dweb-transports/README.md

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# DwebTransports
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General transport library for Decentralized Web handles multiple underlying transports.
## Background
This library is part of a general project at the Internet Archive (archive.org)
to support the decentralized web.
###Goals
* to allow a single API that can be used for most basic interactions with
decentralized transports.
* to support multiple URLs, on different transports, so that the (current) underlying unreliability
is hidden.
### Node Installation
* Clone this repo.
* Until this is in npm, add the line
`"dweb-transports": "git+https://git@github.com/mitra42/dweb-transports.git",`
to your package.json file in the dependencies section.
* (TODO Note location above will change to an internetarchive repo)
* `npm install dweb-transports` will install the dependencies including IPFS & WebTorrent
`const DwebTransports = require(dweb-transport)` will add all Transports to a Javascript file.
* TODO writeup how to require only some of the transports.
* Then see usage API below
### Installation and usage in the Browser
* TODO installation of dev dependencies
* Install npm & node
* Clone this repo and cd to it.
* `npm bundle` will create dist/dweb_transports_bundle.js
* Add `<SCRIPT type="text/javascript" src="dweb_transports_bundle.js"></SCRIPT>` to your `<HEAD>`
Then code like this should work.
```
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async function main(url) {
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try {
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// and if not found will use the defaulttransports specified here.
await DwebTransports.p_connect({
statuselement: document.getElementById("statuselement"), // Where to build status indicator
defaulttransports: ["HTTP","IPFS"], // Default transports if not specified
transports: searchparams.getAll("transport") // Allow override default from URL parameters
}, verbose); // Pass verbose global parameter from command line
// Any code you want to run after connected to transports goes here.
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} catch(err) {
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console.log("App Error:", err);
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alert(err.message);
}
}
var searchparams = new URL(window.location.href).searchParams;
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// Allow specifying ?verbose=true in URL to get debugging, and transport=HTTP etc
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var verbose = searchparams.get("verbose") || false;
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```
See [example_block.html](./example_block.html) for an example of connecting, storing and retrieving.