# AvroUtils
Utility library to convert struct to BigQuery compatible json based on
avro schema
### Avro Type Conversion
#### Primitive Types
| Avro | BigQuery |
|---------|---------------|
| null | not supported |
| boolean | BOOLEAN |
| int | INTEGER |
| long | INTEGER |
| float | FLOAT |
| double | FLOAT |
| bytes | BYTES |
| string | STRING |
#### Complex Types
| Avro | BigQuery |
|--------|---------------------------------------------------------------------|
| record | RECORD |
| enum | STRING |
| array | REPEATED |
| map | REAPEATED RECORD with key and value |
| union | only supports union with max 2 options and max 1 non nullable type. |
| fixed | BYTES |
#### Logical Types
| Avro | BigQuery |
|------------------|-----------|
| time-millis | TIME |
| time-micros | TIME |
| timestamp-millis | TIMESTAMP |
| timestamp-micros | TIMESTAMP |
#### bq.transform
| Avro | BigQuery |
|------------------------------------------------------------------------------------------------|---------------------------------------------------------------------|
| `{"name": "created_at", "type": { "type": "string", "bq.transform": "iso8601_to_timestamp" }}` | `{ "mode": "REQUIRED", "name": "created_at", "type": "TIMESTAMP" }` |
| `{"name": "detail","type": { "type": "string", "bq.transform": "any_to_json" }}` | `{ "mode": "REQUIRED", "name": "detail", "type": "STRING" }` |
#### bq.source_name
| Avro | BigQuery |
|-------------------------------------------------------------------------------------|-----------------------------------------------------------------|
| `{"name": "full_name","type": { "type": "string", "bq.source_name": "full-name" }}` | `{ "mode": "REQUIRED", "name": "full_name", "type": "STRING" }` |
