109 lines
2.8 KiB
JavaScript
Executable File
109 lines
2.8 KiB
JavaScript
Executable File
'use strict';
|
|
const EventEmitter = require('events');
|
|
const getStream = require('get-stream');
|
|
const is = require('@sindresorhus/is');
|
|
const PCancelable = require('p-cancelable');
|
|
const requestAsEventEmitter = require('./request-as-event-emitter');
|
|
const {HTTPError, ParseError, ReadError} = require('./errors');
|
|
const {options: mergeOptions} = require('./merge');
|
|
const {reNormalize} = require('./normalize-arguments');
|
|
|
|
const asPromise = options => {
|
|
const proxy = new EventEmitter();
|
|
|
|
const promise = new PCancelable((resolve, reject, onCancel) => {
|
|
const emitter = requestAsEventEmitter(options);
|
|
|
|
onCancel(emitter.abort);
|
|
|
|
emitter.on('response', async response => {
|
|
proxy.emit('response', response);
|
|
|
|
const stream = is.null(options.encoding) ? getStream.buffer(response) : getStream(response, options);
|
|
|
|
let data;
|
|
try {
|
|
data = await stream;
|
|
} catch (error) {
|
|
reject(new ReadError(error, options));
|
|
return;
|
|
}
|
|
|
|
const limitStatusCode = options.followRedirect ? 299 : 399;
|
|
|
|
response.body = data;
|
|
|
|
try {
|
|
for (const [index, hook] of Object.entries(options.hooks.afterResponse)) {
|
|
// eslint-disable-next-line no-await-in-loop
|
|
response = await hook(response, updatedOptions => {
|
|
updatedOptions = reNormalize(mergeOptions(options, {
|
|
...updatedOptions,
|
|
retry: 0,
|
|
throwHttpErrors: false
|
|
}));
|
|
|
|
// Remove any further hooks for that request, because we we'll call them anyway.
|
|
// The loop continues. We don't want duplicates (asPromise recursion).
|
|
updatedOptions.hooks.afterResponse = options.hooks.afterResponse.slice(0, index);
|
|
|
|
return asPromise(updatedOptions);
|
|
});
|
|
}
|
|
} catch (error) {
|
|
reject(error);
|
|
return;
|
|
}
|
|
|
|
const {statusCode} = response;
|
|
|
|
if (options.json && response.body) {
|
|
try {
|
|
response.body = JSON.parse(response.body);
|
|
} catch (error) {
|
|
if (statusCode >= 200 && statusCode < 300) {
|
|
const parseError = new ParseError(error, statusCode, options, data);
|
|
Object.defineProperty(parseError, 'response', {value: response});
|
|
reject(parseError);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (statusCode !== 304 && (statusCode < 200 || statusCode > limitStatusCode)) {
|
|
const error = new HTTPError(response, options);
|
|
Object.defineProperty(error, 'response', {value: response});
|
|
if (emitter.retry(error) === false) {
|
|
if (options.throwHttpErrors) {
|
|
reject(error);
|
|
return;
|
|
}
|
|
|
|
resolve(response);
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
resolve(response);
|
|
});
|
|
|
|
emitter.once('error', reject);
|
|
[
|
|
'request',
|
|
'redirect',
|
|
'uploadProgress',
|
|
'downloadProgress'
|
|
].forEach(event => emitter.on(event, (...args) => proxy.emit(event, ...args)));
|
|
});
|
|
|
|
promise.on = (name, fn) => {
|
|
proxy.on(name, fn);
|
|
return promise;
|
|
};
|
|
|
|
return promise;
|
|
};
|
|
|
|
module.exports = asPromise;
|