TypeScript is a typed superset of JavaScript that compiles to plain JavaScript. It supports definition files that can contain type information of existing JavaScript libraries, allowing TypeScript to understand the existing JavaScript code.
Redis is an open source, in-memory data structure store, used as a database, cache, and message broker. It supports data structures such as strings, hashes, lists, sets, sorted sets with range queries, bitmaps, hyperloglogs, and geospatial indexes with radius queries.
In this article, we'll show how to use TypeScript with Redis to cache data and manage it effectively. We'll cover the following topics:
Before we get started, we need to install the following tools:
Now that we have the required tools installed, we can set up TypeScript. First, we need to install the TypeScript compiler:
npm install -g typescript
Once the TypeScript compiler is installed, we can create a .ts
file and start writing our code. In this article, we'll name our file redis.ts
.
We can use the SET
command in Redis to cache data. The SET
command takes a key and a value as arguments. The value can be either a string, an integer, or a floating point number.
In our redis.ts
file, we'll cache a user's ID and name:
let userId: number = 1;
let userName: string = "John Doe";
redis.set("user:id", userId);
redis.set("user:name", userName);
We can use the GET
command in Redis to retrieve data. The GET
command takes a key as an argument and returns the value of the key.
In our redis.ts
file, we'll retrieve the user's ID and name:
let userId: number = redis.get("user:id");
let userName: string = redis.get("user:name");
We can use the DEL
command in Redis to delete data. The DEL
command takes one or more keys as arguments and returns the number of keys that were deleted.
In our redis.ts
file, we'll delete the user's ID and name:
redis.del("user:id");
redis.del("user:name");
We can use the SET
command in Redis to update data. The SET
command takes a key and a value as arguments. The value can be either a string, an integer, or a floating point number.
In our redis.ts
file, we'll update the user's name:
let userName: string = "Jane Doe";
redis.set("user:name", userName);
In this article, we've shown how to use TypeScript with Redis to cache data and manage it effectively. We've covered the following topics:
If you're looking to learn more about TypeScript or Redis, we've included some resources below.