There is no official media type for protocol buffers registered with the IANA. #CONTENT_TYPE and #ALT_CONTENT_TYPE are some of the more popular choices being used
today, but other media types are also in use.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-28 UTC."],[],[],null,["# Package com.google.api.client.protobuf (2.0.0)\n\nVersion latestkeyboard_arrow_down\n\n- [2.0.0 (latest)](/java/docs/reference/google-http-client/latest/com.google.api.client.protobuf)\n- [1.47.1](/java/docs/reference/google-http-client/1.47.1/com.google.api.client.protobuf)\n- [1.46.3](/java/docs/reference/google-http-client/1.46.3/com.google.api.client.protobuf)\n- [1.45.3](/java/docs/reference/google-http-client/1.45.3/com.google.api.client.protobuf)\n- [1.44.2](/java/docs/reference/google-http-client/1.44.2/com.google.api.client.protobuf)\n- [1.43.2](/java/docs/reference/google-http-client/1.43.2/com.google.api.client.protobuf)\n- [1.42.3](/java/docs/reference/google-http-client/1.42.3/com.google.api.client.protobuf)\n- [1.41.8](/java/docs/reference/google-http-client/1.41.8/com.google.api.client.protobuf) \n[com.google.api.client.util.Beta](/java/docs/reference/google-http-client/latest/com.google.api.client.util.Beta) \n\nUtilities for the [Protocol Buffer](https://github.com/protocolbuffers/protobuf)\nformat.\n\nClasses\n-------\n\n### [ProtoObjectParser](/java/docs/reference/google-http-client/latest/com.google.api.client.protobuf.ProtoObjectParser)\n\n[Beta](/java/docs/reference/google-http-client/latest/com.google.api.client.util.Beta) \n\nParses protocol buffer HTTP response content into a protocol buffer message.\n\nImplementation is immutable and therefore thread-safe.\n\nData-classes are expected to extend MessageLite.\n\nAll Charset parameters are ignored for protocol buffers.\n\n### [ProtocolBuffers](/java/docs/reference/google-http-client/latest/com.google.api.client.protobuf.ProtocolBuffers)\n\n[Beta](/java/docs/reference/google-http-client/latest/com.google.api.client.util.Beta) \n\nUtilities for protocol buffers.\n\nThere is no official media type for protocol buffers registered with the [IANA](http://www.iana.org/assignments/media-types/application/index.html). [#CONTENT_TYPE](/java/docs/reference/google-http-client/latest/com.google.api.client.protobuf.ProtocolBuffers#com_google_api_client_protobuf_ProtocolBuffers_CONTENT_TYPE) and [#ALT_CONTENT_TYPE](/java/docs/reference/google-http-client/latest/com.google.api.client.protobuf.ProtocolBuffers#com_google_api_client_protobuf_ProtocolBuffers_ALT_CONTENT_TYPE) are some of the more popular choices being used\ntoday, but other media types are also in use."]]
