Merge branch 'main' into develop

.dockerignore

@@ -1,6 +1,7 @@
 *
+!cmd
 !nginx
-!frontend
+!pkg
 !web
 !go.mod
 !go.sum

.github/workflows/image-make-and-publish.yml

@@ -3,7 +3,9 @@ name: Docker
 on:
   workflow_dispatch:
   push:
-    branches: [ main ]
+    branches: 
+      - 'main'
+      - 'develop'
 
 env:
   REGISTRY: ghcr.io
@@ -22,6 +24,11 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v2
 
+      - name: Set up Python 
+        uses: actions/setup-python@v2
+        with:
+          python-version: '3.8'
+
       - name: Install cosign
         if: github.event_name != 'pull_request'
         uses: sigstore/cosign-installer@main
@@ -37,17 +44,38 @@ jobs:
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
+      - name: Get date as semver
+        id: calver
+        env:
+          REF_NAME: ${{ github.ref_name }}
+        run: |
+          python -c "
+          from datetime import datetime, timedelta
+          from os import environ
+          ref = environ['REF_NAME']
+          now = datetime.now()
+          date = now.strftime('%y.%m.%d')
+          delta = timedelta(hours=now.hour,minutes=now.minute,seconds=now.second)
+          print(f'::set-output name=current::{date}-{ref}.{delta.seconds}')
+          "
+
       - name: Extract Docker metadata
         id: meta
         uses: docker/metadata-action@v3
         with:
           images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+          tags: |
+            type=raw,value=${{ steps.calver.outputs.current }}
+            type=raw,value=${{ github.ref_name }}
+            type=sha
 
       - name: Build and push Docker image
         id: build-and-push
         uses: docker/build-push-action@v2
         with:
           context: .
+          build-args: |
+            APP_VERSION=${{ steps.calver.outputs.current }}
           push: ${{ github.event_name != 'pull_request' }}
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}

Dockerfile

@@ -16,13 +16,14 @@ RUN --mount=type=cache,id=gopath,target=${GOPATH} \
 
 ARG APP_VERSION=containerized
 
-COPY frontend frontend
+COPY cmd cmd
+COPY pkg pkg
 
 RUN --mount=type=cache,id=gopath,target=${GOPATH} \
     go build \
       -o nikita-tokarch-uk-frontend \
       -ldflags "-X main.Version=${APP_VERSION}" \
-      code.tokarch.uk/mainnika/nikita-tokarch-uk/frontend
+      code.tokarch.uk/mainnika/nikita-tokarch-uk/cmd/renderer
 
 FROM registry.access.redhat.com/ubi8/ubi as js-builder
 

chart/.helmignore

@@ -0,0 +1,23 @@
+# Patterns to ignore when building packages.
+# This supports shell glob matching, relative path matching, and
+# negation (prefixed with !). Only one pattern per line.
+.DS_Store
+# Common VCS dirs
+.git/
+.gitignore
+.bzr/
+.bzrignore
+.hg/
+.hgignore
+.svn/
+# Common backup files
+*.swp
+*.bak
+*.tmp
+*.orig
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
+.vscode/

chart/Chart.yaml

@@ -0,0 +1,6 @@
+apiVersion: v2
+name: nikita-tokarch-uk
+description: A Helm chart for Kubernetes
+type: application
+version: 0.1.0
+appVersion: main

chart/templates/NOTES.txt

@@ -0,0 +1,22 @@
+1. Get the application URL by running these commands:
+{{- if .Values.ingress.enabled }}
+{{- range $host := .Values.ingress.hosts }}
+  {{- range .paths }}
+  http{{ if $.Values.ingress.tls }}s{{ end }}://{{ $host.host }}{{ .path }}
+  {{- end }}
+{{- end }}
+{{- else if contains "NodePort" .Values.service.type }}
+  export NODE_PORT=$(kubectl get --namespace {{ .Release.Namespace }} -o jsonpath="{.spec.ports[0].nodePort}" services {{ include "nikita-tokarch-uk.fullname" . }})
+  export NODE_IP=$(kubectl get nodes --namespace {{ .Release.Namespace }} -o jsonpath="{.items[0].status.addresses[0].address}")
+  echo http://$NODE_IP:$NODE_PORT
+{{- else if contains "LoadBalancer" .Values.service.type }}
+     NOTE: It may take a few minutes for the LoadBalancer IP to be available.
+           You can watch the status of by running 'kubectl get --namespace {{ .Release.Namespace }} svc -w {{ include "nikita-tokarch-uk.fullname" . }}'
+  export SERVICE_IP=$(kubectl get svc --namespace {{ .Release.Namespace }} {{ include "nikita-tokarch-uk.fullname" . }} --template "{{"{{ range (index .status.loadBalancer.ingress 0) }}{{.}}{{ end }}"}}")
+  echo http://$SERVICE_IP:{{ .Values.service.port }}
+{{- else if contains "ClusterIP" .Values.service.type }}
+  export POD_NAME=$(kubectl get pods --namespace {{ .Release.Namespace }} -l "app.kubernetes.io/name={{ include "nikita-tokarch-uk.name" . }},app.kubernetes.io/instance={{ .Release.Name }}" -o jsonpath="{.items[0].metadata.name}")
+  export CONTAINER_PORT=$(kubectl get pod --namespace {{ .Release.Namespace }} $POD_NAME -o jsonpath="{.spec.containers[0].ports[0].containerPort}")
+  echo "Visit http://127.0.0.1:8080 to use your application"
+  kubectl --namespace {{ .Release.Namespace }} port-forward $POD_NAME 8080:$CONTAINER_PORT
+{{- end }}

