Autosave: 2024-11-24 10:53:19

neuron/6bd22abe-1c26-4082-9ee1-2e98738d9784/AWS_SQS.md

@@ -0,0 +1,52 @@
+---
+tags: [AWS, SQS]
+---
+
+# AWS SQS
+
+SQS ("Simple Queue Service") is a service that allows you to send, store and
+receive messages between apps and software components built in AWS. It helps
+with decoupling and scaling.
+
+> Amazon SQS is a distributed queue system that enables web service applications
+> to quickly and reliably queue messages that one component in the application
+> generates to be consumed by another component where a queue is a temporary
+> repository for messages that are awaiting processing.
+
+As the name indicates, its operating mode is that of a [queue](Queue.md) data
+structure offering first-in, first-out and other queue implementations.
+
+## Example use case
+
+![SQS example diagram](static/SQS-example.png)
+
+A request is made to an [API Gateway](API_Gateway.md) endpoint with a body. The
+body is then parsed and inserted into a database.
+
+The benefit of adding SQS as a buffer between the request and the updating of
+the database:
+
+- It can better handle spikes in activity, buffering requests to the database
+  until it is ready to handle them. This prevents the messages getting lost if
+  the server is overloaded
+
+- There is a retry mechanism built into SQS. If the database write fails, the
+  message stays in the queue allowing for retries
+
+- It facilitates decoupling. Without SQS as the middleman the responsibilites of
+  the lambda would be compounded - it would receive requests and update the DB,
+  plus any additional processes such sending a message to SNS. In the solution
+  we have two lambdas co-ordinating actions in a decouped manner via SQS.
+
+## Dead letters
+
+As SQS allows for multiple retries we could end up in a situation where a
+malformed message is continually processed in a loop. To avoid this you can set
+a maxiumum retry limit and, when this is exceeded, shift the problematic message
+to the dead letter queue (DLQ) and remove it from the main queue.
+
+![SQS deadletter example](static/SQS-deadletter.png)
+
+If the DLQ reaches a certain threshold this can trigger additional handling such
+as raising an Alert in [CloudWatch](./AWS_CloudWatch.md) or other monitoring
+tool.

neuron/6bd22abe-1c26-4082-9ee1-2e98738d9784/JavaScript_module_types.md

@@ -0,0 +1,33 @@
+---
+tags: [javascript]
+created: Sunday, November 24, 2024
+---
+
+# JavaScript module types
+
+The following info is useful when you wish to use modern JavaScript tooling
+outside of a build system.
+
+For instance I wanted to use a bundled React application in a static website not
+created using NPM.
+
+Great account by
+[Julia Evans](https://jvns.ca/blog/2024/11/18/how-to-import-a-javascript-library/).
+
+In essence there are three main module formats:
+
+- CommonJS
+
+  - Native Node JS module system using `require()` and `module.exports()`
+
+- ESModules
+
+  - The defacto standard that works in both the browser and Node.js
+
+- AMD
+
+  - A browser-friendly version of CommonJS since superseded by ESModules
+
+Then there is UMD, _Universal Module Definition_. This is a wrapper that
+combines compatibility for multiple module systems and works with AMD, CommonJS,
+as well as global variables.

neuron/6bd22abe-1c26-4082-9ee1-2e98738d9784/Messaging_services.md

@@ -0,0 +1,19 @@
+---
+tags: [AWS]
+---
+
+# AWS Messaging services
+
+## SNS
+
+> SNS: Simple Notification Service
+
+Similar to SQS but the focus is on notifications rather than messages, i.e
+events that fire when something specific happens, not just a message-send event.
+It can be used for passing notifications between applications or to persons
+through SMS, text, push notifications and email.
+
+**SNS pushes messages out to subscribers while SQS stores the messages until
+someone reads them.**
+
+Relation between SNS and SQS - typically paired aren't they.

neuron/6bd22abe-1c26-4082-9ee1-2e98738d9784/a771a6d9_attributes_of_internet_enclosure.md

