Level 3: Space engineer

Intermediate

Tutorial

• 3.1 Motoko package managers: To use packages developed outside of the Motoko base library, a Motoko package manager can be used. This module covers:

  • What is a package manager?
  • Installing Mops.
  • Installing Vessel.
  • Using Mops.
    • Creating a new project.
    • Configuring your project to use Mops.
    • Initializing Mops.
    • Adding packages to mops.toml.
  • Publishing a package.
  • Using Vessel.
  • Importing packages into your Motoko code.

• 3.2 Using HTTPS outcalls: HTTPS outcalls are a feature of canisters on ICP that allow smart contracts to directly make calls to HTTPS servers that are external to ICP. This module covers:

  • Supported HTTPS methods.
  • Cycles.
  • HTTPS outcalls API.
  • HTTPS GET.
    • Prerequisites.
    • Creating a new project.
    • Creating an HTTP GET request.
    • Calling the HTTP GET request.
  • HTTPS POST.
    • Prerequisites.
    • Creating a new project.
    • Creating an HTTP POST request.
    • Calling the HTTP POST request.

• 3.3 Certified data: Certified data utilizes chain-key cryptography at the canister level to generate a digital signature that can be validated using a permanent, public key that belongs to the Internet Computer, whose private key counterpart is constantly distributed across many different nodes on the network. This module covers:

  • How data is certified.
    • Data certificates.
    • How canisters certify data.
    • Certified data API methods.
  • How Developers can certify data.
    • Certified data Motoko module.
    • Certified data Rusk CDK module.
  • Generating an HTTPS response.
    • Example.
  • Using certified variables.
    • Prerequisites.
    • Creating a new project.
    • Creating an HTTP request.
    • Interacting with certified variables.
  • Resources.

• 3.4 Introduction to agents: On the Internet Computer, an agent is a library used to make calls to ICP's public interface. This module covers:

  • What does an agent do?
    • Structuring data.
    • Decoding data.
    • Managing authentication.
      • Accepted identities.
  • Available agents.
  • Using the JavaScript agent.
    • Prerequisites.
    • Creating a new project.
    • Generating Candid declarations.
    • Creating the JavaScript agent.
    • Using the agent.

• 3.5 Identities and authentication: When developing on the Internet Identity, there are several types of identities and methods of authentication that you'll encounter. This module covers:

  • Types of identity.
  • Internet Identity.
    • Internet Identity architecture.
    • What is a passkey?
  • Creating an Internet Identity.
  • Integrating an Internet Identity into your app.
    • Prerequisites.
    • Creating a new project.
    • Creating an actor.
    • Importing the auth-client package.
    • Pulling the Internet Identity canister.
    • Interacting with the integration.

• 3.6 Motoko level 3: In this Motoko level, you'll look into caller identification, adding access control with identities, plus other non-identity related functionalities such as pattern matching and periodic tasks. This module covers:

  • Principals and caller identification.
  • Adding access control with identities.
    • Prerequisites.
    • Creating a new project.
    • Creating an owner identity.
    • Writing backend code with access control.
    • Interacting with the dapp.
  • Pattern matching.
  • Periodic timers.