├── .gitignore
├── README.md
├── cmd
    ├── add-notrace
    │   └── main.go
    ├── add
    │   └── main.go
    ├── api-notrace
    │   └── main.go
    ├── api
    │   └── main.go
    └── subtract
    │   └── main.go
├── go.mod
├── go.sum
├── service
    ├── add-notrace
    │   └── add.go
    ├── add
    │   └── add.go
    ├── api-notrace
    │   └── main.go
    ├── api
    │   ├── api.go
    │   ├── calcRequest.go
    │   └── serviceConfig.go
    └── subtract
    │   └── subtract.go
├── services.yaml
└── web
    ├── client
        ├── index.html
        └── main.js
    ├── package-lock.json
    ├── package.json
    └── webpack.config.js


/.gitignore:
--------------------------------------------------------------------------------
1 | node_modules


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
 1 | # Calculator Microservice
 2 | 
 3 | This is a calculator application where individual operations are implemented as microservices in order to demonstrate tracing concepts.
 4 | 
 5 | ## Prerequisites
 6 | 
 7 | * Go (tested on 1.13)
 8 | * Node.JS
 9 | 
10 | ## Installation and Usage
11 | 
12 | Right now, each service runs as a separate process on your machine, so you'll need to have several console windows open.
13 | 
14 | **Client**
15 | 
16 | 1. Switch to the `web` directory.
17 | 2. Run `npm install`
18 | 3. Run `npm start`
19 | 
20 | **Server**
21 | 
22 | 1. From the root directory, run `go run cmd/<service>/main.go`, where `<service>` is the name of the service you wish to run (`api`, `add`, etc.)
23 | 
24 | ## Notes
25 | 
26 | By default, all of the trace data for each service will be output to standard output. In your browser, you'll need to open the JavaScript console to see it; For the Go applications, it'll be in your console.


--------------------------------------------------------------------------------
/cmd/add-notrace/main.go:
--------------------------------------------------------------------------------
1 | package main
2 | 
3 | import addnotrace "github.com/austinlparker/microcalc/service/add-notrace"
4 | 
5 | func main() {
6 | 	addnotrace.Run()
7 | }
8 | 


--------------------------------------------------------------------------------
/cmd/add/main.go:
--------------------------------------------------------------------------------
1 | package main
2 | 
3 | import "github.com/austinlparker/microcalc/service/add"
4 | 
5 | func main() {
6 | 	add.Run()
7 | }
8 | 


--------------------------------------------------------------------------------
/cmd/api-notrace/main.go:
--------------------------------------------------------------------------------
1 | package main
2 | 
3 | import apinotrace "github.com/austinlparker/microcalc/service/api-notrace"
4 | 
5 | func main() {
6 | 	apinotrace.Run()
7 | }
8 | 


--------------------------------------------------------------------------------
/cmd/api/main.go:
--------------------------------------------------------------------------------
1 | package main
2 | 
3 | import "github.com/austinlparker/microcalc/service/api"
4 | 
5 | func main() {
6 | 	api.Start()
7 | }
8 | 


--------------------------------------------------------------------------------
/cmd/subtract/main.go:
--------------------------------------------------------------------------------
1 | package main
2 | 
3 | import "github.com/austinlparker/microcalc/service/subtract"
4 | 
5 | func main() {
6 | 	subtract.Run()
7 | }
8 | 


--------------------------------------------------------------------------------
/go.mod:
--------------------------------------------------------------------------------
 1 | module github.com/austinlparker/microcalc
 2 | 
 3 | go 1.13
 4 | 
 5 | require (
 6 | 	github.com/kr/pretty v0.2.0 // indirect
 7 | 	go.opentelemetry.io/otel v0.2.0
 8 | 	google.golang.org/genproto v0.0.0-20191230161307-f3c370f40bfb // indirect
 9 | 	google.golang.org/grpc v1.26.0
10 | 	gopkg.in/yaml.v2 v2.2.7
11 | )
12 | 


