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7 | import {Cacher} from './cacher.js'
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8 |
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9 | export default function wrapper(instance, option) {
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10 |
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11 | const cacher = new Cacher(option)
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12 |
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13 | const unCacheMethods = [
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14 | 'delete',
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15 | 'head',
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16 | 'options',
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17 | 'post',
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18 | 'put',
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19 | 'patch'
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20 | ]
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21 |
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22 | function axiosWithCache(...arg) {
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23 | if(arg.length === 1 && (arg[0].method === 'get' || arg[0].method === undefined)) {
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24 | return requestWithCacheCheck(arg[0], instance, ...arg)
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25 | }else {
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26 | return instance(...arg)
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27 | }
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28 | }
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29 |
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30 | function requestWithCacheCheck(option, func, ...arg) {
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31 | if(cacher.needCache(option)) {
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32 | if(cacher.hasCache(option)) {
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33 | console.log('命中!')
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34 | return Promise.resolve(cacher.getCache(option))
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35 | }else {
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36 | console.log('未命中,进缓存。')
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37 | return func(...arg).then(response => {
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38 | cacher.setCache(option, response)
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39 | return response
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40 | })
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41 | }
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42 | }else {
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43 | return instance(...arg)
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44 | }
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45 | }
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46 |
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47 | axiosWithCache.get = function(...arg) {
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48 | if(arg.length === 1) {
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49 | return requestWithCacheCheck({
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50 | url: arg[0]
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51 | }, instance.get, ...arg)
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52 | }else if(arg.length === 2) {
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53 | return requestWithCacheCheck({
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54 | url: arg[0],
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55 | ...arg[1]
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56 | }, instance.get, ...arg)
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57 | }else {
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58 | return instance.get(...arg)
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59 | }
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60 | }
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61 |
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62 | axiosWithCache.__addFilter = function(filter) {
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63 | cacher.addFilter(filter)
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64 | }
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65 |
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66 | axiosWithCache.__removeFilter = function(filter) {
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67 | cacher.removeFilter(filter)
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68 | }
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69 |
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70 | unCacheMethods.forEach(method => {
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71 | axiosWithCache[method] = function(...arg) {
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72 | return instance[method](...arg)
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73 | }
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74 | })
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75 |
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76 | return axiosWithCache
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77 | }
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