GOV.UK Pay Public API service in Java (Dropwizard)
Configuration of the application is performed via environment variables, some of which are mandatory.
| Variable | Required? | Default | Description |
|---|---|---|---|
ADMIN_PORT |
No | 8081 | The port number to listen for Dropwizard admin requests on. |
ALLOW_HTTP_FOR_RETURN_URL |
No | false | Whether to allow service return URLs to be non-HTTPS |
CONNECTOR_URL |
Yes | N/A | The URL to the connector service |
DISABLE_INTERNAL_HTTPS |
No | false | Disable secure connection for calls to internal APIs |
PORT |
No | 8080 | The port number to listen for requests on. |
PUBLICAPI_BASE |
Yes | N/A | The base URL clients can use to reach the API. e.g. http://api.example.org:1234/ |
PUBLIC_AUTH_URL |
Yes | N/A | The URL to the publicauth service |
REDIS_URL |
No | localhost:6379 | The location of the redis endpoint to store rate-limiter information in |
TOKEN_API_HMAC_SECRET |
Yes | N/A | Hmac secret to be used to validate that the given token is genuine (Api Key = Token + Hmac (Token, Secret) |
The application will rate-limit incoming API requests, recording the current
rate limit state in Redis (see REDIS_URL above). The rate-limiting behaviour
can be tuned via the following environment variables which all have default
values:
| Variable | Default | Description |
|---|---|---|
RATE_LIMITER_VALUE |
Default 75 | Number of non-POST requests allowed per RATE_LIMITER_PER_MILLIS milliseconds |
RATE_LIMITER_VALUE_POST |
Default 15 | Number of POST requests allowed per RATE_LIMITER_PER_MILLIS milliseconds |
RATE_LIMITER_ELEVATED_ACCOUNTS |
N/A | Comma-separated list of accounts to which ..._ELEVATED_... limits apply (example: 1,2,3) |
RATE_LIMITER_ELEVATED_VALUE_GET |
Default 100 | Number of non-POST requests allowed per RATE_LIMITER_PER_MILLIS milliseconds (for RATE_LIMITER_ELEVATED_ACCOUNTS) |
RATE_LIMITER_ELEVATED_VALUE_POST |
Default 40 | Number of POST requests allowed per RATE_LIMITER_PER_MILLIS milliseconds (for RATE_LIMITER_ELEVATED_ACCOUNTS) |
RATE_LIMITER_VALUE_PER_NODE |
Default 25 | Number of non-POST requests allowed per RATE_LIMITER_PER_MILLIS milliseconds for a given client |
RATE_LIMITER_VALUE_PER_NODE_POST |
Default 5 | Number of POST requests allowed per RATE_LIMITER_PER_MILLIS milliseconds for a given client |
RATE_LIMITER_PER_MILLIS |
Default 1000 | Rate limiter time window |
RATE_LIMITER_LOW_TRAFFIC_ACCOUNTS |
N/A | Comma-separated list of accounts to which ..._LOW_TRAFFIC_... limits apply (example: 5,6,7) |
RATE_LIMITER_LOW_TRAFFIC_VALUE_GET |
Default 4500 | Number of non-POST requests allowed per RATE_LIMITER_LOW_TRAFFIC_PER_MILLIS in milliseconds for a given account (for RATE_LIMITER_LOW_TRAFFIC_ACCOUNTS) |
RATE_LIMITER_LOW_TRAFFIC_VALUE_POST |
Default 1 | Number of POST requests allowed per RATE_LIMITER_LOW_TRAFFIC_PER_MILLIS in milliseconds (for RATE_LIMITER_LOW_TRAFFIC_ACCOUNTS) |
RATE_LIMITER_LOW_TRAFFIC_PER_MILLIS |
Default 60000 | rate limit internal per RATE_LIMITER_LOW_TRAFFIC_PER_MILLIS (in milliseconds) for RATE_LIMITER_LOW_TRAFFIC_ACCOUNTS |
Read our developer documentation for guidance on using the API.
For more detailed information you can use our OpenAPI specifiation.
- https://www.mock-server.com/ is used for mocking dependent services
GOV.UK Pay aims to stay secure for everyone. If you are a security researcher and have discovered a security vulnerability in this code, we appreciate your help in disclosing it to us in a responsible manner. Please refer to our vulnerability disclosure policy and our security.txt file for details.
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