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https://github.com/naomijub/brcode
PIX BR Code Parser for Rust
https://github.com/naomijub/brcode
brcode pix
Last synced: 17 days ago
JSON representation
PIX BR Code Parser for Rust
- Host: GitHub
- URL: https://github.com/naomijub/brcode
- Owner: naomijub
- License: lgpl-3.0
- Created: 2020-09-10T20:36:36.000Z (about 4 years ago)
- Default Branch: master
- Last Pushed: 2024-02-23T17:00:16.000Z (9 months ago)
- Last Synced: 2024-05-01T15:47:15.686Z (7 months ago)
- Topics: brcode, pix
- Language: Rust
- Homepage: https://crates.io/crates/brcode
- Size: 25 MB
- Stars: 63
- Watchers: 5
- Forks: 3
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- Funding: .github/FUNDING.yml
- License: LICENSE
Awesome Lists containing this project
README
# BR Code
[](https://codecov.io/gh/naomijub/brcode)
A crate to parse and emit [PIX BR Code](https://www.bcb.gov.br/content/estabilidadefinanceira/spb_docs/ManualBRCode.pdf).
* [Technical and Business specs for BR Code usage](https://www.bcb.gov.br/content/estabilidadefinanceira/forumpireunioes/Anexo%20I%20-%20QRCodes%20-%20Especifica%C3%A7%C3%A3o%20-%20vers%C3%A3o%201-1.pdf)
## Important Changes
* Version `1.2` has a small break for a `BrCode` field. [PR](https://github.com/naomijub/brcode/pull/14) fixes `model::BrCode` field `initiation_method` naming.
## Usage
```toml
[dependencies]
brcode = "1.4.2"
```
### Build from source
1. Install [rustup](https://rustup.rs/).
2. `make build-macos` for macos and ios files or `make build-linux` for linux and android files.
3. Files will be located at `target/release/libbrcode.*`, `target//release/libbrcode.so`.
4. Copy them to the root of your project.
5. For JVM it is important to run `export LD_LIBRARY_PATH=.` at the root of the project
### Copy files from Github Release
Shellscript to get files from release:
**So**
```sh
curl -s https://api.github.com/repos/naomijub/brcode/releases/latest \
| grep "browser_download_url.*so" \
| cut -d : -f 2,3 \
| tr -d \" \
| wget -qi -
```
**dylib**
```sh
curl -s https://api.github.com/repos/naomijub/brcode/releases/latest \
| grep "browser_download_url.*dylib" \
| cut -d : -f 2,3 \
| tr -d \" \
| wget -qi -
```
## Example
**Parse String**
```rust
use brcode::{from_str, Data};
fn main() {
let code = "00020104141234567890123426580014BR.GOV.BCB.PIX0136123e4567-e12b-12d1-a456-42665544000027300012BR.COM.OUTRO011001234567895204000053039865406123.455802BR5917NOME DO RECEBEDOR6008BRASILIA61087007490062190515RP12345678-201980390012BR.COM.OUTRO01190123.ABCD.3456.WXYZ6304AD38";
assert_eq!(from_str(code), expected());
}
fn expected() -> Vec<(usize, Data)> {
vec![
(0, Data::Single("01".to_string())),
(4, Data::Single("12345678901234".to_string())),
(26, Data::Vector(vec![
(0, Data::Single("BR.GOV.BCB.PIX".to_string())),
(1, Data::Single("123e4567-e12b-12d1-a456-426655440000".to_string()))])),
(27, Data::Vector(vec![
(0, Data::Single("BR.COM.OUTRO".to_string())),
(1, Data::Single("0123456789".to_string()))])),
(52, Data::Single("0000".to_string())),
(53, Data::Single("986".to_string())),
(54, Data::Single("123.45".to_string())),
(58, Data::Single("BR".to_string())),
(59, Data::Single("NOME DO RECEBEDOR".to_string())),
(60, Data::Single("BRASILIA".to_string())),
(61, Data::Single("70074900".to_string())),
(62, Data::Vector(vec![
(5, Data::Single("RP12345678-2019".to_string()))])),
(80, Data::Vector(vec![(
0, Data::Single("BR.COM.OUTRO".to_string())),
(1, Data::Single("0123.ABCD.3456.WXYZ".to_string()))])),
(63, Data::Single("AD38".to_string()))]
}
```
**str_to_brcode**
```rust
use brcode::{str_to_brcode, BrCode, Template, Info, MerchantInfo, Label};
fn main() {
let code = "00020104141234567890123426580014BR.GOV.BCB.PIX0136123e4567-e12b-12d1-a456-42665544000027300012BR.COM.OUTRO011001234567895204000053039865406123.455802BR5917NOME DO RECEBEDOR6008BRASILIA61087007490062190515RP12345678-201980390012BR.COM.OUTRO01190123.ABCD.3456.WXYZ6304AD38";
assert_eq!(from_str(code), expected());
}