--------------------------------------------------------------------------------
/go.sum:
--------------------------------------------------------------------------------
  1 | cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
  2 | github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
  3 | github.com/DataDog/sketches-go v0.0.0-20190923095040-43f19ad77ff7/go.mod h1:Q5DbzQ+3AkgGwymQO7aZFNP7ns2lZKGtvRBzRXfdi60=
  4 | github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
  5 | github.com/OpenPeeDeeP/depguard v1.0.1/go.mod h1:xsIw86fROiiwelg+jB2uM9PiKihMMmUx/1V+TNhjQvM=
  6 | github.com/StackExchange/wmi v0.0.0-20180116203802-5d049714c4a6/go.mod h1:3eOhrUMpNV+6aFIbp5/iudMxNCF27Vw2OZgy4xEx0Fg=
  7 | github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
  8 | github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
  9 | github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6/go.mod h1:grANhF5doyWs3UAsr3K4I6qtAmlQcZDesFNEHPZAzj8=
 10 | github.com/benbjohnson/clock v1.0.0/go.mod h1:bGMdMPoPVvcYyt1gHDf4J2KE153Yf9BuiUKYMaxlTDM=
 11 | github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
 12 | github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
 13 | github.com/bombsimon/wsl v1.2.5/go.mod h1:43lEF/i0kpXbLCeDXL9LMT8c92HyBywXb0AsgMHYngM=
 14 | github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
 15 | github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=
 16 | github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
 17 | github.com/coreos/bbolt v1.3.2/go.mod h1:iRUV2dpdMOn7Bo10OQBFzIJO9kkE559Wcmn+qkEiiKk=
 18 | github.com/coreos/etcd v3.3.10+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
 19 | github.com/coreos/go-etcd v2.0.0+incompatible/go.mod h1:Jez6KQU2B/sWsbdaef3ED8NzMklzPG4d5KIOhIy30Tk=
 20 | github.com/coreos/go-semver v0.2.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
 21 | github.com/coreos/go-systemd v0.0.0-20190321100706-95778dfbb74e/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
 22 | github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f/go.mod h1:E3G3o1h8I7cfcXa63jLwjI0eiQQMgzzUDFVpN/nH/eA=
 23 | github.com/cpuguy83/go-md2man v1.0.10/go.mod h1:SmD6nW6nTyfqj6ABTjUi3V3JVMnlJmwcJI5acqYI6dE=
 24 | github.com/creack/pty v1.1.7/go.mod h1:lj5s0c3V2DBrqTV7llrYr5NG6My20zk30Fl46Y7DoTY=
 25 | github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 26 | github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 27 | github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 28 | github.com/dgrijalva/jwt-go v3.2.0+incompatible/go.mod h1:E3ru+11k8xSBh+hMPgOLZmtrrCbhqsmaPHjLKYnJCaQ=
 29 | github.com/dgryski/go-sip13 v0.0.0-20181026042036-e10d5fee7954/go.mod h1:vAd38F8PWV+bWy6jNmig1y/TA+kYO4g3RSRF0IAv0no=
 30 | github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
 31 | github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
 32 | github.com/fatih/color v1.7.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5KwzbycvMj4=
 33 | github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
 34 | github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
 35 | github.com/go-critic/go-critic v0.3.5-0.20190904082202-d79a9f0c64db/go.mod h1:+sE8vrLDS2M0pZkBk0wy6+nLdKexVDrl/jBqQOTDThA=
 36 | github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
 37 | github.com/go-lintpack/lintpack v0.5.2/go.mod h1:NwZuYi2nUHho8XEIZ6SIxihrnPoqBTDqfpXvXAN0sXM=
 38 | github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
 39 | github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=
 40 | github.com/go-ole/go-ole v1.2.1/go.mod h1:7FAglXiTm7HKlQRDeOQ6ZNUHidzCWXuZWq/1dTyBNF8=
 41 | github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
 42 | github.com/go-toolsmith/astcast v1.0.0/go.mod h1:mt2OdQTeAQcY4DQgPSArJjHCcOwlX+Wl/kwN+LbLGQ4=
 43 | github.com/go-toolsmith/astcopy v1.0.0/go.mod h1:vrgyG+5Bxrnz4MZWPF+pI4R8h3qKRjjyvV/DSez4WVQ=
 44 | github.com/go-toolsmith/astequal v0.0.0-20180903214952-dcb477bfacd6/go.mod h1:H+xSiq0+LtiDC11+h1G32h7Of5O3CYFJ99GVbS5lDKY=
 45 | github.com/go-toolsmith/astequal v1.0.0/go.mod h1:H+xSiq0+LtiDC11+h1G32h7Of5O3CYFJ99GVbS5lDKY=
 46 | github.com/go-toolsmith/astfmt v0.0.0-20180903215011-8f8ee99c3086/go.mod h1:mP93XdblcopXwlyN4X4uodxXQhldPGZbcEJIimQHrkg=
 47 | github.com/go-toolsmith/astfmt v1.0.0/go.mod h1:cnWmsOAuq4jJY6Ct5YWlVLmcmLMn1JUPuQIHCY7CJDw=
 48 | github.com/go-toolsmith/astinfo v0.0.0-20180906194353-9809ff7efb21/go.mod h1:dDStQCHtmZpYOmjRP/8gHHnCCch3Zz3oEgCdZVdtweU=
 49 | github.com/go-toolsmith/astp v0.0.0-20180903215135-0af7e3c24f30/go.mod h1:SV2ur98SGypH1UjcPpCatrV5hPazG6+IfNHbkDXBRrk=
 50 | github.com/go-toolsmith/astp v1.0.0/go.mod h1:RSyrtpVlfTFGDYRbrjyWP1pYu//tSFcvdYrA8meBmLI=
 51 | github.com/go-toolsmith/pkgload v0.0.0-20181119091011-e9e65178eee8/go.mod h1:WoMrjiy4zvdS+Bg6z9jZH82QXwkcgCBX6nOfnmdaHks=
 52 | github.com/go-toolsmith/pkgload v1.0.0/go.mod h1:5eFArkbO80v7Z0kdngIxsRXRMTaX4Ilcwuh3clNrQJc=
 53 | github.com/go-toolsmith/strparse v1.0.0/go.mod h1:YI2nUKP9YGZnL/L1/DLFBfixrcjslWct4wyljWhSRy8=
 54 | github.com/go-toolsmith/typep v1.0.0/go.mod h1:JSQCQMUPdRlMZFswiq3TGpNp1GMktqkR2Ns5AIQkATU=
 55 | github.com/gobwas/glob v0.2.3/go.mod h1:d3Ez4x06l9bZtSvzIay5+Yzi0fmZzPgnTbPcKjJAkT8=
 56 | github.com/gofrs/flock v0.0.0-20190320160742-5135e617513b/go.mod h1:F1TvTiK9OcQqauNUHlbJvyl9Qa1QvF/gOUDKA14jxHU=
 57 | github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
 58 | github.com/gogo/protobuf v1.2.1/go.mod h1:hp+jE20tsWTFYpLwKvXlhS1hjn+gTNwPg2I6zVXpSg4=
 59 | github.com/gogo/protobuf v1.3.1/go.mod h1:SlYgWuQ5SjCEi6WLHjHCa1yvBfUnHcTbrrZtXPKa29o=
 60 | github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
 61 | github.com/golang/groupcache v0.0.0-20190129154638-5b532d6fd5ef/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
 62 | github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
 63 | github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 64 | github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 65 | github.com/golang/protobuf v1.3.2 h1:6nsPYzhq5kReh6QImI3k5qWzO4PEbvbIW2cwSfR/6xs=
 66 | github.com/golang/protobuf v1.3.2/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 67 | github.com/golangci/check v0.0.0-20180506172741-cfe4005ccda2/go.mod h1:k9Qvh+8juN+UKMCS/3jFtGICgW8O96FVaZsaxdzDkR4=
 68 | github.com/golangci/dupl v0.0.0-20180902072040-3e9179ac440a/go.mod h1:ryS0uhF+x9jgbj/N71xsEqODy9BN81/GonCZiOzirOk=
 69 | github.com/golangci/errcheck v0.0.0-20181223084120-ef45e06d44b6/go.mod h1:DbHgvLiFKX1Sh2T1w8Q/h4NAI8MHIpzCdnBUDTXU3I0=
 70 | github.com/golangci/go-misc v0.0.0-20180628070357-927a3d87b613/go.mod h1:SyvUF2NxV+sN8upjjeVYr5W7tyxaT1JVtvhKhOn2ii8=
 71 | github.com/golangci/goconst v0.0.0-20180610141641-041c5f2b40f3/go.mod h1:JXrF4TWy4tXYn62/9x8Wm/K/dm06p8tCKwFRDPZG/1o=
 72 | github.com/golangci/gocyclo v0.0.0-20180528134321-2becd97e67ee/go.mod h1:ozx7R9SIwqmqf5pRP90DhR2Oay2UIjGuKheCBCNwAYU=
 73 | github.com/golangci/gocyclo v0.0.0-20180528144436-0a533e8fa43d/go.mod h1:ozx7R9SIwqmqf5pRP90DhR2Oay2UIjGuKheCBCNwAYU=
 74 | github.com/golangci/gofmt v0.0.0-20190930125516-244bba706f1a/go.mod h1:9qCChq59u/eW8im404Q2WWTrnBUQKjpNYKMbU4M7EFU=
 75 | github.com/golangci/golangci-lint v1.21.0/go.mod h1:phxpHK52q7SE+5KpPnti4oZTdFCEsn/tKN+nFvCKXfk=
 76 | github.com/golangci/ineffassign v0.0.0-20190609212857-42439a7714cc/go.mod h1:e5tpTHCfVze+7EpLEozzMB3eafxo2KT5veNg1k6byQU=
 77 | github.com/golangci/lint-1 v0.0.0-20191013205115-297bf364a8e0/go.mod h1:66R6K6P6VWk9I95jvqGxkqJxVWGFy9XlDwLwVz1RCFg=
 78 | github.com/golangci/maligned v0.0.0-20180506175553-b1d89398deca/go.mod h1:tvlJhZqDe4LMs4ZHD0oMUlt9G2LWuDGoisJTBzLMV9o=
 79 | github.com/golangci/misspell v0.0.0-20180809174111-950f5d19e770/go.mod h1:dEbvlSfYbMQDtrpRMQU675gSDLDNa8sCPPChZ7PhiVA=
 80 | github.com/golangci/prealloc v0.0.0-20180630174525-215b22d4de21/go.mod h1:tf5+bzsHdTM0bsB7+8mt0GUMvjCgwLpTapNZHU8AajI=
 81 | github.com/golangci/revgrep v0.0.0-20180526074752-d9c87f5ffaf0/go.mod h1:qOQCunEYvmd/TLamH+7LlVccLvUH5kZNhbCgTHoBbp4=
 82 | github.com/golangci/revgrep v0.0.0-20180812185044-276a5c0a1039/go.mod h1:qOQCunEYvmd/TLamH+7LlVccLvUH5kZNhbCgTHoBbp4=
 83 | github.com/golangci/unconvert v0.0.0-20180507085042-28b1c447d1f4/go.mod h1:Izgrg8RkN3rCIMLGE9CyYmU9pY2Jer6DgANEnZ/L/cQ=
 84 | github.com/google/btree v1.0.0/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
 85 | github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
 86 | github.com/google/go-cmp v0.3.1 h1:Xye71clBPdm5HgqGwUkwhbynsUJZhDbS20FvLhQ2izg=
 87 | github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
 88 | github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
 89 | github.com/google/renameio v0.1.0/go.mod h1:KWCgfxg9yswjAJkECMjeO8J8rahYeXnNhOm40UhjYkI=
 90 | github.com/gorilla/websocket v1.4.0/go.mod h1:E7qHFY5m1UJ88s3WnNqhKjPHQ0heANvMoAMk2YaljkQ=
 91 | github.com/gostaticanalysis/analysisutil v0.0.0-20190318220348-4088753ea4d3/go.mod h1:eEOZF4jCKGi+aprrirO9e7WKB3beBRtWgqGunKl6pKE=
 92 | github.com/gostaticanalysis/analysisutil v0.0.3/go.mod h1:eEOZF4jCKGi+aprrirO9e7WKB3beBRtWgqGunKl6pKE=
 93 | github.com/grpc-ecosystem/go-grpc-middleware v1.0.0/go.mod h1:FiyG127CGDf3tlThmgyCl78X/SZQqEOJBCDaAfeWzPs=
 94 | github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0/go.mod h1:8NvIoxWQoOIhqOTXgfV/d3M/q6VIi02HzZEHgUlZvzk=
 95 | github.com/grpc-ecosystem/grpc-gateway v1.9.0/go.mod h1:vNeuVxBJEsws4ogUvrchl83t/GYV9WGTSLVdBhOQFDY=
 96 | github.com/hashicorp/hcl v1.0.0/go.mod h1:E5yfLk+7swimpb2L/Alb/PJmXilQ/rhwaUYs4T20WEQ=
 97 | github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpOxQnU=
 98 | github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANytuPF1OarO4DADm73n8=
 99 | github.com/jonboulle/clockwork v0.1.0/go.mod h1:Ii8DK3G1RaLaWxj9trq07+26W01tbo22gdxWY5EU2bo=
100 | github.com/julienschmidt/httprouter v1.2.0/go.mod h1:SYymIcj16QtmaHHD7aYtjjsJG7VTCxuUUipMqKk8s4w=
101 | github.com/kisielk/errcheck v1.1.0/go.mod h1:EZBBE59ingxPouuu3KfxchcWSUPOHkagtvWXihfKN4Q=
102 | github.com/kisielk/errcheck v1.2.0/go.mod h1:/BMXB+zMLi60iA8Vv6Ksmxu/1UDYcXs4uQLJ+jE2L00=
103 | github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
104 | github.com/klauspost/compress v1.4.0/go.mod h1:RyIbtBH6LamlWaDj8nUwkbUhJ87Yi3uG0guNDohfE1A=
105 | github.com/klauspost/compress v1.4.1/go.mod h1:RyIbtBH6LamlWaDj8nUwkbUhJ87Yi3uG0guNDohfE1A=
106 | github.com/klauspost/cpuid v0.0.0-20180405133222-e7e905edc00e/go.mod h1:Pj4uuM528wm8OyEC2QMXAi2YiTZ96dNQPGgoMS4s3ek=
107 | github.com/klauspost/cpuid v1.2.0/go.mod h1:Pj4uuM528wm8OyEC2QMXAi2YiTZ96dNQPGgoMS4s3ek=
108 | github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
109 | github.com/konsorten/go-windows-terminal-sequences v1.0.2/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
110 | github.com/kr/logfmt v0.0.0-20140226030751-b84e30acd515/go.mod h1:+0opPa2QZZtGFBFZlji/RkVcI2GknAs/DXo4wKdlNEc=
111 | github.com/kr/pretty v0.1.0 h1:L/CwN0zerZDmRFUapSPitk6f+Q3+0za1rQkzVuMiMFI=
112 | github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
113 | github.com/kr/pretty v0.2.0 h1:s5hAObm+yFO5uHYt5dYjxi2rXrsnmRpJx4OYvIWUaQs=
114 | github.com/kr/pretty v0.2.0/go.mod h1:ipq/a2n7PKx3OHsz4KJII5eveXtPO4qwEXGdVfWzfnI=
115 | github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
116 | github.com/kr/pty v1.1.8/go.mod h1:O1sed60cT9XZ5uDucP5qwvh+TE3NnUj51EiZO/lmSfw=
117 | github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
118 | github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
119 | github.com/lib/pq v1.2.0/go.mod h1:5WUZQaWbwv1U+lTReE5YruASi9Al49XbQIvNi/34Woo=
120 | github.com/logrusorgru/aurora v0.0.0-20181002194514-a7b3b318ed4e/go.mod h1:7rIyQOR62GCctdiQpZ/zOJlFyk6y+94wXzv6RNZgaR4=
121 | github.com/magiconair/properties v1.8.0/go.mod h1:PppfXfuXeibc/6YijjN8zIbojt8czPbwD3XqdrwzmxQ=
122 | github.com/magiconair/properties v1.8.1/go.mod h1:PppfXfuXeibc/6YijjN8zIbojt8czPbwD3XqdrwzmxQ=
123 | github.com/matoous/godox v0.0.0-20190911065817-5d6d842e92eb/go.mod h1:1BELzlh859Sh1c6+90blK8lbYy0kwQf1bYlBhBysy1s=
124 | github.com/mattn/go-colorable v0.1.4/go.mod h1:U0ppj6V5qS13XJ6of8GYAs25YV2eR4EVcfRqFIhoBtE=
125 | github.com/mattn/go-isatty v0.0.8/go.mod h1:Iq45c/XA43vh69/j3iqttzPXn0bhXyGjM0Hdxcsrc5s=
126 | github.com/mattn/go-isatty v0.0.10/go.mod h1:qgIWMr58cqv1PHHyhnkY9lrL7etaEgOFcMEpPG5Rm84=
127 | github.com/mattn/goveralls v0.0.2/go.mod h1:8d1ZMHsd7fW6IRPKQh46F2WRpyib5/X4FOpevwGNQEw=
128 | github.com/matttproud/golang_protobuf_extensions v1.0.1/go.mod h1:D8He9yQNgCq6Z5Ld7szi9bcBfOoFv/3dc6xSMkL2PC0=
129 | github.com/mitchellh/go-homedir v1.1.0/go.mod h1:SfyaCUpYCn1Vlf4IUYiD9fPX4A5wJrkLzIz1N1q0pr0=
130 | github.com/mitchellh/go-ps v0.0.0-20190716172923-621e5597135b/go.mod h1:r1VsdOzOPt1ZSrGZWFoNhsAedKnEd6r9Np1+5blZCWk=
131 | github.com/mitchellh/mapstructure v1.1.2/go.mod h1:FVVH3fgwuzCH5S8UJGiWEs2h04kUh9fWfEaFds41c1Y=
132 | github.com/mozilla/tls-observatory v0.0.0-20190404164649-a3c1b6cfecfd/go.mod h1:SrKMQvPiws7F7iqYp8/TX+IhxCYhzr6N/1yb8cwHsGk=
133 | github.com/mwitkow/go-conntrack v0.0.0-20161129095857-cc309e4a2223/go.mod h1:qRWi+5nqEBWmkhHvq77mSJWrCKwh8bxhgT7d/eI7P4U=
134 | github.com/nbutton23/zxcvbn-go v0.0.0-20180912185939-ae427f1e4c1d/go.mod h1:o96djdrsSGy3AWPyBgZMAGfxZNfgntdJG+11KU4QvbU=
135 | github.com/oklog/ulid v1.3.1/go.mod h1:CirwcVhetQ6Lv90oh/F+FBtV6XMibvdAFo93nm5qn4U=
136 | github.com/onsi/ginkgo v1.6.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
137 | github.com/onsi/ginkgo v1.10.1/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
138 | github.com/onsi/gomega v1.7.0/go.mod h1:ex+gbHU/CVuBBDIJjb2X0qEXbFg53c61hWP/1CpauHY=
139 | github.com/opentracing/opentracing-go v1.1.1-0.20190913142402-a7454ce5950e/go.mod h1:UkNAQd3GIcIGf0SeVgPpRdFStlNbqXla1AfSYxPUl2o=
140 | github.com/pelletier/go-toml v1.2.0/go.mod h1:5z9KED0ma1S8pY6P1sdut58dfprrGBbd/94hg7ilaic=
141 | github.com/pelletier/go-toml v1.5.0/go.mod h1:5N711Q9dKgbdkxHL+MEfF31hpT7l0S0s/t2kKREewys=
142 | github.com/pkg/errors v0.8.0/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
143 | github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
144 | github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
145 | github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
146 | github.com/prometheus/client_golang v0.9.1/go.mod h1:7SWBe2y4D6OKWSNQJUaRYU/AaXPKyh/dDVn+NZz0KFw=
147 | github.com/prometheus/client_golang v0.9.3/go.mod h1:/TN21ttK/J9q6uSwhBd54HahCDft0ttaMvbicHlPoso=
148 | github.com/prometheus/client_model v0.0.0-20180712105110-5c3871d89910/go.mod h1:MbSGuTsp3dbXC40dX6PRTWyKYBIrTGTE9sqQNg2J8bo=
149 | github.com/prometheus/client_model v0.0.0-20190129233127-fd36f4220a90/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
150 | github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
151 | github.com/prometheus/common v0.0.0-20181113130724-41aa239b4cce/go.mod h1:daVV7qP5qjZbuso7PdcryaAu0sAZbrN9i7WWcTMWvro=
152 | github.com/prometheus/common v0.4.0/go.mod h1:TNfzLD0ON7rHzMJeJkieUDPYmFC7Snx/y86RQel1bk4=
153 | github.com/prometheus/procfs v0.0.0-20181005140218-185b4288413d/go.mod h1:c3At6R/oaqEKCNdg8wHV1ftS6bRYblBhIjjI8uT2IGk=
154 | github.com/prometheus/procfs v0.0.0-20190507164030-5867b95ac084/go.mod h1:TjEm7ze935MbeOT/UhFTIMYKhuLP4wbCsTZCD3I8kEA=
155 | github.com/prometheus/tsdb v0.7.1/go.mod h1:qhTCs0VvXwvX/y3TZrWD7rabWM+ijKTux40TwIPHuXU=
156 | github.com/quasilyte/go-consistent v0.0.0-20190521200055-c6f3937de18c/go.mod h1:5STLWrekHfjyYwxBRVRXNOSewLJ3PWfDJd1VyTS21fI=
157 | github.com/rogpeppe/fastuuid v0.0.0-20150106093220-6724a57986af/go.mod h1:XWv6SoW27p1b0cqNHllgS5HIMJraePCO15w5zCzIWYg=
158 | github.com/rogpeppe/go-internal v1.3.0/go.mod h1:M8bDsm7K2OlrFYOpmOWEs/qY81heoFRclV5y23lUDJ4=
159 | github.com/rogpeppe/go-internal v1.3.2/go.mod h1:xXDCJY+GAPziupqXw64V24skbSoqbTEfhy4qGm1nDQc=
160 | github.com/russross/blackfriday v1.5.2/go.mod h1:JO/DiYxRf+HjHt06OyowR9PTA263kcR/rfWxYHBV53g=
161 | github.com/securego/gosec v0.0.0-20191002120514-e680875ea14d/go.mod h1:w5+eXa0mYznDkHaMCXA4XYffjlH+cy1oyKbfzJXa2Do=
162 | github.com/securego/gosec v0.0.0-20191008095658-28c1128b7336/go.mod h1:w5+eXa0mYznDkHaMCXA4XYffjlH+cy1oyKbfzJXa2Do=
163 | github.com/shirou/gopsutil v0.0.0-20190901111213-e4ec7b275ada/go.mod h1:WWnYX4lzhCH5h/3YBfyVA3VbLYjlMZZAQcW9ojMexNc=
164 | github.com/shirou/w32 v0.0.0-20160930032740-bb4de0191aa4/go.mod h1:qsXQc7+bwAM3Q1u/4XEfrquwF8Lw7D7y5cD8CuHnfIc=
165 | github.com/shurcooL/go v0.0.0-20180423040247-9e1955d9fb6e/go.mod h1:TDJrrUr11Vxrven61rcy3hJMUqaf/CLWYhHNPmT14Lk=
166 | github.com/shurcooL/go-goon v0.0.0-20170922171312-37c2f522c041/go.mod h1:N5mDOmsrJOB+vfqUK+7DmDyjhSLIIBnXo9lvZJj3MWQ=
167 | github.com/sirupsen/logrus v1.2.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPxbbu5VWo=
168 | github.com/sirupsen/logrus v1.4.2/go.mod h1:tLMulIdttU9McNUspp0xgXVQah82FyeX6MwdIuYE2rE=
169 | github.com/soheilhy/cmux v0.1.4/go.mod h1:IM3LyeVVIOuxMH7sFAkER9+bJ4dT7Ms6E4xg4kGIyLM=
170 | github.com/sourcegraph/go-diff v0.5.1/go.mod h1:j2dHj3m8aZgQO8lMTcTnBcXkRRRqi34cd2MNlA9u1mE=
171 | github.com/spaolacci/murmur3 v0.0.0-20180118202830-f09979ecbc72/go.mod h1:JwIasOWyU6f++ZhiEuf87xNszmSA2myDM2Kzu9HwQUA=
172 | github.com/spf13/afero v1.1.2/go.mod h1:j4pytiNVoe2o6bmDsKpLACNPDBIoEAkihy7loJ1B0CQ=
173 | github.com/spf13/afero v1.2.2/go.mod h1:9ZxEEn6pIJ8Rxe320qSDBk6AsU0r9pR7Q4OcevTdifk=
174 | github.com/spf13/cast v1.3.0/go.mod h1:Qx5cxh0v+4UWYiBimWS+eyWzqEqokIECu5etghLkUJE=
175 | github.com/spf13/cobra v0.0.5/go.mod h1:3K3wKZymM7VvHMDS9+Akkh4K60UwM26emMESw8tLCHU=
176 | github.com/spf13/jwalterweatherman v1.0.0/go.mod h1:cQK4TGJAtQXfYWX+Ddv3mKDzgVb68N+wFjFa4jdeBTo=
177 | github.com/spf13/jwalterweatherman v1.1.0/go.mod h1:aNWZUN0dPAAO/Ljvb5BEdw96iTZ0EXowPYD95IqWIGo=
178 | github.com/spf13/pflag v1.0.3/go.mod h1:DYY7MBk1bdzusC3SYhjObp+wFpr4gzcvqqNjLnInEg4=
179 | github.com/spf13/pflag v1.0.5/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
180 | github.com/spf13/viper v1.3.2/go.mod h1:ZiWeW+zYFKm7srdB9IoDzzZXaJaI5eL9QjNiN/DMA2s=
181 | github.com/spf13/viper v1.4.0/go.mod h1:PTJ7Z/lr49W6bUbkmS1V3by4uWynFiR9p7+dSq/yZzE=
182 | github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
183 | github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
184 | github.com/stretchr/objx v0.2.0/go.mod h1:qt09Ya8vawLte6SNmTgCsAVtYtaKzEcn8ATUoHMkEqE=
185 | github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
186 | github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
187 | github.com/stretchr/testify v1.4.0 h1:2E4SXV/wtOkTonXsotYi4li6zVWxYlZuYNCXe9XRJyk=
188 | github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
189 | github.com/timakin/bodyclose v0.0.0-20190930140734-f7f2e9bca95e/go.mod h1:Qimiffbc6q9tBWlVV6x0P9sat/ao1xEkREYPPj9hphk=
190 | github.com/tmc/grpc-websocket-proxy v0.0.0-20190109142713-0ad062ec5ee5/go.mod h1:ncp9v5uamzpCO7NfCPTXjqaC+bZgJeR0sMTm6dMHP7U=
191 | github.com/ugorji/go v1.1.4/go.mod h1:uQMGLiO92mf5W77hV/PUCpI3pbzQx3CRekS0kk+RGrc=
192 | github.com/ugorji/go/codec v0.0.0-20181204163529-d75b2dcb6bc8/go.mod h1:VFNgLljTbGfSG7qAOspJ7OScBnGdDN/yBr0sguwnwf0=
193 | github.com/ultraware/funlen v0.0.2/go.mod h1:Dp4UiAus7Wdb9KUZsYWZEWiRzGuM2kXM1lPbfaF6xhA=
194 | github.com/ultraware/whitespace v0.0.4/go.mod h1:aVMh/gQve5Maj9hQ/hg+F75lr/X5A89uZnzAmWSineA=
195 | github.com/uudashr/gocognit v0.0.0-20190926065955-1655d0de0517/go.mod h1:j44Ayx2KW4+oB6SWMv8KsmHzZrOInQav7D3cQMJ5JUM=
196 | github.com/uudashr/gocognit v1.0.0/go.mod h1:j44Ayx2KW4+oB6SWMv8KsmHzZrOInQav7D3cQMJ5JUM=
197 | github.com/valyala/bytebufferpool v1.0.0/go.mod h1:6bBcMArwyJ5K/AmCkWv1jt77kVWyCJ6HpOuEn7z0Csc=
198 | github.com/valyala/fasthttp v1.2.0/go.mod h1:4vX61m6KN+xDduDNwXrhIAVZaZaZiQ1luJk8LWSxF3s=
199 | github.com/valyala/quicktemplate v1.2.0/go.mod h1:EH+4AkTd43SvgIbQHYu59/cJyxDoOVRUAfrukLPuGJ4=
200 | github.com/valyala/tcplisten v0.0.0-20161114210144-ceec8f93295a/go.mod h1:v3UYOV9WzVtRmSR+PDvWpU/qWl4Wa5LApYYX4ZtKbio=
201 | github.com/xiang90/probing v0.0.0-20190116061207-43a291ad63a2/go.mod h1:UETIi67q53MR2AWcXfiuqkDkRtnGDLqkBTpCHuJHxtU=
202 | github.com/xordataexchange/crypt v0.0.3-0.20170626215501-b2862e3d0a77/go.mod h1:aYKd//L2LvnjZzWKhF00oedf4jCCReLcmhLdhm1A27Q=
203 | go.etcd.io/bbolt v1.3.2/go.mod h1:IbVyRI1SCnLcuJnV2u8VeU0CEYM7e686BmAb1XKL+uU=
204 | go.opentelemetry.io v0.1.0 h1:EANZoRCOP+A3faIlw/iN6YEWoYb1vleZRKm1EvH8T48=
205 | go.opentelemetry.io/otel v0.2.0 h1:s7SAglwrmzYso5kCAMwtaHgJxsghZpKm1iWEsaRnMtU=
206 | go.opentelemetry.io/otel v0.2.0/go.mod h1:DztlYhVA/vOw2JNr1nYhZNHXY40sm34xHavb5BDig3s=
207 | go.uber.org/atomic v1.4.0/go.mod h1:gD2HeocX3+yG+ygLZcrzQJaqmWj9AIm7n08wl/qW/PE=
208 | go.uber.org/multierr v1.1.0/go.mod h1:wR5kodmAFQ0UK8QlbwjlSNy0Z68gJhDJUG5sjR94q/0=
209 | go.uber.org/zap v1.10.0/go.mod h1:vwi/ZaCAaUcBkycHslxD9B2zi4UTXhF60s6SWpuDF0Q=
210 | golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
211 | golang.org/x/crypto v0.0.0-20181203042331-505ab145d0a9/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
212 | golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
213 | golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
214 | golang.org/x/crypto v0.0.0-20190923035154-9ee001bba392/go.mod h1:/lpIB1dKB+9EgE3H3cr1v9wB50oz8l4C4h62xy7jSTY=
215 | golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
216 | golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
217 | golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
218 | golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
219 | golang.org/x/mod v0.0.0-20190513183733-4bf6d317e70e/go.mod h1:mXi4GBBbnImb6dmsKGUJ2LatrhH/nqhxcFungHvyanc=
220 | golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
221 | golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
222 | golang.org/x/net v0.0.0-20180906233101-161cd47e91fd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
223 | golang.org/x/net v0.0.0-20180911220305-26e67e76b6c3/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
224 | golang.org/x/net v0.0.0-20181114220301-adae6a3d119a/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
225 | golang.org/x/net v0.0.0-20181220203305-927f97764cc3/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
226 | golang.org/x/net v0.0.0-20190213061140-3a22650c66bd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
227 | golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
228 | golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
229 | golang.org/x/net v0.0.0-20190522155817-f3200d17e092/go.mod h1:HSz+uSET+XFnRR8LxR5pz3Of3rY3CfYBVs4xY44aLks=
230 | golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
231 | golang.org/x/net v0.0.0-20190923162816-aa69164e4478/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
232 | golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
233 | golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
234 | golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
235 | golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
236 | golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
237 | golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
238 | golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
239 | golang.org/x/sys v0.0.0-20180909124046-d0be0721c37e/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
240 | golang.org/x/sys v0.0.0-20181107165924-66b7b1311ac8/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
241 | golang.org/x/sys v0.0.0-20181116152217-5ac8a444bdc5/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
242 | golang.org/x/sys v0.0.0-20181205085412-a5c9d58dba9a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
243 | golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
244 | golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
245 | golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
246 | golang.org/x/sys v0.0.0-20190422165155-953cdadca894/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
247 | golang.org/x/sys v0.0.0-20190922100055-0a153f010e69/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
248 | golang.org/x/sys v0.0.0-20191008105621-543471e840be/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
249 | golang.org/x/sys v0.0.0-20191010194322-b09406accb47/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
250 | golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
251 | golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
252 | golang.org/x/time v0.0.0-20190308202827-9d24e82272b4/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
253 | golang.org/x/tools v0.0.0-20180221164845-07fd8470d635/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
254 | golang.org/x/tools v0.0.0-20180525024113-a5b4c53f6e8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
255 | golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
256 | golang.org/x/tools v0.0.0-20181030221726-6c7e314b6563/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
257 | golang.org/x/tools v0.0.0-20181117154741-2ddaf7f79a09/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
258 | golang.org/x/tools v0.0.0-20190110163146-51295c7ec13a/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
259 | golang.org/x/tools v0.0.0-20190114222345-bf090417da8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
260 | golang.org/x/tools v0.0.0-20190226205152-f727befe758c/go.mod h1:9Yl7xja0Znq3iFh3HoIrodX9oNMXvdceNzlUR8zjMvY=
261 | golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
262 | golang.org/x/tools v0.0.0-20190311215038-5c2858a9cfe5/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
263 | golang.org/x/tools v0.0.0-20190322203728-c1a832b0ad89/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
264 | golang.org/x/tools v0.0.0-20190521203540-521d6ed310dd/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
265 | golang.org/x/tools v0.0.0-20190524140312-2c0ae7006135/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
266 | golang.org/x/tools v0.0.0-20190621195816-6e04913cbbac/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc=
267 | golang.org/x/tools v0.0.0-20190719005602-e377ae9d6386/go.mod h1:jcCCGcm9btYwXyDqrUWc6MKQKKGJCWEQ3AfLSRIbEuI=
268 | golang.org/x/tools v0.0.0-20190910044552-dd2b5c81c578/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
269 | golang.org/x/tools v0.0.0-20190911151314-feee8acb394c/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
270 | golang.org/x/tools v0.0.0-20190930201159-7c411dea38b0/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
271 | golang.org/x/tools v0.0.0-20191010075000-0337d82405ff/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
272 | golang.org/x/tools v0.0.0-20191025174333-e96d959c4788/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
273 | golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
274 | google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
275 | google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
276 | google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
277 | google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
278 | google.golang.org/genproto v0.0.0-20191009194640-548a555dbc03 h1:4HYDjxeNXAOTv3o1N2tjo8UUSlhQgAD52FVkwxnWgM8=
279 | google.golang.org/genproto v0.0.0-20191009194640-548a555dbc03/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc=
280 | google.golang.org/genproto v0.0.0-20191230161307-f3c370f40bfb h1:ADPHZzpzM4tk4V4S5cnCrr5SwzvlrPRmqqCuJDB8UTs=
281 | google.golang.org/genproto v0.0.0-20191230161307-f3c370f40bfb/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc=
282 | google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
283 | google.golang.org/grpc v1.21.0/go.mod h1:oYelfM1adQP15Ek0mdvEgi9Df8B9CZIaU1084ijfRaM=
284 | google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
285 | google.golang.org/grpc v1.24.0 h1:vb/1TCsVn3DcJlQ0Gs1yB1pKI6Do2/QNwxdKqmc/b0s=
286 | google.golang.org/grpc v1.24.0/go.mod h1:XDChyiUovWa60DnaeDeZmSW86xtLtjtZbwvSiRnRtcA=
287 | google.golang.org/grpc v1.26.0 h1:2dTRdpdFEEhJYQD8EMLB61nnrzSCTbG38PhqdhvOltg=
288 | google.golang.org/grpc v1.26.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
289 | gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
290 | gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
291 | gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
292 | gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
293 | gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
294 | gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
295 | gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
296 | gopkg.in/resty.v1 v1.12.0/go.mod h1:mDo4pnntr5jdWRML875a/NmxYqAlA73dVijT2AXvQQo=
297 | gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
298 | gopkg.in/yaml.v2 v2.0.0-20170812160011-eb3733d160e7/go.mod h1:JAlM8MvJe8wmxCU4Bli9HhUf9+ttbYbLASfIpnQbh74=
299 | gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
300 | gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
301 | gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
302 | gopkg.in/yaml.v2 v2.2.7 h1:VUgggvou5XRW9mHwD/yXxIYSMtY0zoKQf/v226p2nyo=
303 | gopkg.in/yaml.v2 v2.2.7/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
304 | honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
305 | honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
306 | honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
307 | mvdan.cc/interfacer v0.0.0-20180901003855-c20040233aed/go.mod h1:Xkxe497xwlCKkIaQYRfC7CSLworTXY9RMqwhhCm+8Nc=
308 | mvdan.cc/lint v0.0.0-20170908181259-adc824a0674b/go.mod h1:2odslEg/xrtNQqCYg2/jCoyKnw3vv5biOc3JnIcYfL4=
309 | mvdan.cc/unparam v0.0.0-20190720180237-d51796306d8f/go.mod h1:4G1h5nDURzA3bwVMZIVpwbkw+04kSxk3rAtzlimaUJw=
310 | mvdan.cc/unparam v0.0.0-20190917161559-b83a221c10a2/go.mod h1:rCqoQrfAmpTX/h2APczwM7UymU/uvaOluiVPIYCSY/k=
311 | sourcegraph.com/sqs/pbtypes v0.0.0-20180604144634-d3ebe8f20ae4/go.mod h1:ketZ/q3QxT9HOBeFhu6RdvsftgpsbFHBF5Cas6cDKZ0=
312 | sourcegraph.com/sqs/pbtypes v1.0.0/go.mod h1:3AciMUv4qUuRHRHhOG4TZOB+72GdPVz5k+c648qsFS4=
313 | 


