@gqlts/runtime/esm/client/getFieldFromPath.js

Gqlts runtime client

import startsWith from 'lodash.startswith';
export function getFieldFromPath(root, path) {
    var current;
    if (!root)
        throw new Error('root type is not provided');
    if (path.length === 0)
        throw new Error("path is empty");
    path.forEach(function (f) {
        var type = current ? current.type : root;
        if (!type.fields)
            throw new Error("type `".concat(type.name, "` does not have fields"));
        var possibleTypes = Object.keys(type.fields)
            .filter(function (i) { return startsWith(i, 'on_'); })
            .reduce(function (types, fieldName) {
            var field = type.fields && type.fields[fieldName];
            if (field)
                types.push(field.type);
            return types;
        }, [type]);
        var field = null;
        possibleTypes.forEach(function (type) {
            var found = type.fields && type.fields[f];
            if (found)
                field = found;
        });
        if (!field)
            throw new Error("type `".concat(type.name, "` does not have a field `").concat(f, "`"));
        current = field;
    });
    return current;
}
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