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- import { inspect } from '../jsutils/inspect.mjs';
- import { keyMap } from '../jsutils/keyMap.mjs';
- import { printPathArray } from '../jsutils/printPathArray.mjs';
- import { GraphQLError } from '../error/GraphQLError.mjs';
- import { Kind } from '../language/kinds.mjs';
- import { print } from '../language/printer.mjs';
- import { isInputType, isNonNullType } from '../type/definition.mjs';
- import { coerceInputValue } from '../utilities/coerceInputValue.mjs';
- import { typeFromAST } from '../utilities/typeFromAST.mjs';
- import { valueFromAST } from '../utilities/valueFromAST.mjs';
- /**
- * Prepares an object map of variableValues of the correct type based on the
- * provided variable definitions and arbitrary input. If the input cannot be
- * parsed to match the variable definitions, a GraphQLError will be thrown.
- *
- * Note: The returned value is a plain Object with a prototype, since it is
- * exposed to user code. Care should be taken to not pull values from the
- * Object prototype.
- */
- export function getVariableValues(schema, varDefNodes, inputs, options) {
- const errors = [];
- const maxErrors =
- options === null || options === void 0 ? void 0 : options.maxErrors;
- try {
- const coerced = coerceVariableValues(
- schema,
- varDefNodes,
- inputs,
- (error) => {
- if (maxErrors != null && errors.length >= maxErrors) {
- throw new GraphQLError(
- 'Too many errors processing variables, error limit reached. Execution aborted.',
- );
- }
- errors.push(error);
- },
- );
- if (errors.length === 0) {
- return {
- coerced,
- };
- }
- } catch (error) {
- errors.push(error);
- }
- return {
- errors,
- };
- }
- function coerceVariableValues(schema, varDefNodes, inputs, onError) {
- const coercedValues = {};
- for (const varDefNode of varDefNodes) {
- const varName = varDefNode.variable.name.value;
- const varType = typeFromAST(schema, varDefNode.type);
- if (!isInputType(varType)) {
- // Must use input types for variables. This should be caught during
- // validation, however is checked again here for safety.
- const varTypeStr = print(varDefNode.type);
- onError(
- new GraphQLError(
- `Variable "$${varName}" expected value of type "${varTypeStr}" which cannot be used as an input type.`,
- {
- nodes: varDefNode.type,
- },
- ),
- );
- continue;
- }
- if (!hasOwnProperty(inputs, varName)) {
- if (varDefNode.defaultValue) {
- coercedValues[varName] = valueFromAST(varDefNode.defaultValue, varType);
- } else if (isNonNullType(varType)) {
- const varTypeStr = inspect(varType);
- onError(
- new GraphQLError(
- `Variable "$${varName}" of required type "${varTypeStr}" was not provided.`,
- {
- nodes: varDefNode,
- },
- ),
- );
- }
- continue;
- }
- const value = inputs[varName];
- if (value === null && isNonNullType(varType)) {
- const varTypeStr = inspect(varType);
- onError(
- new GraphQLError(
- `Variable "$${varName}" of non-null type "${varTypeStr}" must not be null.`,
- {
- nodes: varDefNode,
- },
- ),
- );
- continue;
- }
- coercedValues[varName] = coerceInputValue(
- value,
- varType,
- (path, invalidValue, error) => {
- let prefix =
- `Variable "$${varName}" got invalid value ` + inspect(invalidValue);
- if (path.length > 0) {
- prefix += ` at "${varName}${printPathArray(path)}"`;
- }
- onError(
- new GraphQLError(prefix + '; ' + error.message, {
- nodes: varDefNode,
- originalError: error,
- }),
- );
- },
- );
- }
- return coercedValues;
- }
- /**
- * Prepares an object map of argument values given a list of argument
- * definitions and list of argument AST nodes.
- *
- * Note: The returned value is a plain Object with a prototype, since it is
- * exposed to user code. Care should be taken to not pull values from the
- * Object prototype.
- */
- export function getArgumentValues(def, node, variableValues) {
- var _node$arguments;
- const coercedValues = {}; // FIXME: https://github.com/graphql/graphql-js/issues/2203
- /* c8 ignore next */
- const argumentNodes =
- (_node$arguments = node.arguments) !== null && _node$arguments !== void 0
- ? _node$arguments
- : [];
- const argNodeMap = keyMap(argumentNodes, (arg) => arg.name.value);
- for (const argDef of def.args) {
- const name = argDef.name;
- const argType = argDef.type;
- const argumentNode = argNodeMap[name];
- if (!argumentNode) {
- if (argDef.defaultValue !== undefined) {
- coercedValues[name] = argDef.defaultValue;
- } else if (isNonNullType(argType)) {
- throw new GraphQLError(
- `Argument "${name}" of required type "${inspect(argType)}" ` +
- 'was not provided.',
- {
- nodes: node,
- },
- );
- }
- continue;
- }
- const valueNode = argumentNode.value;
- let isNull = valueNode.kind === Kind.NULL;
- if (valueNode.kind === Kind.VARIABLE) {
- const variableName = valueNode.name.value;
- if (
- variableValues == null ||
- !hasOwnProperty(variableValues, variableName)
- ) {
- if (argDef.defaultValue !== undefined) {
- coercedValues[name] = argDef.defaultValue;
- } else if (isNonNullType(argType)) {
- throw new GraphQLError(
- `Argument "${name}" of required type "${inspect(argType)}" ` +
- `was provided the variable "$${variableName}" which was not provided a runtime value.`,
- {
- nodes: valueNode,
- },
- );
- }
- continue;
- }
- isNull = variableValues[variableName] == null;
- }
- if (isNull && isNonNullType(argType)) {
- throw new GraphQLError(
- `Argument "${name}" of non-null type "${inspect(argType)}" ` +
- 'must not be null.',
- {
- nodes: valueNode,
- },
- );
- }
- const coercedValue = valueFromAST(valueNode, argType, variableValues);
- if (coercedValue === undefined) {
- // Note: ValuesOfCorrectTypeRule validation should catch this before
- // execution. This is a runtime check to ensure execution does not
- // continue with an invalid argument value.
- throw new GraphQLError(
- `Argument "${name}" has invalid value ${print(valueNode)}.`,
- {
- nodes: valueNode,
- },
- );
- }
- coercedValues[name] = coercedValue;
- }
- return coercedValues;
- }
- /**
- * Prepares an object map of argument values given a directive definition
- * and a AST node which may contain directives. Optionally also accepts a map
- * of variable values.
- *
- * If the directive does not exist on the node, returns undefined.
- *
- * Note: The returned value is a plain Object with a prototype, since it is
- * exposed to user code. Care should be taken to not pull values from the
- * Object prototype.
- */
- export function getDirectiveValues(directiveDef, node, variableValues) {
- var _node$directives;
- const directiveNode =
- (_node$directives = node.directives) === null || _node$directives === void 0
- ? void 0
- : _node$directives.find(
- (directive) => directive.name.value === directiveDef.name,
- );
- if (directiveNode) {
- return getArgumentValues(directiveDef, directiveNode, variableValues);
- }
- }
- function hasOwnProperty(obj, prop) {
- return Object.prototype.hasOwnProperty.call(obj, prop);
- }
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