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Add JetStream request-reply and provisioner examples
Signed-off-by: Byron Ruth <[email protected]>
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,14 @@ | ||
| module github.com/bruth/nats-by-example/examples/jetstream/request-reply/go | ||
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| go 1.19 | ||
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| require github.com/nats-io/nats.go v1.18.1-0.20221015130652-e09f13da2bd8 | ||
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| require ( | ||
| github.com/golang/protobuf v1.5.2 // indirect | ||
| github.com/nats-io/nats-server/v2 v2.9.3 // indirect | ||
| github.com/nats-io/nkeys v0.3.0 // indirect | ||
| github.com/nats-io/nuid v1.0.1 // indirect | ||
| golang.org/x/crypto v0.0.0-20220926161630-eccd6366d1be // indirect | ||
| google.golang.org/protobuf v1.28.1 // indirect | ||
| ) |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,30 @@ | ||
| github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk= | ||
| github.com/golang/protobuf v1.5.2 h1:ROPKBNFfQgOUMifHyP+KYbvpjbdoFNs+aK7DXlji0Tw= | ||
| github.com/golang/protobuf v1.5.2/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY= | ||
| github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE= | ||
| github.com/klauspost/compress v1.15.11 h1:Lcadnb3RKGin4FYM/orgq0qde+nc15E5Cbqg4B9Sx9c= | ||
| github.com/minio/highwayhash v1.0.2 h1:Aak5U0nElisjDCfPSG79Tgzkn2gl66NxOMspRrKnA/g= | ||
| github.com/nats-io/jwt/v2 v2.3.0 h1:z2mA1a7tIf5ShggOFlR1oBPgd6hGqcDYsISxZByUzdI= | ||
| github.com/nats-io/nats-server/v2 v2.9.3 h1:HrfzA7G9LNetKkm1z+jU/e9kuAe+E6uaBuuq9EB5sQQ= | ||
| github.com/nats-io/nats-server/v2 v2.9.3/go.mod h1:4sq8wvrpbvSzL1n3ZfEYnH4qeUuIl5W990j3kw13rRk= | ||
| github.com/nats-io/nats.go v1.18.1-0.20221015130652-e09f13da2bd8 h1:2qzLrWyP1GFlcIegd5RJlGV0NQyB/yZDhrRL3M+GNG8= | ||
| github.com/nats-io/nats.go v1.18.1-0.20221015130652-e09f13da2bd8/go.mod h1:BPko4oXsySz4aSWeFgOHLZs3G4Jq4ZAyE6/zMCxRT6w= | ||
| github.com/nats-io/nkeys v0.3.0 h1:cgM5tL53EvYRU+2YLXIK0G2mJtK12Ft9oeooSZMA2G8= | ||
| github.com/nats-io/nkeys v0.3.0/go.mod h1:gvUNGjVcM2IPr5rCsRsC6Wb3Hr2CQAm08dsxtV6A5y4= | ||
| github.com/nats-io/nuid v1.0.1 h1:5iA8DT8V7q8WK2EScv2padNa/rTESc1KdnPw4TC2paw= | ||
| github.com/nats-io/nuid v1.0.1/go.mod h1:19wcPz3Ph3q0Jbyiqsd0kePYG7A95tJPxeL+1OSON2c= | ||
| golang.org/x/crypto v0.0.0-20210314154223-e6e6c4f2bb5b/go.mod h1:T9bdIzuCu7OtxOm1hfPfRQxPLYneinmdGuTeoZ9dtd4= | ||
| golang.org/x/crypto v0.0.0-20220926161630-eccd6366d1be h1:fmw3UbQh+nxngCAHrDCCztao/kbYFnWjoqop8dHx05A= | ||
| golang.org/x/crypto v0.0.0-20220926161630-eccd6366d1be/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4= | ||
| golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg= | ||
| golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= | ||
| golang.org/x/sys v0.0.0-20220928140112-f11e5e49a4ec h1:BkDtF2Ih9xZ7le9ndzTA7KJow28VbQW3odyk/8drmuI= | ||
| golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo= | ||
| golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ= | ||
| golang.org/x/time v0.0.0-20220922220347-f3bd1da661af h1:Yx9k8YCG3dvF87UAn2tu2HQLf2dt/eR1bXxpLMWeH+Y= | ||
| golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ= | ||
| golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= | ||
| google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw= | ||
| google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc= | ||
| google.golang.org/protobuf v1.28.1 h1:d0NfwRgPtno5B1Wa6L2DAG+KivqkdutMf1UhdNx175w= | ||
| google.golang.org/protobuf v1.28.1/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I= |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,56 @@ | ||
| package main | ||
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| import ( | ||
| "fmt" | ||
| "os" | ||
| "time" | ||
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| "github.com/nats-io/nats.go" | ||
| ) | ||
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| func main() { | ||
| natsURL := os.Getenv("NATS_URL") | ||
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| nc, _ := nats.Connect(natsURL) | ||
| defer nc.Drain() | ||
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| js, _ := nc.JetStream() | ||
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| // Create a [work-queue][wq] stream that will act as a buffer for requests. | ||
| js.AddStream(&nats.StreamConfig{ | ||
| Name: "REQUESTS", | ||
| Subjects: []string{"requests.*"}, | ||
| Retention: nats.WorkQueuePolicy, | ||
| }) | ||
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| // Create an ephemeral consumer + subscription responsible for replying. | ||
| sub, _ := js.Subscribe("requests.*", func(msg *nats.Msg) { | ||
| var r string | ||
| switch msg.Subject { | ||
