simple-food-diary/api/saveUser/index.ts

import { AzureFunction, Context } from "@azure/functions"

const mongoose = require('mongoose');

mongoose.connect(
  process.env.CONNECTION_STRING,
  {
    useNewUrlParser: true,
    useUnifiedTopology: true,
  }
);

const entrySchema = new mongoose.Schema({
    portionSize: String,
    mealTypes: [String],
    ts: Date,
});

const userSchema = new mongoose.Schema({
    userId: { type: String, required: true, unique: true },
    identityProvider: { type: String, required: true },
    userDetails: { type: String, required: true },
    entries: [entrySchema],
});

const UserModel = mongoose.model('user', userSchema);

const httpTrigger: AzureFunction = async function (context: Context): Promise<void> {

    const { body } = context.req;
    const user = await UserModel.create(body);
    context.res = {
        header: {
        'Content-Type': 'application/json',
        },
    };
    context.res.status = 201;
    context.res.body = user;

};

export default httpTrigger;