fn expected() -> BrCode {
BrCode {
payload_version: 1,
initiation_method: None,
merchant_category_code: 0000u32,
merchant_name: "NOME DO RECEBEDOR".to_string(),
merchant_city: "BRASILIA".to_string(),
merchant_information: vec![
MerchantInfo {
id: 26,
info: vec![
Info {
id: 0,
info: "BR.GOV.BCB.PIX".to_string(),
},
Info {
id: 1,
info: "123e4567-e12b-12d1-a456-426655440000".to_string(),
},
],
},
MerchantInfo {
id: 27,
info: vec![
Info {
id: 0,
info: "BR.COM.OUTRO".to_string(),
},
Info {
id: 1,
info: "0123456789".to_string(),
},
],
},
],
currency: "986".to_string(),
postal_code: Some("70074900".to_string()),
amount: Some(123.45),
country_code: "BR".to_string(),
field_template: vec![Label {
reference_label: "RP12345678-2019".to_string(),
}],
crc1610: "AD38".to_string(),
templates: Some(vec![Template {
id: 80usize,
info: vec![
Info {
id: 0usize,
info: "BR.COM.OUTRO".to_string(),
},
Info {
id: 1usize,
info: "0123.ABCD.3456.WXYZ".to_string(),
},
],
}]),
}
}
```
**brcode::to_string** from `Vec<(usize, Data)>`:
```rust
use brcode::{
self, BrCode,
};
fn main() {
let actual = brcode::to_string(brcode_vec());
let code = "00020104141234567890123426580014BR.GOV.BCB.PIX0136123e4567-e12b-12d1-a456-42665544000027300012BR.COM.OUTRO011001234567895204000053039865406123.455802BR5917NOME DO RECEBEDOR6008BRASILIA61087007490062190515RP12345678-201980390012BR.COM.OUTRO01190123.ABCD.3456.WXYZ6304AD38";
assert_eq!(actual, code);
}
fn brcode_vec() -> Vec<(usize, Data)> {
vec![
(0, Data::Single("01".to_string())),
(4, Data::Single("12345678901234".to_string())),
(
26,
Data::Vector(vec![
(0, Data::Single("BR.GOV.BCB.PIX".to_string())),
(
1,
Data::Single("123e4567-e12b-12d1-a456-426655440000".to_string()),
),
]),
),
(
27,
Data::Vector(vec![
(0, Data::Single("BR.COM.OUTRO".to_string())),
(1, Data::Single("0123456789".to_string())),
]),
),
(52, Data::Single("0000".to_string())),
(53, Data::Single("986".to_string())),
(54, Data::Single("123.45".to_string())),
(58, Data::Single("BR".to_string())),
(59, Data::Single("NOME DO RECEBEDOR".to_string())),
(60, Data::Single("BRASILIA".to_string())),
(61, Data::Single("70074900".to_string())),
(
62,
Data::Vector(vec![(5, Data::Single("RP12345678-2019".to_string()))]),
),
(
80,
Data::Vector(vec![
(0, Data::Single("BR.COM.OUTRO".to_string())),
(1, Data::Single("0123.ABCD.3456.WXYZ".to_string())),
]),
),
(63, Data::Single("AD38".to_string())),
]
}
```
**brcode::brcode_to_string** for struct `BrCode`:
```rust
use brcode::{
self, BrCode,
};
fn main() {
let actual = brcode::brcode_to_string(brcode_value());
let code = "00020104141234567890123426580014BR.GOV.BCB.PIX0136123e4567-e12b-12d1-a456-42665544000027300012BR.COM.OUTRO011001234567895204000053039865406123.455802BR5917NOME DO RECEBEDOR6008BRASILIA61087007490062190515RP12345678-201980390012BR.COM.OUTRO01190123.ABCD.3456.WXYZ6304AD38";
assert_eq!(actual, code);
}
fn brcode_value() -> BrCode {
BrCode {
payload_version: 1,
initiation_method: None,
merchant_account_information: Some(String::from("12345678901234")),
merchant_category_code: 0000u32,
merchant_name: "NOME DO RECEBEDOR".to_string(),
merchant_city: "BRASILIA".to_string(),
merchant_information: vec![
MerchantInfo {
id: 26,
info: vec![
Info {
id: 0,
info: "BR.GOV.BCB.PIX".to_string(),
},
Info {
id: 1,
info: "123e4567-e12b-12d1-a456-426655440000".to_string(),
},
],
},
MerchantInfo {
id: 27,
info: vec![
Info {
id: 0,
info: "BR.COM.OUTRO".to_string(),
},
Info {
id: 1,
info: "0123456789".to_string(),
},
],
},
],
currency: "986".to_string(),
postal_code: Some("70074900".to_string()),
amount: Some(123.45),
country_code: "BR".to_string(),
field_template: vec![Label {
reference_label: "RP12345678-2019".to_string(),
}],
crc1610: "AD38".to_string(),
templates: Some(vec![Template {
id: 80usize,
info: vec![
Info {
id: 0usize,
info: "BR.COM.OUTRO".to_string(),
},
Info {
id: 1usize,
info: "0123.ABCD.3456.WXYZ".to_string(),
},
],
}]),
}
}
```
### **`BrCode` functions** context related
* `pub fn is_pix(&self) -> bool` determines if BrCode is a `PIX` transaction.