@@ -0,0 +1,72 @@
+---
+tags: [ecopolsoc, internet]
+created: Friday, November 22, 2024
+---
+
+# a771a6d9_defining_internet_enclosure
+
+## Defining _enclosure_
+
+The attempt by capital interests to encircle, control and contain networked
+digital communication with the object of extracting financial value from the
+exchanges and the community from which they arise.
+
+This constitutes the commodification of a human-constituted resource, like
+labour rather than a natural resource, like oil.
+
+## Main characteristics
+
+### Strategic denial of alternative communication media
+
+Where there is a _multiplicity_ of media and within media, a multiplicity of
+channels, capital steers communication toward a _single_ entity.
+
+In a "democratic free-market society", capital cannot simply ban alternative
+media, it can however work to diminish the influence of alternatives through the
+strategic denial of interoperability and the aquisition and subsumption of
+rivals into its system.
+
+### Tyrannical control of the rules of communication
+
+Where the standards of communication are elective and established organically
+and collaboratively between peers (possibly even democratically), capital
+enforces rules derived externally and applied in an authoritarian manner. These
+rules are mutable but changes are enacted unilaterally and arbitrarily by the
+owners of the medium, not its users. Hence, tyranny in its technical political
+sense.
+
+### Total control of information and content
+
+Where individuals share information freely in collaborative enterprise with
+diminished concern for ownership (typically favouring citation and iteration as
+models), capital takes full possession of the information generated such that it
+can be removed and destroyed at will without consultation.
+
+### Surveillance
+
+Where communication is anonymised (loosly or strictly (i.e. through
+cryptographic means)), capital _surveils_ all exchanges and the behaviour of
+community members.
+
+Typically this is not _personal_ in the sense of being interested in the
+specific user's identity, rather it is abstracted into a composite of the
+person's preferences which may or may not disclose their legal identity (i.e
+metadata).
+
+This characteristic is both an _attribute_ of internet enclosure and its
+ultimate reason for existence. It is critical to the mechanism of extraction
+since it provides both data that can be sold to other capital interests and
+content that can be used to sell to community members as consumers.
+
+### Artificial promotion of commercial content and prolongation of engagement
+
+Where engagement with media is idiosyncratic and organic, capital circumscribes
+the field. This is done to prolong engagement.
+
+At one pole this is achieved through the excitation of visceral responses by
+artificially favouring content that titillates, disgusts or angers the user. At
+the other, it is achieved through mollification and the coddling of the user.
+The user encounters only like-minded fellows who affirm and repeat his existing
+beliefs and values, creating community and a sense of safety through the
+othering of contrary viewpoints. Both techniques are demagogic in nature
+familiar from the control mechanisms of cults and extreme political ideologies.

neuron/6bd22abe-1c26-4082-9ee1-2e98738d9784/index.md

@@ -13,12 +13,16 @@ computer science.
 
 ![not-by-ai-badge](static/not-by-ai-alternative--light.svg)
  
-**Build ID:** e74b7b2d-cac4-4437-99e5-f94adaa32c60
+**Build ID:** 6bd22abe-1c26-4082-9ee1-2e98738d9784
 
-**Published:** Thu 21 Nov 2024 18:26:01
+**Published:** Sun 24 Nov 2024 10:53:17
 
 ### Recent edits 
 
+- [[a771a6d9_attributes_of_internet_enclosure]] 
+- [[JavaScript_module_types]] 
+- [[AWS_SQS]] 
+- [[Messaging_services]] 
 - [[0716531c_rewilding_the_internet]] 
 - [[f6564af9_AOL_and_early_internet_enclosure]] 
 - [[Bauman_quote]] 
@@ -27,13 +31,9 @@ computer science.
 - [[Passing_arguments_and_options_to_Bash_scripts]] 
 - [[Functions_in_Bash]] 
 - [[Bash_file_exists]] 
-- [[Bash_store_status_of_command_execution]] 
-- [[Bash_colour_output]] 
-- [[Terraform]] 
-- [[Classes_in_Python]] 
 
 
-### All notes (495) 
+### All notes (498) 
 
 - [[0716531c_rewilding_the_internet]] 
 - [[241fe1a3_the_Web_versus_modem_BBSs]] 
@@ -48,6 +48,7 @@ computer science.
 - [[AWS_CLI]] 
 - [[AWS_CloudWatch]] 
 - [[AWS_SAM_and_Docker]] 
+- [[AWS_SQS]] 
 - [[AWS_architecture_hierarchy]] 
 - [[Accessing_metadata_about_SQL_database]] 
 - [[Accessing_secrets_from_a_Lambda]] 
@@ -255,6 +256,7 @@ computer science.
 - [[Invoking_the_shell_in_Python]] 
 - [[Iterating_in_React]] 
 - [[Iterating_through_complex_data_structures_in_Python]] 
+- [[JavaScript_module_types]] 
 - [[Joins_in_SQL]] 
 - [[Journey_of_GraphQL_query]] 
 - [[Key_characteristics_of_GraphQL]] 
@@ -513,6 +515,7 @@ computer science.
 - [[Writing_to_files_in_Python]] 
 - [[Zero_property_of_multiplication]] 
 - [[Zip_function_in_Python]] 
+- [[a771a6d9_attributes_of_internet_enclosure]] 
 - [[c301a0b3-1d8_Mosaic_Netscape_and_Browser_Wars]] 
 - [[c8173d17_TIMPs]] 
 - [[cfbef1c4_web_precursors]] 