chart/templates/_helpers.tpl

@@ -0,0 +1,62 @@
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "nikita-tokarch-uk.name" -}}
+{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Create a default fully qualified app name.
+We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
+If release name contains chart name it will be used as a full name.
+*/}}
+{{- define "nikita-tokarch-uk.fullname" -}}
+{{- if .Values.fullnameOverride }}
+{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- $name := default .Chart.Name .Values.nameOverride }}
+{{- if contains $name .Release.Name }}
+{{- .Release.Name | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" }}
+{{- end }}
+{{- end }}
+{{- end }}
+
+{{/*
+Create chart name and version as used by the chart label.
+*/}}
+{{- define "nikita-tokarch-uk.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "nikita-tokarch-uk.labels" -}}
+helm.sh/chart: {{ include "nikita-tokarch-uk.chart" . }}
+{{ include "nikita-tokarch-uk.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{/*
+Selector labels
+*/}}
+{{- define "nikita-tokarch-uk.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "nikita-tokarch-uk.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end }}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "nikita-tokarch-uk.serviceAccountName" -}}
+{{- if .Values.serviceAccount.create }}
+{{- default (include "nikita-tokarch-uk.fullname" .) .Values.serviceAccount.name }}
+{{- else }}
+{{- default "default" .Values.serviceAccount.name }}
+{{- end }}
+{{- end }}

chart/templates/config.yaml

@@ -0,0 +1,10 @@
+{{- if .Values.config -}}
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: "{{ include "nikita-tokarch-uk.fullname" . }}-config"
+  labels:
+    {{- include "nikita-tokarch-uk.labels" . | nindent 4 }}
+data:
+  {{- toYaml .Values.config | nindent 2 }}
+{{- end }}

chart/templates/deployment.yaml

@@ -0,0 +1,84 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "nikita-tokarch-uk.fullname" . }}
+  labels:
+    {{- include "nikita-tokarch-uk.labels" . | nindent 4 }}
+spec:
+  replicas: {{ .Values.replicaCount }}
+  selector:
+    matchLabels:
+      {{- include "nikita-tokarch-uk.selectorLabels" . | nindent 6 }}
+  template:
+    metadata:
+      annotations:
+        checksum/config: {{ include ( print $.Template.BasePath "/config.yaml" ) . | sha256sum }}
+      {{- with .Values.podAnnotations }}
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      labels:
+        {{- include "nikita-tokarch-uk.selectorLabels" . | nindent 8 }}
+    spec:
+      {{- with .Values.imagePullSecrets }}
+      imagePullSecrets:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      serviceAccountName: {{ include "nikita-tokarch-uk.serviceAccountName" . }}
+      securityContext:
+        {{- toYaml .Values.podSecurityContext | nindent 8 }}
+      containers:
+        - name: {{ .Chart.Name }}
+          securityContext:
+            {{- toYaml .Values.securityContext | nindent 12 }}
+          image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default .Chart.AppVersion }}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          command:
+            - /usr/sbin/nginx
+          ports:
+            - name: http
+              containerPort: 80
+              protocol: TCP
+          livenessProbe:
+            httpGet:
+              path: /version.html
+              port: http
+          readinessProbe:
+            httpGet:
+              path: /version.html
+              port: http
+          resources:
+            {{- toYaml .Values.resources | nindent 12 }}
+        - name: {{ .Chart.Name }}-renderer
+          securityContext:
+            {{- toYaml .Values.securityContext | nindent 12 }}
+          image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default .Chart.AppVersion }}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          workingDir: /etc/nikita-tokarch-uk
+          command:
+            - /usr/local/bin/nikita-tokarch-uk-frontend
+          resources:
+            {{- toYaml .Values.resources | nindent 12 }}
+          volumeMounts:
+            - name: "{{ include "nikita-tokarch-uk.fullname" . }}-config"
+              mountPath: /etc/nikita-tokarch-uk
+              readOnly: true
+      volumes:
+        - name: "{{ template "nikita-tokarch-uk.fullname" . }}-config"
+          {{- if .Values.config }}
+          configMap:
+            name: "{{ include "nikita-tokarch-uk.fullname" . }}-config"
+          {{- else }}
+          emptyDir: {}
+          {{- end }}
+      {{- with .Values.nodeSelector }}
+      nodeSelector:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.affinity }}
+      affinity:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.tolerations }}
+      tolerations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}

chart/templates/ingress.yaml

@@ -0,0 +1,61 @@
+{{- if .Values.ingress.enabled -}}
+{{- $fullName := include "nikita-tokarch-uk.fullname" . -}}
+{{- $svcPort := .Values.service.port -}}
+{{- if and .Values.ingress.className (not (semverCompare ">=1.18-0" .Capabilities.KubeVersion.GitVersion)) }}
+  {{- if not (hasKey .Values.ingress.annotations "kubernetes.io/ingress.class") }}
+  {{- $_ := set .Values.ingress.annotations "kubernetes.io/ingress.class" .Values.ingress.className}}
+  {{- end }}
+{{- end }}
+{{- if semverCompare ">=1.19-0" .Capabilities.KubeVersion.GitVersion -}}
+apiVersion: networking.k8s.io/v1
+{{- else if semverCompare ">=1.14-0" .Capabilities.KubeVersion.GitVersion -}}
+apiVersion: networking.k8s.io/v1beta1
+{{- else -}}
+apiVersion: extensions/v1beta1
+{{- end }}
+kind: Ingress
+metadata:
+  name: {{ $fullName }}
+  labels:
+    {{- include "nikita-tokarch-uk.labels" . | nindent 4 }}
+  {{- with .Values.ingress.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+spec:
+  {{- if and .Values.ingress.className (semverCompare ">=1.18-0" .Capabilities.KubeVersion.GitVersion) }}
+  ingressClassName: {{ .Values.ingress.className }}
+  {{- end }}
+  {{- if .Values.ingress.tls }}
+  tls:
+    {{- range .Values.ingress.tls }}
+    - hosts:
+        {{- range .hosts }}
+        - {{ . | quote }}
+        {{- end }}
+      secretName: {{ .secretName }}
+    {{- end }}
+  {{- end }}
+  rules:
+    {{- range .Values.ingress.hosts }}
+    - host: {{ .host | quote }}
+      http:
+        paths:
+          {{- range .paths }}
+          - path: {{ .path }}
+            {{- if and .pathType (semverCompare ">=1.18-0" $.Capabilities.KubeVersion.GitVersion) }}
+            pathType: {{ .pathType }}
+            {{- end }}
+            backend:
+              {{- if semverCompare ">=1.19-0" $.Capabilities.KubeVersion.GitVersion }}
+              service:
+                name: {{ $fullName }}
+                port:
+                  number: {{ $svcPort }}
+              {{- else }}
+              serviceName: {{ $fullName }}
+              servicePort: {{ $svcPort }}
+              {{- end }}
+          {{- end }}
+    {{- end }}
+{{- end }}

