Adding the Swagger validator for both YAML and JSON formatted specifi…

…cations.

src/content/handler/swagger/2/index.ts

@@ -0,0 +1,46 @@
+import * as SwaggerParser from 'swagger-parser'
+import * as YAML from 'yamljs'
+
+export function validateYaml (content: string): Promise<void> {
+  return Promise
+  .resolve()
+  .then(function () {
+    let data: any
+    try {
+      data = YAML.parse(content)
+    } catch (e) {
+      throw new Error('Unable to parse YAML string into object.')
+    }
+    return SwaggerParser.validate(data)
+  })
+  .then(function (api) {
+    // swagger specification is valid
+    return
+  })
+  .catch(function (error) {
+    console.error(error)
+    throw new Error('Swagger is invalid!')
+  })
+}
+
+export function validateJson (content: string): Promise<void> {
+  return Promise
+  .resolve()
+  .then(function () {
+    let data: any
+    try {
+      data = JSON.parse(content)
+    } catch (e) {
+      throw new Error('Unable to parse JSON string into object.')
+    }
+    return SwaggerParser.validate(data)
+  })
+  .then(function (api) {
+    // swagger specification is valid
+    return
+  })
+  .catch(function (error) {
+    console.error(error)
+    throw new Error('Swagger is invalid!')
+  })
+}