From 6536f38620a693795a7d73e79032105eebec963e Mon Sep 17 00:00:00 2001
From: Reilly Freret <reilly@with.co>
Date: Mon, 17 Nov 2025 17:43:29 -0500
Subject: [PATCH] adds template object to resend batch call

---
 src/client/index.ts     |  6 +++++-
 src/component/lib.ts    | 12 ++++++++++--
 src/component/schema.ts |  2 ++
 3 files changed, 17 insertions(+), 3 deletions(-)

diff --git a/src/client/index.ts b/src/client/index.ts
index 646b99f..2c9dfbd 100644
--- a/src/client/index.ts
+++ b/src/client/index.ts
@@ -147,6 +147,8 @@ export type SendEmailOptions = {
   subject: string;
   html?: string;
   text?: string;
+  template?: string;
+  variables?: Record<string, string>;
   replyTo?: string[];
   headers?: { name: string; value: string }[];
 };
@@ -271,7 +273,7 @@ export class Resend {
 
   async sendEmailManually(
     ctx: RunMutationCtx,
-    options: Omit<SendEmailOptions, "html" | "text">,
+    options: Omit<SendEmailOptions, "html" | "text" | "template" | "variables">,
     sendCallback: (emailId: EmailId) => Promise<string>,
   ): Promise<EmailId> {
     const emailId = (await ctx.runMutation(
@@ -367,6 +369,8 @@ export class Resend {
     createdAt: number;
     html?: string;
     text?: string;
+    template?: string;
+    variables?: Record<string, string>;
   } | null> {
     return await ctx.runQuery(this.component.lib.get, {
       emailId,
diff --git a/src/component/lib.ts b/src/component/lib.ts
index d6c7c63..834a013 100644
--- a/src/component/lib.ts
+++ b/src/component/lib.ts
@@ -87,6 +87,8 @@ export const sendEmail = mutation({
     html: v.optional(v.string()),
     text: v.optional(v.string()),
     replyTo: v.optional(v.array(v.string())),
+    template: v.optional(v.string()),
+    variables: v.optional(v.record(v.string(), v.string())),
     headers: v.optional(
       v.array(
         v.object({
@@ -106,8 +108,8 @@ export const sendEmail = mutation({
     }
 
     // We require either html or text to be provided. No body = no bueno.
-    if (args.html === undefined && args.text === undefined) {
-      throw new Error("Either html or text must be provided");
+    if (args.html === undefined && args.text === undefined && args.template === undefined) {
+      throw new Error("Either html, text, or template must be provided");
     }
 
     // Store the text/html into separate records to keep things fast and memory low when we work with email batches.
@@ -140,6 +142,8 @@ export const sendEmail = mutation({
       html: htmlContentId,
       text: textContentId,
       headers: args.headers,
+      template: args.template,
+      variables: args.variables,
       segment,
       status: "waiting",
       complained: false,
@@ -607,6 +611,10 @@ async function createResendBatchPayload(
           ]),
         )
       : undefined,
+    template: email.template ? { 
+      id: email.template,
+      variables: email.variables,
+    } : undefined,
   }));
 
   return [emails.map((e) => e._id), JSON.stringify(batchPayload)];
diff --git a/src/component/schema.ts b/src/component/schema.ts
index 00f4f8a..8a3d968 100644
--- a/src/component/schema.ts
+++ b/src/component/schema.ts
@@ -22,6 +22,8 @@ export default defineSchema({
     replyTo: v.array(v.string()),
     html: v.optional(v.id("content")),
     text: v.optional(v.id("content")),
+    template: v.optional(v.string()),
+    variables: v.optional(v.record(v.string(), v.string())),
     headers: v.optional(
       v.array(
         v.object({