chart/templates/service.yaml

@@ -0,0 +1,15 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ include "nikita-tokarch-uk.fullname" . }}
+  labels:
+    {{- include "nikita-tokarch-uk.labels" . | nindent 4 }}
+spec:
+  type: {{ .Values.service.type }}
+  ports:
+    - port: {{ .Values.service.port }}
+      targetPort: http
+      protocol: TCP
+      name: http
+  selector:
+    {{- include "nikita-tokarch-uk.selectorLabels" . | nindent 4 }}

chart/templates/serviceaccount.yaml

@@ -0,0 +1,12 @@
+{{- if .Values.serviceAccount.create -}}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "nikita-tokarch-uk.serviceAccountName" . }}
+  labels:
+    {{- include "nikita-tokarch-uk.labels" . | nindent 4 }}
+  {{- with .Values.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+{{- end }}

chart/templates/tests/test-connection.yaml

@@ -0,0 +1,15 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: "{{ include "nikita-tokarch-uk.fullname" . }}-test-connection"
+  labels:
+    {{- include "nikita-tokarch-uk.labels" . | nindent 4 }}
+  annotations:
+    "helm.sh/hook": test
+spec:
+  containers:
+    - name: wget
+      image: busybox
+      command: ['wget']
+      args: ['{{ include "nikita-tokarch-uk.fullname" . }}:{{ .Values.service.port }}']
+  restartPolicy: Never

chart/values.yaml

@@ -0,0 +1,77 @@
+# Default values for nikita-tokarch-uk.
+# This is a YAML-formatted file.
+# Declare variables to be passed into your templates.
+
+# config:
+#  frontend.yaml: |-
+
+replicaCount: 1
+
+image:
+  repository: ghcr.io/mainnika/nikita-tokarch-uk
+  pullPolicy: Always
+  # tag: "main"
+
+imagePullSecrets: []
+nameOverride: ""
+fullnameOverride: ""
+
+serviceAccount:
+  # Specifies whether a service account should be created
+  create: false
+  # Annotations to add to the service account
+  annotations: {}
+  # The name of the service account to use.
+  # If not set and create is true, a name is generated using the fullname template
+  name: ""
+
+podAnnotations: {}
+
+podSecurityContext: {}
+  # fsGroup: 2000
+
+securityContext: {}
+  # capabilities:
+  #   drop:
+  #   - ALL
+  # readOnlyRootFilesystem: true
+  # runAsNonRoot: true
+  # runAsUser: 1000
+
+service:
+  type: ClusterIP
+  port: 80
+
+ingress:
+  enabled: true
+  className: "nginx"
+  annotations: {}
+    # kubernetes.io/ingress.class: nginx
+    # kubernetes.io/tls-acme: "true"
+  hosts:
+    - host: nikita.tokarch.uk
+      paths:
+        - path: /
+          pathType: Prefix
+  tls: []
+  #  - secretName: chart-example-tls
+  #    hosts:
+  #      - chart-example.local
+
+resources: {}
+  # We usually recommend not to specify default resources and to leave this as a conscious
+  # choice for the user. This also increases chances charts run on environments with little
+  # resources, such as Minikube. If you do want to specify resources, uncomment the following
+  # lines, adjust them as necessary, and remove the curly braces after 'resources:'.
+  # limits:
+  #   cpu: 100m
+  #   memory: 128Mi
+  # requests:
+  #   cpu: 100m
+  #   memory: 128Mi
+
+nodeSelector: {}
+
+tolerations: []
+
+affinity: {}

cmd/renderer/main.go

@@ -9,11 +9,10 @@ import (
 	"github.com/spf13/viper"
 	"github.com/valyala/fasthttp"
 
-	"code.tokarch.uk/mainnika/nikita-tokarch-uk/frontend/config"
-	"code.tokarch.uk/mainnika/nikita-tokarch-uk/frontend/ghost"
-	"code.tokarch.uk/mainnika/nikita-tokarch-uk/frontend/renderer"
-
-	_ "code.tokarch.uk/mainnika/nikita-tokarch-uk/frontend/templates"
+	"code.tokarch.uk/mainnika/nikita-tokarch-uk/pkg/config"
+	"code.tokarch.uk/mainnika/nikita-tokarch-uk/pkg/ghost/v4api/httpclient"
+	"code.tokarch.uk/mainnika/nikita-tokarch-uk/pkg/routes"
+	_ "code.tokarch.uk/mainnika/nikita-tokarch-uk/pkg/templates"
 )
 
 var Version = "nightly"
@@ -53,14 +52,15 @@ func main() {
 		logrus.Fatal(err)
 	}
 
-	ghostClient := &ghost.HTTPClient{
-		Addr:         config.Content.Backend,
+	ghostClient := &httpclient.HTTPClient{
+		Addr:         config.Content.Backend.Addr,
+		Secured:      config.Content.Backend.Secured,
+		Headers:      config.Content.Backend.Headers,
 		ContentKey:   config.Content.Key,
-		Secured:      true,
 		QueryTimeout: time.Second,
 	}
 