neuron/e74b7b2d-cac4-4437-99e5-f94adaa32c60/Messaging_services.md

@@ -1,32 +0,0 @@
----
-tags: [AWS]
----
-
-# AWS Messaging services
-
-## SQS
-
-> SQS: Simple Queue Service
-
-SQS is a service that allows you to send, store and receive messages between
-apps and software components built in AWS, with automatic encryption. It helps
-with decoupling and scaling.
-
-As the name indicates, its operating mode is that of a
-[queue](Queue.md) data structure offering first-in, first-out
-and other queue implementations.
-
-An example application of this would be to set up an SQS queue that receives
-messages and triggers a lambda whenever a new message is added.
-
-## SNS
-
-> SNS: Simple Notification Service
-
-Similar to SQS but the focus is on notifications rather than messages, i.e
-events that fire when something specific happens, not just a message-send event.
-It can be used for passing notifications between applications or to persons
-through SMS, text, push notifications and email.
-
-**SNS pushes messages out to subscribers while SQS stores the messages until
-someone reads them.**

zk/JavaScript_module_types.md

@@ -0,0 +1,33 @@
+---
+tags: [javascript]
+created: Sunday, November 24, 2024
+---
+
+# JavaScript module types
+
+The following info is useful when you wish to use modern JavaScript tooling
+outside of a build system.
+
+For instance I wanted to use a bundled React application in a static website not
+created using NPM.
+
+Great account by
+[Julia Evans](https://jvns.ca/blog/2024/11/18/how-to-import-a-javascript-library/).
+
+In essence there are three main module formats:
+
+- CommonJS
+
+  - Native Node JS module system using `require()` and `module.exports()`
+
+- ESModules
+
+  - The defacto standard that works in both the browser and Node.js
+
+- AMD
+
+  - A browser-friendly version of CommonJS since superseded by ESModules
+
+Then there is UMD, _Universal Module Definition_. This is a wrapper that
+combines compatibility for multiple module systems and works with AMD, CommonJS,
+as well as global variables.

zk/a771a6d9_attributes_of_internet_enclosure.md

@@ -0,0 +1,72 @@
+---
+tags: [ecopolsoc, internet]
+created: Friday, November 22, 2024
+---
+
+# a771a6d9_defining_internet_enclosure
+
+## Defining _enclosure_
+
+The attempt by capital interests to encircle, control and contain networked
+digital communication with the object of extracting financial value from the
+exchanges and the community from which they arise.
+
+This constitutes the commodification of a human-constituted resource, like
+labour rather than a natural resource, like oil.
+
+## Main characteristics
+
+### Strategic denial of alternative communication media
+
+Where there is a _multiplicity_ of media and within media, a multiplicity of
+channels, capital steers communication toward a _single_ entity.
+
+In a "democratic free-market society", capital cannot simply ban alternative
+media, it can however work to diminish the influence of alternatives through the
+strategic denial of interoperability and the aquisition and subsumption of
+rivals into its system.
+
+### Tyrannical control of the rules of communication
+
+Where the standards of communication are elective and established organically
+and collaboratively between peers (possibly even democratically), capital
+enforces rules derived externally and applied in an authoritarian manner. These
+rules are mutable but changes are enacted unilaterally and arbitrarily by the
+owners of the medium, not its users. Hence, tyranny in its technical political
+sense.
+
+### Total control of information and content
+
+Where individuals share information freely in collaborative enterprise with
+diminished concern for ownership (typically favouring citation and iteration as
+models), capital takes full possession of the information generated such that it
+can be removed and destroyed at will without consultation.
+
+### Surveillance
+
+Where communication is anonymised (loosly or strictly (i.e. through
+cryptographic means)), capital _surveils_ all exchanges and the behaviour of
+community members.
+
+Typically this is not _personal_ in the sense of being interested in the
+specific user's identity, rather it is abstracted into a composite of the
+person's preferences which may or may not disclose their legal identity (i.e
+metadata).
+
+This characteristic is both an _attribute_ of internet enclosure and its
+ultimate reason for existence. It is critical to the mechanism of extraction
+since it provides both data that can be sold to other capital interests and
+content that can be used to sell to community members as consumers.
+
+### Artificial promotion of commercial content and prolongation of engagement
+
+Where engagement with media is idiosyncratic and organic, capital circumscribes
+the field. This is done to prolong engagement.
+
+At one pole this is achieved through the excitation of visceral responses by
+artificially favouring content that titillates, disgusts or angers the user. At
+the other, it is achieved through mollification and the coddling of the user.
+The user encounters only like-minded fellows who affirm and repeat his existing
+beliefs and values, creating community and a sense of safety through the
+othering of contrary viewpoints. Both techniques are demagogic in nature
+familiar from the control mechanisms of cults and extreme political ideologies.