graphql-relay
Version:
A library to help construct a graphql-js server supporting react-relay.
85 lines (81 loc) • 2.8 kB
JavaScript
;
Object.defineProperty(exports, '__esModule', {
value: true,
});
exports.mutationWithClientMutationId = mutationWithClientMutationId;
var _graphql = require('graphql');
/**
* A description of a mutation consumable by mutationWithClientMutationId
* to create a GraphQLFieldConfig for that mutation.
*
* The inputFields and outputFields should not include `clientMutationId`,
* as this will be provided automatically.
*
* An input object will be created containing the input fields, and an
* object will be created containing the output fields.
*
* mutateAndGetPayload will receive an Object with a key for each
* input field, and it should return an Object with a key for each
* output field. It may return synchronously, or return a Promise.
*/
/**
* Returns a GraphQLFieldConfig for the mutation described by the
* provided MutationConfig.
*/
function mutationWithClientMutationId(config) {
const { name, inputFields, outputFields, mutateAndGetPayload } = config;
const augmentedInputFields = () => ({
...(0, _graphql.resolveObjMapThunk)(inputFields),
clientMutationId: {
type: _graphql.GraphQLString,
},
});
const augmentedOutputFields = () => ({
...(0, _graphql.resolveObjMapThunk)(outputFields),
clientMutationId: {
type: _graphql.GraphQLString,
},
});
const outputType = new _graphql.GraphQLObjectType({
name: name + 'Payload',
fields: augmentedOutputFields,
});
const inputType = new _graphql.GraphQLInputObjectType({
name: name + 'Input',
fields: augmentedInputFields,
});
return {
type: outputType,
description: config.description,
deprecationReason: config.deprecationReason,
extensions: config.extensions,
args: {
input: {
type: new _graphql.GraphQLNonNull(inputType),
},
},
resolve: (_, { input }, context, info) => {
const { clientMutationId } = input;
const payload = mutateAndGetPayload(input, context, info);
if (isPromiseLike(payload)) {
return payload.then(injectClientMutationId);
}
return injectClientMutationId(payload);
function injectClientMutationId(data) {
if (typeof data === 'object' && data !== null) {
// @ts-expect-error FIXME It's bad idea to mutate data but we need to pass clientMutationId somehow. Maybe in future we figure out better solution satisfying all our test cases.
data.clientMutationId = clientMutationId;
}
return data;
}
},
};
}
// FIXME: Temporary until graphql-js resolves this issue
// See, https://github.com/graphql/graphql-js/pull/3243#issuecomment-919510590
function isPromiseLike(value) {
return (
typeof (value === null || value === void 0 ? void 0 : value.then) ===
'function'
);
}