Sample User Authentication App (Golang)

Introduction

🪄 Dive into the world of User Authentication apps and see how seamlessly Keploy integrates with Gin and Redis. Buckle up, it's gonna be a fun ride! 🎢

🛠️ Platform-Specific Requirements for Keploy

Below is a table summarizing the tools needed for both native and Docker installations of Keploy on MacOS, Windows, and Linux:

Operating System	Without Docker	Docker Installation	Prerequisites
MacOS			Docker Desktop version must be 4.25.2 or above
Windows			- Use WSL `wsl --install` - Windows 10 version 2004 and higher (Build 19041 and higher) or Windows 11
Linux			Linux kernel 5.15 or higher

On MacOS and Windows, additional tools are required for Keploy due to the lack of native eBPF support.

Quick Installation

Let's get started by setting up the Keploy alias with this command:

 curl --silent -O -L https://keploy.io/install.sh && source install.sh

You should see something like this:

       ▓██▓▄
    ▓▓▓▓██▓█▓▄
     ████████▓▒
          ▀▓▓███▄      ▄▄   ▄               ▌
         ▄▌▌▓▓████▄    ██ ▓█▀  ▄▌▀▄  ▓▓▌▄   ▓█  ▄▌▓▓▌▄ ▌▌   ▓
       ▓█████████▌▓▓   ██▓█▄  ▓█▄▓▓ ▐█▌  ██ ▓█  █▌  ██  █▌ █▓
      ▓▓▓▓▀▀▀▀▓▓▓▓▓▓▌  ██  █▓  ▓▌▄▄ ▐█▓▄▓█▀ █▓█ ▀█▄▄█▀   █▓█
       ▓▌                           ▐█▌                   █▌
        ▓

Keploy CLI

Available Commands:
  example           Example to record and test via keploy
  config --generate generate the keploy configuration file
  record            record the keploy testcases from the API calls
  test              run the recorded testcases and execute assertions
  update            Update Keploy

Flags:
      --debug     Run in debug mode
  -h, --help      help for keploy
  -v, --version   version for keploy

Use "keploy [command] --help" for more information about a command.

🎉 Wohoo! You are all set to use Keploy.

Other Installation Methods

Downloading and running Keploy in Docker

On macOS

Open up a terminal window.
Create a bridge network in Docker using the following docker network create command:

docker network create keploy-network

Run the following command to start the Keploy container:

alias keploy="docker run --name keploy-v2 -p 16789:16789 --network keploy-network --privileged --pid=host -v $(pwd):$(pwd) -w $(pwd) -v /sys/fs/cgroup:/sys/fs/cgroup -v /sys/kernel/debug:/sys/kernel/debug -v /sys/fs/bpf:/sys/fs/bpf -v /var/run/docker.sock:/var/run/docker.sock --rm ghcr.io/keploy/keploy"

Downloading and running Keploy in Native

Prequisites:

Linux Kernel version 5.15 or higher
Run uname -a to verify the system architecture.
In case of Windows, use WSL with Ubuntu 20.04 LTS or higher.

On WSL/Linux AMD

Open the terminal Session.
Run the following command to download and install Keploy:

curl --silent --location "https://github.com/keploy/keploy/releases/latest/download/keploy_linux_amd64.tar.gz" | tar xz --overwrite -C /tmp
sudo mkdir -p /usr/local/bin && sudo mv /tmp/keploy /usr/local/bin/keploy

On WSL/Linux ARM

Open the terminal Session
Run the following command to download and install Keploy:

curl --silent --location "https://github.com/keploy/keploy/releases/latest/download/keploy_linux_arm64.tar.gz" | tar xz --overwrite -C /tmp
sudo mkdir -p /usr/local/bin && sudo mv /tmp/keploy /usr/local/bin/keploy

Note: Keploy is not supported on MacOS natively.

With Arkade

Installing Arkade

# Note: you can also run without `sudo` and move the binary yourself
curl -sLS https://get.arkade.dev | sudo sh

arkade --help
ark --help  # a handy alias

# Windows users with Git Bash
curl -sLS https://get.arkade.dev | sh

Install Keploy

arkade get keploy

Or you can also download specific version of Keploy using the following command:

arkade get keploy@2.2.0-alpha23

Get Started! 🎬

Clone a sample user authentication app 🧪

git clone https://github.com/keploy/samples-go.git && cd samples-go/gin-redis
go mod download

Installation 📥

There are 2 ways you can run this sample application.

