generate operation id

- operationId: combination of service name and method name to make it unique

Author: LukasJenicek

_examples/openapi.gen.yaml

@@ -497,10 +497,10 @@ components:
           description: '[]User'
           items:
             $ref: '#/components/schemas/User'
-
 paths:
   /rpc/ExampleService/Ping:
     post:
+      operationId: ExampleServicePing
       tags: ["ExampleService"]
       summary: "Deprecated."
       deprecated: true
@@ -542,6 +542,7 @@ paths:
                 - $ref: '#/components/schemas/ErrorDatabaseDown'
   /rpc/ExampleService/GetUser:
     post:
+      operationId: ExampleServiceGetUser
       tags: ["ExampleService"]
       summary: "Deprecated: Use GetUserV2 instead."
       deprecated: true
@@ -585,6 +586,7 @@ paths:
                 - $ref: '#/components/schemas/ErrorDatabaseDown'
   /rpc/ExampleService/GetUserV2:
     post:
+      operationId: ExampleServiceGetUserV2
       tags: ["ExampleService"]
       summary: "GetUserV2 returns user based on given userID."
       security:
@@ -629,6 +631,7 @@ paths:
                 - $ref: '#/components/schemas/ErrorDatabaseDown'
   /rpc/ExampleService/FindUser:
     post:
+      operationId: ExampleServiceFindUser
       tags: ["ExampleService"]
       summary: "FindUser searches for a user using the given search filter."
       security:
@@ -676,6 +679,7 @@ paths:
                 - $ref: '#/components/schemas/ErrorDatabaseDown'
   /rpc/ExampleService/ListUsers:
     post:
+      operationId: ExampleServiceListUsers
       tags: ["ExampleService"]
       summary: "ListUsers returns all users."
       security:
@@ -718,6 +722,7 @@ paths:
                 - $ref: '#/components/schemas/ErrorDatabaseDown'
   /rpc/ExampleService/GetComplex:
     post:
+      operationId: ExampleServiceGetComplex
       tags: ["ExampleService"]
       summary: ""
       requestBody:
@@ -758,6 +763,7 @@ paths:
                 - $ref: '#/components/schemas/ErrorDatabaseDown'
   /rpc/ExampleService/GetAllOptional:
     post:
+      operationId: ExampleServiceGetAllOptional
       tags: ["ExampleService"]
       summary: ""
       requestBody:
@@ -798,6 +804,7 @@ paths:
                 - $ref: '#/components/schemas/ErrorDatabaseDown'
   /rpc/AdminService/ListUsers:
     post:
+      operationId: AdminServiceListUsers
       tags: ["AdminService"]
       summary: ""
       security:

main.go.tmpl

@@ -134,6 +134,7 @@ paths:
   {{- $deprecated := index $method.Annotations "deprecated" }}
   /rpc/{{$service.Name}}/{{$method.Name}}:
     post:
+      operationId: {{$service.Name}}{{$method.Name}}
       tags: ["{{$service.Name}}"]
       summary: {{ if $deprecated }}{{ if $deprecated.Value }}{{printf "%q" (print "Deprecated: " $deprecated.Value)}}{{else}}"Deprecated."{{end}}{{else if gt (len $method.Comments) 0}}{{printf "%q" (index $method.Comments 0)}}{{else}}""{{end}}
       {{- if $deprecated }}