* `pub fn get_transaction_id(&self) -> Option` gets `transaction_id` value (field 5 of item 65).
* `pub fn get_alias(&self) -> Option>` gets all possible values for PIX aliases. Usually only field 1 of item 26 is valid. Checks if the alias if of type `"BR.GOV.BCB.PIX"`.
* `pub fn get_message(&self) -> Option>` gets all possible massages for PIX aliases. Usually only field 2 of item 26 is valid. Checks if the alias if of type `"BR.GOV.BCB.PIX"`.
### **`BrCode` functions** QrCode generation related:
* `to_svg_string(&self, ecc: QrCodeEcc, size: usize) -> String` generates a SVG xml in a String.
* `to_svg_standard_string(&self) -> String` generates a SVG xml in a String with `QrCodeEcc::Low` and `size = 1024`.
* `to_vec_u8(&self, ecc: QrCodeEcc, size: usize) -> Vec` generates a PNG formatted in `Vec`.
* `to_svg_file(&self, file_path: &str, ecc: QrCodeEcc, size: usize)` creates a QR Code in format `.svg` located at file path `file_path`.
* `to_standard_svg_file(&self, file_path: &str)` creates a QR Code in format `.svg` located at file path `file_path` with `QrCodeEcc::Low` and `size = 1024`.
* `to_png_file(&self, file_path: &str, ecc: QrCodeEcc, size: usize)` creates a QR Code in format `.png` located at file path `file_path`.
* `file_path` examples are `tests/data/file_output.png` and `tests/data/file_output.svg` from the project root. If directory doesn't exist an error will be thrown.
* `QrCodeEcc` is the error correction level in a QR Code symbol and `size` is the image size.
* `QrCodeEcc::Low` The QR Code can tolerate about 7% erroneous codewords.
* `QrCodeEcc::Medium` The QR Code can tolerate about 15% erroneous codewords.
* `QrCodeEcc::Quartile` The QR Code can tolerate about 25% erroneous codewords.
* `QrCodeEcc::High` The QR Code can tolerate about 30% erroneous codewords.
