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convex/myFunctions.ts

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+import { v } from "convex/values";
+import { query, mutation, action } from "./_generated/server";
+import { api } from "./_generated/api";
+import { getAuthUserId } from "@convex-dev/auth/server";
+
+// Write your Convex functions in any file inside this directory (`convex`).
+// See https://docs.convex.dev/functions for more.
+
+// You can read data from the database via a query:
+export const listNumbers = query({
+  // Validators for arguments.
+  args: {
+    count: v.number(),
+  },
+
+  // Query implementation.
+  handler: async (ctx, args) => {
+    //// Read the database as many times as you need here.
+    //// See https://docs.convex.dev/database/reading-data.
+    const numbers = await ctx.db
+      .query("numbers")
+      // Ordered by _creationTime, return most recent
+      .order("desc")
+      .take(args.count);
+    const userId = await getAuthUserId(ctx);
+    const user = userId === null ? null : await ctx.db.get(userId);
+    return {
+      viewer: user?.email ?? null,
+      numbers: numbers.reverse().map((number) => number.value),
+    };
+  },
+});
+
+// You can write data to the database via a mutation:
+export const addNumber = mutation({
+  // Validators for arguments.
+  args: {
+    value: v.number(),
+  },
+
+  // Mutation implementation.
+  handler: async (ctx, args) => {
+    //// Insert or modify documents in the database here.
+    //// Mutations can also read from the database like queries.
+    //// See https://docs.convex.dev/database/writing-data.
+
+    const id = await ctx.db.insert("numbers", { value: args.value });
+
+    console.log("Added new document with id:", id);
+    // Optionally, return a value from your mutation.
+    // return id;
+  },
+});
+
+// You can fetch data from and send data to third-party APIs via an action:
+export const myAction = action({
+  // Validators for arguments.
+  args: {
+    first: v.number(),
+    second: v.string(),
+  },
+
+  // Action implementation.
+  handler: async (ctx, args) => {
+    //// Use the browser-like `fetch` API to send HTTP requests.
+    //// See https://docs.convex.dev/functions/actions#calling-third-party-apis-and-using-npm-packages.
+    // const response = await ctx.fetch("https://api.thirdpartyservice.com");
+    // const data = await response.json();
+
+    //// Query data by running Convex queries.
+    const data = await ctx.runQuery(api.myFunctions.listNumbers, {
+      count: 10,
+    });
+    console.log(data);
+
+    //// Write data by running Convex mutations.
+    await ctx.runMutation(api.myFunctions.addNumber, {
+      value: args.first,
+    });
+  },
+});