http://s3wf.com @jeffotoni Meetup Golang Campinas Jefferson Otoni RPC, gRPC & Go 

Senior Software Engineer Jefferson Otoni Lima 

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@jeffotoni Comunidade Telegram https://t.me/go_br https://t.me/go_bh https://t.me/golangcwb Slack https://gophers.slack.com (members >~45k) GopherCon Brasil 2020 https://2020.gopherconbr.org Wiki Conferencias https://github.com/golang/go/wiki/Conferences Meetup https://www.meetup.com/go-belo-horizonte https://www.meetup.com/pt-BR/golangbr https://www.meetup.com/pt-BR/Women-Who-Go-Sampa https://www.meetup.com/pt-BR/Golang-Campinas/ https://www.meetup.com/pt-BR/golang-poa/ https://www.meetup.com/pt-BR/GolangCWB/ 

@jeffotoni https://golang.org https://golang.org/doc/effective_go.html https://golang.org/ref/spec https://golang.org/doc https://tour.golang.org/welcome/1 

@jeffotoni WEB Protocolos 

@jeffotoni HTTP/1.1 TCP TCP UDP protocolos HTTP/2.0 SPDY HTTP/3 QUIC SPDY QUIC 

@jeffotoni HTTP Versões HTTP/0.9 1991; one method HTTP/1.0 1996; headers, caching, languages HTTP/1.1 1999; keepalives, upgrades, ranges, hosts SPDY 2009; one tcp, gzip headers, flow control QUIC 2012; UDP, handshake, baixa latência HTTP/2.0 2015; HPACK, priorities, server push HTTP/3.0 2019; no head-of-line blocking,TLS 1.3 

@jeffotoni HTTP/3.0 Um bolo de camada HTTP / 3 Fonte: https://blog.cloudflare.com/http-3-from-root-to-tip/ 

@jeffotoni HTTP/2.0 . Multiplexing . Bidirectional Streaming . HTTPS . SSL/TLS . Token auth . Channel credentials . Performance 

@jeffotoni HTTP/3.0 HTTP/2 vs HTTP/3 Fonte: https://kinsta.com/pt/blog/http3 

@jeffotoni 

HTTP/2.0 $ curl -I -L https://app.guula.com.br HTTP/2 200 server: nginx/1.14.0 (Ubuntu) date: Wed, 22 Jul 2020 17:33:15 GMT content-type: text/html; charset=utf-8 vary: Origin @jeffotoni 

HTTP/2.0 @jeffotoni 

@jeffotoni 

@jeffotoni HTTP/3.0 

HTTP/3.0 

Back-end 

serviços/protocolos @jeffotoni RPC TCP/UDP/http REST http SOAP http xml-RPC http RMI tcp Representational State Transfer Remote Procedure Call Simple Object Access Protocol Remote Method Invocation webSocket http/tcp comunicação bidirecional por canais full-duplex e usa o schema: ws:// ou wss:// 

(Representational State Transfer) rEST 

/auth POST /user GET /user/{uuid} GET /user/{uuid} DELETE /user/{uuid} PUT 1M requests/s 50k requests/s 100k requests/s 60k requests/s 1k requests/s service 1 service 2 service 3 service 4 service 5 

@jeffotoni Api rEST em Go - Endpoints - Middleware - Instrumentar - Dockerfile - Deploy 

Serializion 

. encoding/json . encoding/xml . github.com/tinylib/msgp . github.com/golang/protobuf . github.com/gogo/protobuf . Apache/Thrift . Apache/Avro . gotiny . vmihailenco/msgpack/v4 Alguns tipos de serializações 

Serializion MessagePack 

@jeffotoni Api rEST em Go - Endpoints - Middleware - Instrumentar - Dockerfile - Deploy 

/user/{uuid} GET /user/{uuid} PUT 100k requests/s 1k requests/s service 3 service 5 HTTP + JSON 

service3 service5 HTTP rEST rEST CLIENT 

RPC (Remote Procedure Call) procedimentos remotos como se fossem chamadas locais 

(Remote Procedure Call) RPC server 

/user/{uuid} GET /user/{uuid} PUT 100k requests/s 1k requests/s service 3 service 5 RPC RPC SERVER RPC CLIENT 

RPC server Go - Struct Args - Struct User - Metodo Get @jeffotoni 

RPC server Go - Register - Metodos - Instrumentar - Dockerfile - Deploy @jeffotoni 

RPC server Go - Register - Metodos - Instrumentar @jeffotoni 

(Remote Procedure Call) RPC client 

RPC client Go - Conexao - Args/param - Reply/Retorno - Dockerfile - Deploy @jeffotoni 

Service3 Service5 TCP RPC RPC SERVER HTTP rEST RPC CLIENT 

nível de modularidade microservice 

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gRPC 

Protocol Buffers protobuf-compiler 

Protocol Buffers $ protoc --go_out=. produto.proto 

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Metodos 

Go Marshal 

Go Unmarshal 

/user/{uuid} GET /user/{uuid} PUT 100k requests/s 1k requests/s service 3 service 5 gRPC gRPC SERVER gRPC CLIENT 

referências https://jobs.kenoby.com/engineering https://golang.org https://grpc.io/docs/tutorials/basic/go https://github.com/grpc/grpc-go/tree/master/examples https://developers.google.com/protocol-buffers/docs/gotutorial https://github.com/uw-labs/bloomrpc (curl ou posltman para grpc) https://itnext.io/learning-go-mongodb-crud-with-grpc-98e425aeaae6 https://encurtador.com.br/fHKSU https://encurtador.com.br/eqvJ2 https://gokit.io/examples/ https://github.com/smallnest/gosercomp https://easyengine.io/tutorials/nginx/configuring-http-2-server-push https://www.digitalocean.com/community/tutorials/http-1-1-vs-http-2-what-s-the-difference https://medium.com/@factoryhr/http-2-the-difference-between-http-1-1-benefits-and-how-to-use-it-38094fa0e95b https://blog.cloudflare.com/how-to-test-http-3-and-quic-with-firefox-nightly/ https://blog.cloudflare.com/http-3-vs-http-2 https://kinsta.com/blog/http3 https://blog.cloudflare.com/http3-the-past-present-and-future links 

Thanks := &Obrigado{...} Obrigado... github.com/jeffotoni instagram.com/jeffotoni https://t.me/devopsbh https://t.me/go_br https://t.me/awsbrasil linkedin.com/in/jeffotoni/