intitial

.gitignore

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+configs/*

README.md

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+## 3D slicer Api
+This is a simple api that slices 3d files using prusa-slicer, fff and sla modes are supported.

cmd/actions.go

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+package main
+
+import "net/http"
+
+func actions(mux *http.ServeMux) {
+
+	mux.HandleFunc("/health", func(w http.ResponseWriter, r *http.Request) {
+
+		if r.Method != http.MethodGet {
+			http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
+			return
+		}
+
+		w.WriteHeader(http.StatusOK)
+		w.Write([]byte("OK"))
+
+	})
+
+	mux.HandleFunc("/analyze-fff", func(w http.ResponseWriter, r *http.Request) {
+
+		if r.Method != http.MethodPost {
+			http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
+			return
+		}
+
+		w.WriteHeader(http.StatusOK)
+		w.Write([]byte("OK"))
+
+	})
+
+	mux.HandleFunc("/analyze-sla", func(w http.ResponseWriter, r *http.Request) {
+
+		if r.Method != http.MethodPost {
+			http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
+			return
+		}
+
+		w.WriteHeader(http.StatusOK)
+		w.Write([]byte("OK"))
+
+	})
+}

cmd/main.go

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+package main
+
+import (
+	"fmt"
+	"net/http"
+	"os"
+
+	"golang.org/x/net/http2"
+)
+
+func main() {
+	// Your code here
+	mux := http.NewServeMux()
+
+	svr := &http.Server{
+		Addr:    fmt.Sprintf("%s:%s", os.Getenv("HOST"), os.Getenv("PORT")),
+		Handler: mux,
+	}
+	http2.ConfigureServer(svr, nil)
+
+	actions(mux) // Register actions with the multiplexer
+
+	fmt.Printf("Starting server on %s:%s\n", os.Getenv("HOST"), os.Getenv("PORT"))
+	err := svr.ListenAndServe()
+	if err != nil {
+		panic(err)
+	}
+}

docker/Dockerfile

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+FROM ubuntu:plucky
+
+RUN echo "deb https://ppa.launchpadcontent.net/longsleep/golang-backports/ubuntu ubuntu-plucky main" | tee /etc/apt/sources.list.d/docker.list
+RUN apt update
+
+ENV GO_VERSION=1.24
+
+RUN apt install -y golang-${GO_VERSION}
+RUN ln -s "/usr/lib/go-${GO_VERSION}/bin/go" /usr/local/bin/
+
+RUN apt-get clean && apt-get update && apt-get install -y locales wget
+RUN locale-gen en_US.UTF-8
+RUN update-locale LC_ALL=en_US.UTF-8 LANG=en_US.UTF-8
+ENV LANG=en_US.UTF-8
+ENV LC_CTYPE="en_US.UTF-8"
+ENV LC_NUMERIC="en_US.UTF-8"
+ENV LC_TIME="en_US.UTF-8"
+ENV LC_COLLATE="en_US.UTF-8"
+ENV LC_MONETARY="en_US.UTF-8"
+ENV LC_MESSAGES="en_US.UTF-8"
+ENV LC_PAPER="en_US.UTF-8"
+ENV LC_NAME="en_US.UTF-8"
+ENV LC_ADDRESS="en_US.UTF-8"
+ENV LC_TELEPHONE="en_US.UTF-8"
+ENV LC_MEASUREMENT="en_US.UTF-8"
+ENV LC_IDENTIFICATION="en_US.UTF-8"
+ENV LC_ALL=
+   
+RUN apt install -y prusa-slicer
+
+WORKDIR /build
+
+COPY ../ .
+
+RUN go build -o /bin/slic3r-api ./cmd
+
+RUN rm -rf /build/*
+ 
+CMD [ "/bin/slic3r-api" ]

docker/docker-compose.yml

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+services:
+  slic3r-api:
+    build: 
+      context: ../
+      dockerfile: docker/Dockerfile
+    command: /bin/bash -c "cd /src && go run ./cmd"
+    volumes:
+      - ../:/src
+      - ../configs:/configs
+    environment:
+      - PORT=3030
+      - HOST=0.0.0.0 
+      - CONFIGS=/configs/ 
+    ports:
+      - 3030:3030

go.mod

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+module github.com/sotigr/slic3r-api
+
+go 1.24.2
+
+require (
+	golang.org/x/net v0.41.0 // indirect
+	golang.org/x/text v0.26.0 // indirect
+)

