add grpc_go-auth-mongo-accesstoken example

Source: https://github.com/armujahid/tyk-grpc-go-mongo-accesstoken

This example is containerized and can easily deployed on k8s after tweaking business logic

plugins/grpc_go-auth-mongo-accesstoken/.env.example

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+MONGODB_URL="mongoconnectionstring"
+DATABASE="something"
+COLLECTION="AccessToken"

plugins/grpc_go-auth-mongo-accesstoken/.gitignore

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+.env

plugins/grpc_go-auth-mongo-accesstoken/Dockerfile

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+FROM golang:1.15-alpine as builder
+
+WORKDIR /go/src/app
+
+RUN GRPC_HEALTH_PROBE_VERSION=v0.4.12 && \
+    wget -qO/bin/grpc_health_probe https://github.com/grpc-ecosystem/grpc-health-probe/releases/download/${GRPC_HEALTH_PROBE_VERSION}/grpc_health_probe-linux-amd64 && \
+    chmod +x /bin/grpc_health_probe
+
+COPY go.mod ./
+COPY go.sum ./
+RUN go mod download
+
+COPY *.go ./
+
+RUN CGO_ENABLED=0 go build -o /go/bin/app
+
+FROM gcr.io/distroless/static-debian11
+
+COPY --from=builder /bin/grpc_health_probe ./grpc_health_probe
+COPY --from=builder /go/bin/app /
+
+EXPOSE 9111
+
+CMD [ "/app" ]

plugins/grpc_go-auth-mongo-accesstoken/LICENSE

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+The MIT License (MIT)
+Copyright © 2022 Abdul Rauf, https://armujahid.me <abdulraufmujahid@gmail.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the “Software”), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

plugins/grpc_go-auth-mongo-accesstoken/README.md

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+# How to start gRPC server:
+
+
+```bash
+cp .env.example .env
+```
+
+
+modify .env
+
+
+
+```bash
+docker-compose up --build
+```
+
+Tyk configurations:
+
+1) tyk.conf:
+
+```
+"coprocess_options": {
+  "enable_coprocess": true,
+  "coprocess_grpc_server": "tcp://host.docker.internal:9111"
+},
+```
+
+ensure that tyk can reach the gRPC server
+
+2) Use apidef.json in tyk
+
+# Example DB config
+Create a collection in mongo with this object (I have tested this with Loopback 3 `AccessToken` model which already has compatible schema)
+```json
+{
+  "_id":"asdfasdfasdf32dsafdasdfas",
+  "ttl":1209600,
+  "created":"2022-08-30T09:20:20.910+00:00"
+}
+```
+
+# Testing:
+```bash
+curl -s 'http://localhost:8082/mongo-auth/get' -H "Authorization: asdfasdfasdf32dsafdasdfas"
+```
+Output if token is valid:
+```
+{
+  "args": {}, 
+  "headers": {
+    "Accept": "*/*", 
+    "Accept-Encoding": "gzip", 
+    "Authorization": "asdfasdfasdf32dsafdasdfas", 
+    "Host": "httpbin.org", 
+    "User-Agent": "curl/7.81.0", 
+    "X-Amzn-Trace-Id": "Root=1-6315b555-4a26f3f923cde5aa3f596b6f"
+  }, 
+  "origin": "172.28.0.1, <external ip>", 
+  "url": "http://httpbin.org/get"
+}
+```
+
+Output if token is invalid:
+```
+{
+    "error": "Access forbidden"
+}
+```

plugins/grpc_go-auth-mongo-accesstoken/apidef.json

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+{
+  "name": "Tyk Mongo Auth API",
+  "api_id": "mongoauth",
+  "org_id": "default",
+  "definition": {
+      "location": "header",
+      "key": "version"
+  },
+  "use_keyless": false,
+  "enable_coprocess_auth": true,
+  "version_data": {
+      "not_versioned": true,
+      "versions": {
+          "Default": {
+              "name": "Default"
+          }
+      }
+  },
+  "custom_middleware": {
+      "pre": [],
+      "post": [],
+      "post_key_auth": [],
+      "auth_check": {
+        "name": "MongoAuth",
+        "path": "",
+        "require_session": false
+      },
+      "response": [],
+      "driver": "grpc",
+      "id_extractor": {
+        "extract_from": "header",
+        "extract_with": "value",
+        "extractor_config": {
+          "header_name": "Authorization"
+        }
+      }
+  },
+  "proxy": {
+      "listen_path": "/mongo-auth/",
+      "target_url": "http://httpbin.org",
+      "strip_listen_path": true
+  }
+}

plugins/grpc_go-auth-mongo-accesstoken/docker-compose.yaml

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+version: "3"
+services:
+  tyk:
+    build:
+      context: .
+    env_file:
+    - .env
+    ports:
+      - "9111:9111"
+    healthcheck:
+      test: ["CMD", "/grpc_health_probe", "-addr=:9111"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+      start_period: 5s

plugins/grpc_go-auth-mongo-accesstoken/go.mod

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+module github.com/TykTechnologies/tyk-grpc-go-basicauth-jwt
+
+go 1.13
+
+require (
+	github.com/Sirupsen/logrus v1.9.0 // indirect
+	github.com/TykTechnologies/gojsonschema v0.0.0-20170222154038-dcb3e4bb7990 // indirect
+	github.com/TykTechnologies/tyk v2.6.1-0.20190726143653-b94b86c275c9+incompatible // indirect
+	github.com/TykTechnologies/tyk-protobuf v0.0.0-20190418154138-1df3dfe2f1d4
+	github.com/clbanning/mxj v1.8.4 // indirect
+	github.com/dgrijalva/jwt-go v3.2.1-0.20180921172315-3af4c746e1c2+incompatible // indirect
+	github.com/franela/goblin v0.0.0-20211003143422-0a4f594942bf // indirect
+	github.com/franela/goreq v0.0.0-20171204163338-bcd34c9993f8 // indirect
+	github.com/lonelycode/go-uuid v0.0.0-20141202165402-ed3ca8a15a93 // indirect
+	github.com/lonelycode/osin v0.0.0-20160423095202-da239c9dacb6 // indirect
+	github.com/mattn/go-colorable v0.1.13 // indirect
+	github.com/mgutz/ansi v0.0.0-20200706080929-d51e80ef957d // indirect
+	github.com/onsi/ginkgo v1.16.5 // indirect
+	github.com/onsi/gomega v1.20.2 // indirect
+	github.com/pmylund/go-cache v2.1.0+incompatible // indirect
+	github.com/sirupsen/logrus v1.4.3-0.20190701143506-07a84ee7412e
+	github.com/x-cray/logrus-prefixed-formatter v0.5.2 // indirect
+	github.com/xeipuuv/gojsonschema v1.2.0 // indirect
+	go.mongodb.org/mongo-driver v1.10.1
+	golang.org/x/crypto v0.0.0-20220622213112-05595931fe9d // indirect
+	golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3 // indirect
+	google.golang.org/genproto v0.0.0-20190425155659-357c62f0e4bb // indirect
+	google.golang.org/grpc v1.19.0
+	gopkg.in/mgo.v2 v2.0.0-20190816093944-a6b53ec6cb22 // indirect
+	honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc // indirect
+)
+
+replace (
+	github.com/Sirupsen/logrus v1.9.0 => github.com/sirupsen/logrus v1.9.0
+	github.com/sirupsen/logrus v1.9.0 => github.com/Sirupsen/logrus v1.9.0
+)