our table from here
#lets first query data

service_name = "names"
table_name = "eit_names"

query_response = devless.query_data(service_name, table_name)
puts query_response

#lets post data to that same table called "eit_names" which require one field ie "name"
data_we_want_to_post = {name: "Charles"}
post_data_response = devless.add_data(service_name, table_name, data_we_want_to_post)
puts post_data_response

Run it by pressing command b on your sublime if youre on a mac or run the script in your terminal if otherwise.
You should see data returned without any errors and when you check back in your table
you will see a new entry in your database.
Thats how fast, poowerful; and easy devless has made things
Tell your friends about devless. Thanks


Bug reports and pull requests are welcome on GitHub at This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the Contributor Covenant code of conduct.


The gem is available as open source under the terms of the MIT License.