metamaps--metamaps/realtime/node_modules/redis/examples/file.js

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// Read a file from disk, store it in Redis, then read it back from Redis.
var redis = require("redis"),
client = redis.createClient(),
fs = require("fs"),
filename = "kids_in_cart.jpg";
// Get the file I use for testing like this:
// curl http://ranney.com/kids_in_cart.jpg -o kids_in_cart.jpg
// or just use your own file.
// Read a file from fs, store it in Redis, get it back from Redis, write it back to fs.
fs.readFile(filename, function (err, data) {
if (err) throw err
console.log("Read " + data.length + " bytes from filesystem.");
client.set(filename, data, redis.print); // set entire file
client.get(filename, function (err, reply) { // get entire file
if (err) {
console.log("Get error: " + err);
} else {
fs.writeFile("duplicate_" + filename, reply, function (err) {
if (err) {
console.log("Error on write: " + err)
} else {
console.log("File written.");
}
client.end();
});
}
});
});