Question 1

How to install ArcGIS REST JS in a Node.js backend?

Accepted Answer

Install via npm with commands like 'npm install @esri/arcgis-rest-request', then import the necessary modules. For production, use the CommonJS or ESM builds based on your Node.js version.

Question 2

ArcGIS REST JS vs ArcGIS API for JavaScript – which one should I use?

Accepted Answer

Use ArcGIS REST JS for lightweight data operations via REST API, ideal for non-visual tasks. Choose ArcGIS API for JavaScript if you need interactive map UI components and advanced visualization features.

Question 3

How to make a geocoding request with ArcGIS REST JS?

Accepted Answer

Import the geocoding package and use functions like 'geocode' with parameters for addresses or locations. It handles authentication and HTTP requests internally, returning structured results.

Question 4

Can I use ArcGIS REST JS with React or Vue.js?

Accepted Answer

Yes, it's framework-agnostic and works well with modern frontend frameworks. For example, in React, you can call its functions in useEffect hooks to fetch geospatial data.

Question 5

What authentication methods does ArcGIS REST JS support?

Accepted Answer

It supports ArcGIS Online API keys, OAuth 2.0 tokens, and user credentials, integrating with the core request module for secure service access.

Question 6

How to handle errors or failed requests in ArcGIS REST JS?

Accepted Answer

Use promise chaining with .catch() or async/await, as functions return promises. Errors typically mirror ArcGIS REST API responses, so check status codes and error messages.

ArcGIS REST JS demos

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