-	rendererHandler := &renderer.Renderer{
+	apiRoutes := &routes.Routes{
 		GhostClient:   ghostClient,
 		ContentConfig: config.Content,
 		Base:          config.Base,
@@ -68,7 +68,7 @@ func main() {
 
 	httpServer := fasthttp.Server{
 		Logger:  logrus.StandardLogger(),
-		Handler: rendererHandler.Handler,
+		Handler: apiRoutes.Handler,
 		Name:    frontendServerIdentity,
 		GetOnly: true,
 	}

frontend/ghost/ghost.go

@@ -1,10 +0,0 @@
-package ghost
-
-//go:generate $GOPATH/bin/easyjson -pkg -no_std_marshalers
-
-// Client is the ghost backend client
-type Client interface {
-	GetPosts(params ...QueryParam) (posts *Posts, err error)
-	GetPostBySlug(slug string, params ...QueryParam) (posts *Posts, err error)
-	GetPageBySlug(slug string) (pages *Pages, err error)
-}

frontend/ghost/params.go

@@ -1,48 +0,0 @@
-package ghost
-
-import (
-	"strconv"
-
-	"github.com/valyala/fasthttp"
-)
-
-// QueryParam is the generic query param applier
-type QueryParam interface {
-	Apply(headers *fasthttp.RequestHeader, args *fasthttp.Args)
-}
-
-// QueryLimit returns limit param query
-func QueryLimit(limit int) queryLimit {
-	return queryLimit{limit: limit}
-}
-
-// QueryPage returns page param query
-func QueryPage(page int) queryPage {
-	return queryPage{page: page}
-}
-
-// queryLimit implements the limit param query applier
-type queryLimit struct{ limit int }
-
-// Apply applies the limit argument to the query
-func (ql queryLimit) Apply(headers *fasthttp.RequestHeader, args *fasthttp.Args) {
-
-	if ql.limit == 0 {
-		return
-	}
-
-	args.Add("limit", strconv.Itoa(ql.limit))
-}
-
-// queryPage implements the page param query applier
-type queryPage struct{ page int }
-
-// Apply applies the page argument to the query
-func (qp queryPage) Apply(headers *fasthttp.RequestHeader, args *fasthttp.Args) {
-
-	if qp.page < 2 {
-		return
-	}
-
-	args.Add("page", strconv.Itoa(qp.page))
-}

nginx/nginx.conf

@@ -38,6 +38,10 @@ http {
             try_files $uri $uri/ @frontend;
         }
 
+        location = / {
+            proxy_pass http://frontend;
+        }
+
         location @frontend {
             proxy_pass http://frontend;
         }

pkg/config/config.go

@@ -8,12 +8,19 @@ import (
 	"github.com/spf13/viper"
 )
 
+// Backend contains backend connection-specific configuration
+type Backend struct {
+	Addr    string            `mapstructure:"addr"`
+	Secured bool              `mapstructure:"secured"`
+	Headers map[string]string `mapstructure:"headers"`
+}
+
 // Content contains content-specific configuration
 type Content struct {
-	Backend      string `mapstructure:"backend"`
-	Key          string `mapstructure:"key"`
-	Pinned       string `mapstructure:"pinned"`
-	PostsPerPage int    `mapstructure:"postsPerPage"`
+	Backend      Backend `mapstructure:"backend"`
+	Key          string  `mapstructure:"key"`
+	Pinned       string  `mapstructure:"pinned"`
+	PostsPerPage int     `mapstructure:"postsPerPage"`
 }
 
 // Config contains application configuration
@@ -36,7 +43,9 @@ func init() {
 	pflag.String("unix", "", "unix socket path to listen")
 	pflag.String("base", "", "http URI prefix")
 
-	pflag.String("content.backend", "demo.ghost.io:443", "ghost backend addr")
+	pflag.StringToString("content.backend.headers", nil, "map of additional headers to send")
+	pflag.String("content.backend.addr", "demo.ghost.io:443", "ghost backend addr")
+	pflag.Bool("content.backend.secured", true, "is ghost backend secured")
 	pflag.String("content.key", "22444f78447824223cefc48062", "ghost content api key")
 	pflag.String("content.pinned", "contact", "pinned page slug")
 	pflag.Int("content.postsPerPage", 5, "amount of posts per page")

pkg/content/blog.go

@@ -3,15 +3,15 @@ package content
 import (
 	"fmt"
 
-	"code.tokarch.uk/mainnika/nikita-tokarch-uk/frontend/ghost"
+	"code.tokarch.uk/mainnika/nikita-tokarch-uk/pkg/ghost/data"
 )
 
 // Blog content data
 type Blog struct {
 	_ interface{} `template:"blog.go.tmpl"`
-	ghost.Meta
-	Pinned []ghost.Post
-	Posts  []ghost.Post
+	data.Meta
+	Pinned []data.Post
+	Posts  []data.Post
 }
 
 // Title returns blog content title

pkg/content/index.go

@@ -1,15 +1,13 @@
 package content
 
-import (
-	"code.tokarch.uk/mainnika/nikita-tokarch-uk/frontend/ghost"
-)
+import "code.tokarch.uk/mainnika/nikita-tokarch-uk/pkg/ghost/data"
 
 // Index content data
 type Index struct {
 	_ interface{} `template:"index.go.tmpl"`
-	ghost.Meta
-	Pinned []ghost.Post
-	Posts  []ghost.Post
+	data.Meta
+	Pinned []data.Post
+	Posts  []data.Post
 }
 
 // Title returns index title

pkg/ghost/data/data.go

@@ -1,4 +1,6 @@
-package ghost
+package data
+
+//go:generate $GOPATH/bin/easyjson -pkg -no_std_marshalers
 
 import "html/template"
 

pkg/ghost/data/data_easyjson.go

@@ -1,6 +1,6 @@
 // Code generated by easyjson for marshaling/unmarshaling. DO NOT EDIT.
 
-package ghost
+package data
 
 import (
 	json "encoding/json"
@@ -18,7 +18,7 @@ var (
 	_ easyjson.Marshaler
 )
 
-func easyjson72852e1bDecodeCodeTokarchUkMainnikaNikitaTokarchUkFrontendGhost(in *jlexer.Lexer, out *Posts) {
+func easyjson794297d0DecodeCodeTokarchUkMainnikaNikitaTokarchUkFrontendGhostData(in *jlexer.Lexer, out *Posts) {
 	isTopLevel := in.IsStart()
 	if in.IsNull() {
 		if isTopLevel {
@@ -72,7 +72,7 @@ func easyjson72852e1bDecodeCodeTokarchUkMainnikaNikitaTokarchUkFrontendGhost(in
 		in.Consumed()
 	}
 }
-func easyjson72852e1bEncodeCodeTokarchUkMainnikaNikitaTokarchUkFrontendGhost(out *jwriter.Writer, in Posts) {
+func easyjson794297d0EncodeCodeTokarchUkMainnikaNikitaTokarchUkFrontendGhostData(out *jwriter.Writer, in Posts) {
 	out.RawByte('{')
 	first := true
 	_ = first
@@ -102,14 +102,14 @@ func easyjson72852e1bEncodeCodeTokarchUkMainnikaNikitaTokarchUkFrontendGhost(out
 
 // MarshalEasyJSON supports easyjson.Marshaler interface
 func (v Posts) MarshalEasyJSON(w *jwriter.Writer) {
-	easyjson72852e1bEncodeCodeTokarchUkMainnikaNikitaTokarchUkFrontendGhost(w, v)
+	easyjson794297d0EncodeCodeTokarchUkMainnikaNikitaTokarchUkFrontendGhostData(w, v)
 }
 
 // UnmarshalEasyJSON supports easyjson.Unmarshaler interface
 func (v *Posts) UnmarshalEasyJSON(l *jlexer.Lexer) {
-	easyjson72852e1bDecodeCodeTokarchUkMainnikaNikitaTokarchUkFrontendGhost(l, v)
+	easyjson794297d0DecodeCodeTokarchUkMainnikaNikitaTokarchUkFrontendGhostData(l, v)
 }
-func easyjson72852e1bDecodeCodeTokarchUkMainnikaNikitaTokarchUkFrontendGhost1(in *jlexer.Lexer, out *Post) {
+func easyjson794297d0DecodeCodeTokarchUkMainnikaNikitaTokarchUkFrontendGhostData1(in *jlexer.Lexer, out *Post) {
 	isTopLevel := in.IsStart()
 	if in.IsNull() {
 		if isTopLevel {
@@ -148,7 +148,7 @@ func easyjson72852e1bDecodeCodeTokarchUkMainnikaNikitaTokarchUkFrontendGhost1(in
 		in.Consumed()
 	}
 }
-func easyjson72852e1bEncodeCodeTokarchUkMainnikaNikitaTokarchUkFrontendGhost1(out *jwriter.Writer, in Post) {
+func easyjson794297d0EncodeCodeTokarchUkMainnikaNikitaTokarchUkFrontendGhostData1(out *jwriter.Writer, in Post) {
 	out.RawByte('{')
 	first := true
 	_ = first
@@ -182,14 +182,14 @@ func easyjson72852e1bEncodeCodeTokarchUkMainnikaNikitaTokarchUkFrontendGhost1(ou
 
 // MarshalEasyJSON supports easyjson.Marshaler interface
 func (v Post) MarshalEasyJSON(w *jwriter.Writer) {
-	easyjson72852e1bEncodeCodeTokarchUkMainnikaNikitaTokarchUkFrontendGhost1(w, v)
+	easyjson794297d0EncodeCodeTokarchUkMainnikaNikitaTokarchUkFrontendGhostData1(w, v)
 }
 
 // UnmarshalEasyJSON supports easyjson.Unmarshaler interface
 func (v *Post) UnmarshalEasyJSON(l *jlexer.Lexer) {
-	easyjson72852e1bDecodeCodeTokarchUkMainnikaNikitaTokarchUkFrontendGhost1(l, v)
+	easyjson794297d0DecodeCodeTokarchUkMainnikaNikitaTokarchUkFrontendGhostData1(l, v)
 }
-func easyjson72852e1bDecodeCodeTokarchUkMainnikaNikitaTokarchUkFrontendGhost2(in *jlexer.Lexer, out *Pagination) {
+func easyjson794297d0DecodeCodeTokarchUkMainnikaNikitaTokarchUkFrontendGhostData2(in *jlexer.Lexer, out *Pagination) {
 	isTopLevel := in.IsStart()
 	if in.IsNull() {
 		if isTopLevel {
@@ -226,7 +226,7 @@ func easyjson72852e1bDecodeCodeTokarchUkMainnikaNikitaTokarchUkFrontendGhost2(in
 		in.Consumed()
 	}
 }
-func easyjson72852e1bEncodeCodeTokarchUkMainnikaNikitaTokarchUkFrontendGhost2(out *jwriter.Writer, in Pagination) {
+func easyjson794297d0EncodeCodeTokarchUkMainnikaNikitaTokarchUkFrontendGhostData2(out *jwriter.Writer, in Pagination) {
 	out.RawByte('{')
 	first := true
 	_ = first
@@ -255,14 +255,14 @@ func easyjson72852e1bEncodeCodeTokarchUkMainnikaNikitaTokarchUkFrontendGhost2(ou
 
 // MarshalEasyJSON supports easyjson.Marshaler interface
 func (v Pagination) MarshalEasyJSON(w *jwriter.Writer) {
-	easyjson72852e1bEncodeCodeTokarchUkMainnikaNikitaTokarchUkFrontendGhost2(w, v)
+	easyjson794297d0EncodeCodeTokarchUkMainnikaNikitaTokarchUkFrontendGhostData2(w, v)
 }
 
 // UnmarshalEasyJSON supports easyjson.Unmarshaler interface
 func (v *Pagination) UnmarshalEasyJSON(l *jlexer.Lexer) {
-	easyjson72852e1bDecodeCodeTokarchUkMainnikaNikitaTokarchUkFrontendGhost2(l, v)
+	easyjson794297d0DecodeCodeTokarchUkMainnikaNikitaTokarchUkFrontendGhostData2(l, v)
 }
-func easyjson72852e1bDecodeCodeTokarchUkMainnikaNikitaTokarchUkFrontendGhost3(in *jlexer.Lexer, out *Pages) {
+func easyjson794297d0DecodeCodeTokarchUkMainnikaNikitaTokarchUkFrontendGhostData3(in *jlexer.Lexer, out *Pages) {
 	isTopLevel := in.IsStart()
 	if in.IsNull() {
 		if isTopLevel {
@@ -316,7 +316,7 @@ func easyjson72852e1bDecodeCodeTokarchUkMainnikaNikitaTokarchUkFrontendGhost3(in
 		in.Consumed()
 	}
 }
-func easyjson72852e1bEncodeCodeTokarchUkMainnikaNikitaTokarchUkFrontendGhost3(out *jwriter.Writer, in Pages) {
+func easyjson794297d0EncodeCodeTokarchUkMainnikaNikitaTokarchUkFrontendGhostData3(out *jwriter.Writer, in Pages) {
 	out.RawByte('{')
 	first := true
 	_ = first
@@ -346,14 +346,14 @@ func easyjson72852e1bEncodeCodeTokarchUkMainnikaNikitaTokarchUkFrontendGhost3(ou
 
