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authorWilliam Carroll <wpcarro@gmail.com>2020-02-07T21·33+0000
committerWilliam Carroll <wpcarro@gmail.com>2020-02-07T21·33+0000
commit74211a3c029a157dbd9499b3fe1d29333a8a3a1d (patch)
tree93ef0d483b8ff5eb5f038f4a0f775844d203b241 /monzo_ynab/monzo
parent4f63b99cee4af6b5ba55dd2b821876c71dc7cf7d (diff)
Support serde for Monzo and YNAB transaction structs
Define transaction structs for both Monzo and YNAB. Each package has a `main`
function that runs some shallow but preliminary round-trip tests for the
serializers and decoders.

The fixtures.json file that each of them is referencing has been ignored in case
either contains confidential data of which I'm unaware.
Diffstat (limited to 'monzo_ynab/monzo')
-rw-r--r--monzo_ynab/monzo/serde.go82
1 files changed, 82 insertions, 0 deletions
diff --git a/monzo_ynab/monzo/serde.go b/monzo_ynab/monzo/serde.go
new file mode 100644
index 000000000000..a38585eca632
--- /dev/null
+++ b/monzo_ynab/monzo/serde.go
@@ -0,0 +1,82 @@
+// This package hosts the serialization and deserialization logic for all of the
+// data types with which our application interacts from the Monzo API.
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"io/ioutil"
+	"time"
+)
+
+type TxMetadata struct {
+	FasterPayment string `json:"faster_payment"`
+	FpsPaymentId  string `json:"fps_payment_id"`
+	Insertion     string `json:"insertion"`
+	Notes         string `json:"notes"`
+	Trn           string `json:"trn"`
+}
+
+type TxCounterparty struct {
+	AccountNumber string `json:"account_number"`
+	Name          string `json:"name"`
+	SortCode      string `json:"sort_code"`
+	UserId        string `json:"user_id"`
+}
+
+type Transaction struct {
+	Id                         string    `json:"id"`
+	Created                    time.Time `json:"created"`
+	Description                string    `json:"description"`
+	Amount                     int       `json:"amount"`
+	Currency                   string    `json:"currency"`
+	Notes                      string    `json:"notes"`
+	Metadata                   TxMetadata
+	AccountBalance             int            `json:"account_balance"`
+	International              interface{}    `json:"international"`
+	Category                   string         `json:"category"`
+	IsLoad                     bool           `json:"is_load"`
+	Settled                    time.Time      `json:"settled"`
+	LocalAmount                int            `json:"local_amount"`
+	LocalCurrency              string         `json:"local_currency"`
+	Updated                    time.Time      `json:"updated"`
+	AccountId                  string         `json:"account_id"`
+	UserId                     string         `json:"user_id"`
+	Counterparty               TxCounterparty `json:"counterparty"`
+	Scheme                     string         `json:"scheme"`
+	DedupeId                   string         `json:"dedupe_id"`
+	Originator                 bool           `json:"originator"`
+	IncludeInSpending          bool           `json:"include_in_spending"`
+	CanBeExcludedFromBreakdown bool           `json:"can_be_excluded_from_breakdown"`
+	CanBeMadeSubscription      bool           `json:"can_be_made_subscription"`
+	CanSplitTheBill            bool           `json:"can_split_the_bill"`
+	CanAddToTab                bool           `json:"can_add_to_tab"`
+	AmountIsPending            bool           `json:"amount_is_pending"`
+	// Fees interface{} `json:"fees"`
+	// Merchant interface `json:"merchant"`
+	// Labels interface{} `json:"labels"`
+	// Attachments interface{} `json:"attachments"`
+	// Categories interface{} `json:"categories"`
+}
+
+// Attempts to encode a Monzo transaction struct into a string.
+func serializeTx(tx *Transaction) (string, error) {
+	x, err := json.Marshal(tx)
+	return string(x), err
+}
+
+// Attempts to parse a string encoding a transaction presumably sent from a
+// Monzo server.
+func deserializeTx(x string) (*Transaction, error) {
+	target := &Transaction{}
+	err := json.Unmarshal([]byte(x), target)
+	return target, err
+}
+
+func main() {
+	b, _ := ioutil.ReadFile("./fixture.json")
+	tx := string(b)
+	target, _ := deserializeTx(tx)
+	out, _ := serializeTx(target)
+	fmt.Println(out)
+}