56 lines
1.5 KiB
JavaScript
56 lines
1.5 KiB
JavaScript
var axios = require("axios");
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var empty = require("is-empty");
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const Constants = require("./constants.js");
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function BinaryHTTPEmitter(config, headerByGetter, extensionPrefix){
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this.config = JSON.parse(JSON.stringify(config));
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this.headerByGetter = headerByGetter;
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this.extensionPrefix = extensionPrefix;
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this.config[Constants.HEADERS] =
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(!this.config[Constants.HEADERS]
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? {}
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: this.config[Constants.HEADERS]);
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// default is json
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if(!this.config[Constants.HEADERS][Constants.HEADER_CONTENT_TYPE]){
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this.config[Constants.HEADERS][Constants.HEADER_CONTENT_TYPE] =
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Constants.DEFAULT_CONTENT_TYPE;
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}
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}
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BinaryHTTPEmitter.prototype.emit = function(cloudevent) {
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// Create new request object
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var _config = JSON.parse(JSON.stringify(this.config));
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// Always set stuff in _config
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var _headers = _config[Constants.HEADERS];
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Object.keys(this.headerByGetter)
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.filter((getter) => cloudevent[getter]())
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.forEach((getter) => {
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let header = this.headerByGetter[getter];
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_headers[header.name] =
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header.parser(
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cloudevent[getter]()
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);
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});
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// Set the cloudevent payload
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_config[Constants.DATA_ATTRIBUTE] = cloudevent.format().data;
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// Have extensions?
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var exts = cloudevent.getExtensions();
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Object.keys(exts)
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.filter((ext) => Object.hasOwnProperty.call(exts, ext))
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.forEach((ext) => {
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_headers[this.extensionPrefix + ext] = exts[ext];
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});
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// Return the Promise
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return axios.request(_config);
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};
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module.exports = BinaryHTTPEmitter;
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