## Benchmark
**from_str** in `benches/parse.rs`
```
time: [15.734 us 15.758 us 15.782 us]
```
**str_to_brcode** in `benches/to_brcode`
```
time: [24.886 us 24.931 us 24.977 us]
```
**edn_from_brcode** in `benches/to_brcode`
```
time: [52.670 us 52.795 us 52.929 us]
```
**json_from_brcode** in `benches/to_brcode`
```
time: [28.229 us 28.284 us 28.339 us]
```
**both-ways using `BrCode`**
```
time: [33.238 us 33.555 us 33.924 us]
```
**both-ways using `Vec<(usize, Data)>`**
```
time: [22.867 us 22.958 us 23.107 us]
```
**crc16_ccitt** in `benches/crc16`:
```
time: [3.0738 us 3.0825 us 3.0938 us]
```
## FFI
### Clojure FFI
[DOCS](https://github.com/naomijub/brcode/blob/master/clj-brcode/README.md)
**BR Code as Edn** call function FFI `edn_from_brcode` or use clojar `[clj-brcode "1.1.0-SNAPSHOT"]`. Example:
```clojure
(ns example.core
(:require [clj-brcode.core :refer :all]))
(def code "00020104141234567890123426580014BR.GOV.BCB.PIX0136123e4567-e12b-12d1-a456-42665544000027300012BR.COM.OUTRO011001234567895204000053039865406123.455802BR5917NOME DO RECEBEDOR6008BRASILIA61087007490062190515RP12345678-201980390012BR.COM.OUTRO01190123.ABCD.3456.WXYZ6304AD38")
(brcode->edn code)
; {:payload-version 1, :initiation-method nil, :merchant-information [{:id 26, :info [{:id 0, :info "BR.GOV.BCB.PIX"}, {:id 1, :info "123e4567-e12b-12d1-a456-426655440000"}]}, {:id 27, :info [{:id 0, :info "BR.COM.OUTRO"}, {:id 1, :info "0123456789"}]}], :merchant-category-code 0, :merchant-name "NOME DO RECEBEDOR", :merchant-city "BRASILIA", :postal-code "70074900", :currency "986", :amount 123.45, :country-code "BR", :field-template [{:reference-label "RP12345678-2019"}], :crc1610 "AD38", :templates [{:id 80, :info [{:id 0, :info "BR.COM.OUTRO"}, {:id 1, :info "0123.ABCD.3456.WXYZ"}]}]}
```
Input:
```rust
"00020104141234567890123426580014BR.GOV.BCB.PIX0136123e4567-e12b-12d1-a456-42665544000027300012BR.COM.OUTRO011001234567895204000053039865406123.455802BR5917NOME DO RECEBEDOR6008BRASILIA61087007490062190515RP12345678-201980390012BR.COM.OUTRO01190123.ABCD.3456.WXYZ6304AD38"
```
Expected Edn:
```clojure
{:payload-version 1,:initiation-method nil, :merchant-information [
{:id 26, :info [{ :id 0, :info "BR.GOV.BCB.PIX",}, {:id 1, :info "123e4567-e12b-12d1-a456-426655440000",}]},
{:id 27, :info [{ :id 0, :info "BR.COM.OUTRO",}, {:id 1, :info "0123456789",}]}
],:merchant-category-code 0, :merchant-name "NOME DO RECEBEDOR", :merchant-city "BRASILIA",
:postal-code "70074900", :currency "986", :amount 123.45, :country-code "BR",
:field-template [{ :reference-label "RP12345678-2019", }], :crc1610 "AD38", :templates [
{ :id 80, :info [{ :id 0, :info "BR.COM.OUTRO", },{ :id 1, :info "0123.ABCD.3456.WXYZ", }], }]
}
```
**Edn as BR Code** call function FFI `edn_to_brcode` or use clojar `[clj-brcode "1.1.0-SNAPSHOT"]`. Example:
```clojure
(ns example.core
(:require [clj-brcode.core :refer :all]))
(def edn {:payload-version 1, :initiation-method nil, :merchant-information [{:id 26, :info [{:id 0, :info "BR.GOV.BCB.PIX"}, {:id 1, :info "123e4567-e12b-12d1-a456-426655440000"}]}, {:id 27, :info [{:id 0, :info "BR.COM.OUTRO"}, {:id 1, :info "0123456789"}]}], :merchant-category-code 0, :merchant-name "NOME DO RECEBEDOR", :merchant-city "BRASILIA", :postal-code "70074900", :currency "986", :amount 123.45, :country-code "BR", :field-template [{:reference-label "RP12345678-2019"}], :crc1610 "AD38", :templates [{:id 80, :info [{:id 0, :info "BR.COM.OUTRO"}, {:id 1, :info "0123.ABCD.3456.WXYZ"}]}]})
(brcode->edn edn)
; "00020104141234567890123426580014BR.GOV.BCB.PIX0136123e4567-e12b-12d1-a456-42665544000027300012BR.COM.OUTRO011001234567895204000053039865406123.455802BR5917NOME DO RECEBEDOR6008BRASILIA61087007490062190515RP12345678-201980390012BR.COM.OUTRO01190123.ABCD.3456.WXYZ6304AD38"
```
**Other available functions**:
- `json->brcode`
- `brcode->json`
- `crc16-ccitt`
### Clojure Benchmark with Criterium
**brcode->edn**
```
Evaluation count : 4644 in 6 samples of 774 calls.
Execution time mean : 131.416626 µs
Execution time std-deviation : 2.218919 µs
Execution time lower quantile : 130.073353 µs ( 2.5%)
Execution time upper quantile : 135.212868 µs (97.5%)
Overhead used : 8.079635 ns
```
**edn->brcode**
```
Evaluation count : 3816 in 6 samples of 636 calls.
