Mirage setup

server.js

import { Server, Model, Response } from "miragejs"
import {
  consortiaFixtures,
  statusFixtures,
  typeFixtures,
  enrollmentFixtures
} from "./fixtures"
var jwt = require("jsonwebtoken")

export function makeServer({ environment = "development" } = {}) {
  let server = new Server({
    environment,

    seeds(server) {
      server.db.loadData({
        users: [
          {
            id: 1,
            email: "someone@example.com",
            name: "Some One",
            creator_id: 1,
            role: 1,
            needs_new_password: 0
          }
        ]
      })
    },

    routes() {
      this.namespace = ""
      this.urlPrefix = process.env.REACT_APP_API_ENDPOINT

      this.post("/users/auth", schema => {
        // creates basic token for testing
        const token = jwt.sign({}, "shhhhh")
        return new Response(
          200,
          {},
          {
            token,
            user: schema.db.users[0]
          }
        )
      })

      this.get("/users/:id", schema => {
        return new Response(
          200,
          {},
          {
            message: "users get success",
            data: schema.db.users[0]
          }
        )
      })

      this.put("/users/:id", (schema, request) => {
        const user = schema.db.users.findBy({ id: 1 })
        const data = JSON.parse(request.requestBody)
        schema.db.users[0] = {
          ...schema.db.users[0],
          ...data
        }
        return new Response(
          200,
          {},
          {
            message: "users update success",
            data: {
              ...schema.db.users[0],
              ...data
            }
          }
        )
      })

      this.get("/memberships/consortia", () => {
        return new Response(200, {}, consortiaFixtures)
      })

      this.get("/memberships/status", () => {
        return new Response(200, {}, statusFixtures)
      })

      this.get("/memberships/type", () => {
        return new Response(200, {}, typeFixtures)
      })

      this.get("/memberships/enrollment", () => {
        return new Response(200, {}, enrollmentFixtures)
      })

      this.passthrough(request => {
        console.log(request)
        console.log(request.url.match(/pndsn/))
        return request.url.match(/pndsn/)
      })
    }
  })

  return server
}

Perfect, thanks :)