Error: The JSON data contains an unexpected token 'm' in the "module.exp" which is causing a SyntaxError

$ npx json-server --version
1.0.0-alpha.23
$ node -v
v20.12.0
$ ls
generate.js  node_modules  package.json  package-lock.json  public  README.md  src

I've been attempting to launch a React project locally from a GitHub repository. Despite installing most dependencies, I'm facing difficulties executing a .js file using json-server.

The specific file I'm trying to load with json-server is located here: https://github.com/brucevanhorn2/reactstrap-course/blob/master/generate.js

This is the error message appearing in my VS Code terminal after running the command: npx json-server generate.js

undefined:1
module.exports = function(){
^

SyntaxError: Unexpected token 'm', "module.exp"... is not valid JSON
    at JSONFile.parse (<anonymous>)
    at JSONFile.read (file:///home/niveus/PRAKASH/VS_CODE/flying_cars/node_modules/lowdb/lib/adapters/node/DataFile.js:17:31)
    at async Observer.read (file:///home/niveus/PRAKASH/VS_CODE/flying_cars/node_modules/json-server/lib/observer.js:21:22)
    at async Low.read (file:///home/niveus/PRAKASH/VS_CODE/flying_cars/node_modules/lowdb/lib/core/Low.js:16:22)
    at async file:///home/niveus/PRAKASH/VS_CODE/flying_cars/node_modules/json-server/lib/bin.js:114:1

Node.js v20.12.0

I've attempted various export methods like export default () => {} in the generate.js file, yet no success.

Any ideas on what might be causing this issue?

javascriptjsonjson-server

Answer №1

If you're looking to load a JavaScript file for generating random data, keep in mind that the current alpha release of json-server@1 only supports JSON files. This means that trying to use non-JSON content will result in syntax errors. To work around this limitation, you can either generate the data with your JS file and then save it as JSON for use with json-server, or you can opt to install the stable version json-server@0 (currently v0.17.4).

For more information on related topics:

  • Issues encountered when running json-server --watch command
  • Getting "Not found" error in JSON server due to using integers for IDs

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