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77 lines
1.8 KiB
77 lines
1.8 KiB
package main
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import (
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"context"
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"log"
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"net/http"
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pb "github.com/go-kratos/kratos/examples/helloworld/helloworld"
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"github.com/go-kratos/kratos/v2/errors"
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"github.com/go-kratos/kratos/v2/middleware"
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"github.com/go-kratos/kratos/v2/middleware/recovery"
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"github.com/go-kratos/kratos/v2/middleware/status"
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transgrpc "github.com/go-kratos/kratos/v2/transport/grpc"
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transhttp "github.com/go-kratos/kratos/v2/transport/http"
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)
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func main() {
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callHTTP()
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callGRPC()
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}
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func callHTTP() {
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client, err := transhttp.NewClient(context.Background())
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if err != nil {
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log.Fatal(err)
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}
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req, err := http.NewRequest("GET", "http://127.0.0.1:8000/helloworld/kratos", nil)
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if err != nil {
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log.Fatal(err)
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}
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reply := new(pb.HelloReply)
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if err := transhttp.Do(client, req, reply); err != nil {
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log.Fatal(err)
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}
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log.Printf("[http] SayHello %s\n", reply.Message)
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// returns error
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req, err = http.NewRequest("GET", "http://127.0.0.1:8000/helloworld/error", nil)
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if err != nil {
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log.Fatal(err)
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}
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if err := transhttp.Do(client, req, reply); err != nil {
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log.Printf("[http] SayHello error is invalid argument: %v\n", err)
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}
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}
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func callGRPC() {
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conn, err := transgrpc.DialInsecure(
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context.Background(),
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transgrpc.WithEndpoint("127.0.0.1:9000"),
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transgrpc.WithMiddleware(
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middleware.Chain(
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status.Client(),
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recovery.Recovery(),
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),
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),
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)
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if err != nil {
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log.Fatal(err)
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}
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client := pb.NewGreeterClient(conn)
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reply, err := client.SayHello(context.Background(), &pb.HelloRequest{Name: "kratos"})
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if err != nil {
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log.Fatal(err)
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}
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log.Printf("[grpc] SayHello %+v\n", reply)
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// returns error
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_, err = client.SayHello(context.Background(), &pb.HelloRequest{Name: "error"})
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if err != nil {
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log.Printf("[grpc] SayHello error: %v\n", err)
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}
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if errors.IsInvalidArgument(err) {
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log.Printf("[grpc] SayHello error is invalid argument: %v\n", err)
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}
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}
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