Using Docker compose : running application as well as Postgres on Docker container
Using Docker container for Postgres and running application locally

Using Docker Compose 🐳

We will be using Docker compose to run the application as well as Postgres on Docker container.

Lights, Camera, Record! 🎥

Setup the Redis Database 📦

Start the Redis instance using the docker-compose file-

docker compose up redis

Now, we will create the docker image of our application:-

docker build -t gin-app:1.0 .

Capture the test-cases-

keploy record -c "docker run -p 3001:3001 --name RediApp --network <networkName> --name ginRedisApp gin-app:1.0"

🔥Make some API calls. Postman, Hoppscotch or even curl - take your pick!

Let's make URLs short and sweet:

1. Request OTP

curl --location 'localhost:3001/api/getVerificationCode?email=something@gmail.com&username=shivamsourav'

This will return the OTP response:

{
  "status": "true",
  "message": "OTP Generated successfully",
  "otp": "5486"
}

2. Verify OTP

curl --location 'localhost:3001/api/verifyCode' \
--header 'Content-Type: application/json' \
--data-raw '{
    "otp":2121,
    "email":"something@gmail.com"
}'

This will return the OTP verification response:

{
  "status": "true",
  "token": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJ2YWx1ZSI6ImdtYWlsLmNvbSIsImV4cCI6MTY5ODc1ODIyNn0.eVrNACUY93g-5tu8fxb2BEOs1wn2iCe8wVpUYU6OLSE",
  "username": "shivamsourav",
  "message": "OTP authenticated successfully"
}

🎉 Woohoo! With a simple API call, you've crafted a test case with a mock! Dive into the Keploy directory and feast your eyes on the newly minted test-1.yml and mocks.yml

version: api.keploy.io/v1beta2
kind: Http
name: test-1
spec:
  metadata: {}
  req:
    method: GET
    proto_major: 1
    proto_minor: 1
    url: http://localhost:3001/api/getVerificationCode?email=something@gmail.com&username=shivamsourav
    url_params:
      email: something@gmail.com
      username: shivamsourav
    header:
      Accept: "*/*"
      Accept-Encoding: gzip, deflate, br
      Connection: keep-alive
      Host: localhost:3001
      Postman-Token: 2db91281-a5bf-49e0-be0d-c6293c833910
      User-Agent: PostmanRuntime/7.33.0
    body: ""
    body_type: ""
  resp:
    status_code: 200
    header:
      Content-Length: "69"
      Content-Type: application/json; charset=utf-8
      Date: Tue, 31 Oct 2023 09:17:00 GMT
    body: '{"status":"true","message":"OTP Generated successfully","otp":"5486"}'
    body_type: ""
    status_message: ""
    proto_major: 0
    proto_minor: 0
  objects: []
  assertions:
    noise:
      - body.otp
      - header.Date
  created: 1698743822
curl: |
  curl --request GET \
  --url http://localhost:3001/api/getVerificationCode?email=something@gmail.com&username=shivamsourav \
  --header 'Host: localhost:3001' \
  --header 'Accept-Encoding: gzip, deflate, br' \
  --header 'Connection: keep-alive' \
  --header 'User-Agent: PostmanRuntime/7.33.0' \
  --header 'Accept: */*' \
  --header 'Postman-Token: 2db91281-a5bf-49e0-be0d-c6293c833910' \