--------------------------------------------------------------------------------
/service/add-notrace/add.go:
--------------------------------------------------------------------------------
 1 | package addnotrace
 2 | 
 3 | import (
 4 | 	"fmt"
 5 | 	"log"
 6 | 	"net/http"
 7 | 	"strconv"
 8 | 	"strings"
 9 | )
10 | 
11 | func Run() {
12 | 	mux := http.NewServeMux()
13 | 	mux.Handle("/", http.HandlerFunc(addHandler))
14 | 
15 | 	log.Println("Initializing server...")
16 | 	err := http.ListenAndServe(":3001", mux)
17 | 	if err != nil {
18 | 		log.Fatalf("Could not initialize server: %s", err)
19 | 	}
20 | }
21 | 
22 | func addHandler(w http.ResponseWriter, req *http.Request) {
23 | 	values := strings.Split(req.URL.Query()["o"][0], ",")
24 | 	var res int
25 | 	for _, n := range values {
26 | 		i, err := strconv.Atoi(n)
27 | 		if err != nil {
28 | 			http.Error(w, err.Error(), http.StatusBadRequest)
29 | 			return
30 | 		}
31 | 		res += i
32 | 	}
33 | 	fmt.Fprintf(w, "%d", res)
34 | }
35 | 


--------------------------------------------------------------------------------
/service/add/add.go:
--------------------------------------------------------------------------------
 1 | package add
 2 | 
 3 | import (
 4 | 	"fmt"
 5 | 	"log"
 6 | 	"net/http"
 7 | 	"strconv"
 8 | 	"strings"
 9 | 
10 | 	sdktrace "go.opentelemetry.io/otel/sdk/trace"
11 | 
12 | 	"go.opentelemetry.io/otel/api/global"
13 | 	"go.opentelemetry.io/otel/exporter/trace/stdout"
14 | 	"go.opentelemetry.io/otel/plugin/othttp"
15 | )
16 | 
17 | func Run() {
18 | 	std, err := stdout.NewExporter(stdout.Options{PrettyPrint: true})
19 | 	if err != nil {
20 | 		log.Fatal(err)
21 | 	}
22 | 
23 | 	traceProvider, err := sdktrace.NewProvider(sdktrace.WithConfig(sdktrace.Config{DefaultSampler: sdktrace.AlwaysSample()}),
24 | 		sdktrace.WithSyncer(std))
25 | 	if err != nil {
26 | 		log.Fatal(err)
27 | 	}
28 | 
29 | 	global.SetTraceProvider(traceProvider)
30 | 
31 | 	mux := http.NewServeMux()
32 | 	mux.Handle("/", othttp.NewHandler(http.HandlerFunc(addHandler), "add", othttp.WithPublicEndpoint()))
33 | 
34 | 	log.Println("Initializing server...")
35 | 	err = http.ListenAndServe(":3001", mux)
36 | 	if err != nil {
37 | 		log.Fatalf("Could not initialize server: %s", err)
38 | 	}
39 | }
40 | 
41 | func addHandler(w http.ResponseWriter, req *http.Request) {
42 | 	values := strings.Split(req.URL.Query()["o"][0], ",")
43 | 	var res int
44 | 	for _, n := range values {
45 | 		i, err := strconv.Atoi(n)
46 | 		if err != nil {
47 | 			http.Error(w, err.Error(), http.StatusBadRequest)
48 | 			return
49 | 		}
50 | 		res += i
51 | 	}
52 | 	fmt.Fprintf(w, "%d", res)
53 | }
54 | 


