Write FHIR data to Parquet files

Writes the data from a data source to a directory of Parquet files.

ds_write_parquet(ds, path, save_mode = SaveMode$ERROR)

Arguments

ds

The DataSource object.

path

The URI of the directory to write the files to.

save_mode

The save mode to use when writing the data.

Value

A list with element file_infos, containing a list of files created. Each file has fhir_resource_type and absolute_url.

See also

Pathling documentation - Writing Parquet

Other data sink functions: ds_write_delta(), ds_write_ndjson(), ds_write_tables()

Examples

pc <- pathling_connect()
data_source <- pc %>% pathling_read_ndjson(pathling_examples("ndjson"))

# Write the data to a directory of Parquet files.
data_source %>% ds_write_parquet(file.path(tempdir(), "parquet"))
#> $file_infos
#> $file_infos[[1]]
#> $file_infos[[1]]$fhir_resource_type
#> [1] "Condition"
#> 
#> $file_infos[[1]]$absolute_url
#> [1] "/tmp/Rtmpp0823Q/parquet/Condition.00000.parquet"
#> 
#> 
#> $file_infos[[2]]
#> $file_infos[[2]]$fhir_resource_type
#> [1] "Patient"
#> 
#> $file_infos[[2]]$absolute_url
#> [1] "/tmp/Rtmpp0823Q/parquet/Patient.00000.parquet"
#> 
#> 
#> 

pathling_disconnect(pc)