38 lines
1.3 KiB
JavaScript
38 lines
1.3 KiB
JavaScript
const {sendActionToService} = require('@truss/comm');
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const debug = require('debug')('truss:gateway:actions');
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module.exports = (serviceMap) => ({
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'truss/hook-services': ({payload: {hook, args}}) => {
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if (!(hook in serviceMap.hooks)) { return []; }
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return serviceMap.hooks[hook];
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},
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'truss/invoke': ({payload: {hook, args}}) => {
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if (!(hook in serviceMap.hooks)) { return {}; }
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return invokeHook(serviceMap.hooks[hook], hook, args);
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},
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'truss/invoke-flat': ({payload: {hook, args}}) => {
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if (!(hook in serviceMap.hooks)) { return []; }
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return invokeHookFlat(serviceMap.hooks[hook], hook, args);
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},
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});
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function invokeHookFlat(services, hook, args) {
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debug(`invoking hookFlat(${hook}(${JSON.stringify(args, null, ' ')}))...`);
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return invokeHookFlatInternal(services, hook, args);
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}
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function invokeHookFlatInternal(services, hook, args) {
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const action = {type: 'truss/hook', payload: {hook, args}};
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return Promise.all(services.map((service) => {
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return sendActionToService(action, service);
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}));
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}
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function invokeHook(services, hook, args) {
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debug(`invoking hook ${hook}(${JSON.stringify(args, null, ' ')})...`);
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return invokeHookFlatInternal(services, hook, args).then((result) => {
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return result.reduce((l, r, i) => (l[services[i]] = r, l), {});
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});
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}
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