This is how mocks.yml generated would look like:-

  version: api.keploy.io/v1beta2
  kind: Generic
  name: mocks
  spec:
      metadata: {}
      genericrequests:
          - origin: client
          message:
              - type: string
              data: "*1\r\n$4\r\nping\r\n"
      genericresponses:
          - origin: server
          message:
              - type: string
              data: "+PONG\r\n"
  ---
  version: api.keploy.io/v1beta2
  kind: Generic
  name: mocks
  spec:
      metadata: {}
      genericrequests:
          - origin: client
          message:
              - type: string
              data: "*5\r\n$3\r\nset\r\n$19\r\nsomething@gmail.com\r\n$38\r\n{\"otp\":5486,\"username\":\"shivamsourav\"}\r\n$2\r\nex\r\n$5\r\n14400\r\n"
      genericresponses:
          - origin: server
          message:
              - type: string
              data: "+OK\r\n"
  ---
  version: api.keploy.io/v1beta2
  kind: Generic
  name: mocks
  spec:
      metadata: {}
      genericrequests:
          - origin: client
          message:
              - type: string
              data: "*2\r\n$3\r\nget\r\n$19\r\nsomething@gmail.com\r\n"
      genericresponses:
          - origin: server
          message:
              - type: string
              data: "$38\r\n{\"otp\":5486,\"username\":\"shivamsourav\"}\r\n"

Want to see if everything works as expected?

Run Tests

Time to put things to the test 🧪

keploy test -c "sudo docker run -p 3001:3001 --rm --network <networkName> --name ginRedisApp gin-app:1.0" --delay 10

The --delay flag? Oh, that's just giving your app a little breather (in seconds) before the test cases come knocking.

Final thoughts? Dive deeper! Try different API calls, tweak the DB response in the mocks.yml, or fiddle with the request or response in test-x.yml. Run the tests again and see the magic unfold!✨👩‍💻👨‍💻✨

Wrapping it up 🎉

Congrats on the journey so far! You've seen Keploy's power, flexed your coding muscles, and had a bit of fun too! Now, go out there and keep exploring, innovating, and creating! Remember, with the right tools and a sprinkle of fun, anything's possible.😊🚀

Happy coding! ✨👩‍💻👨‍💻✨

**********************************___**********************************

Running App Locally on Linux/WSL 🐧

We'll be running our sample application right on Linux, but just to make things a tad more thrilling, we'll have the database (Redis) chill on Docker. Ready? Let's get the party started!🎉

📼 Roll the Tape - Recording Time!

Start the Redis database using docker-compose:

docker compose up redis

We'll create a binary of our application:

go build -o gin-redis

Ready, set, record! Here's how:

sudo -E PATH=$PATH keploy record -c "./gin-redis"

Alright, magician! With the app alive and kicking, let's weave some test cases. The spell? Making some API calls! Postman, Hoppscotch, or the classic curl - pick your wand.

Generate testcases

To generate testcases we just need to make some API calls.

1. Request OTP

curl --location 'localhost:3001/api/getVerificationCode?email=something@gmail.com&username=shivamsourav'

This will return the OTP response:

{
  "status": "true",
  "message": "OTP Generated successfully",
  "otp": "5486"
}

2. Verify OTP

curl --location 'localhost:3001/api/verifyCode' \
--header 'Content-Type: application/json' \
--data-raw '{
    "otp":2121,
    "email":"something@gmail.com"
}'

This will return the OTP verification response:

{
  "status": "true",
  "token": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJ2YWx1ZSI6ImdtYWlsLmNvbSIsImV4cCI6MTY5ODc1ODIyNn0.eVrNACUY93g-5tu8fxb2BEOs1wn2iCe8wVpUYU6OLSE",
  "username": "shivamsourav",
  "message": "OTP authenticated successfully"
}

Give yourself a pat on the back! With that simple spell, you've conjured up a test case with a mock! Explore the Keploy directory and you'll discover your handiwork in test-1.yml and mocks.yml.

