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Merged
Achanandhi-M merged 9 commits into from
Jan 12, 2026
Merged

feat: added Dockerfile and docker-compose support #192

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f6ab8f5
feat(fasthttp-postgres): add Dockerfile and docker-compose support
Srinu346 Dec 22, 2025
ad9599e
fix/updated-readme
Srinu346 Dec 24, 2025
2e42b39
fix/readme-update
Srinu346 Dec 27, 2025
040b76a
fix/readme-update
Srinu346 Dec 27, 2025
5d01bd0
fix/readme_update
Srinu346 Dec 30, 2025
f9cdd8a
fix/lintissue-readmeupdate
Srinu346 Jan 6, 2026
1b5ba24
chore\added .env instructions in readme
Srinu346 Jan 6, 2026
2ef7011
fix/readmeupdate
Srinu346 Jan 12, 2026
3b7637b
fix/readmeupdate
Srinu346 Jan 12, 2026
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21 changes: 21 additions & 0 deletions fasthttp-postgres/Dockerfile
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@@ -0,0 +1,21 @@
# ---------- Build stage ----------
FROM golang:1.22-alpine AS builder

WORKDIR /app

COPY go.mod go.sum ./
RUN go mod download

COPY . .
RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -o main main.go

# ---------- Run stage ----------
FROM alpine:3.19

WORKDIR /root/

COPY --from=builder /app/main .
COPY --from=builder /app/migrations ./migrations

EXPOSE 8080
CMD ["./main"]
82 changes: 69 additions & 13 deletions fasthttp-postgres/README.md
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Expand Up @@ -6,7 +6,6 @@ A sample application that get, create, update, and delete the data of a user in
```
git clone https://github.com/keploy/samples-go && cd fasthttp-postgres

go mod download
```

## Installation
Expand All @@ -19,50 +18,107 @@ Keploy can be used on Linux, Windows and MacOS through [Docker](https://docs.doc

> Note: To run Keploy on MacOS through [Docker](https://docs.docker.com/desktop/release-notes/#4252) the version must be ```4.25.2``` or above.

### Let's start the MongoDB Instance
Using the docker-compose file we will start our mongodb instance:-
### Option 1: Run with Docker

#### Capture testcases:
```shell
keploy record -c "docker compose up" --container-name=fasthttp_app
```


##### To genereate testcases we just need to make some API calls. You can use [Postman](https://www.postman.com/), [Hoppscotch](https://hoppscotch.io/), or simply `curl`: -

###### 1. Post Requests
```shell
curl -X POST -H "Content-Type: application/json" -d '{"name":"Author Name"}' http://localhost:8080/authors
```

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

###### 2. Get Requests
```bash
sudo docker-compose up -d postgres
curl -i http://localhost:8080/books
```

Now, we will create the docker image of our application:-
![Keploy Testcases](./img/testcases.png)

#### Run captured tests:

Now that we have our testcase captured, run the test file.


```shell
keploy test -c "docker compose up" --container-name=fasthttp_app --delay 10
```

![alt text](./img/testrun.png)


### Option 2: Run Without Docker

> Note: This application requires the following database environment variables
> to be set in order to run correctly.
>
> Create a .env file in this directory with the following values:
>
> ```env
> DB_HOST=localhost
> DB_PORT=5432
> DB_USER=postgres
> DB_PASSWORD=password
> DB_NAME=db
> ```

#### Start the Postgres container:
```bash
go build -cover
docker compose up -d postgres
```

### Capture the Testcases
### Build the Application
```bash
go build -o app
```

#### Capture testcases:
```shell
keploy record -c "./app"
```

To genereate testcases we just need to make some API calls. You can use [Postman](https://www.postman.com/), [Hoppscotch](https://hoppscotch.io/), or simply `curl`: -
> Note: The server would be running on http://localhost:8080


1. Post Requests
##### To genereate testcases we just need to make some API calls. You can use [Postman](https://www.postman.com/), [Hoppscotch](https://hoppscotch.io/), or simply `curl`: -

###### 1. Post Requests
```shell
curl -X POST -H "Content-Type: application/json" -d '{"name":"Author Name"}' http://localhost:8080/authors

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

2. Get Requests
###### 2. Get Requests
```bash
curl -i http://localhost:8080/books
```


![Keploy Testcases](./img/testcases.png)

### Run captured tests
#### Run captured tests

Now that we have our testcase captured, run the test file.

```shell
keploy test -c "./app" --goCoverage --delay 10
keploy test -c "./app" --delay 10
```

![alt text](./img/testrun.png)


_Voila! Our testcases have passed🥳_ . We can also notice that by capturing just few API calls we got around 88.5% of aggregated coverage with keploy generated testcases

If you like the sample application, Don't forget to star us ✨

39 changes: 27 additions & 12 deletions fasthttp-postgres/docker-compose.yaml
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@@ -1,14 +1,29 @@
version: '3.7'
services:
postgres:
image: postgres:10.5
container_name: postgresDB
restart: always
environment:
- POSTGRES_DB=db
- POSTGRES_USER=postgres
- POSTGRES_PASSWORD=password
ports:
- '5432:5432'
volumes:
- ./migrations:/docker-entrypoint-initdb.d
postgres:
image: postgres:10.5
container_name: postgresDB
restart: always
environment:
- POSTGRES_DB=db
- POSTGRES_USER=postgres
- POSTGRES_PASSWORD=password
ports:
- '5432:5432'
volumes:
- ./migrations:/docker-entrypoint-initdb.d

app:
build: .
container_name: fasthttp_app
ports:
- "8080:8080"
depends_on:
- postgres
environment:
- DB_HOST=postgres
- DB_PORT=5432
- DB_USER=postgres
- DB_PASSWORD=password
- DB_NAME=db
restart: always
28 changes: 27 additions & 1 deletion fasthttp-postgres/internal/app/app.go
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Expand Up @@ -5,6 +5,7 @@ import (
"database/sql"
"fasthttp-postgres/internal/handlers"
"fasthttp-postgres/internal/repository"
"fmt"
"log"
"net/http"
"os"
Expand All @@ -13,13 +14,38 @@ import (
"time"

"github.com/fasthttp/router"
// Import pq driver for PostgreSQL
_ "github.com/lib/pq"
"github.com/valyala/fasthttp"
)

func InitApp() error {
time.Sleep(2 * time.Second)

// Database connection initialization
uri := "postgresql://postgres:password@localhost:5432/db?sslmode=disable"
dbHost := os.Getenv("DB_HOST")
if dbHost == "" {
dbHost = "localhost"
}
dbPort := os.Getenv("DB_PORT")
if dbPort == "" {
dbPort = "5432"
}
dbUser := os.Getenv("DB_USER")
if dbUser == "" {
dbUser = "postgres"
}
dbPassword := os.Getenv("DB_PASSWORD")
if dbPassword == "" {
dbPassword = "password"
}
dbName := os.Getenv("DB_NAME")
if dbName == "" {
dbName = "db"
}

uri := fmt.Sprintf("postgresql://%s:%s@%s:%s/%s?sslmode=disable",
dbUser, dbPassword, dbHost, dbPort, dbName)
db, err := sql.Open("postgres", uri)
if err != nil {
log.Print("Error connecting to database:", err)
Expand Down
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