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'use strict';
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const errors = require('./errors');
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const asStream = require('./as-stream');
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const asPromise = require('./as-promise');
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const normalizeArguments = require('./normalize-arguments');
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const merge = require('./merge');
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const deepFreeze = require('./utils/deep-freeze');
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const getPromiseOrStream = options => options.stream ? asStream(options) : asPromise(options);
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const aliases = [
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'get',
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'post',
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'put',
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'patch',
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'head',
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'delete'
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];
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const create = defaults => {
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defaults = merge({}, defaults);
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normalizeArguments.preNormalize(defaults.options);
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if (!defaults.handler) {
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// This can't be getPromiseOrStream, because when merging
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// the chain would stop at this point and no further handlers would be called.
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defaults.handler = (options, next) => next(options);
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}
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function got(url, options) {
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try {
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return defaults.handler(normalizeArguments(url, options, defaults), getPromiseOrStream);
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} catch (error) {
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if (options && options.stream) {
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throw error;
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} else {
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return Promise.reject(error);
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}
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}
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}
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got.create = create;
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got.extend = options => {
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let mutableDefaults;
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if (options && Reflect.has(options, 'mutableDefaults')) {
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mutableDefaults = options.mutableDefaults;
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delete options.mutableDefaults;
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} else {
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mutableDefaults = defaults.mutableDefaults;
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}
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return create({
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options: merge.options(defaults.options, options),
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handler: defaults.handler,
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mutableDefaults
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});
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};
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got.mergeInstances = (...args) => create(merge.instances(args));
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got.stream = (url, options) => got(url, {...options, stream: true});
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for (const method of aliases) {
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got[method] = (url, options) => got(url, {...options, method});
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got.stream[method] = (url, options) => got.stream(url, {...options, method});
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}
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Object.assign(got, {...errors, mergeOptions: merge.options});
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Object.defineProperty(got, 'defaults', {
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value: defaults.mutableDefaults ? defaults : deepFreeze(defaults),
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writable: defaults.mutableDefaults,
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configurable: defaults.mutableDefaults,
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enumerable: true
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});
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return got;
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};
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module.exports = create;
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