Merge pull request #6 from jonatanrdsantos/add-cobranca

Add "cobranca boleto" to the sdk

Author: brunoocasali

.github/workflows/test.yml

@@ -0,0 +1,43 @@
+name: Test
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  test:
+    name: Test
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Set up Elixir
+      uses: erlef/setup-beam@v1
+      with:
+        elixir-version: '1.15.7' # Set this to the version you use
+        otp-version: '26.2.1' # Set this to the version you use
+
+    - name: Restore dependencies cache
+      uses: actions/cache@v3
+      with:
+        path: |
+          deps
+          _build
+        key: ${{ runner.os }}-mix-${{ hashFiles('**/mix.lock') }}
+        restore-keys: ${{ runner.os }}-mix-
+
+    - name: Install dependencies
+      run: mix deps.get
+
+    - name: Run tests
+      run: mix test
+      env:
+        # Add any environment variables your tests need here
+        INTER_CLIENT_ID: ${{ secrets.INTER_CLIENT_ID }}
+        INTER_CLIENT_SECRET: ${{ secrets.INTER_CLIENT_SECRET }}
+        INTER_SCOPE: ${{ secrets.INTER_SCOPE }}
+        INTER_API_CERT: ${{ secrets.INTER_API_CERT }}
+        INTER_API_KEY: ${{ secrets.INTER_API_KEY }} 

.gitignore

@@ -24,3 +24,6 @@ inter-*.tar
 
 # Temporary files, for example, from tests.
 /tmp/
+
+.env
+config

CONTRIBUTING.md

@@ -0,0 +1,7 @@
+To execute the container locally, please create a new integration in the https://developers.inter.co/sandbox/my-integrations download the key and cert, rename the files and put inside a folder called `config` like:
+
+elixir-inder-sdk/
+├── docker-compose.yml
+├── config/
+    ├── certificate.crt
+    └── certificate.key

Dockerfile.dev

@@ -1,4 +1,4 @@
-FROM elixir:1.15
+FROM elixir:1.17
 
 RUN apt-get update && \
     apt-get install -y inotify-tools && \

docker-compose.yml

@@ -6,3 +6,8 @@ services:
     command: "bash"
     volumes:
       - .:/app
+      - ./config/certificate.crt:/secrets/certificate.crt:ro
+      - ./config/certificate.key:/secrets/certificate.key:ro
+    entrypoint: ./entrypoint.sh
+    env_file: 
+      - .env

entrypoint.sh

@@ -0,0 +1,6 @@
+#!/bin/sh
+
+export INTER_API_CERT="$(cat /secrets/certificate.crt)"
+export INTER_API_KEY="$(cat /secrets/certificate.key)"
+
+exec "$@"

lib/inter.ex

@@ -17,6 +17,18 @@ defmodule Inter do
     end
   end
 
+  def cobranca_charge(%Inter.Client{} = client, %Inter.Cobranca.Charge.Request{} = request) do
+    client
+    |> Inter.Client.token()
+    |> Inter.Client.cobranca_charge(request)
+  end
+
+  def get_cobranca(%Inter.Client{} = client, cod, conta_corrente) do
+    case cod do
+      _ -> client |> Inter.Client.token() |> Inter.Client.get_cobranca(cod, conta_corrente)
+    end
+  end
+
   def pix_qr_code(%Inter.Client{} = client) do
     case client.response do
       %Inter.Pix.Charge.Response{} = response ->

lib/inter/client.ex

@@ -31,10 +31,19 @@ defmodule Inter.Client do
          key_file: "key_file"
        }
   """
-  def new(client_id, client_secret, scope, grant_type, cert_file, key_file) do
+  def new(
+        client_id,
+        client_secret,
+        scope,
+        grant_type,
+        cert_file,
+        key_file,
+        url \\ "https://cdpj.partners.bancointer.com.br/"
+      ) do
     {type, encoded, _atom} = key_file |> :public_key.pem_decode() |> hd()
 
     %__MODULE__{
+      base_url: url,
       client_id: client_id,
       client_secret: client_secret,
       scope: scope,
@@ -117,6 +126,49 @@ defmodule Inter.Client do
     }
   end
 
