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sample-node-api/README.md
Nakul Manchanda 40ec27e37a more changes
Signed-off-by: Nakul Manchanda <nakul.manchanda@ibm.com>
2020-08-11 20:06:21 -05:00

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# sample-node-api
A sample node js api for finding cars and accounts for a dealership,its used here to demonstrate the steps to extend API/ML with your own rest api.
## Steps
## PART I: Download & Build on local
### 1) Clone the repository, install node packages and verify routes locally
```
//on local
git clone https://github.com/zowe/sample-node-api
cd sample-node-api
npm install
npm run dev
```
Open your local browser and try accessing
`http://localhost:18000/accounts/`
`http://localhost:18000/accounts/1`
`http://localhost:18000/accounts/1/cars/`
### 2) Transfer project files from local to remote host
```
cd sample-node-api
npm run dist
scp -r dist ibmuser@my.mainframe.com:</usr/lpp/extender>/sample-node-api
```
## PART II: Deploy with Zowe on server
### 1) login
```
ssh ibmuser@my.mainframe.com
```
### 2) install dependencies
```
cd </usr/lpp/extender>/sample-node-api
npm install --only=prod
```
### 3) Manage lifecycle of service with core zowe components
Use property `EXTERNAL_COMPONENT` located in file `$INSTANCE_DIR/instance.env`
Append it with your service lifecycle scripts.
In our sample it is:
```
vi INSTANCE_DIR/instance.env
EXTERNAL_COMPONENTS=</usr/lpp/extender>/sample-node-api/bin
```
We expect following in service folder `start.sh`, `configure.sh` and `validate.sh`.
In our case its bin folder with relevant scripts.
`configure.sh` it adds static definition for sample-node-api to folder ${INSTANCE_DIR}/workspace/api-mediation/api-defs in IBM-850 encoding
`start.sh` starts node app on configured port
`env.sh` its custom script use to configure port for our node app, feel free to use your desired way
### 4) Access newly deployed webservice
Please see static definition file `sample-node-api.yml`
It configures service endpoint as `sample-node-api` with property `serviceId`
We also provide api gateway base path `api\v1` with property `gatewayUrl` in same file.
In effect, service can be accessed with following url:
`https://{host}:{GATEWAY_PORT}/{gatewayUrl}/{serviceId}/*`
where `GATEWAY_PORT` is configured in $INSTANCE_DIR/instance.env
Verify by accessing following:
`https://my.mainframe.com:7554/api/v1/sample-node-api/accounts/`
`https://my.mainframe.com:7554/api/v1/sample-node-api/accounts/1/`
`https://my.mainframe.com:7554/api/v1/sample-node-api/accounts/1/cars/`
### 5) Registered With API Catalog
**API Catalog**
![APICatalog_Dashboard](./screenshots/APICatalog_Dashboard.png)
![ApiCatalog_SampleNodeApi_SwaggerDoc](./screenshots/ApiCatalog_SampleNodeApi_SwaggerDoc.png)
**Discovery Service Dashboard**
![DiscoveryService_Dashboard](./screenshots/DiscoveryService_Dashboard.png)