When attempting to use the exposed server function ExposedServerFunctions.fetchData() with an HTTP POST method, an error is thrown at line 18 of the deserialize.js file, which can be found in the nullstack/shared folder. The error message reads: "SyntaxError: Unexpected token o in JSON at position 1". This occurs when the function attempts to parse JSON data from the request.body, but encounters an unexpected token.
This issue can be reproduced by running this sample project and sending a POST request to the http://localhost:3000/test-post endpoint. A footage video of the issue can be found at this Loom link.
Sample code server.js
import Nullstack from 'nullstack'
import express from 'express'
import Application from './src/Application'
import ExposedServerFunctions from './src/ExposedServerFunctions'
const context = Nullstack.start(Application)
context.server.use(express.json())
context.server.post('/test-post', ExposedServerFunctions.fetchData)
context.start = async function start() {
// https://nullstack.app/application-startup
}
export default contextSample code ExposedServerFunctions.jsx
import Nullstack from 'nullstack'
class ExposedServerFunctions extends Nullstack {
static async fetchData({ request }) {
console.log(`👀 Yeah! Im here! url: ${request.url}`)
console.log('request.body', request.body)
return {
status: "🐴 xurupita's farm 🐴",
body: request.body,
}
}
}
export default ExposedServerFunctionsExpection thrown
SyntaxError: Unexpected token o in JSON at position 1
at JSON.parse (<anonymous>)
at null.deserialize (webpack://nullstack-testy/node_modules/nullstack/shared/deserialize.js:18:1)
at null.<anonymous> (webpack://nullstack-testy/node_modules/nullstack/server/server.js:52:1)
at Layer.handle (webpack://nullstack-testy/node_modules/express/lib/router/layer.js:95:1)
at null.next (webpack://nullstack-testy/node_modules/express/lib/router/route.js:144:1)
at null.textParser (webpack://nullstack-testy/node_modules/body-parser/lib/types/text.js:60:1)
at Layer.handle (webpack://nullstack-testy/node_modules/express/lib/router/layer.js:95:1)
at null.next (webpack://nullstack-testy/node_modules/express/lib/router/route.js:144:1)
at Route.dispatch (webpack://nullstack-testy/node_modules/express/lib/router/route.js:114:1)
at Layer.handle (webpack://nullstack-testy/node_modules/express/lib/router/layer.js:95:1)
Issue caught on video
Sample repo
When attempting to use the exposed server function
ExposedServerFunctions.fetchData()with an HTTP POST method, an error is thrown at line 18 of the deserialize.js file, which can be found in thenullstack/sharedfolder. The error message reads: "SyntaxError: Unexpected token o in JSON at position 1". This occurs when the function attempts to parse JSON data from therequest.body, but encounters an unexpected token.This issue can be reproduced by running this sample project and sending a POST request to the
http://localhost:3000/test-postendpoint. A footage video of the issue can be found at this Loom link.Sample code
server.jsSample code
ExposedServerFunctions.jsxExpection thrown
Issue caught on video
Sample repo