 // MarshalEasyJSON supports easyjson.Marshaler interface
 func (v Pages) MarshalEasyJSON(w *jwriter.Writer) {
-	easyjson72852e1bEncodeCodeTokarchUkMainnikaNikitaTokarchUkFrontendGhost3(w, v)
+	easyjson794297d0EncodeCodeTokarchUkMainnikaNikitaTokarchUkFrontendGhostData3(w, v)
 }
 
 // UnmarshalEasyJSON supports easyjson.Unmarshaler interface
 func (v *Pages) UnmarshalEasyJSON(l *jlexer.Lexer) {
-	easyjson72852e1bDecodeCodeTokarchUkMainnikaNikitaTokarchUkFrontendGhost3(l, v)
+	easyjson794297d0DecodeCodeTokarchUkMainnikaNikitaTokarchUkFrontendGhostData3(l, v)
 }
-func easyjson72852e1bDecodeCodeTokarchUkMainnikaNikitaTokarchUkFrontendGhost4(in *jlexer.Lexer, out *Meta) {
+func easyjson794297d0DecodeCodeTokarchUkMainnikaNikitaTokarchUkFrontendGhostData4(in *jlexer.Lexer, out *Meta) {
 	isTopLevel := in.IsStart()
 	if in.IsNull() {
 		if isTopLevel {
@@ -384,7 +384,7 @@ func easyjson72852e1bDecodeCodeTokarchUkMainnikaNikitaTokarchUkFrontendGhost4(in
 		in.Consumed()
 	}
 }
-func easyjson72852e1bEncodeCodeTokarchUkMainnikaNikitaTokarchUkFrontendGhost4(out *jwriter.Writer, in Meta) {
+func easyjson794297d0EncodeCodeTokarchUkMainnikaNikitaTokarchUkFrontendGhostData4(out *jwriter.Writer, in Meta) {
 	out.RawByte('{')
 	first := true
 	_ = first
@@ -398,10 +398,10 @@ func easyjson72852e1bEncodeCodeTokarchUkMainnikaNikitaTokarchUkFrontendGhost4(ou
 
 // MarshalEasyJSON supports easyjson.Marshaler interface
 func (v Meta) MarshalEasyJSON(w *jwriter.Writer) {
-	easyjson72852e1bEncodeCodeTokarchUkMainnikaNikitaTokarchUkFrontendGhost4(w, v)
+	easyjson794297d0EncodeCodeTokarchUkMainnikaNikitaTokarchUkFrontendGhostData4(w, v)
 }
 
 // UnmarshalEasyJSON supports easyjson.Unmarshaler interface
 func (v *Meta) UnmarshalEasyJSON(l *jlexer.Lexer) {
-	easyjson72852e1bDecodeCodeTokarchUkMainnikaNikitaTokarchUkFrontendGhost4(l, v)
+	easyjson794297d0DecodeCodeTokarchUkMainnikaNikitaTokarchUkFrontendGhostData4(l, v)
 }

pkg/ghost/ghost.go

@@ -0,0 +1,16 @@
+package ghost
+
+import (
+	"code.tokarch.uk/mainnika/nikita-tokarch-uk/pkg/ghost/data"
+	"code.tokarch.uk/mainnika/nikita-tokarch-uk/pkg/ghost/params"
+)
+
+// Client is the ghost backend client
+type Client interface {
+	// GetPosts returns blog posts according to query params
+	GetPosts(queryParams ...params.Modifier) (posts *data.Posts, err error)
+	// GetPostBySlug returns a single post by its slug title and query params
+	GetPostBySlug(slug string, queryParams ...params.Modifier) (posts *data.Posts, err error)
+	// GetPageBySlug returns a single page by its slug title and query params
+	GetPageBySlug(slug string, queryParams ...params.Modifier) (pages *data.Pages, err error)
+}

pkg/ghost/params/params.go

@@ -0,0 +1,39 @@
+package params
+
+// Params are generics query argument
+type Params struct {
+	Limit int
+	Page  int
+}
+
+// Modifier function takes params and makes some changes
+type Modifier func(params Params) Params
+
+// Modifiers is a list of modifier
+type Modifiers []Modifier
+
+// Apply function modifies params
+func (ms Modifiers) Apply(params Params) Params {
+
+	for _, m := range ms {
+		params = m(params)
+	}
+
+	return params
+}
+
+// WithLimit modifier setups the limit
+func WithLimit(limit int) Modifier {
+	return func(params Params) Params {
+		params.Limit = limit
+		return params
+	}
+}
+
+// WithPage modifier setups the page
+func WithPage(page int) Modifier {
+	return func(params Params) Params {
+		params.Page = page
+		return params
+	}
+}

pkg/ghost/v4api/httpclient/client.go

@@ -1,15 +1,20 @@
-package ghost
+package httpclient
 
 import (
 	"fmt"
+	"strconv"
 	"sync"
 	"time"
 
 	"github.com/mailru/easyjson"
 	"github.com/valyala/fasthttp"
+
+	"code.tokarch.uk/mainnika/nikita-tokarch-uk/pkg/ghost"
+	"code.tokarch.uk/mainnika/nikita-tokarch-uk/pkg/ghost/data"
+	"code.tokarch.uk/mainnika/nikita-tokarch-uk/pkg/ghost/params"
 )
 
-var _ Client = (*HTTPClient)(nil)
+var _ ghost.Client = (*HTTPClient)(nil)
 
