소스 검색

remove confusing readme

master
nitowa 1 년 전
부모
커밋
0c25da5c16
1개의 변경된 파일0개의 추가작업 그리고 91개의 파일을 삭제
  1. 0
    91
      README.md

+ 0
- 91
README.md 파일 보기

@@ -1,91 +0,0 @@
1
-# Overview 
2
-
3
-httXrp is a proof of concept for a truly serverless web architecture. If cloud simply means "a server owned by someone else", httXrp pushes that definition to its limit -or- perhaps its logical conclusion: What if that "someone else" never even intended that server to be used that way but can't do anything about it?
4
-
5
-# How it works
6
-
7
-## 1: Getting data into and out of the blockchain
8
-
9
-Transactions on the ripple blockchain are allowed to carry up to 1kB of arbitrary data via the memo field. 
10
-We can use this to store data of any size by building a tree of references between these transactions that can then be reassembled by reading them back from the blockchain.
11
-In order to generate these transactions a library called [xrpio](https://gitea.nitowa.xyz/npm-packages/xrpio.git) is used to send minimum-denomination transactions between two user controlled wallets.
12
-
13
-Highly simplified, you can visualize the process like this:
14
-
15
-<img src="https://i.imgur.com/G2HofSE.gif" alt="xrpio" width="800"/>
16
-
17
-## 2: Abstracting the webserver away from the web
18
-
19
-Using tools like `webpack`, it is possible to condense even modern complex single-page-applications into a single html file. As `xrpio` is written in JavaScript, it is even possible to embed it into such an HTML file, the use of which will become more clear a few paragraphs below.
20
-
21
-Since such a condensed HTML file is effectively nothing more than a long string it is possible to use `xrpio` to store them into the ripple blockchain and to retrieve them via a single identifying hash.
22
-
23
-<img src="https://i.imgur.com/Rwo37xJ.gif" alt="serverless web" width="650"/>
24
-
25
-## 3: Backendless dynamic web applications: Databases without databases
26
-
27
-Superficially, this technique is limited to serving static webpages, as there can be no backend communicating with these pages without betraying the serverless premise. However, since it is possible to embed `xrpio` into such a "static" page, it is possible to listen for transactions on the blockchain containing valid xrpio hashes and to dynamically update the webpage's content based on the stored data. 
28
-
29
-All necessary mechanisms can easily be embedded within that webpage, which allows us to build complex webapplications without any need for a backend server. 
30
-
31
-To prove the feasibility of this approach, this project contains a small example application in the form of a shoutbox:
32
-
33
-<img src="https://i.imgur.com/5gYLuYc.png" alt="shoutbox" width="450"/>
34
-
35
-The exact procedure is more easily explained in code than visually. The presented code snippets should be considered pseudocode, but if you're interested in the exact steps please take a look into [ShoutboxData.service.ts](https://gitea.nitowa.xyz/nitowa/httxrp/src/branch/master/src/frontend/src/app/services/ShoutboxData.service.ts). The actual implementation isn't any more complex than the steps below but they were altered for readability reasons.
36
-
37
-### Submitting a new shout to the shoutbox
38
-```js
39
-//When submitting a new shout, first the user creates a xrpio write between two of their own wallets
40
-submitShout = async (shout: any) => {
41
-    const shoutHash = await xrpio.treeWrite(shout, userWallet1.address, userWallet2.secret)
42
-    return await submit(shoutHash)
43
-}
44
-
45
-//After the shout has been written to the blockchain, 
46
-//the hash pointing to the data is sent to the address keeping track of the application's state
47
-submit = async (shoutHash: string) => {
48
-    return await xrpio.writeRaw({ data: shoutHash }, shoutboxAddress, userWallet1.secret)
49
-}
50
-```
51
-
52
-### Loading the application state and live updating it
53
-```js
54
-//Loading old data is as easy as parsing the historical transactions of the shoutboxAddress
55
-loadHistory = async () => {
56
-    const raw_txs = await getTransactions(shoutboxAddress)
57
-    //Extracts hashes from memos and reads them with xrpio
58
-    const shouts = await parseMemos(raw_txs.map(getMemo)) 
59
-    history = shouts
60
-}
61
-
62
-//Fetching new data as it comes in is also possible by simply subscribing to new transactions for the shoutboxAddress
63
-listen = async () => {
64
-    await subscribeTxs(async (raw_tx: any) => {
65
-        //Extracts hashes from memos and reads them with xrpio
66
-        const shout = await parseMemos(getMemo(raw_tx))
67
-        history.push(shout)
68
-    })
69
-}
70
-```
71
-
72
-# Building the project
73
-
74
-Prerequisites: 
75
-- NodeJS 17 (14 and up probably work, versions newer than 18 fail to build the Angular frontend)
76
-- npm
77
-
78
-Setup and build steps:
79
-- `npm i` in the project root
80
-- `cd src/frontend`
81
-- `npm i` again for the frontend build
82
-- `npm run start` in the project root. This will iteratively build the frontend, Deploy scripts, Deploy the frontend to the ripple blockchain and ultimately generate a gateway webpage under `gateway/index.html`.
83
-- Open `gateway/index.html` with a browser and you should see the shoutbox webpage after a short load.
84
-
85
-Troubleshooting:
86
-- If the project as been dormant for a while it is possible that the testnet wallets have been purged. In this case you have to repopulate the entries under [Configuration.ts](https://gitea.nitowa.xyz/nitowa/httxrp/src/branch/master/src/Configuration.ts) as well as the shoutboxAddress in [ShoutboxData.service.ts](https://gitea.nitowa.xyz/nitowa/httxrp/src/branch/master/src/frontend/src/app/services/ShoutboxData.service.ts) with fresh wallets. Funded testnet wallets can be generated via the [faucet](https://xrpl.org/xrp-testnet-faucet.html). 
87
-
88
-# Credits
89
-
90
-- This project was originally inspired by indImm (https://ndm-inf.github.io/ndm/main), a ripple-based file storage using IPFS.
91
-- xrpio (https://gitea.nitowa.xyz/npm-packages/xrpio.git) is heavily used in the technical architecture of this project. It is also written and maintained by me.

Loading…
취소
저장