+  def get_cobranca(%__MODULE__{} = client, cod, conta_corrente) do
+    headers = [
+      {"Content-Type", "application/json"},
+      {"Authorization", "Bearer " <> client.token.access_token},
+      {"X-Conta-Corrente", conta_corrente}
+    ]
+
+    response =
+      HTTPoison.get(
+        client.base_url <> "cobranca/v3/cobrancas/#{cod}",
+        headers,
+        client.request_options
+      )
+
+    %__MODULE__{
+      client
+      | request: %{},
+        response: handle_response(response, Inter.Cobranca.Charge.Response)
+    }
+  end
+
+  def cobranca_charge(%__MODULE__{} = client, %Inter.Cobranca.Charge.Request{} = request) do
+    headers = [
+      {"Content-Type", "application/json"},
+      {"Authorization", "Bearer " <> client.token.access_token},
+      {"X-Conta-Corrente", request.contaCorrente}
+    ]
+
+    response =
+      HTTPoison.post(
+        client.base_url <> "cobranca/v3/cobrancas",
+        Poison.encode!(request |> Nestru.encode!()),
+        headers,
+        client.request_options
+      )
+
+    %__MODULE__{
+      client
+      | request: request,
+        response: handle_response(response, Inter.Cobranca.Charge.Response.SimpleResponse)
+    }
+  end
+
   defp handle_response({:ok, %HTTPoison.Response{status_code: 200, body: body}}, type),
     do: body |> Jason.decode!() |> Nestru.decode!(type)
 
@@ -129,5 +181,14 @@ defmodule Inter.Client do
        ),
        do: {:error, body, response}
 
+  defp handle_response(
+         {:ok, %HTTPoison.Response{status_code: 400, body: body}} = response,
+         _type
+       ),
+       do: {:error, body |> Jason.decode!(), response}
+
+  defp handle_response({:ok, %HTTPoison.Response{status_code: 429}} = response, _type),
+    do: {:error, "You've been rate-limited, try again later (429 error)", response}
+
   defp handle_response(response, _type), do: {:error, "Failed to obtain OAuth token", response}
 end

lib/inter/cobranca/charge/request.ex

@@ -0,0 +1,37 @@
+defmodule Inter.Cobranca.Charge.Request do
+  @moduledoc """
+  Documentation for `Inter.Cobranca.Charge.Request`.
+  """
+
+  @derive [
+    {Nestru.Encoder,
+     hint: %{
+       pagador: Inter.Cobranca.Charge.Request.Pagador,
+       desconto: Inter.Cobranca.Charge.Request.Desconto,
+       multa: Inter.Cobranca.Charge.Request.Multa,
+       mora: Inter.Cobranca.Charge.Request.Mora,
+       mensagem: Inter.Cobranca.Charge.Request.Mensagem,
+       beneficiarioFinal: Inter.Cobranca.Charge.Request.BeneficiarioFinal
+     }},
+    {Nestru.Decoder,
+     hint: %{
+       pagador: Inter.Cobranca.Charge.Request.Pagador,
+       desconto: Inter.Cobranca.Charge.Request.Desconto,
+       multa: Inter.Cobranca.Charge.Request.Multa,
+       mora: Inter.Cobranca.Charge.Request.Mora,
+       mensagem: Inter.Cobranca.Charge.Request.Mensagem,
+       beneficiarioFinal: Inter.Cobranca.Charge.Request.BeneficiarioFinal
+     }}
+  ]
+  defstruct contaCorrente: nil,
+            seuNumero: nil,
+            valorNominal: nil,
+            dataVencimento: nil,
+            numDiasAgenda: nil,
+            pagador: nil,
+            desconto: nil,
+            multa: nil,
+            mora: nil,
+            mensagem: nil,
+            beneficiarioFinal: nil
+end

lib/inter/cobranca/charge/request/beneficiario_final.ex

@@ -0,0 +1,15 @@
+defmodule Inter.Cobranca.Charge.Request.BeneficiarioFinal do
+  @moduledoc """
+  Documentation for `Inter.Cobranca.Charge.Request.BeneficiarioFinal`.
+  """
+
+  @derive [Nestru.Encoder, Nestru.Decoder]
+  defstruct cpfCnpj: nil,
+            tipoPessoa: nil,
+            nome: nil,
+            endereco: nil,
+            bairro: nil,
+            cidade: nil,
+            uf: nil,
+            cep: nil
+end