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Hello. This sequence
is about the Pharo Web Stack.

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I'll give you an overview
of existing frameworks

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and the ones we'll be using
in this course.

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This is a diagram of what happens
to an incoming HTTP request.

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"Zinc" is the basic HTTP/HTTPS
server built into Pharo.

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Teapot is above Zinc,
and there is a course available

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on Teapot syntax.

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Then, there's a series of format
frameworks, like JSON and Stone.

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There's also Seaside REST.

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Briefly, it's how to program REST
over Seaside.

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Seaside is the web framework
we will be using

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in Tinyblog.

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That's why we introduced
Seaside to you, as well.

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It is in widespread use in businesses.

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We will also use Voyage,

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which is a persistence framework
for documents.

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We take our objects and store them
in document form, in Mongo bases.

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There are others, of course.

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Garage is a sort of driver
for all relational databases.

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I'll also show you Magritte.

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Magritte is a way
of describing data

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and generating webforms
automatically, as a result,

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instead of manually.

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Reef is an application
that enables you

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to do embarked JavaScript
in web components.

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But we won't go into it further
in this course.

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Mustache is a template system
that generates HTML on the fly.

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Bootstrap is
the Twitter Bootstrap library,

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fully integrated into Seaside.

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These are the most
commonly used applications,

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but you have plenty of other packages
on top of Pharo.

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The ones used to connect to Amazon
or to do elastic searches, for example.

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We will be using Seaside.

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It's a web framework
for building dynamic applications

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based on reusable components.

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We don't really have to
manage requests.

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Seaside does it for us.

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Documentation is available
at Seaside.st.

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The site is being rebuilt.

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They have also compiled
a 250-page reference book

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at book.seaside.st.

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You can take a look, but we'll cover
the main points here

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in this course.

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Regarding persistence,

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as I said earlier,
there are two major frameworks

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that enable you to store documents
in NoSQL.

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They are based on components
like Mongo, CouchDB, and Riak.

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We use Voyage as an abstraction
on top of MongoDB.

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And Garage is a framework

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offering a unified API
for relational databases.

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We won't use it in this course,
but it has drivers

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for Postgres, MySQL, SQLite,
and OpenDBX.

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And it is always being improved.

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We are going to show you
another interesting feature.

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We have a framework called Magritte,
for the surrealist painter.

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It writes descriptions for your data

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and use them to generate
Seaside components.

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It really helps boost productivity
in creating web applications.

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To conclude, I would say

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Pharo offers a rich ecosystem.

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Most of the companies using Pharo
are web developers.

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It is business-ready.

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Seaside is really innovative,

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because it goes against certain
entrenched ways of programming.

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It helps you think differently.