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# openrtb
[![GoDoc](https://godoc.org/github.com/prebid/openrtb?status.svg)](https://godoc.org/github.com/prebid/openrtb)
[OpenRTB](//github.com/openrtb/OpenRTB) [v2.3.1](//github.com/openrtb/OpenRTB/blob/master/OpenRTB-API-Specification-Version-2-3-1-FINAL.pdf) types for Go programming language (golang)
# Using
```bash
go get -u "github.com/prebid/openrtb"
```
```go
import "github.com/prebid/openrtb"
```
# History
- Forked on April 23, 2017 from [mxmCherry](//github.com/mxmCherry/openrtb.v3)
- Updated Device, Geo to OpenRTB 2.5
# Goals
Provide base for OpenRTB-related projects, focusing on:
- Extensive documentation
- Strict specification (using unsigned numeric types for values, that are not meant to be signed; don't overuse pointers to avoid nil dereferencing etc.)
- Efficient memory usage (using numeric types large enough just to hold intended values etc.)
# Guidelines
## Naming convention
- [UpperCamelCase](http://en.wikipedia.org/wiki/CamelCase)
- Capitalized abbreviations (e.g., AT, COPPA, PMP etc.)
- Capitalized ID keys
## Types
- Key types should be chosen according to OpenRTB v2.5 specification (attribute types)
- Numeric types:
- architecture-independent, e.g., ```int32``` instead of ```int```
- signed integral types should be used only when absolutely needed (value may contain negative numbers), unsigned integral types are preferred
- but avoid `uint8` as it [has problems with JSON serialization](https://github.com/mxmCherry/openrtb/issues/3)
- enumerations should be represented with minimal integral types, e.g., ```int8``` for enumerations with <= 256 variants
- for floating-point attributes only ```float64``` type should be used
## Documentation
- [Godoc: documenting Go code](http://blog.golang.org/godoc-documenting-go-code)
- Each entity (type or struct key) should be documented
- Comments for entities should be copy-pasted "as-is" from OpenRTB specification
## Code organization
- Each RTB type should be kept in its own file, named after type
- File names are in underscore_case, e.g., ```type BidRequest``` should be declared in ```bid_request.go```
- [go fmt your code](https://blog.golang.org/go-fmt-your-code)
# TODO
- [ ] OpenRTB 2.5 compliance ([specs](http://www.iab.com/wp-content/uploads/2016/03/OpenRTB-API-Specification-Version-2-5-FINAL.pdf))
- [ ] Review time/duration types, use `int64` for easier [time](https://golang.org/pkg/time/) conversion (requires major version bump)
- [ ] Review enum types (some experiments are in [next](https://github.com/mxmCherry/openrtb/tree/next) branch)