This article describes how to add a new API user in the Nexus Push Service to get a unique API key to use.

Prerequisites

Step-by-step instruction

Edit configuration file

Navigate to the top-level directory where docker-compose.yml is located. The config file should then be found in a config/ directory.
Example: File structure
```
mydir/
|-- cacerts
|-- certificates
|-- config
|   |-- application.yml -> cod-nps.yml
|   `-- cod-nps.yml
`-- docker-compose.yml
```
Open the configuration file for editing:
Example: Command to edit configuration file
```
vi config/cod-nps.yml
```
Open a browser and go to the following URL, using a unique <myclientid>:
Example: Generate client URL
```
http://localhost:20200/<contextPath>/<uriBase>/util/generateclient/<myclientid>
```
Find port number
All requests below are triggered from the host itself, thus localhost is used.
Please note that the port number might have been assigned a different value. To find out the current port number, type:
```
docker ps | grep nps_nps
```
Copy the content from the resulting web page and paste it into the allowedClients section of the configuration file.
Example: Generate client
```
      # X-Api-Key: a2Fyb2xpbjpmZDA0ZGUyZjFlNTU0NGIyOTE1ZEJhNjUwOThjNDkwNjM3YTA3MTVmNWM5ODQzNDU5ZjA1ZGZjMjk4MzQyOTM2 
      - clientId: <myclientid> 
        key: fd04de2f1e5544b2915d1a65098c490637a0715f5c9843459f05dfc298342936 
```
Make sure not to add extra spaces in the configuration file, since the .yml file format is space sensitive.
Save and exit the configuration file.

Refresh configuration and test API key

Refresh the configuration:

Example: Refresh configuration

curl -X POST http://localhost:20200/<contextPath>/refresh