how to migrate express graphql to graphql-http with request

[blee-deloitte]

Hi, i tried to look for how to migrate express-graphql to graphql-http with req function but i couldn't find anything in github or online.
here is the example:

graphqlhttp version
app.use('/graphql', graphqlHTTP(req => {context: req.headers,})

i tried to do the same method for createHandler but its not reading the function.
app.use('/graphql', createHandler(req => {context: req.headers})

Also, does anyone knows if graphql-http can use const NoIntrospection = require('graphql-disable-introspection'); for validationRules in express-graphql?

Thank you in advance

[enisdenjo]

The createHandler for express does not accept a function as an argument. You can find the information about it in the documentation.

- app.use('/graphql', createHandler(req => {context: req.headers})
+ app.use('/graphql', createHandler({context: req => req.headers})

Furthermore, the handler accepts a validationRules option where you can pass additional validation rules.

const NoIntrospection = require('graphql-disable-introspection');

app.use('/graphql', createHandler({validationRules: [NoIntrospection]})