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43 lines
2.0 KiB
JSON
43 lines
2.0 KiB
JSON
// Licensed to the Apache Software Foundation (ASF) under one or more
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// contributor license agreements. See the NOTICE file distributed with
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// this work for additional information regarding copyright ownership.
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// The ASF licenses this file to You under the Apache License, Version 2.0
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// (the "License"); you may not use this file except in compliance with
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// the License. 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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"type": "header",
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"name": "RequestHeader",
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// Version 0 of the RequestHeader is only used by v0 of ControlledShutdownRequest.
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//
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// Version 1 is the first version with ClientId.
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//
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// Version 2 is the first flexible version.
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"validVersions": "0-2",
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"flexibleVersions": "2+",
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"fields": [
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{ "name": "RequestApiKey", "type": "int16", "versions": "0+",
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"about": "The API key of this request." },
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{ "name": "RequestApiVersion", "type": "int16", "versions": "0+",
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"about": "The API version of this request." },
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{ "name": "CorrelationId", "type": "int32", "versions": "0+",
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"about": "The correlation ID of this request." },
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// The ClientId string must be serialized with the old-style two-byte length prefix.
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// The reason is that older brokers must be able to read the request header for any
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// ApiVersionsRequest, even if it is from a newer version.
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// Since the client is sending the ApiVersionsRequest in order to discover what
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// versions are supported, the client does not know the best version to use.
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{ "name": "ClientId", "type": "string", "versions": "1+", "nullableVersions": "1+", "ignorable": true,
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"flexibleVersions": "none", "about": "The client ID string." }
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]
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}
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