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protobuf (Protocol buffers) is a cross-platform, cross-language, scalable data transmission and storage protocol produced by Google. It is an efficient data compression One of the encoding methods.
Protocol buffers are flexible and efficient in serializing data. Compared to XML, Protocol buffers are smaller, faster, and simpler. Once the data structure of the data to be processed is defined, the code generation tool of Protocol buffers can be used to generate the relevant code. Data structures can even be updated without redeploying the program. Use Protobuf to describe your data structure once, and your structured data can be easily read and written in a variety of different languages or from a variety of different data streams.
Protocol buffers are very suitable for data storage or RPC data exchange formats. A language-independent, platform-independent, and extensible serialized structured data format that can be used in communication protocols, data storage and other fields.
In addition, Protobuf is widely used in microservices due to its efficient data exchange efficiency on the intranet. Google's open source framework grpc is built based on this.
Since protobuf does not natively support php, if php uses pb, you need to install the corresponding extension.
pecl install protobuf
The protoc
compiler is required in the environment. Download and install method:
$ wget https://github.com/google/protobuf/releases/download/v2.5.0/protobuf-2.5.0.tar.gz $ tar zxvf protobuf-2.5.0.tar.gz $ cd protobuf-2.5.0 $ ./configure --prefix=/usr/local/protobuf $ sudo make $ sudo make install
Verify that the installation is successful:
$ /usr/local/protobuf/bin/protoc --version libprotoc 2.5.0
php-protobuf is installed successfully
php --ri protobuf
lumen new rpc
lumen new rpc
The command is equivalent tocomposer create-project laravel/lumen rpc
composer require google/protobuf
Add classmap under composer.json
:
{ "classmap": [ "protobuf/" ] }
ok, the preparations are all done.
Create a protobuf folder in the code directorymkdir protobuf
Enter the directory and create a filesearchRequest .proto
syntax = "proto3"; message SearchRequest { string query = 1; int32 page_number = 2; int32 result_per_page = 3; enum Corpus { UNIVERSAL = 0; WEB = 1; IMAGES = 2; LOCAL = 3; NEWS = 4; PRODUCTS = 5; VIDEO = 6; } Corpus corpus = 4; }
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