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48 lines
1.4 KiB
Go
48 lines
1.4 KiB
Go
/*
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* Copyright 2017-2019 Kopano and its licensors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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package utils
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import (
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"encoding/json"
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"net/http"
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)
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const (
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defaultJSONContentType = "application/json; encoding=utf-8"
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)
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// WriteJSON marshals the provided data as JSON and writes it to the provided
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// http.ResponseWriter using the provided HTTP status code and content-type. the
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// nature of this function is that it always writes a HTTP response header. Thus
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// it makes no sense to write another header on error. Resulting errors should
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// be logged and the connection should be closes as it is non-functional.
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func WriteJSON(rw http.ResponseWriter, code int, data interface{}, contentType string) error {
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if contentType == "" {
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rw.Header().Set("Content-Type", defaultJSONContentType)
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} else {
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rw.Header().Set("content-Type", contentType)
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}
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rw.WriteHeader(code)
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enc := json.NewEncoder(rw)
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enc.SetIndent("", " ")
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return enc.Encode(data)
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}
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