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Add template to make Redis usage cleaner

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Zed 2022-01-16 19:22:27 +01:00
parent 2aa07e7395
commit 23f87c115a
1 changed files with 15 additions and 12 deletions
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27
src/redis_cache.nim
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@ -13,6 +13,9 @@ var
rssCacheTime: int
listCacheTime*: int
template dawait(future) =
discard await future
# flatty can't serialize DateTime, so we need to define this
proc toFlatty*(s: var string, x: DateTime) =
s.toFlatty(x.toTime().toUnix())
@ -33,9 +36,9 @@ proc migrate*(key, match: string) {.async.} =
let list = await r.scan(newCursor(0), match, 100000)
r.startPipelining()
for item in list:
discard await r.del(item)
dawait r.del(item)
await r.setk(key, "true")
discard await r.flushPipeline()
dawait r.flushPipeline()
proc initRedisPool*(cfg: Config) {.async.} =
try:
@ -68,7 +71,7 @@ proc get(query: string): Future[string] {.async.} =
proc setEx(key: string; time: int; data: string) {.async.} =
pool.withAcquire(r):
discard await r.setEx(key, time, data)
dawait r.setEx(key, time, data)
proc cache*(data: List) {.async.} =
await setEx(data.listKey, listCacheTime, compress(toFlatty(data)))
@ -81,25 +84,25 @@ proc cache*(data: Profile) {.async.} =
let name = toLower(data.username)
pool.withAcquire(r):
r.startPipelining()
discard await r.setEx(name.profileKey, baseCacheTime, compress(toFlatty(data)))
discard await r.setEx("i:" & data.id , baseCacheTime, data.username)
discard await r.hSet(name.pidKey, name, data.id)
discard await r.flushPipeline()
dawait r.setEx(name.profileKey, baseCacheTime, compress(toFlatty(data)))
dawait r.setEx("i:" & data.id , baseCacheTime, data.username)
dawait r.hSet(name.pidKey, name, data.id)
dawait r.flushPipeline()
proc cacheProfileId*(username, id: string) {.async.} =
if username.len == 0 or id.len == 0: return
let name = toLower(username)
pool.withAcquire(r):
discard await r.hSet(name.pidKey, name, id)
dawait r.hSet(name.pidKey, name, id)
proc cacheRss*(query: string; rss: Rss) {.async.} =
let key = "rss:" & query
pool.withAcquire(r):
r.startPipelining()
discard await r.hSet(key, "rss", rss.feed)
discard await r.hSet(key, "min", rss.cursor)
discard await r.expire(key, rssCacheTime)
discard await r.flushPipeline()
dawait r.hSet(key, "rss", rss.feed)
dawait r.hSet(key, "min", rss.cursor)
dawait r.expire(key, rssCacheTime)
dawait r.flushPipeline()
proc getProfileId*(username: string): Future[string] {.async.} =
let name = toLower(username)