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Support primitive type with format in response #1754

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10 changes: 9 additions & 1 deletion operation.go
Original file line number Diff line number Diff line change
Expand Up @@ -978,7 +978,15 @@ func (operation *Operation) parseAPIObjectSchema(commentLine, schemaType, refTyp

return spec.ArrayProperty(schema), nil
default:
return PrimitiveSchema(schemaType), nil
schema := PrimitiveSchema(schemaType)
if refType != schemaType {
//refer to https://swagger.io/specification/v2/#dataTypeFormat
if !validPrimitiveFormat[schemaType][refType] {
return nil, fmt.Errorf("invalid format %s of type %s", refType, schemaType)
}
schema.Format = refType
}
return schema, nil
}
}

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29 changes: 28 additions & 1 deletion operation_test.go
Original file line number Diff line number Diff line change
Expand Up @@ -234,7 +234,7 @@ func TestOperation_ParseResponseWithDefault(t *testing.T) {

assert.Equal(t, "An empty response", operation.Responses.Default.Description)

comment = `@Success 200,default {string} Response "A response"`
comment = `@Success 200,default {string} string "A response"`
operation = NewOperation(nil)

err = operation.ParseComment(comment, nil)
Expand All @@ -244,6 +244,33 @@ func TestOperation_ParseResponseWithDefault(t *testing.T) {
assert.Equal(t, "A response", operation.Responses.StatusCodeResponses[200].Description)
}

func TestParseResponsePrimitiveTypeWithFormat(t *testing.T) {
t.Parallel()

comment := `@Success 200 {integer} int16 "response with format"`
operation := NewOperation(nil)
err := operation.ParseComment(comment, nil)
assert.Error(t, err)

comment = `@Success 200 {integer} int32 "response with format"`
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This is a stupid corner case , Can you show me an example how you send and receive an int32 over an HTTP request ? :)
Usually the response is a JSON object, not a string value 🔦

operation = NewOperation(nil)
err = operation.ParseComment(comment, nil)
assert.NoError(t, err)
b, _ := json.MarshalIndent(operation, "", " ")
expected := `{
"responses": {
"200": {
"description": "response with format",
"schema": {
"type": "integer",
"format": "int32"
}
}
}
}`
assert.Equal(t, expected, string(b))
}

func TestParseResponseSuccessCommentWithEmptyResponse(t *testing.T) {
t.Parallel()

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6 changes: 6 additions & 0 deletions schema.go
Original file line number Diff line number Diff line change
Expand Up @@ -36,6 +36,12 @@ const (
IgnoreNameOverridePrefix = '$'
)

var validPrimitiveFormat = map[string]map[string]bool{
INTEGER: {"int32": true, "int64": true},
NUMBER: {"float": true, "double": true},
STRING: {"byte": true, "binary": true, "date": true, "date-time": true, "password": true},
}

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Why don't use the reverse way

var validPrimitiveFormat = map[string]string{
   "int32": "INTEGER"
   "int64": "INTEGER"
   "float": "NUMBER"
    ....
}

and the condition from operations.go

if !validPrimitiveFormat[refType] != schemaType {

// CheckSchemaType checks if typeName is not a name of primitive type.
func CheckSchemaType(typeName string) error {
if !IsPrimitiveType(typeName) {
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2 changes: 1 addition & 1 deletion testdata/struct_comment/api/api.go
Original file line number Diff line number Diff line change
Expand Up @@ -7,7 +7,7 @@ import "net/http"
// @Accept json
// @Produce json
// @Param post_id path int true "Some ID" Format(int64)
// @Success 200 {string} web.Post
// @Success 200 {string} string ""
// @Failure 400 {object} web.APIError "We need ID!!"
// @Failure 404 {object} web.APIError "Can not find ID"
// @Router /posts/{post_id} [get]
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