generate json-schema dynamically in Go

internal/config/api.go

@@ -0,0 +1,28 @@
+package config
+
+import (
+	"encoding/json"
+
+	"github.com/google/jsonschema-go/jsonschema"
+)
+
+type ApiConfig struct {
+	Enabled bool `json:"enabled"`
+	Port    int  `json:"port"`
+}
+
+var ApiConfigSchema = jsonschema.Schema{
+	Type: "object",
+	Properties: map[string]*jsonschema.Schema{
+		"enabled": {
+			Type:        "boolean",
+			Description: "Whether the API server is enabled",
+			Default:     json.RawMessage(`false`),
+		},
+		"port": {
+			Type:        "integer",
+			Description: "Port for the API server to listen on",
+		},
+	},
+	Required: []string{"port"},
+}

internal/config/config.go

@@ -1,27 +1,28 @@
 package config
 
+import (
+	"github.com/google/jsonschema-go/jsonschema"
+)
+
 type Config struct {
 	Api     ApiConfig      `json:"api"`
 	Modules []ModuleConfig `json:"modules"`
 	Routes  []RouteConfig  `json:"routes"`
 }
 
-type ApiConfig struct {
-	Enabled bool `json:"enabled"`
-	Port    int  `json:"port"`
-}
-type ModuleConfig struct {
-	Id     string `json:"id"`
-	Type   string `json:"type"`
-	Params Params `json:"params,omitempty"`
-}
-
-type RouteConfig struct {
-	Input      string            `json:"input"`
-	Processors []ProcessorConfig `json:"processors"`
-}
-
-type ProcessorConfig struct {
-	Type   string `json:"type"`
-	Params Params `json:"params,omitempty"`
+var ConfigSchema = jsonschema.Schema{
+	Schema:      "https://json-schema.org/draft/2020-12/schema",
+	ID:          "https://showbridge.io/config.schema.json",
+	Title:       "Config",
+	Description: "showbridge configuration",
+	Type:        "object",
+	Properties: map[string]*jsonschema.Schema{
+		"api": &ApiConfigSchema,
+		"modules": {
+			Ref: "https://showbridge.io/modules.schema.json",
+		},
+		"routes": {
+			Ref: "https://showbridge.io/routes.schema.json",
+		},
+	},
 }

internal/config/module.go

@@ -0,0 +1,7 @@
+package config
+
+type ModuleConfig struct {
+	Id     string `json:"id"`
+	Type   string `json:"type"`
+	Params Params `json:"params,omitempty"`
+}

internal/config/processor.go

@@ -0,0 +1,6 @@
+package config
+
+type ProcessorConfig struct {
+	Type   string `json:"type"`
+	Params Params `json:"params,omitempty"`
+}

internal/config/route.go

@@ -0,0 +1,29 @@
+package config
+
+import "github.com/google/jsonschema-go/jsonschema"
+
+type RouteConfig struct {
+	Input      string            `json:"input"`
+	Processors []ProcessorConfig `json:"processors"`
+}
+
+var RoutesConfigSchema = jsonschema.Schema{
+	Schema:      "https://json-schema.org/draft/2020-12/schema",
+	ID:          "https://showbridge.io/routes.schema.json",
+	Title:       "Routes",
+	Description: "route configurations",
+	Type:        "array",
+	Items: &jsonschema.Schema{
+		Type: "object",
+		Properties: map[string]*jsonschema.Schema{
+			"input": {
+				Type:      "string",
+				MinLength: jsonschema.Ptr(1),
+			},
+			"processors": {
+				Ref: "https://showbridge.io/processors.schema.json",
+			},
+		},
+		Required: []string{"input"},
+	},
+}