version: api.keploy.io/v1beta2
kind: Http
name: test-1
spec:
  metadata: {}
  req:
    method: GET
    proto_major: 1
    proto_minor: 1
    url: http://localhost:3001/api/getVerificationCode?email=something@gmail.com&username=shivamsourav
    url_params:
      email: something@gmail.com
      username: shivamsourav
    header:
      Accept: "*/*"
      Accept-Encoding: gzip, deflate, br
      Connection: keep-alive
      Host: localhost:3001
      Postman-Token: 2db91281-a5bf-49e0-be0d-c6293c833910
      User-Agent: PostmanRuntime/7.33.0
    body: ""
    body_type: ""
  resp:
    status_code: 200
    header:
      Content-Length: "69"
      Content-Type: application/json; charset=utf-8
      Date: Tue, 31 Oct 2023 09:17:00 GMT
    body: '{"status":"true","message":"OTP Generated successfully","otp":"5486"}'
    body_type: ""
    status_message: ""
    proto_major: 0
    proto_minor: 0
  objects: []
  assertions:
    noise:
      - body.otp
      - header.Date
  created: 1698743822
curl: |
  curl --request GET \
  --url http://localhost:3001/api/getVerificationCode?email=something@gmail.com&username=shivamsourav \
  --header 'Host: localhost:3001' \
  --header 'Accept-Encoding: gzip, deflate, br' \
  --header 'Connection: keep-alive' \
  --header 'User-Agent: PostmanRuntime/7.33.0' \
  --header 'Accept: */*' \
  --header 'Postman-Token: 2db91281-a5bf-49e0-be0d-c6293c833910' \

This is how mocks.yml generated would look like:-

  version: api.keploy.io/v1beta2
  kind: Generic
  name: mocks
  spec:
      metadata: {}
      genericrequests:
          - origin: client
          message:
              - type: string
              data: "*1\r\n$4\r\nping\r\n"
      genericresponses:
          - origin: server
          message:
              - type: string
              data: "+PONG\r\n"
  ---
  version: api.keploy.io/v1beta2
  kind: Generic
  name: mocks
  spec:
      metadata: {}
      genericrequests:
          - origin: client
          message:
              - type: string
              data: "*5\r\n$3\r\nset\r\n$19\r\nsomething@gmail.com\r\n$38\r\n{\"otp\":5486,\"username\":\"shivamsourav\"}\r\n$2\r\nex\r\n$5\r\n14400\r\n"
      genericresponses:
          - origin: server
          message:
              - type: string
              data: "+OK\r\n"
  ---
  version: api.keploy.io/v1beta2
  kind: Generic
  name: mocks
  spec:
      metadata: {}
      genericrequests:
          - origin: client
          message:
              - type: string
              data: "*2\r\n$3\r\nget\r\n$19\r\nsomething@gmail.com\r\n"
      genericresponses:
          - origin: server
          message:
              - type: string
              data: "$38\r\n{\"otp\":5486,\"username\":\"shivamsourav\"}\r\n"

Want to see if everything works as expected?

Run Tests

Time to put things to the test 🧪

sudo -E keploy test -c "./gin-redis" --delay 10

The --delay flag? Oh, that's just giving your app a little breather (in seconds) before the test cases come knocking.

Wrapping it up 🎉

Hope this helps you out, if you still have any questions, reach out to us .

Contact Us

If you have any questions or need help, please feel free to reach out to us at hello@keploy.io or reach out us on or open a discussion on

Introduction​

🛠️ Platform-Specific Requirements for Keploy​

Quick Installation​

Other Installation Methods​

Downloading and running Keploy in Docker​

On macOS​

Downloading and running Keploy in Native​

On WSL/Linux AMD​

On WSL/Linux ARM​

With Arkade​

Get Started! 🎬​

Clone a sample user authentication app 🧪​

Installation 📥​

Using Docker Compose 🐳​

Lights, Camera, Record! 🎥​

Setup the Redis Database 📦​

Capture the test-cases-​

1. Request OTP​

Run Tests​

Wrapping it up 🎉​

Running App Locally on Linux/WSL 🐧​

📼 Roll the Tape - Recording Time!​

Generate testcases​

Run Tests​

Wrapping it up 🎉​

Contact Us​

Introduction

🛠️ Platform-Specific Requirements for Keploy

Quick Installation

Other Installation Methods

Downloading and running Keploy in Docker

On macOS

Downloading and running Keploy in Native

On WSL/Linux AMD

On WSL/Linux ARM

With Arkade

Get Started! 🎬

Clone a sample user authentication app 🧪

Installation 📥

Using Docker Compose 🐳

Lights, Camera, Record! 🎥

Setup the Redis Database 📦

Capture the test-cases-

1. Request OTP

Run Tests

Wrapping it up 🎉

Running App Locally on Linux/WSL 🐧

📼 Roll the Tape - Recording Time!

Generate testcases

Run Tests

Wrapping it up 🎉

Contact Us