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go-fasthttp-postgres.md

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id samples-fasthttp
title Sample CRUD App (Golang)
sidebar_label FastHttp + Postgres
description The following sample app showcases how to use FastHttp framework and the Keploy Platform.
tags
go
quickstart
samples
examples
tutorial
postgres
fasthttp
keyword
FastHttp Framework
Postgres Mock
Golang
API Test generator
Auto Testcase generation

import InstallReminder from '@site/src/components/InstallReminder'; import SectionDivider from '@site/src/components/SectionDivider'; import ProductTier from '@site/src/components/ProductTier';

Running App Locally on Linux/WSL 🐧

This guide walks you through generating tests and DB mocks for a sample CRUD app built with FastHttp and Postgres using Keploy.

Clone the sample CRUD application 🧪

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

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

Point the app to local Postgres

Update the Postgres URL to localhost:5432 in app.go (mentioned at line 21 in the sample).

Start Postgres

docker compose up postgres

Record with Keploy while running the app

go build -o app

Lights, Camera, Record! 🎥

keploy record -c "./app"

Keep an eye out for the -c flag! It's the command charm to run the app. Whether you're using go run main.go or the binary path like ./app, it's your call.

If you're seeing logs that resemble the ones below, you're on the right track:

<img src="https://keploy-devrel.s3.us-west-2.amazonaws.com/Keploy_record_fastapi_golang.png" alt="Sample Keploy Record" width="100%" style={{ borderRadius: '5px' }} />

Alright! With the app alive and kicking, let's weave some test cases. Making some API calls! Postman, Hoppscotch,

or even the classic curl - take your pick!

Time to create some users and books:

Generate traffic

Post Requests

curl -X POST -H "Content-Type: application/json" -d '{"name":"Author Name"}' http://localhost:8080/authors

curl -X POST -H "Content-Type: application/json" -d '{"title":"Book Title","author_id":1}' http://localhost:8080/books

Get Request

curl -i http://localhost:8080/books

Look at you go! With a few simple API calls, you've crafted test cases with mocks! Peek into the Keploy directory and behold the freshly minted test-1.yml and mocks.yml.

🏃‍♀️ Run the Tests!

Time to put it all to the test:

keploy test -c "./app" --delay 5

That --delay flag? Just a little pause (in seconds) to let your app catch its breath before the test cases start rolling in.

When all is said and done, your test results should look a little something like this:

<img src="https://keploy-devrel.s3.us-west-2.amazonaws.com/keploy_replay_test_fastapi_golang.png" alt="Sample Keploy Replay" width="100%" style={{ borderRadius: '5px' }} />

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! ✨👩‍💻👨‍💻✨