healthconnectonfhir

// Initialize the mapper
val mapper = RecordToObservationMapperImpl()

// Query a `Record` from Health Connect
val record =  // ..
    
// Map the record to an HL7 FHIR Observation    
val observation = mapper.map(record)

// Initialize a `HealthConnectClient` (see Health Connect docs for full details)
val healthConnectClient = HealthConnectClient.getOrCreate(context)

// Define a time range for the query
val startTime = Instant.parse("2023-05-01T00:00:00Z")
val endTime = Instant.parse("2023-06-01T00:00:00Z")

// Query a list of `WeightRecord`s from Health Connect
val result = healthConnectClient.readRecords(
    ReadRecordsRequest(
        recordType = WeightRecord::class,
        timeRangeFilter = TimeRangeFilter.between(startTime, endTime)
    )
).records

// Initialize the mapper
val mapper = RecordToObservationMapperImpl()

// Convert each weight record to a FHIR Observation
result.forEach { weightRecord ->
    val observations = mapper.map(weightRecord)
    observations.forEach { observation ->
        // Do something with the observation
    }
}