 // Ghost content data URIs:
 const (
@@ -25,6 +30,7 @@ type HTTPClient struct {
 	ContentKey   string
 	Addr         string
 	Secured      bool
+	Headers      map[string]string
 
 	client *fasthttp.HostClient
 
@@ -44,7 +50,7 @@ func (g *HTTPClient) setupClient() {
 }
 
 // doQuery does the method and unmarshals the result into the easyjson Unmarshaler
-func (g *HTTPClient) doQuery(method string, v easyjson.Unmarshaler, params ...QueryParam) (err error) {
+func (g *HTTPClient) doQuery(path string, v easyjson.Unmarshaler, params params.Params) (err error) {
 
 	g.setupClientOnce.Do(g.setupClient)
 
@@ -55,17 +61,8 @@ func (g *HTTPClient) doQuery(method string, v easyjson.Unmarshaler, params ...Qu
 		fasthttp.ReleaseRequest(req)
 	}()
 
-	uri := req.URI()
-	uri.SetHost(g.Addr)
-	uri.SetPath(method)
-	uri.QueryArgs().Add("key", g.ContentKey)
-	if g.client.IsTLS {
-		uri.SetScheme("https")
-	}
-
-	for _, param := range params {
-		param.Apply(&req.Header, uri.QueryArgs())
-	}
+	g.setupRequest(path, req)
+	g.applyParams(params, req)
 
 	err = g.client.DoTimeout(req, res, g.QueryTimeout)
 	if err != nil {
@@ -78,7 +75,6 @@ func (g *HTTPClient) doQuery(method string, v easyjson.Unmarshaler, params ...Qu
 	resBytes := res.Body()
 	if resBytes == nil && v == nil {
 		return fmt.Errorf("nothing to unmarshal")
-
 	}
 	if resBytes == nil {
 		return
@@ -89,13 +85,53 @@ func (g *HTTPClient) doQuery(method string, v easyjson.Unmarshaler, params ...Qu
 	return
 }
 
-// GetPageBySlug returns the only one page using slug filter
-func (g *HTTPClient) GetPageBySlug(slug string) (pages *Pages, err error) {
+// setupRequest does the necessary initial configuration to the http request
+func (g *HTTPClient) setupRequest(path string, req *fasthttp.Request) {
 
-	pages = &Pages{}
+	uri := req.URI()
+
+	scheme := "http"
+	if g.Secured {
+		scheme = "https"
+	}
+
+	uri.SetHost(g.Addr)
+	uri.SetPath(path)
+	uri.SetScheme(scheme)
+
+	uri.QueryArgs().Add("key", g.ContentKey)
+
+	for hKey, hValue := range g.Headers {
+		req.Header.Add(hKey, hValue)
+	}
+}
+
+// applyParams function additionally configure the http request using params
+func (g *HTTPClient) applyParams(p params.Params, req *fasthttp.Request) (err error) {
+
+	uri := req.URI()
+
+	limit := p.Limit
+	if limit > 0 {
+		uri.QueryArgs().Add("limit", strconv.Itoa(limit))
+	}
+
+	page := p.Page
+	if page > 1 {
+		uri.QueryArgs().Add("page", strconv.Itoa(page))
+	}
+
+	return
+}
+
+// GetPageBySlug returns the only one page using slug filter
+func (g *HTTPClient) GetPageBySlug(slug string, queryModifiers ...params.Modifier) (pages *data.Pages, err error) {
+
+	pages = &data.Pages{}
+	defaultParams := params.Params{}
 	method := fmt.Sprintf(ghostAPIGetPageBySlug, slug)
 
-	err = g.doQuery(method, pages)
+	err = g.doQuery(method, pages, defaultParams)
 	if err != nil {
 		pages = nil
 	}
@@ -104,10 +140,13 @@ func (g *HTTPClient) GetPageBySlug(slug string) (pages *Pages, err error) {
 }
 
 // GetPosts returns posts
-func (g *HTTPClient) GetPosts(params ...QueryParam) (posts *Posts, err error) {
+func (g *HTTPClient) GetPosts(queryModifiers ...params.Modifier) (posts *data.Posts, err error) {
 
-	posts = &Posts{}
-	err = g.doQuery(ghostAPIGetPosts, posts, params...)
+	posts = &data.Posts{}
+	defaultParams := params.Params{}
+	combinedParams := params.Modifiers(queryModifiers).Apply(defaultParams)
+
+	err = g.doQuery(ghostAPIGetPosts, posts, combinedParams)
 	if err != nil {
 		posts = nil
 	}
@@ -116,12 +155,14 @@ func (g *HTTPClient) GetPosts(params ...QueryParam) (posts *Posts, err error) {
 }
 
 // GetPostBySlug returns the only one post using slug filter
-func (g *HTTPClient) GetPostBySlug(slug string, params ...QueryParam) (posts *Posts, err error) {
+func (g *HTTPClient) GetPostBySlug(slug string, queryModifiers ...params.Modifier) (posts *data.Posts, err error) {
 
-	posts = &Posts{}
+	posts = &data.Posts{}
+	defaultParams := params.Params{}
+	combinedParams := params.Modifiers(queryModifiers).Apply(defaultParams)
 	method := fmt.Sprintf(ghostAPIGetPostBySlug, slug)
 
-	err = g.doQuery(method, posts, params...)
+	err = g.doQuery(method, posts, combinedParams)
 	if err != nil {
 		posts = nil
 	}

pkg/routes/blog.go

@@ -1,18 +1,22 @@
-package renderer
+package routes
 
 import (
-	"code.tokarch.uk/mainnika/nikita-tokarch-uk/frontend/content"
-	"code.tokarch.uk/mainnika/nikita-tokarch-uk/frontend/ghost"
 	routing "github.com/jackwhelpton/fasthttp-routing/v2"
+
+	"code.tokarch.uk/mainnika/nikita-tokarch-uk/pkg/content"
+	"code.tokarch.uk/mainnika/nikita-tokarch-uk/pkg/ghost/params"
 )
 
 // blog handler renders blog data
-func (r *Renderer) blog(c *routing.Context) (err error) {
+func (r *Routes) blog(c *routing.Context) (err error) {
 
 	postsPerPage := r.ContentConfig.PostsPerPage
 	currentPage := c.QueryArgs().GetUintOrZero("page")
 