--------------------------------------------------------------------------------
/service/api-notrace/main.go:
--------------------------------------------------------------------------------
  1 | package apinotrace
  2 | 
  3 | import (
  4 | 	"encoding/json"
  5 | 	"fmt"
  6 | 	"io"
  7 | 	"io/ioutil"
  8 | 	"log"
  9 | 	"net/http"
 10 | 	"os"
 11 | 	"strconv"
 12 | 	"strings"
 13 | 
 14 | 	"gopkg.in/yaml.v2"
 15 | )
 16 | 
 17 | var services Config
 18 | 
 19 | func Run() {
 20 | 	mux := http.NewServeMux()
 21 | 	mux.Handle("/", http.HandlerFunc(rootHandler))
 22 | 	mux.Handle("/calculate", http.HandlerFunc(calcHandler))
 23 | 	services = GetServices()
 24 | 
 25 | 	log.Println("Initializing server...")
 26 | 	err := http.ListenAndServe(":3000", mux)
 27 | 	if err != nil {
 28 | 		log.Fatalf("Could not initialize server: %s", err)
 29 | 	}
 30 | }
 31 | 
 32 | func rootHandler(w http.ResponseWriter, req *http.Request) {
 33 | 	fmt.Fprintf(w, "%s", services)
 34 | }
 35 | 
 36 | func calcHandler(w http.ResponseWriter, req *http.Request) {
 37 | 	calcRequest, err := ParseCalcRequest(req.Body)
 38 | 	if err != nil {
 39 | 		http.Error(w, err.Error(), http.StatusBadRequest)
 40 | 		return
 41 | 	}
 42 | 
 43 | 	var url string
 44 | 
 45 | 	for _, n := range services.Services {
 46 | 		if strings.ToLower(calcRequest.Method) == strings.ToLower(n.Name) {
 47 | 			j, _ := json.Marshal(calcRequest.Operands)
 48 | 			url = fmt.Sprintf("http://%s:%d/%s?o=%s", n.Host, n.Port, strings.ToLower(n.Name), strings.Trim(string(j), "[]"))
 49 | 		}
 50 | 	}
 51 | 
 52 | 	if url == "" {
 53 | 		http.Error(w, "could not find requested calculation method", http.StatusBadRequest)
 54 | 	}
 55 | 
 56 | 	client := http.DefaultClient
 57 | 	request, _ := http.NewRequest("GET", url, nil)
 58 | 	res, err := client.Do(request)
 59 | 	if err != nil {
 60 | 		http.Error(w, err.Error(), http.StatusInternalServerError)
 61 | 		return
 62 | 	}
 63 | 	body, err := ioutil.ReadAll(res.Body)
 64 | 	res.Body.Close()
 65 | 	if err != nil {
 66 | 		http.Error(w, err.Error(), http.StatusInternalServerError)
 67 | 		return
 68 | 	}
 69 | 
 70 | 	resp, err := strconv.Atoi(string(body))
 71 | 	if err != nil {
 72 | 		http.Error(w, err.Error(), http.StatusInternalServerError)
 73 | 		return
 74 | 	}
 75 | 
 76 | 	fmt.Fprintf(w, "%d", resp)
 77 | }
 78 | 
 79 | type CalcRequest struct {
 80 | 	Method   string `json:"method"`
 81 | 	Operands []int  `json:"operands"`
 82 | }
 83 | 
 84 | func ParseCalcRequest(body io.Reader) (CalcRequest, error) {
 85 | 	var parsedRequest CalcRequest
 86 | 
 87 | 	err := json.NewDecoder(body).Decode(&parsedRequest)
 88 | 	if err != nil {
 89 | 		return parsedRequest, err
 90 | 	}
 91 | 
 92 | 	return parsedRequest, nil
 93 | }
 94 | 
 95 | type Config struct {
 96 | 	Services []struct {
 97 | 		Name string `yaml:"name"`
 98 | 		Host string `yaml:"host"`
 99 | 		Port int    `yaml:"port"`
100 | 	} `yaml:"services"`
101 | }
102 | 
103 | func GetServices() Config {
104 | 	f, err := os.Open("services.yaml")
105 | 	if err != nil {
106 | 		log.Fatal("could not open config")
107 | 	}
108 | 	defer f.Close()
109 | 
110 | 	var cfg Config
111 | 	decoder := yaml.NewDecoder(f)
112 | 	err = decoder.Decode(&cfg)
113 | 	if err != nil {
114 | 		log.Fatal("could not process config")
115 | 	}
116 | 	return cfg
117 | }
118 | 