Execution time mean : 157.407924 µs
Execution time std-deviation : 3.556917 µs
Execution time lower quantile : 154.338082 µs ( 2.5%)
Execution time upper quantile : 162.800564 µs (97.5%)
Overhead used : 8.102766 ns
```
**(-> brcode brcode->edn edn->brcode)**
```
Evaluation count : 1920 in 6 samples of 320 calls.
Execution time mean : 344.903181 µs
Execution time std-deviation : 26.518055 µs
Execution time lower quantile : 328.923528 µs ( 2.5%)
Execution time upper quantile : 390.059255 µs (97.5%)
Overhead used : 8.071450 ns
```
### Node FFI
[neon-brcode](https://github.com/naomijub/neon-brcode)
### Dart FFI
[DOCS](https://github.com/naomijub/brcode/blob/master/dartbrcode/README.md)
**Parse**
```dart
import 'package:dartbrcode/dartbrcode.dart';
final json = '{"payload_version":1,"initiation_method":null,"merchant_account_information":"12345678901234","merchant_information":[{"id":26,"info":[{"id":0,"info":"BR.GOV.BCB.PIX"},{"id":1,"info":"123e4567-e12b-12d1-a456-426655440000"}]},{"id":27,"info":[{"id":0,"info":"BR.COM.OUTRO"},{"id":1,"info":"0123456789"}]}],"merchant_category_code":0,"merchant_name":"NOME DO RECEBEDOR","merchant_city":"BRASILIA","postal_code":"70074900","currency":"986","amount":123.45,"country_code":"BR","field_template":[{"reference_label":"RP12345678-2019"}],"crc1610":"AD38","templates":[{"id":80,"info":[{"id":0,"info":"BR.COM.OUTRO"},{"id":1,"info":"0123.ABCD.3456.WXYZ"}]}]}';
void main() {
jsonToBrcode(json);
// '00020104141234567890123426580014BR.GOV.BCB.PIX0136123e4567-e12b-12d1-a456-42665544000027300012BR.COM.OUTRO011001234567895204000053039865406123.455802BR5917NOME DO RECEBEDOR6008BRASILIA61087007490062190515RP12345678-201980390012BR.COM.OUTRO01190123.ABCD.3456.WXYZ6304AD38'
}
```
**Emit**
```dart
import 'package:dartbrcode/dartbrcode.dart';
final brcode = '00020104141234567890123426580014BR.GOV.BCB.PIX0136123e4567-e12b-12d1-a456-42665544000027300012BR.COM.OUTRO011001234567895204000053039865406123.455802BR5917NOME DO RECEBEDOR6008BRASILIA61087007490062190515RP12345678-201980390012BR.COM.OUTRO01190123.ABCD.3456.WXYZ6304AD38';
void main() {
jsonFromBrcode(brcode);
// '{"payload_version":1,"initiation_method":null,"merchant_account_information":"12345678901234","merchant_information":[{"id":26,"info":[{"id":0,"info":"BR.GOV.BCB.PIX"},{"id":1,"info":"123e4567-e12b-12d1-a456-426655440000"}]},{"id":27,"info":[{"id":0,"info":"BR.COM.OUTRO"},{"id":1,"info":"0123456789"}]}],"merchant_category_code":0,"merchant_name":"NOME DO RECEBEDOR","merchant_city":"BRASILIA","postal_code":"70074900","currency":"986","amount":123.45,"country_code":"BR","field_template":[{"reference_label":"RP12345678-2019"}],"crc1610":"AD38","templates":[{"id":80,"info":[{"id":0,"info":"BR.COM.OUTRO"},{"id":1,"info":"0123.ABCD.3456.WXYZ"}]}]}'
}
```
**Other available functions**:
- `crc16Ccitt`
### Benchmarks
* with `dart_benchmark`
**jsonToBrcode**
```
For 100 runs: peak: 371 us, bottom: 048 us, avg: ~083 us
```
**brcodeToJson**
```
For 100 runs: peak: 327 us, bottom: 069 us, avg: ~101 us
```
* with `benchmark_harness`
**jsonToBrcode**
```
For 10 runs: 207.51774227018055 us.
```
**brcodeToJson**
```
For 10 runs: 378.68780764861793 us.
```
## Goals
- [x] Parse BR Code String to `Vec<(usize, Data)>` (more flexible solution);
- [x] Parse BR Code to `BrCode` struct;
- [x] Emit BR Code from `Vec<(usize, Data)>`;
- [x] Emit BR Code from `BrCode` struct;
- [x] CRC16_CCITT
- [x] FFI