I am learning GraphQL for my project using this tutorial: https://www.youtube.com/watch?v=ZQL7tL2S0oQ&ab_channel=WebDevSimplified
and I get the error:
TypeError: expressGraphQL is not a function at Object.<anonymous>
I have already tried:
- this solution: graphqlHTTP is not a function – the program crashes all the same with {} parentheses and without them
- adding a semicolon after various lines
The code for now looks like this:
const express = require ('express') const { expressGraphQL } = require('express-graphql') const app = express(); app.use('/graphql', expressGraphQL({ graphiql: true, }) ) app.listen(5000., () => console.log('Server Running'))
If I comment out this section:
app.use('/graphql', expressGraphQL({ graphiql: true, }) )
the code works perfectly fine both with {} parentheses and without them.
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Answer
Please replace your expressGraphQL with graphqlHTTP as it was destructured
Use:
const { graphqlHTTP } = require('express-graphql');
or
const expressGraphQL = require('express-graphql').graphqlHTTP
This is because a method called graphqlHTTP exist in the express-graphql module and you are destructure with another method name that does not exist in the module
I also noticed that you have a dot after 5000 on the app.listen function.