--------------------------------------------------------------------------------
/service/api/api.go:
--------------------------------------------------------------------------------
  1 | package api
  2 | 
  3 | import (
  4 | 	"context"
  5 | 	"encoding/json"
  6 | 	"fmt"
  7 | 	"io/ioutil"
  8 | 	"log"
  9 | 	"net/http"
 10 | 	"strconv"
 11 | 	"strings"
 12 | 
 13 | 	sdktrace "go.opentelemetry.io/otel/sdk/trace"
 14 | 
 15 | 	"go.opentelemetry.io/otel/api/global"
 16 | 	"go.opentelemetry.io/otel/api/trace"
 17 | 	"go.opentelemetry.io/otel/exporter/trace/stdout"
 18 | 	"go.opentelemetry.io/otel/plugin/httptrace"
 19 | 	"go.opentelemetry.io/otel/plugin/othttp"
 20 | )
 21 | 
 22 | var services Config
 23 | 
 24 | func Start() {
 25 | 	std, err := stdout.NewExporter(stdout.Options{PrettyPrint: true})
 26 | 	if err != nil {
 27 | 		log.Fatal(err)
 28 | 	}
 29 | 
 30 | 	traceProvider, err := sdktrace.NewProvider(sdktrace.WithConfig(sdktrace.Config{DefaultSampler: sdktrace.AlwaysSample()}),
 31 | 		sdktrace.WithSyncer(std))
 32 | 	if err != nil {
 33 | 		log.Fatal(err)
 34 | 	}
 35 | 
 36 | 	global.SetTraceProvider(traceProvider)
 37 | 
 38 | 	mux := http.NewServeMux()
 39 | 	mux.Handle("/", othttp.NewHandler(http.HandlerFunc(rootHandler), "root", othttp.WithPublicEndpoint()))
 40 | 	mux.Handle("/calculate", othttp.NewHandler(http.HandlerFunc(calcHandler), "calculate", othttp.WithPublicEndpoint()))
 41 | 	services = GetServices()
 42 | 
 43 | 	log.Println("Initializing server...")
 44 | 	err = http.ListenAndServe(":3000", mux)
 45 | 	if err != nil {
 46 | 		log.Fatalf("Could not initialize server: %s", err)
 47 | 	}
 48 | }
 49 | 
 50 | func rootHandler(w http.ResponseWriter, req *http.Request) {
 51 | 	enableCors(&w, req)
 52 | 	if (*req).Method == "OPTIONS" {
 53 | 		return
 54 | 	}
 55 | 
 56 | 	ctx := req.Context()
 57 | 	trace.CurrentSpan(ctx).AddEvent(ctx, "called root handler, getting discovered services")
 58 | 	fmt.Fprintf(w, "%s", services)
 59 | }
 60 | 
 61 | func enableCors(w *http.ResponseWriter, req *http.Request) {
 62 | 	(*w).Header().Set("Access-Control-Allow-Origin", "*")
 63 | 	(*w).Header().Set("Access-Control-Allow-Methods", "POST, GET, OPTIONS, PUT, DELETE")
 64 | 	(*w).Header().Set("Access-Control-Allow-Headers", "Accept, Content-Type, Content-Length, Accept-Encoding, X-CSRF-Token, Authorization, X-B3-SpanId, X-B3-TraceId, X-B3-Sampled, traceparent")
 65 | }
 66 | 
 67 | func calcHandler(w http.ResponseWriter, req *http.Request) {
 68 | 	ctx := req.Context()
 69 | 	tr := global.TraceProvider().Tracer("api/calcHandler")
 70 | 	enableCors(&w, req)
 71 | 	if (*req).Method == "OPTIONS" {
 72 | 		return
 73 | 	}
 74 | 
 75 | 	b, err := ioutil.ReadAll(req.Body)
 76 | 	defer req.Body.Close()
 77 | 
 78 | 	var calcRequest CalcRequest
 79 | 	err = tr.WithSpan(ctx, "generateRequest", func(ctx context.Context) error {
 80 | 		calcRequest, err = ParseCalcRequest(ctx, b)
 81 | 		return err
 82 | 	})
 83 | 
 84 | 	if err != nil {
 85 | 		trace.CurrentSpan(ctx).AddEvent(ctx, err.Error())
 86 | 		http.Error(w, err.Error(), http.StatusBadRequest)
 87 | 		return
 88 | 	}
 89 | 
 90 | 	var url string
 91 | 
 92 | 	for _, n := range services.Services {
 93 | 		if strings.ToLower(calcRequest.Method) == strings.ToLower(n.Name) {
 94 | 			j, _ := json.Marshal(calcRequest.Operands)
 95 | 			url = fmt.Sprintf("http://%s:%d/%s?o=%s", n.Host, n.Port, strings.ToLower(n.Name), strings.Trim(string(j), "[]"))
 96 | 		}
 97 | 	}
 98 | 
 99 | 	if url == "" {
100 | 		http.Error(w, "could not find requested calculation method", http.StatusBadRequest)
101 | 	}
102 | 
103 | 	client := http.DefaultClient
104 | 	ctx = req.Context()
105 | 	request, _ := http.NewRequestWithContext(ctx, "GET", url, nil)
106 | 	ctx, request = httptrace.W3C(ctx, request)
107 | 	httptrace.Inject(ctx, request)
108 | 	res, err := client.Do(request)
109 | 	if err != nil {
110 | 		http.Error(w, err.Error(), http.StatusInternalServerError)
111 | 		return
112 | 	}
113 | 	body, err := ioutil.ReadAll(res.Body)
114 | 	res.Body.Close()
115 | 	if err != nil {
116 | 		http.Error(w, err.Error(), http.StatusInternalServerError)
117 | 		return
118 | 	}
119 | 
120 | 	resp, err := strconv.Atoi(string(body))
121 | 	if err != nil {
122 | 		http.Error(w, err.Error(), http.StatusInternalServerError)
123 | 		return
124 | 	}
125 | 
126 | 	fmt.Fprintf(w, "%d", resp)
127 | }
128 | 


