GRPC API

hello.proto

GreetRequest

Field	Type	Label	Description
name	string

GreetResponse

Field	Type	Label	Description
message	string

Hello

Method Name	Request Type	Response Type	Description
Greet	GreetRequest	GreetResponse

Scalar Value Types

.proto Type	Notes	C++	Java
double		double	double
float		float	float
int32	Uses variable-length encoding. Inefficient for encoding negative numbers – if your field is likely to have negative values, use sint32 instead.	int32	int
int64	Uses variable-length encoding. Inefficient for encoding negative numbers – if your field is likely to have negative values, use sint64 instead.	int64	long
uint32	Uses variable-length encoding.	uint32	int
uint64	Uses variable-length encoding.	uint64	long
sint32	Uses variable-length encoding. Signed int value. These more efficiently encode negative numbers than regular int32s.	int32	int
sint64	Uses variable-length encoding. Signed int value. These more efficiently encode negative numbers than regular int64s.	int64	long
fixed32	Always four bytes. More efficient than uint32 if values are often greater than 2^28.	uint32	int
fixed64	Always eight bytes. More efficient than uint64 if values are often greater than 2^56.	uint64	long
sfixed32	Always four bytes.	int32	int
sfixed64	Always eight bytes.	int64	long
bool		bool	boolean
string	A string must always contain UTF-8 encoded or 7-bit ASCII text.	string	String
bytes	May contain any arbitrary sequence of bytes.	string	ByteString