-
-
Save chr33s/f51c717d9bd41f1d66d5e5cc7658b8eb to your computer and use it in GitHub Desktop.
Calculate Shopify Function Query Cost
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| const { parse } = require('graphql/language'); | |
| /** | |
| * Calculates the cost of a GraphQL query based on its structure. | |
| * | |
| * @param {string} query - The GraphQL query to calculate the cost for. | |
| * @param {boolean} [debug=false] - If true, additional debug information will be logged. | |
| * @return {number} The total cost of the query. | |
| */ | |
| function calculateQueryCost(query, debug = true) { | |
| let cost = 0; | |
| function traverse(node) { | |
| switch (node.kind) { | |
| case 'Document': | |
| node.definitions.forEach(definition => traverse(definition)); | |
| break; | |
| case 'OperationDefinition': | |
| if (node.selectionSet) { | |
| traverse(node.selectionSet); | |
| } | |
| break; | |
| case 'SelectionSet': | |
| if (node.selections) { | |
| node.selections.forEach(selection => traverse(selection)); | |
| } | |
| break; | |
| case 'Field': | |
| const fieldName = node.name.value; | |
| debug && console.log(`Field name: ${fieldName}`); // Debug output | |
| if (fieldName === 'metafield') { | |
| cost += 3; // Add cost for metafield | |
| debug && console.log(`Added cost 3 for ${fieldName}, total cost: ${cost}`); | |
| return; | |
| } else if (['hasTags', 'hasAnyTag', 'inAnyCollection', 'inCollections'].includes(fieldName)) { | |
| cost += 3; // Add cost for special fields | |
| debug && console.log(`Added cost 3 for ${fieldName}, total cost: ${cost}`); | |
| return; | |
| } else if (!node.selectionSet) { | |
| cost += 1; // Default cost for other leaf nodes | |
| debug && console.log(`Added cost 1 for ${fieldName}, total cost: ${cost}`); | |
| } | |
| if (node.selectionSet) { | |
| traverse(node.selectionSet); | |
| } | |
| break; | |
| case 'InlineFragment': | |
| case 'FragmentSpread': | |
| if (node.selectionSet) { | |
| traverse(node.selectionSet); | |
| } | |
| break; | |
| // Add cases for other node kinds like 'FragmentDefinition' if needed | |
| } | |
| } | |
| const ast = parse(query); | |
| traverse(ast); | |
| return cost; | |
| } | |
| const query = ` | |
| query Input { | |
| cart { | |
| cost { | |
| totalAmount { | |
| amount | |
| } | |
| } | |
| } | |
| paymentMethods { | |
| id | |
| name | |
| } | |
| paymentCustomization { | |
| metafield(namespace: "$app:payment-customization", key: "function-configuration") { | |
| value | |
| } | |
| } | |
| } | |
| `; | |
| console.log(calculateQueryCost(query)); |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment