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Enhance ephemeral data blobs API #2

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Enhance ephemeral data blobs API #2

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23 changes: 21 additions & 2 deletions lib/redisio.js
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Original file line number Diff line number Diff line change
Expand Up @@ -714,9 +714,14 @@ async function retrieveFrameData(fmtOrKey, stream_index = 0, pts = 0, idx = '')
return frameData;
}

async function storeBlob (data) {
async function storeBlob (data, customKey = '') {
let redis = await redisPool.use();
let key = `${config.redis.prepend}:blob:${Math.trunc(Math.random() * Number.MAX_SAFE_INTEGER)}`;
let key = `${config.redis.prepend}:blob:`;
if (customKey && typeof customKey === 'string') {
key += customKey;
} else {
key += `${Math.trunc(Math.random() * Number.MAX_SAFE_INTEGER)}`;
}
let result = await redis.setBuffer(key, data, 'PX', config.redis.ephemeralTTL);
redisPool.recycle(redis);
if (result != 'OK') {
Expand All @@ -741,6 +746,19 @@ async function retrieveBlob (key) {
return result;
}

async function checkBlob (key) {
let redis = await redisPool.use();
if (typeof key === 'number') {
key = `${config.redis.prepend}:blob:${key}`;
}
if (!key.startsWith(`${config.redis.prepend}:blob:`)) {
key = `${config.redis.prepend}:blob:${key}`;
}
let result = await redis.pexpire(key, config.redis.ephemeralTTL);
redisPool.recycle(redis);
return (result === 1) ? key : null;
}

async function createEquivalent (source, target) {
if (source.url && typeof source.url === 'string') {
source = source.url;
Expand Down Expand Up @@ -1266,6 +1284,7 @@ module.exports = {
retrieveFrameData,
storeBlob,
retrieveBlob,
checkBlob,
resetCaches,
createEquivalent,
createRendition,
Expand Down