Persister Configuration
Persister Service persists data in the database in a sync manner providing very low latency. The queries which have to be used to insert/update data in the database are written in yaml file. The values which have to be inserted are extracted from the json using jsonPaths defined in the same yaml configuration. Below is a sample configuration which inserts data in a couple of tables.
The above configuration is used to insert data published on the kafka topic save-pgr-request in the tables eg_pgr_service_v2 and eg_pgr_address_v2. Similarly, the configuration can be written to update data. Following is a sample configuration:
The above configuration is used to update the data in tables. Similarly, the upsert operation can be done using ON CONFLICT() function in psql. Following table describe each field in the configuration.
Last updated