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serve govatar with go or docker image #22

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2 changes: 2 additions & 0 deletions server/.gitignore
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main
server
16 changes: 16 additions & 0 deletions server/README.md
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## govatar server
After startup (howto [below](#Usage)), available at http://localhost:8080
Empty username generates random avatar of selected gender

![server](server.png)

## Usage
```bash
govatar/server$ go run .
```

## Docker
```bash
govatar/server$ docker build -t govatar-server .
govatar/server$ docker run -d --name=govatar-server -p 8080:8080 govatar-server:latest
```
13 changes: 13 additions & 0 deletions server/dockerfile
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FROM golang:1.12
WORKDIR /app
COPY . .

# run
RUN go mod tidy
RUN go build -o main .

# Misc
EXPOSE 8080

# Start the server
CMD ["/app/main"]
5 changes: 5 additions & 0 deletions server/go.mod
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module github.com/o1egl/govatar/server

go 1.12

require github.com/o1egl/govatar v0.3.0
15 changes: 15 additions & 0 deletions server/go.sum
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github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/o1egl/govatar v0.3.0 h1:hGDsiJJs6qgQ6Ea4JiaukRsUKTY2Ai4dgMEdsYvlUa0=
github.com/o1egl/govatar v0.3.0/go.mod h1:YeDGDII+2Ji1RcBKvb1KqaPhk4PmuZyBq+rPYc6b+cQ=
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
github.com/stretchr/testify v1.4.0 h1:2E4SXV/wtOkTonXsotYi4li6zVWxYlZuYNCXe9XRJyk=
github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
github.com/urfave/cli v1.21.0/go.mod h1:lxDj6qX9Q6lWQxIrbrT0nwecwUtRnhVZAJjJZrVUZZQ=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/yaml.v2 v2.2.2 h1:ZCJp+EgiOT7lHqUV2J862kp8Qj64Jo6az82+3Td9dZw=
gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
66 changes: 66 additions & 0 deletions server/main.go
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package main

import (
"html/template"
"image"
"log"
"net/http"
"time"

"image/jpeg"

"github.com/o1egl/govatar"
)

func main() {
port := "8080"
router := http.NewServeMux()
router.HandleFunc("/api/v1/avatar", postAvatar)
router.HandleFunc("/", index)

server := &http.Server{
ReadTimeout: 10 * time.Second,
WriteTimeout: 10 * time.Second,
Addr: ":" + port,
Handler: router,
}
log.Println("serving govatar @ http://localhost:" + port)
log.Fatal(server.ListenAndServe())
}

func postAvatar(w http.ResponseWriter, r *http.Request) {
if r.Method != "POST" {
http.NotFound(w, r)
} else {
r.ParseForm()
name := ""
name = r.FormValue("username")
gender := govatar.MALE
if r.FormValue("gender") == "female" {
gender = govatar.FEMALE
}
var img image.Image
var err error
if name == "" {
img, err = govatar.Generate(gender)
} else {
img, err = govatar.GenerateForUsername(gender, name)
}
if err != nil {
panic(err)
}
w.Header().Set("Content-Type", "image/jpeg")
if err := jpeg.Encode(w, img, nil); err != nil {
log.Println("unable to write image.")
}
}
}

func index(w http.ResponseWriter, r *http.Request) {
if r.Method == "GET" {
t, _ := template.ParseFiles("templates/index.html")
t.Execute(w, nil)
} else {
http.NotFound(w, r)
}
}
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28 changes: 28 additions & 0 deletions server/templates/index.html
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<!DOCTYPE html>
<html>

<head>
<meta charset="UTF-8" />
</head>

<body>
<div>
<center>
<h2>Govatar server</h2>
<p>Submit username and gender for avatar generator</p>
<form method="POST" action="/api/v1/avatar">
<input name="username" type="text" value="" />
<br><br>
<select name="gender">
<option value="male">Male</option>
<option value="female">Female</option>
</select>
<br><br>
<input type="submit" value="Go" />
</form>
<img name="avatar"><img>
</center>
</div>
</body>

</html>