--------------------------------------------------------------------------------
/service/api/calcRequest.go:
--------------------------------------------------------------------------------
 1 | package api
 2 | 
 3 | import (
 4 | 	"context"
 5 | 	"encoding/json"
 6 | 	"fmt"
 7 | 
 8 | 	"go.opentelemetry.io/otel/api/trace"
 9 | 	"google.golang.org/grpc/codes"
10 | )
11 | 
12 | type CalcRequest struct {
13 | 	Method   string `json:"method"`
14 | 	Operands []int  `json:"operands"`
15 | }
16 | 
17 | func ParseCalcRequest(ctx context.Context, body []byte) (CalcRequest, error) {
18 | 	var parsedRequest CalcRequest
19 | 
20 | 	trace.CurrentSpan(ctx).AddEvent(ctx, "attempting to parse body")
21 | 	trace.CurrentSpan(ctx).AddEvent(ctx, fmt.Sprintf("%s", body))
22 | 	err := json.Unmarshal(body, &parsedRequest)
23 | 	if err != nil {
24 | 		trace.CurrentSpan(ctx).SetStatus(codes.InvalidArgument)
25 | 		trace.CurrentSpan(ctx).AddEvent(ctx, err.Error())
26 | 		trace.CurrentSpan(ctx).End()
27 | 		return parsedRequest, err
28 | 	}
29 | 	trace.CurrentSpan(ctx).End()
30 | 	return parsedRequest, nil
31 | }
32 | 


--------------------------------------------------------------------------------
/service/api/serviceConfig.go:
--------------------------------------------------------------------------------
 1 | package api
 2 | 
 3 | import (
 4 | 	"log"
 5 | 	"os"
 6 | 
 7 | 	"gopkg.in/yaml.v2"
 8 | )
 9 | 
10 | type Config struct {
11 | 	Services []struct {
12 | 		Name string `yaml:"name"`
13 | 		Host string `yaml:"host"`
14 | 		Port int    `yaml:"port"`
15 | 	} `yaml:"services"`
16 | }
17 | 
18 | func GetServices() Config {
19 | 	f, err := os.Open("services.yaml")
20 | 	if err != nil {
21 | 		log.Fatal("could not open config")
22 | 	}
23 | 	defer f.Close()
24 | 
25 | 	var cfg Config
26 | 	decoder := yaml.NewDecoder(f)
27 | 	err = decoder.Decode(&cfg)
28 | 	if err != nil {
29 | 		log.Fatal("could not process config")
30 | 	}
31 | 	return cfg
32 | }
33 | 


--------------------------------------------------------------------------------
/service/subtract/subtract.go:
--------------------------------------------------------------------------------
 1 | package subtract
 2 | 
 3 | import (
 4 | 	"fmt"
 5 | 	"log"
 6 | 	"net/http"
 7 | 	"strconv"
 8 | 	"strings"
 9 | 
10 | 	sdktrace "go.opentelemetry.io/otel/sdk/trace"
11 | 
12 | 	"go.opentelemetry.io/otel/api/global"
13 | 	"go.opentelemetry.io/otel/exporter/trace/stdout"
14 | 	"go.opentelemetry.io/otel/plugin/othttp"
15 | )
16 | 
17 | func Run() {
18 | 	std, err := stdout.NewExporter(stdout.Options{PrettyPrint: true})
19 | 	if err != nil {
20 | 		log.Fatal(err)
21 | 	}
22 | 
23 | 	traceProvider, err := sdktrace.NewProvider(sdktrace.WithConfig(sdktrace.Config{DefaultSampler: sdktrace.AlwaysSample()}),
24 | 		sdktrace.WithSyncer(std))
25 | 	if err != nil {
26 | 		log.Fatal(err)
27 | 	}
28 | 
29 | 	global.SetTraceProvider(traceProvider)
30 | 
31 | 	mux := http.NewServeMux()
32 | 	mux.Handle("/", othttp.NewHandler(http.HandlerFunc(subtractHandler), "subtract", othttp.WithPublicEndpoint()))
33 | 
34 | 	log.Println("Initializing server...")
35 | 	err = http.ListenAndServe(":3002", mux)
36 | 	if err != nil {
37 | 		log.Fatalf("Could not initialize server: %s", err)
38 | 	}
39 | }
40 | 
41 | func subtractHandler(w http.ResponseWriter, req *http.Request) {
42 | 	values := strings.Split(req.URL.Query()["o"][0], ",")
43 | 	var res int
44 | 	for _, n := range values {
45 | 		i, err := strconv.Atoi(n)
46 | 		if err != nil {
47 | 			http.Error(w, err.Error(), http.StatusBadRequest)
48 | 			return
49 | 		}
50 | 		res -= i
51 | 	}
52 | 	fmt.Fprintf(w, "%d", res)
53 | }
54 | 


