first implementation

.github/workflows/main.yml

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+name: Main
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+
+jobs:
+  main:
+    name: Main process
+    runs-on: ubuntu-latest
+    env:
+      GO_VERSION: 1.21
+      GOLANGCI_LINT_VERSION: v1.55.2
+
+    steps:
+
+      # https://github.com/marketplace/actions/checkout
+      - name: Check out code
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      # https://github.com/marketplace/actions/setup-go-environment
+      - name: Set up Go ${{ env.GO_VERSION }}
+        uses: actions/setup-go@v2
+        with:
+          go-version: ${{ env.GO_VERSION }}
+
+      # https://golangci-lint.run/usage/install#other-ci
+      - name: Install golangci-lint ${{ env.GOLANGCI_LINT_VERSION }}
+        run: curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $(go env GOPATH)/bin ${GOLANGCI_LINT_VERSION}
+
+      - name: Check and get dependencies
+        run: |
+          go mod download
+          go mod tidy
+          git diff --exit-code go.mod
+          git diff --exit-code go.sum
+
+      - name: Build
+        run: make

.github/workflows/release.yml

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+name: Release
+
+on:
+  push:
+    tags:
+        - "v*.*.*"
+
+jobs:
+  main:
+    name: Release process
+    runs-on: ubuntu-latest
+    env:
+      GO_VERSION: 1.21
+
+    steps:
+      # https://github.com/marketplace/actions/checkout
+      - name: Check out code
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      # https://github.com/marketplace/actions/setup-go-environment
+      - name: Set up Go ${{ env.GO_VERSION }}
+        uses: actions/setup-go@v2
+        with:
+          go-version: ${{ env.GO_VERSION }}
+
+      - name: Run GoReleaser
+        uses: goreleaser/goreleaser-action@v4
+        with:
+          version: latest
+          args: release --clean --timeout=10m
+        env:
+          GITHUB_TOKEN: ${{ secrets.GH_TOKEN_REPO }}

.gitignore

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+.gitcookies
+.idea
+.vscode/
+dist/
+builds/
+*.wasm

.golangci.yml

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+run:
+  timeout: 10m
+  skip-files: []
+
+linters-settings:
+  govet:
+    check-shadowing: true
+  gocyclo:
+    min-complexity: 12
+  maligned:
+    suggest-new: true
+  goconst:
+    min-len: 3
+    min-occurrences: 3
+  funlen:
+    lines: -1
+    statements: 50
+  misspell:
+    locale: US
+  depguard:
+    rules:
+      main:
+        deny:
+          - pkg: "github.com/instana/testify"
+            desc: not allowed
+          - pkg: "github.com/pkg/errors"
+            desc: Should be replaced by standard lib errors package
+  tagalign:
+    align: false
+    order:
+      - xml
+      - json
+      - yaml
+      - yml
+      - toml
+      - mapstructure
+      - url
+  godox:
+    keywords:
+      - FIXME
+  gocritic:
+    enabled-tags:
+      - diagnostic
+      - style
+      - performance
+    disabled-checks:
+      - paramTypeCombine # already handle by gofumpt.extra-rules
+      - whyNoLint # already handle by nonolint
+      - unnamedResult
+      - hugeParam
+      - sloppyReassign
+      - rangeValCopy
+      - octalLiteral
+      - ptrToRefParam
+      - appendAssign
+      - ruleguard
+      - httpNoBody
+      - exposedSyncMutex
+  revive:
+    rules:
+      - name: struct-tag
+      - name: blank-imports
+      - name: context-as-argument
+      - name: context-keys-type
+      - name: dot-imports
+      - name: error-return
+      - name: error-strings
+      - name: error-naming
+      - name: exported
+        disabled: true
+      - name: if-return
+      - name: increment-decrement
+      - name: var-naming
+      - name: var-declaration
+      - name: package-comments
+        disabled: true
+      - name: range
+      - name: receiver-naming
+      - name: time-naming
+      - name: unexported-return
+      - name: indent-error-flow
+      - name: errorf
+      - name: empty-block
+      - name: superfluous-else
+      - name: unused-parameter
+        disabled: true
+      - name: unreachable-code
+      - name: redefines-builtin-id
+  testifylint:
+    enable:
+      - bool-compare
+      - compares
+      - empty
+      - error-is-as
+      - error-nil
+      - expected-actual
+      - float-compare
+      - len
+      - suite-dont-use-pkg
+      - suite-extra-assert-call
+      - suite-thelper
+
+linters:
+  enable-all: true
+  disable:
+    - deadcode # deprecated
+    - exhaustivestruct # deprecated
+    - golint # deprecated
+    - ifshort # deprecated
+    - interfacer # deprecated
+    - maligned # deprecated
+    - nosnakecase # deprecated
+    - scopelint # deprecated
+    - structcheck # deprecated
+    - varcheck # deprecated
+    - cyclop # duplicate of gocyclo
+    - sqlclosecheck # not relevant (SQL)
+    - rowserrcheck # not relevant (SQL)
+    - execinquery # not relevant (SQL)
+    - lll
+    - dupl # not relevant
+    - prealloc # too many false-positive
+    - bodyclose # too many false-positive
+    - gomnd
+    - testpackage # not relevant
+    - tparallel # not relevant
+    - paralleltest # not relevant
+    - nestif # too many false-positive
+    - wrapcheck
+    - goerr113 # not relevant
+    - nlreturn # not relevant
+    - wsl # not relevant
+    - exhaustive # not relevant
+    - exhaustruct # not relevant
+    - makezero # not relevant
+    - forbidigo
+    - varnamelen # not relevant
+    - nilnil # not relevant
+    - ireturn # not relevant
+    - contextcheck # too many false-positive
+    - noctx
+    - forcetypeassert
+    - errchkjson
+    - nonamedreturns
+    - gosmopolitan  # not relevant
+
+issues:
+  exclude-use-default: false
+  max-per-linter: 0
+  max-same-issues: 0
+  exclude:
+    - 'Error return value of .((os\.)?std(out|err)\..*|.*Close|.*Flush|os\.Remove(All)?|.*printf?|os\.(Un)?Setenv). is not checked'
+    - 'exported (type|method|function) (.+) should have comment or be unexported'
+    - 'ST1000: at least one file in a package should have a package comment'
+  exclude-rules:
+    - path: (.+)_test.go
+      linters:
+        - funlen
+        - goconst
+        - maintidx
+

.goreleaser.yml

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+project_name: plugindemowasm-http-call
+
+builds:
+  - binary: plugin.wasm
+    gobinary: go
+    no_unique_dist_dir: true
+    main: .
+    ldflags:
+      - ''
+    goos:
+      - wasip1
+    goarch:
+      - wasm
+
+changelog:
+  sort: asc
+  filters:
+    exclude:
+      - '^docs:'
+      - '^doc:'
+      - '^chore:'
+      - '^chore(deps):'
+      - '^test:'
+      - '^tests:'
+
+archives:
+  - id: plugindemowasm-http-call
+    name_template: '{{ .ProjectName }}_v{{ .Version }}'
+    format: zip
+    files:
+      - LICENSE
+      - .traefik.yml

.traefik.yml

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+displayName: Demo Plugin WASM with HTTP Call
+runtime: wasm
+type: middleware
+iconPath: .assets/icon.png
+
+summary: '[Demo WASM] Add WorldTime from api'
+
+testData:
+  HeaderName: X-World-Time
+  Timezone: Europe/Paris