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feat: Support echo/v5 #2188

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Merged
mromaszewicz merged 7 commits into from
Mar 3, 2026
+1,509 −20
Merged

feat: Support echo/v5 #2188

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88b5978
feat: server code generation for echo/v5
jinuthankachan Jan 21, 2026
a598380
fix: rename PathParam to Param for echo/v5
DanDagadita Feb 1, 2026
2825d74
Merge branch 'main' into feat/echov5-support
jinuthankachan Mar 3, 2026
23e1bba
fix: missing parts for strict server (#9)
jinuthankachan Mar 3, 2026
0a35ba5
Clean up router imports
mromaszewicz Mar 3, 2026
a37f363
Add petstore-expanded/echo-v5 example
mromaszewicz Mar 3, 2026
8f3e91a
fix: skip echo-v5 example on Go < 1.25
mromaszewicz Mar 3, 2026
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Clean up router imports 
Instead of hardcoding each router's framework and strict middleware
imports directly in imports.tmpl with per-router conditional blocks,
compute them in Go code via GenerateOptions.RouterImports() and pass
them to the template as RouterImports. The template now uses a single
range loop over .RouterImports, making it straightforward to add new
routers without touching the template.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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@mromaszewicz @claude
mromaszewicz and claude committed Mar 3, 2026
commit 0a35ba538eef873dc6bdd9ef7e5b891eb4ccacad
2 changes: 2 additions & 0 deletions pkg/codegen/codegen.go
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Original file line number Diff line number Diff line change
Expand Up @@ -1038,12 +1038,14 @@ func GenerateImports(t *template.Template, externalImports []string, packageName
ModuleName string
Version string
AdditionalImports []AdditionalImport
RouterImports []AdditionalImport
}{
ExternalImports: externalImports,
PackageName: packageName,
ModuleName: modulePath,
Version: moduleVersion,
AdditionalImports: globalState.options.AdditionalImports,
RouterImports: globalState.options.Generate.RouterImports(),
}

return GenerateTemplates([]string{"imports.tmpl"}, t, context)
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48 changes: 48 additions & 0 deletions pkg/codegen/configuration.go
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Expand Up @@ -135,6 +135,54 @@ type GenerateOptions struct {
ServerURLs bool `yaml:"server-urls,omitempty"`
}

// RouterImports returns the framework-specific and strict middleware imports
// needed based on which server type is selected.
func (g GenerateOptions) RouterImports() []AdditionalImport {
var imports []AdditionalImport

switch {
case g.EchoServer:
imports = append(imports, AdditionalImport{Package: "github.com/labstack/echo/v4"})
if g.Strict {
imports = append(imports, AdditionalImport{Alias: "strictecho", Package: "github.com/oapi-codegen/runtime/strictmiddleware/echo"})
}
case g.Echo5Server:
imports = append(imports, AdditionalImport{Package: "github.com/labstack/echo/v5"})
if g.Strict {
imports = append(imports, AdditionalImport{Alias: "strictecho5", Package: "github.com/oapi-codegen/runtime/strictmiddleware/echo/v5"})
}
case g.ChiServer:
imports = append(imports, AdditionalImport{Package: "github.com/go-chi/chi/v5"})
if g.Strict {
imports = append(imports, AdditionalImport{Alias: "strictnethttp", Package: "github.com/oapi-codegen/runtime/strictmiddleware/nethttp"})
}
case g.GinServer:
imports = append(imports, AdditionalImport{Package: "github.com/gin-gonic/gin"})
if g.Strict {
imports = append(imports, AdditionalImport{Alias: "strictgin", Package: "github.com/oapi-codegen/runtime/strictmiddleware/gin"})
}
case g.GorillaServer:
imports = append(imports, AdditionalImport{Package: "github.com/gorilla/mux"})
if g.Strict {
imports = append(imports, AdditionalImport{Alias: "strictnethttp", Package: "github.com/oapi-codegen/runtime/strictmiddleware/nethttp"})
}
case g.FiberServer:
imports = append(imports, AdditionalImport{Package: "github.com/gofiber/fiber/v2"})
case g.IrisServer:
imports = append(imports, AdditionalImport{Package: "github.com/kataras/iris/v12"})
imports = append(imports, AdditionalImport{Package: "github.com/kataras/iris/v12/core/router"})
if g.Strict {
imports = append(imports, AdditionalImport{Alias: "strictiris", Package: "github.com/oapi-codegen/runtime/strictmiddleware/iris"})
}
case g.StdHTTPServer:
if g.Strict {
imports = append(imports, AdditionalImport{Alias: "strictnethttp", Package: "github.com/oapi-codegen/runtime/strictmiddleware/nethttp"})
}
}

return imports
}

func (oo GenerateOptions) Validate() map[string]string {
return nil
}
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30 changes: 3 additions & 27 deletions pkg/codegen/templates/imports.tmpl
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Original file line number Diff line number Diff line change
Expand Up @@ -28,35 +28,11 @@ import (

"github.com/oapi-codegen/runtime"
"github.com/oapi-codegen/nullable"
strictecho5 "github.com/oapi-codegen/runtime/strictmiddleware/echo/v5"
strictecho "github.com/oapi-codegen/runtime/strictmiddleware/echo"
strictgin "github.com/oapi-codegen/runtime/strictmiddleware/gin"
strictiris "github.com/oapi-codegen/runtime/strictmiddleware/iris"
strictnethttp "github.com/oapi-codegen/runtime/strictmiddleware/nethttp"
openapi_types "github.com/oapi-codegen/runtime/types"
"github.com/getkin/kin-openapi/openapi3"
{{- if opts.Generate.ChiServer }}
"github.com/go-chi/chi/v5"
{{- end }}
{{- if opts.Generate.EchoServer }}
"github.com/labstack/echo/v4"
{{- end }}
{{- if opts.Generate.Echo5Server }}
"github.com/labstack/echo/v5"
{{- end }}
{{- if opts.Generate.GinServer }}
"github.com/gin-gonic/gin"
{{- end }}
{{- if opts.Generate.FiberServer }}
"github.com/gofiber/fiber/v2"
{{- end }}
{{- if opts.Generate.IrisServer }}
"github.com/kataras/iris/v12"
"github.com/kataras/iris/v12/core/router"
{{- end }}
{{- if opts.Generate.GorillaServer }}
"github.com/gorilla/mux"
{{- end }}
{{- range .RouterImports}}
{{if .Alias}}{{.Alias}} {{end}}"{{.Package}}"
{{- end}}
{{- range .ExternalImports}}
{{ . }}
{{- end}}
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