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index.js
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index.js
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'use strict';
/**
* Serverless Swagger Import Plugin
* - This Serverless plugin imports AWS API Gateway Endpoint
* configuration (x-amazon-apigateway-integration extensions)
* from a Swagger file to s-function.json.
*/
module.exports = function(ServerlessPlugin, serverlessPath) {
const path = require('path'),
_ = require('lodash'),
SError = require(path.join(serverlessPath, 'Error')),
SCli = require(path.join(serverlessPath, 'utils/cli')),
BbPromise = require('bluebird');
/**
* ServerlessSwaggerImport
*/
class ServerlessSwaggerImport extends ServerlessPlugin {
constructor(S) {
super(S);
}
static getName() {
return 'com.serverless.' + ServerlessSwaggerImport.name;
}
registerActions() {
this.S.addAction(this.swaggerImport.bind(this), {
handler: 'swaggerImport',
description: 'Import endpoint configs from Swagger',
context: 'swagger',
contextAction: 'import',
options: [{
option: 'component',
shortcut: 'c',
description: 'Component name'
}],
parameters: [
{
parameter: 'swaggerFilePath',
description: 'Path to a swagger definition file',
position: '0'
}
]
});
return BbPromise.resolve();
}
swaggerImport(evt) {
const project = this.S.getProject()
if (!process.cwd().includes(project.getRootPath())) {
return BbPromise.reject(new SError("You need to run this command inside a Serverless project component"));
}
const componentName = evt.options.component || process.cwd().replace(project.getRootPath(), '').split(path.sep)[1];
if (_.isEmpty(componentName)) {
return BbPromise.reject(new SError("You need to run this command inside a Serverless project component"));
}
evt.data.componentName = componentName;
evt.data.endpointsUpdated = []
if (evt.options.swaggerFilePath) {
if (path.isAbsolute(evt.options.swaggerFilePath)) {
evt.data.swaggerFilePath = evt.options.swaggerFilePath;
} else {
evt.data.swaggerFilePath = path.resolve(process.cwd(), evt.options.swaggerFilePath);
}
} else {
evt.data.swaggerFilePath = path.resolve(this.S.getProject().getRootPath(), componentName, 'swagger.yaml');
}
this.evt = evt;
return this._parseSwagger()
.bind(this)
.then(this._updateEndpoints)
.then((updatedFunctions) => {
SCli.log(`----------------------------------------------------`);
SCli.log(`Updated ${evt.data.endpointsUpdated.length} endpoints in ${updatedFunctions.length} functions`);
evt
});
}
_parseSwagger() {
let SwaggerParser = require('swagger-parser'),
importSwaggerAws = {},
opts = {
validate: {
schema: false
}
};
return BbPromise.resolve()
.then(() => SwaggerParser.dereference(this.evt.data.swaggerFilePath, opts))
.then(data => {
_.each(data.paths, (apiPath, path) => {
path = path.slice(1);
_.each(apiPath, (operation, method) => {
if (!operation['x-amazon-apigateway-integration']) return;
method = method.toUpperCase()
let apigPath = path + '~' + method;
importSwaggerAws[apigPath] = {
path,
method,
apigPath,
operation,
integration: operation['x-amazon-apigateway-integration']
};
})
});
return importSwaggerAws;
});
}
_updateEndpoints(swaggerData) {
let project = this.S.getProject(),
updateFunctions = [],
endpoints = project.getAllEndpoints({paths: [this.evt.data.componentName]}),
updated = [];
_.each(swaggerData, (swEp) => {
let endpoint = _.find(endpoints, {path: swEp.path, method: swEp.method})
if (endpoint) {
SCli.log(`Updating "${endpoint.getSPath()}"`);
endpoint.set(swEp.integration);
updateFunctions.push(endpoint.getFunction());
this.evt.data.endpointsUpdated.push(endpoint.getSPath());
} else {
SCli.log(`Warning: Can't find an endpoint for "${swEp.apigPath}"`);
}
});
return BbPromise.map(_.uniq(updateFunctions), func => func.save())
}
}
return ServerlessSwaggerImport;
};