--------------------------------------------------------------------------------
/services.yaml:
--------------------------------------------------------------------------------
 1 | services:
 2 |     - name: Add
 3 |       host: localhost
 4 |       port: 3001
 5 |     - name: Subtract
 6 |       host: localhost
 7 |       port: 3002
 8 |     - name: Multiply
 9 |       host: localhost
10 |       port: 3003


--------------------------------------------------------------------------------
/web/client/index.html:
--------------------------------------------------------------------------------
 1 | <!DOCTYPE html>
 2 | <html lang="en">
 3 | 
 4 | <head>
 5 |   <meta charset="utf-8">
 6 |   <title>MicroCalc</title>
 7 |   <base href="/">
 8 | 
 9 |   <meta name="viewport" content="width=device-width, initial-scale=1">
10 | </head>
11 | 
12 | <body>
13 |   Do some math!
14 |   <script type="text/javascript" src="client.js"></script>
15 |   <br/>
16 |   <div>
17 |     <form id="calc">
18 |         <label for="operands">Enter values: </label>
19 |         <input id="operands" name="values" value="1, 2">
20 |         <input type="radio" id="add" name="calcMethod" value="add" checked>
21 |         <label for="add">Add</label>
22 |         <input type="radio" id="subtract" name="calcMethod" value="subtract">
23 |         <label for="subtract">Subtract</label>
24 |         <button id="submit">Calculate</button>
25 |     </form>
26 |   </div>
27 |   <div>
28 |       <p>Result: <span id="result"></span></p>
29 |   </div>
30 | 
31 | </body>
32 | 
33 | </html>


--------------------------------------------------------------------------------
/web/client/main.js:
--------------------------------------------------------------------------------
 1 | 'use strict';
 2 | 
 3 | import { ConsoleSpanExporter, SimpleSpanProcessor } from '@opentelemetry/tracing';
 4 | import { WebTracer } from '@opentelemetry/web';
 5 | import { XMLHttpRequestPlugin } from '@opentelemetry/plugin-xml-http-request';
 6 | import { ZoneScopeManager } from '@opentelemetry/scope-zone';
 7 | 
 8 | const webTracerWithZone = new WebTracer({
 9 |   scopeManager: new ZoneScopeManager(),
10 |   plugins: [
11 |     new XMLHttpRequestPlugin({
12 |       ignoreUrls: [/localhost:8090\/sockjs-node/],
13 |       propagateTraceHeaderCorsUrls: [
14 |         'http://localhost:3000/calculate'
15 |       ]
16 |     })
17 |   ]
18 | });
19 | 
20 | webTracerWithZone.addSpanProcessor(new SimpleSpanProcessor(new ConsoleSpanExporter()));
21 | 
22 | 
23 | const handleForm = () => {
24 |     const endpoint = 'http://localhost:3000/calculate'
25 |     let form = document.getElementById('calc')
26 | 
27 |     const onClick = (event) => {
28 |         event.preventDefault();
29 |         const span = webTracerWithZone.startSpan('calc-request', { parent: webTracerWithZone.getCurrentSpan() });
30 |         let fd = new FormData(form);
31 |         let requestPayload = {
32 |             method: fd.get('calcMethod'),
33 |             operands: tokenizeOperands(fd.get('values'))
34 |         };
35 |         webTracerWithZone.withSpan(span, () => {
36 |           calculate(endpoint, requestPayload).then((res) => {
37 |             webTracerWithZone.getCurrentSpan().addEvent('request-complete');
38 |             span.end();
39 |             updateResult(res);
40 |           });
41 |         });
42 |     }
43 |     form.addEventListener('submit', onClick)
44 | }
45 | 
46 | const calculate = (endpoint, payload) => {
47 |   return new Promise(async (resolve, reject) => {
48 |     const req = new XMLHttpRequest();
49 |     req.open('POST', endpoint, true);
50 |     req.setRequestHeader('Content-Type', 'application/json');
51 |     req.setRequestHeader('Accept', 'application/json');
52 |     req.send(JSON.stringify(payload))
53 |     req.onload = function () {
54 |       resolve(req.response);
55 |     };
56 |   });
57 | };
58 | 
59 | const updateResult = (res) => {
60 |   document.getElementById('result').innerHTML = res
61 | }
62 | 
63 | const tokenizeOperands = (values) => {
64 |   return values.split(',').map(Number)
65 | }
66 | 
67 | window.addEventListener('load', handleForm);
68 | 


--------------------------------------------------------------------------------
/web/package.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "name": "web-example",
 3 |   "private": true,
 4 |   "version": "0.0.1",
 5 |   "description": "tracing sample",
 6 |   "main": "index.js",
 7 |   "scripts": {
 8 |     "start": "webpack-dev-server -d --progress --colors --port 8090 --config webpack.config.js --hot --inline --host 0.0.0.0 --content-base client"
 9 |   },
10 |   "repository": {
11 |     "type": "git",
12 |     "url": "git+ssh://git@github.com/austinlparker/microcalc.git"
13 |   },
14 |   "engines": {
15 |     "node": ">=8"
16 |   },
17 |   "author": "Austin Parker",
18 |   "license": "Apache-2.0",
19 |   "devDependencies": {
20 |     "@babel/core": "^7.6.0",
21 |     "babel-loader": "^8.0.6",
22 |     "ts-loader": "^6.0.4",
23 |     "webpack": "^4.35.2",
24 |     "webpack-cli": "^3.3.9",
25 |     "webpack-dev-server": "^3.8.1",
26 |     "webpack-merge": "^4.2.2"
27 |   },
28 |   "dependencies": {
29 |     "@opentelemetry/exporter-collector": "^0.3.2",
30 |     "@opentelemetry/plugin-document-load": "^0.3.2",
31 |     "@opentelemetry/plugin-xml-http-request": "^0.3.2",
32 |     "@opentelemetry/scope-zone": "^0.3.2",
33 |     "@opentelemetry/tracing": "^0.3.2",
34 |     "@opentelemetry/web": "^0.3.2"
35 |   }
36 | }
37 | 


--------------------------------------------------------------------------------
/web/webpack.config.js:
--------------------------------------------------------------------------------
 1 | const webpack = require('webpack');
 2 | const webpackMerge = require('webpack-merge');
 3 | const path = require('path');
 4 | const directory = path.resolve(__dirname);
 5 | 
 6 | const common = {
 7 |   mode: 'development',
 8 |   entry: {
 9 |     'client': 'client/main.js'
10 |   },
11 |   output: {
12 |     path: path.resolve(__dirname, 'dist'),
13 |     filename: '[name].js',
14 |     sourceMapFilename: '[file].map'
15 |   },
16 |   target: 'web',
17 |   module: {
18 |     rules: [
19 |       {
20 |         test: /\.js[x]?$/,
21 |         exclude: /(node_modules)/,
22 |         use: {
23 |           loader: 'babel-loader'
24 |         }
25 |       },
26 |       {
27 |         test: /\.ts$/,
28 |         exclude: /(node_modules)/,
29 |         use: {
30 |           loader: 'ts-loader'
31 |         }
32 |       }
33 |     ]
34 |   },
35 |   resolve: {
36 |     modules: [
37 |       path.resolve(directory),
38 |       'node_modules'
39 |     ],
40 |     extensions: ['.ts', '.js', '.jsx', '.json']
41 |   }
42 | };
43 | 
44 | module.exports = webpackMerge(common, {
45 |   devtool: 'eval-source-map',
46 |   devServer: {
47 |     contentBase: path.resolve(__dirname)
48 |   },
49 |   plugins: [
50 |     new webpack.DefinePlugin({
51 |       'process.env.NODE_ENV': JSON.stringify('development')
52 |     })
53 |   ]
54 | });


--------------------------------------------------------------------------------