go.sum

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+golang.org/x/net v0.41.0 h1:vBTly1HeNPEn3wtREYfy4GZ/NECgw2Cnl+nK6Nz3uvw=
+golang.org/x/net v0.41.0/go.mod h1:B/K4NNqkfmg07DQYrbwvSluqCJOOXwUjeb/5lOisjbA=
+golang.org/x/text v0.26.0 h1:P42AVeLghgTYr4+xUnTRKDMqpar+PtX7KWuNQL21L8M=
+golang.org/x/text v0.26.0/go.mod h1:QK15LZJUUQVJxhz7wXgxSy/CJaTFjd0G+YLonydOVQA=

internal/cli/cli.go

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+package cli
+
+import (
+	"context"
+	"errors"
+	"io"
+	"os/exec"
+	"regexp"
+	"strings"
+)
+
+var re = regexp.MustCompile(`\w|\%|^(\+|,|\.|:|\/|\\|=|_|-|[a-z]|[A-Z]|[0-9]|\s)+$`)
+
+func validateCliArgument(arg string) bool {
+	return re.Match([]byte(arg))
+}
+
+func validateCliArguments(args []string) bool {
+	for _, p := range args {
+		if !validateCliArgument(p) {
+			return false
+		}
+	}
+	return true
+}
+
+func execNoCheck(ctx context.Context, command string, args []string) (string, string, error) {
+	cmd := exec.CommandContext(ctx, command, args...)
+	cmdStr := cmd.String()
+
+	pStdout, err := cmd.StdoutPipe()
+	if err != nil {
+		return "", cmdStr, err
+	}
+
+	pStderr, err := cmd.StderrPipe()
+	if err != nil {
+		return "", cmdStr, err
+	}
+
+	err = cmd.Start()
+	if err != nil {
+		return "", cmdStr, err
+	}
+
+	stdout, _ := io.ReadAll(pStdout)
+	stderr, _ := io.ReadAll(pStderr)
+
+	err = cmd.Wait()
+	if err != nil {
+		return "", cmdStr, errors.New(err.Error() + " | " + string(stderr) + " | " + string(stdout))
+	}
+	return string(stdout), cmdStr, nil
+}
+
+type Pipe struct {
+	Command string
+	Args    []string
+}
+
+func (p *Pipe) IsSanatory() bool {
+	return validateCliArguments(p.Args) && validateCliArgument(p.Command)
+}
+
+func (p *Pipe) Execute(ctx context.Context) (string, string, error) {
+	if !p.IsSanatory() {
+		return "", "", errors.New("failed to execute cli command: " + p.Command + " " + strings.Join(p.Args, " ") + " some arguments are not allowed")
+	} else {
+		return execNoCheck(ctx, p.Command, p.Args)
+	}
+}
+
+func ExecuteCLIPipeLine(ctx context.Context, pipes []Pipe) (string, string, error) {
+
+	pipeLen := len(pipes)
+	if pipeLen == 0 {
+		return "", "", errors.New("failed to execute cli command: no pipes provided")
+	}
+	argLen := 0
+	for _, p := range pipes {
+		if !p.IsSanatory() {
+			return "", "", errors.New("failed to execute cli command: " + p.Command + " " + strings.Join(p.Args, " ") + " some arguments are not allowed")
+		}
+		argLen += len(p.Args) + 1
+	}
+
+	command := "/bin/sh"
+	var args []string = []string{}
+	args = append(args, "-c")
+	pipeLen -= 1
+
+	cmdArg := ""
+
+	for i, p := range pipes {
+		cmdArg += p.Command + " " + strings.Join(p.Args, " ")
+		if i != pipeLen {
+			cmdArg += " | "
+		}
+	}
+
+	args = append(args, cmdArg)
+
+	return execNoCheck(ctx, command, args)
+}

notes.txt

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+look at:
+ * https://github.com/prusa3d/PrusaSlicer/wiki/Command-Line-Interface
+ * https://manual.slic3r.org/advanced/command-line
+
+slice:
+ * prusa-slicer --load config.ini --export-gcode --info part.stl
+ * prusa-slicer --load config.ini --info --export-sla part.stl
+
+thumbnail:
+ * f3d 'model.stl' --resolution=512,512 -a --anti-aliasing-mode=taa --filename=false --metadata=false --color=#999 -t --grid=false --axis=false --no-background --output='output.png'
+
+post-process:
+ * this can preview print times for sla: https://github.com/oelmekki/sl1toctb?tab=readme-ov-file
+
+
+