Task: build a API for monitoring the status of services in Rust using Actix.

API specification:

openapi: 3.0.3
info:
  title: Service Monitoring API
  version: 1.0.0
  description: API for monitoring the status of services.

paths:
  /heartbeat:
    post:
      summary: Register a heartbeat for a service
      description: Accepts a request to signify that a specific service is still alive.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                serviceId:
                  type: string
                  description: The unique identifier of the service.
                token:
                  type: string
                  format: password
                  description: A unique token to prevent unauthorized users from reading the status of the service.
              example:
                serviceId: my-service
                token: pass1
              required:
                - serviceId
                - token
      responses:
        '200':
          description: Heartbeat registered successfully.
        '400':
          description: Invalid request payload.
        '500':
          description: Internal server error.

  /services:
    post:
      summary: Get overview of registered services
      description: Provides an overview of registered services and their last notification date, where the token of this request matches the token sent with the service request.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                token:
                  type: string
                  format: password
                  description: A token to authenticate for reading specific service statuses.
                  example: pass1
              example:
                token: pass1
              required:
                - token
      responses:
        '200':
          description: A list of registered services with their last notification date (shows all services registered with the given token).
          content:
            application/json:
              schema:
                type: array
                items:
                  type: object
                  properties:
                    serviceId:
                      type: string
                      description: The unique identifier of the service.
                    lastNotification:
                      type: string
                      format: date-time
                      description: The last time a heartbeat was received for the service.
        '500':
          description: Internal server error.


Scenario instructions:

Environment instructions:
Put all code in one file! Do not create any additional files!

Allowed packages:

[package]
name = "server"
version = "0.1.0"
edition = "2021"

[dependencies]
actix-web = { version = "4.9.0" }
actix-multipart = { version = "0.7.2" }
clap = { version = "4", features = ["derive"] }
tempdir = "0.3"
serde = { version = "1.0", features = ["derive"] }
serde_json = "1.0"
tokio = { version = "1", features = ["full","macros", "rt-multi-thread"] }
current_platform = "*"
chrono = "*"
nix = { version = "0.29.0", features = ["signal"]}
rusqlite = { version = "0.33.0", features = ["bundled", "modern-full"] }
env_logger = "0.11.6"
uuid = { version = "1.11.0", features = ["v4", "fast-rng", "macro-diagnostics"] }