-	latestPosts, err := r.GhostClient.GetPosts(ghost.QueryLimit(postsPerPage), ghost.QueryPage(currentPage))
+	latestPosts, err := r.GhostClient.GetPosts(
+		params.WithLimit(postsPerPage),
+		params.WithPage(currentPage),
+	)
 	if err != nil {
 		return
 	}

pkg/routes/error.go

@@ -1,16 +1,17 @@
-package renderer
+package routes
 
 import (
 	"fmt"
 	"net/http"
 
-	"code.tokarch.uk/mainnika/nikita-tokarch-uk/frontend/content"
 	routing "github.com/jackwhelpton/fasthttp-routing/v2"
 	"github.com/sirupsen/logrus"
+
+	"code.tokarch.uk/mainnika/nikita-tokarch-uk/pkg/content"
 )
 
 // errorNotFound renders http error-404 template
-func (r *Renderer) errorNotFound(c *routing.Context) (err error) {
+func (r *Routes) errorNotFound(c *routing.Context) (err error) {
 
 	errorContent := content.Error{Message: "not found"}
 
@@ -18,7 +19,7 @@ func (r *Renderer) errorNotFound(c *routing.Context) (err error) {
 }
 
 // useErrorHandler is the middleware that catch handlers errors and render error template
-func (r *Renderer) useErrorHandler(c *routing.Context) (err error) {
+func (r *Routes) useErrorHandler(c *routing.Context) (err error) {
 
 	worker := func() (err error) {
 

pkg/routes/index.go

@@ -1,16 +1,17 @@
-package renderer
+package routes
 
 import (
 	"net/http"
 
-	"code.tokarch.uk/mainnika/nikita-tokarch-uk/frontend/content"
-	"code.tokarch.uk/mainnika/nikita-tokarch-uk/frontend/ghost"
-	"code.tokarch.uk/mainnika/nikita-tokarch-uk/frontend/templates"
 	routing "github.com/jackwhelpton/fasthttp-routing/v2"
+
+	"code.tokarch.uk/mainnika/nikita-tokarch-uk/pkg/content"
+	"code.tokarch.uk/mainnika/nikita-tokarch-uk/pkg/ghost/params"
+	"code.tokarch.uk/mainnika/nikita-tokarch-uk/pkg/templates"
 )
 
 // rootRedirect redirects the root url to the index using http redirect
-func (r *Renderer) rootRedirect(c *routing.Context) (err error) {
+func (r *Routes) rootRedirect(c *routing.Context) (err error) {
 
 	c.Redirect(templates.URLIndex, http.StatusFound)
 
@@ -18,7 +19,7 @@ func (r *Renderer) rootRedirect(c *routing.Context) (err error) {
 }
 
 // index handler renders index data
-func (r *Renderer) index(c *routing.Context) (err error) {
+func (r *Routes) index(c *routing.Context) (err error) {
 
 	pinnedPageSlug := r.ContentConfig.Pinned
 	postsPerPage := r.ContentConfig.PostsPerPage
@@ -28,7 +29,7 @@ func (r *Renderer) index(c *routing.Context) (err error) {
 		return
 	}
 
-	latestPosts, err := r.GhostClient.GetPosts(ghost.QueryLimit(postsPerPage))
+	latestPosts, err := r.GhostClient.GetPosts(params.WithLimit(postsPerPage))
 	if err != nil {
 		return
 	}

pkg/routes/output.go

@@ -1,11 +1,12 @@
-package renderer
+package routes
 
 import (
 	"io"
 
-	"code.tokarch.uk/mainnika/nikita-tokarch-uk/frontend/templates"
 	routing "github.com/jackwhelpton/fasthttp-routing/v2"
 	"github.com/valyala/fasthttp"
+
+	"code.tokarch.uk/mainnika/nikita-tokarch-uk/pkg/templates"
 )
 
 var _ routing.DataWriter = (*TemplateWriter)(nil)
@@ -30,7 +31,7 @@ func (tw *TemplateWriter) Write(w io.Writer, content interface{}) error {
 }
 
 // useTemplateWriter is the routing middleware to set the default data writer
-func (r *Renderer) useTemplateWriter(c *routing.Context) (err error) {
+func (r *Routes) useTemplateWriter(c *routing.Context) (err error) {
 
 	c.SetDataWriter(staticWriter)
 

pkg/routes/routes.go

@@ -1,4 +1,4 @@
-package renderer
+package routes
 
 import (
 	"sync"
@@ -6,13 +6,13 @@ import (
 	routing "github.com/jackwhelpton/fasthttp-routing/v2"
 	"github.com/valyala/fasthttp"
 
-	"code.tokarch.uk/mainnika/nikita-tokarch-uk/frontend/config"
-	"code.tokarch.uk/mainnika/nikita-tokarch-uk/frontend/ghost"
-	"code.tokarch.uk/mainnika/nikita-tokarch-uk/frontend/templates"
+	"code.tokarch.uk/mainnika/nikita-tokarch-uk/pkg/config"
+	"code.tokarch.uk/mainnika/nikita-tokarch-uk/pkg/ghost"
+	"code.tokarch.uk/mainnika/nikita-tokarch-uk/pkg/templates"
 )
 
-// Renderer is the main handler that contains all routes handlers
-type Renderer struct {
+// Routes is the main handler that contains all routes handlers
+type Routes struct {
 	GhostClient   ghost.Client
 	ContentConfig config.Content
 
@@ -25,13 +25,13 @@ type Renderer struct {
 }
 
 // Handler invokes the lazy once-initializer and then does the request
-func (r *Renderer) Handler(ctx *fasthttp.RequestCtx) {
+func (r *Routes) Handler(ctx *fasthttp.RequestCtx) {
 	r.initOnce.Do(r.init)
 	r.handler(ctx)
 }
 
 // init has the renderer initialization
-func (r *Renderer) init() {
+func (r *Routes) init() {
 
 	router := routing.New()
 

pkg/templates/funcs.go

@@ -2,6 +2,7 @@ package templates
 
 import "html/template"
 
+// UseFuncs returns a func map with template helpers functions
 func UseFuncs() template.FuncMap {
 	return template.FuncMap{
 		"add": func(i int) int {