| case "requests.order-sandwich": | ||
| r = "🥪" | ||
| case "requests.order-bagel": | ||
| r = "🥯" | ||
| case "requests.order-flatbread": | ||
| r = "🥙" | ||
| default: | ||
| return | ||
| } | ||
| msg.Respond([]byte(r)) | ||
| }) | ||
| defer sub.Drain() | ||
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| // Send some requests. | ||
| rep, _ := js.Request("requests.order-sandwich", nil, time.Second) | ||
| fmt.Println(string(rep.Data)) | ||
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| rep, _ = js.Request("requests.order-flatbread", nil, time.Second) | ||
| fmt.Println(string(rep.Data)) | ||
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| // If a request cannot be fulfilled, the message is terminated. | ||
| _, err := js.Request("requests.order-drink", nil, time.Second) | ||
| fmt.Printf("timeout? %v\n", err == nats.ErrTimeout) | ||
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| info, _ := js.StreamInfo("REQUESTS") | ||
| fmt.Printf("%d remaining in the stream\n", info.State.Msgs) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,14 @@ | ||
| module github.com/bruth/nats-by-example/examples/jetstream/request-reply/go | ||
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| go 1.19 | ||
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| require github.com/nats-io/nats.go v1.18.1-0.20221015130652-e09f13da2bd8 | ||
|
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| require ( | ||
| github.com/golang/protobuf v1.5.2 // indirect | ||
| github.com/nats-io/nats-server/v2 v2.9.3 // indirect | ||
| github.com/nats-io/nkeys v0.3.0 // indirect | ||
| github.com/nats-io/nuid v1.0.1 // indirect | ||
| golang.org/x/crypto v0.0.0-20220926161630-eccd6366d1be // indirect | ||
| google.golang.org/protobuf v1.28.1 // indirect | ||
| ) |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,32 @@ | ||
| github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk= | ||
| github.com/golang/protobuf v1.5.2 h1:ROPKBNFfQgOUMifHyP+KYbvpjbdoFNs+aK7DXlji0Tw= | ||
| github.com/golang/protobuf v1.5.2/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY= | ||
| github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE= | ||
| github.com/klauspost/compress v1.15.11 h1:Lcadnb3RKGin4FYM/orgq0qde+nc15E5Cbqg4B9Sx9c= | ||
| github.com/minio/highwayhash v1.0.2 h1:Aak5U0nElisjDCfPSG79Tgzkn2gl66NxOMspRrKnA/g= | ||
| github.com/nats-io/jwt/v2 v2.3.0 h1:z2mA1a7tIf5ShggOFlR1oBPgd6hGqcDYsISxZByUzdI= | ||
| github.com/nats-io/nats-server/v2 v2.9.3 h1:HrfzA7G9LNetKkm1z+jU/e9kuAe+E6uaBuuq9EB5sQQ= | ||
| github.com/nats-io/nats-server/v2 v2.9.3/go.mod h1:4sq8wvrpbvSzL1n3ZfEYnH4qeUuIl5W990j3kw13rRk= | ||
| github.com/nats-io/nats.go v1.18.0 h1:o480Ao6kuSSFyJO75rGTXCEPj7LGkY84C1Ye+Uhm4c0= | ||
| github.com/nats-io/nats.go v1.18.0/go.mod h1:BPko4oXsySz4aSWeFgOHLZs3G4Jq4ZAyE6/zMCxRT6w= | ||
| github.com/nats-io/nats.go v1.18.1-0.20221015130652-e09f13da2bd8 h1:2qzLrWyP1GFlcIegd5RJlGV0NQyB/yZDhrRL3M+GNG8= | ||
| github.com/nats-io/nats.go v1.18.1-0.20221015130652-e09f13da2bd8/go.mod h1:BPko4oXsySz4aSWeFgOHLZs3G4Jq4ZAyE6/zMCxRT6w= | ||
| github.com/nats-io/nkeys v0.3.0 h1:cgM5tL53EvYRU+2YLXIK0G2mJtK12Ft9oeooSZMA2G8= | ||
| github.com/nats-io/nkeys v0.3.0/go.mod h1:gvUNGjVcM2IPr5rCsRsC6Wb3Hr2CQAm08dsxtV6A5y4= | ||
| github.com/nats-io/nuid v1.0.1 h1:5iA8DT8V7q8WK2EScv2padNa/rTESc1KdnPw4TC2paw= | ||
| github.com/nats-io/nuid v1.0.1/go.mod h1:19wcPz3Ph3q0Jbyiqsd0kePYG7A95tJPxeL+1OSON2c= | ||
| golang.org/x/crypto v0.0.0-20210314154223-e6e6c4f2bb5b/go.mod h1:T9bdIzuCu7OtxOm1hfPfRQxPLYneinmdGuTeoZ9dtd4= | ||
| golang.org/x/crypto v0.0.0-20220926161630-eccd6366d1be h1:fmw3UbQh+nxngCAHrDCCztao/kbYFnWjoqop8dHx05A= | ||
| golang.org/x/crypto v0.0.0-20220926161630-eccd6366d1be/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4= | ||
| golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg= | ||
| golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= | ||
| golang.org/x/sys v0.0.0-20220928140112-f11e5e49a4ec h1:BkDtF2Ih9xZ7le9ndzTA7KJow28VbQW3odyk/8drmuI= | ||
| golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo= | ||
| golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ= | ||
| golang.org/x/time v0.0.0-20220922220347-f3bd1da661af h1:Yx9k8YCG3dvF87UAn2tu2HQLf2dt/eR1bXxpLMWeH+Y= | ||
| golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ= | ||
| golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= | ||
| google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw= | ||
| google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc= | ||
| google.golang.org/protobuf v1.28.1 h1:d0NfwRgPtno5B1Wa6L2DAG+KivqkdutMf1UhdNx175w= | ||
| google.golang.org/protobuf v1.28.1/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I= |
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