@graphql-tools/batch-execute
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A set of utils for faster development of GraphQL tools
50 lines (49 loc) • 1.91 kB
JavaScript
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// adapted from https://github.com/gatsbyjs/gatsby/blob/master/packages/gatsby-source-graphql/src/batching/merge-queries.js
Object.defineProperty(exports, "__esModule", { value: true });
exports.splitResult = void 0;
const utils_1 = require("@graphql-tools/utils");
const prefix_js_1 = require("./prefix.js");
/**
* Split and transform result of the query produced by the `merge` function
*/
function splitResult({ data, errors }, numResults) {
const splitResults = [];
for (let i = 0; i < numResults; i++) {
splitResults.push({});
}
if (data) {
for (const prefixedKey in data) {
const { index, originalKey } = (0, prefix_js_1.parseKey)(prefixedKey);
const result = splitResults[index];
if (result == null) {
continue;
}
if (result.data == null) {
result.data = { [originalKey]: data[prefixedKey] };
}
else {
result.data[originalKey] = data[prefixedKey];
}
}
}
if (errors) {
for (const error of errors) {
if (error.path) {
const parsedKey = (0, prefix_js_1.parseKey)(error.path[0]);
const { index, originalKey } = parsedKey;
const newError = (0, utils_1.relocatedError)(error, [originalKey, ...error.path.slice(1)]);
const resultErrors = (splitResults[index].errors = (splitResults[index].errors || []));
resultErrors.push(newError);
}
else {
splitResults.forEach(result => {
const resultErrors = (result.errors = (result.errors || []));
resultErrors.push((0, utils_1.createGraphQLError)(error.message));
});
}
}
}
return splitResults;
}
exports.splitResult = splitResult;