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Query and fetch Schema
const fetch = require('node-fetch');
const fs = require('fs');
fetch(`https://api.example.com/graphql`, {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({
variables: {},
query: `
{
__schema {
types {
kind
name
possibleTypes {
name
}
}
}
}
`,
}),
})
.then(result => result.json())
.then(result => {
// here we're filtering out any type information unrelated to unions or interfaces
const filteredData = result.data.__schema.types.filter(
type => type.possibleTypes !== null,
);
result.data.__schema.types = filteredData;
fs.writeFileSync('./src/fragmentTypes.json', JSON.stringify(result.data), err => {
if (err) {
console.error('Error writing fragmentTypes file', err);
} else {
console.log('Fragment types successfully extracted!');
}
});
});
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