diff options
Diffstat (limited to 'sandbox/testAppNevena/Front/node_modules/make-fetch-happen/lib/cache/index.js')
-rw-r--r-- | sandbox/testAppNevena/Front/node_modules/make-fetch-happen/lib/cache/index.js | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/sandbox/testAppNevena/Front/node_modules/make-fetch-happen/lib/cache/index.js b/sandbox/testAppNevena/Front/node_modules/make-fetch-happen/lib/cache/index.js new file mode 100644 index 00000000..cca93d9b --- /dev/null +++ b/sandbox/testAppNevena/Front/node_modules/make-fetch-happen/lib/cache/index.js @@ -0,0 +1,45 @@ +const { NotCachedError } = require('./errors.js') +const CacheEntry = require('./entry.js') +const remote = require('../remote.js') + +// do whatever is necessary to get a Response and return it +const cacheFetch = async (request, options) => { + // try to find a cached entry that satisfies this request + const entry = await CacheEntry.find(request, options) + if (!entry) { + // no cached result, if the cache mode is 'only-if-cached' that's a failure + if (options.cache === 'only-if-cached') + throw new NotCachedError(request.url) + + // otherwise, we make a request, store it and return it + const response = await remote(request, options) + const entry = new CacheEntry({ request, response, options }) + return entry.store('miss') + } + + // we have a cached response that satisfies this request, however if the cache + // mode is 'no-cache' then we send the revalidation request no matter what + if (options.cache === 'no-cache') + return entry.revalidate(request, options) + + // if the cached entry is not stale, or if the cache mode is 'force-cache' or + // 'only-if-cached' we can respond with the cached entry. set the status + // based on the result of needsRevalidation and respond + const _needsRevalidation = entry.policy.needsRevalidation(request) + if (options.cache === 'force-cache' || + options.cache === 'only-if-cached' || + !_needsRevalidation) + return entry.respond(request.method, options, _needsRevalidation ? 'stale' : 'hit') + + // if we got here, the cache entry is stale so revalidate it + return entry.revalidate(request, options) +} + +cacheFetch.invalidate = async (request, options) => { + if (!options.cachePath) + return + + return CacheEntry.invalidate(request, options) +} + +module.exports = cacheFetch |