From cec77508214680405360dabac99f14fd4ba8a7b2 Mon Sep 17 00:00:00 2001
From: willclarktech <willclarktech@users.noreply.github.com>
Date: Tue, 15 Dec 2020 10:53:41 +0000
Subject: [PATCH] tendermint-rpc: Add encode method to DateTime

---
 packages/tendermint-rpc/src/encodings.ts     | 6 ++++++
 packages/tendermint-rpc/types/encodings.d.ts | 1 +
 2 files changed, 7 insertions(+)

diff --git a/packages/tendermint-rpc/src/encodings.ts b/packages/tendermint-rpc/src/encodings.ts
index 9266fcc1..aaab84a1 100644
--- a/packages/tendermint-rpc/src/encodings.ts
+++ b/packages/tendermint-rpc/src/encodings.ts
@@ -179,6 +179,12 @@ export class DateTime {
     (readonlyDate as any).nanoseconds = parseInt(nanoseconds.padEnd(6, "0"), 10);
     return readonlyDate as ReadonlyDateWithNanoseconds;
   }
+
+  public static encode(dateTime: ReadonlyDateWithNanoseconds): DateTimeString {
+    const millisecondIso = dateTime.toISOString();
+    const nanoseconds = dateTime.nanoseconds?.toString() ?? "";
+    return `${millisecondIso.slice(0, -1)}${nanoseconds.padStart(6, "0")}Z` as DateTimeString;
+  }
 }
 
 export class Hex {
diff --git a/packages/tendermint-rpc/types/encodings.d.ts b/packages/tendermint-rpc/types/encodings.d.ts
index cd004f17..83a48433 100644
--- a/packages/tendermint-rpc/types/encodings.d.ts
+++ b/packages/tendermint-rpc/types/encodings.d.ts
@@ -68,6 +68,7 @@ export declare class Base64 {
 }
 export declare class DateTime {
   static decode(dateTimeString: DateTimeString): ReadonlyDateWithNanoseconds;
+  static encode(dateTime: ReadonlyDateWithNanoseconds): DateTimeString;
 }
 export declare class Hex {
   static encode(data: Uint8Array): HexString;